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Dzul MC, Kendall WL, Yackulic CB, Van Haverbeke DR, Mackinnon P, Young K, Pillow MJ, Thomas J. Estimating migration timing and abundance in partial migratory systems by integrating continuous antenna detections with physical captures. J Anim Ecol 2024. [PMID: 38561901 DOI: 10.1111/1365-2656.14076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 02/09/2024] [Indexed: 04/04/2024]
Abstract
Many populations migrate between two different habitats (e.g. wintering/foraging to breeding area, mainstem-tributary, river-lake, river-ocean, river-side channel) as part of their life history. Detection technologies, such as passive integrated transponder (PIT) antennas or sonic receivers, can be placed at boundaries between habitats (e.g. near the confluence of rivers) to detect migratory movements of marked animals. Often, these detection systems have high detection probabilities and detect many individuals but are limited in their ability to make inferences about abundance because only marked individuals can be detected. Here, we introduce a mark-recapture modelling approach that uses detections from a double-array PIT antenna system to imply movement directionality from arrays and estimate migration timing. Additionally, when combined with physical captures, the model can be used to estimate abundances for both migratory and non-migratory groups and help quantify partial migration. We first test our approach using simulation, and results indicate our approach displayed negligible bias for total abundance (less than ±1%) and slight biases for state-specific abundance estimates (±1%-6%). We fit our model to array detections and physical captures of three native fishes (humpback chub [Gila cypha], flannelmouth sucker [Catostomus latipinnis] and bluehead sucker [Catostomus discobolus]) in the Little Colorado River (LCR) in Grand Canyon, AZ, a system that exhibits partial migration (i.e. includes residents and migrants). Abundance estimates from our model confirm that, for all three species, migratory individuals are much more numerous than residents. There was little difference in movement timing between 2021 (a year without preceding winter/spring floods) and 2022 (a year with a small flood occurring in early April). In both years, flannelmouth sucker arrived in mid-March whereas humpback chub and bluehead sucker arrivals occurred early- to mid-April. With humpback chub and flannelmouth sucker, movement timing was influenced by body size so that large individuals were more likely to arrive early compared to smaller individuals. With more years of data, this model framework could be used to evaluate ecological questions pertaining to flow cues and movement timing or intensity, relative trends in migrants versus residents and ecological drivers of skipped spawning.
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Affiliation(s)
- M C Dzul
- Southwest Biological Science Center, U.S. Geological Survey, Grand Canyon Monitoring and Research Center, Flagstaff, Arizona, USA
| | - W L Kendall
- Colorado Cooperative Fish and Wildlife Research Unit, U.S. Geological Survey, Colorado State University, Fort Collins, Colorado, USA
| | - C B Yackulic
- Southwest Biological Science Center, U.S. Geological Survey, Grand Canyon Monitoring and Research Center, Flagstaff, Arizona, USA
| | - D R Van Haverbeke
- U.S. Fish and Wildlife Service, Arizona Fish and Wildlife Conservation Office, Flagstaff, Arizona, USA
| | - P Mackinnon
- Department of Watershed Sciences, Utah State University, Logan, Utah, USA
| | - K Young
- U.S. Fish and Wildlife Service, Arizona Fish and Wildlife Conservation Office, Flagstaff, Arizona, USA
| | - M J Pillow
- U.S. Fish and Wildlife Service, Arizona Fish and Wildlife Conservation Office, Flagstaff, Arizona, USA
| | - J Thomas
- Southwest Biological Science Center, U.S. Geological Survey, Grand Canyon Monitoring and Research Center, Flagstaff, Arizona, USA
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Koeberle AL, Pearsall W, Hammers BE, Mulhall D, McKenna JE, Chalupnicki M, Sethi SA. Whole-lake acoustic telemetry to evaluate survival of stocked juvenile fish. Sci Rep 2023; 13:18956. [PMID: 37919328 PMCID: PMC10622427 DOI: 10.1038/s41598-023-46330-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023] Open
Abstract
Estimates of juvenile survival are critical for informing population dynamics and the ecology of fish, yet these demographic parameters are difficult to measure. Here, we demonstrate that advances in animal tracking technology provide opportunities to evaluate survival of juvenile tagged fish. We implemented a whole-lake telemetry array in conjunction with small acoustic tags (including tags < 1.0 g) to track the fate of stocked juvenile cisco (Coregonus artedi) as part of a native species restoration effort in the Finger Lakes region of New York, USA. We used time-to-event modeling to characterize the survival function of stocked fish, where we infer mortality as the cessation of tag detections. Survival estimates revealed distinct stages of juvenile cisco mortality including high immediate post-release mortality, followed by a period of elevated mortality during an acclimation period. By characterizing mortality over time, the whole-lake biotelemetry effort provided information useful for adapting stocking practices that may improve survival of stocked fish, and ultimately the success of the species reintroduction effort. The combination of acoustic technology and time-to-event modeling to inform fish survival may have wide applicability across waterbodies where receiver arrays can be deployed at scale and where basic assumptions about population closure can be satisfied.
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Affiliation(s)
- Alexander L Koeberle
- New York Cooperative Fish and Wildlife Research Unit, Department of Natural Resources and the Environment, Cornell University, Fernow Hall, Ithaca, NY, 14853, USA.
| | - Webster Pearsall
- New York State Department of Environmental Conservation, Division of Fish, Wildlife, and Marine Resources, Region 8 - Rochester/Western Finger Lakes, Avon, NY, 14414, USA
| | - Brad E Hammers
- New York State Department of Environmental Conservation, Division of Fish, Wildlife, and Marine Resources, Region 8 - Rochester/Western Finger Lakes, Avon, NY, 14414, USA
| | - Daniel Mulhall
- New York State Department of Environmental Conservation, Division of Fish, Wildlife, and Marine Resources, Region 8 - Rochester/Western Finger Lakes, Avon, NY, 14414, USA
| | - James E McKenna
- U.S. Geological Survey, Great Lakes Science Center, Tunison Laboratory of Aquatic Science, 3075 Gracie Road, Cortland, NY, 13045, USA
| | - Marc Chalupnicki
- U.S. Geological Survey, Great Lakes Science Center, Tunison Laboratory of Aquatic Science, 3075 Gracie Road, Cortland, NY, 13045, USA
| | - Suresh A Sethi
- New York Cooperative Fish and Wildlife Research Unit, Department of Natural Resources and the Environment, Cornell University, Fernow Hall, Ithaca, NY, 14853, USA
- Aquatic Research and Environmental Assessment Center, Earth and Environmental Sciences, Brooklyn College, 123 Ingersoll Hall, Brooklyn, NY, 11210, USA
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Jacoby DMP, Piper AT. What acoustic telemetry can and cannot tell us about fish biology. J Fish Biol 2023. [PMID: 37837176 DOI: 10.1111/jfb.15588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/29/2023] [Accepted: 10/11/2023] [Indexed: 10/15/2023]
Abstract
Acoustic telemetry (AT) has become ubiquitous in aquatic monitoring and fish biology, conservation, and management. Since the early use of active ultrasonic tracking that required researchers to follow at a distance their species of interest, the field has diversified considerably, with exciting advances in both hydrophone and transmitter technology. Once a highly specialized methodology, however, AT is fast becoming a generalist tool for those wishing to study or conserve fishes, leading to diversifying application by non-specialists. With this transition in mind, we evaluate exactly what AT has become useful for, discussing how the technological and analytical advances around AT can address important questions within fish biology. In doing so, we highlight the key ecological and applied research areas where AT continues to reveal crucial new insights and, in particular, when combined with complimentary research approaches. We provide a comprehensive breakdown of the state of the art for applications of AT, discussing the ongoing challenges, where its strengths lie, and how future developments may revolutionize fisheries management, behavioral ecology and species protection. Through selected papers we illustrate specific applications across the broad spectrum of fish biology. By bringing together the recent and future developments in this field under categories designed to broadly capture many aspects of fish biology, we hope to offer a useful guide for the non-specialist practitioner as they attempt to navigate the dizzying array of considerations and ongoing developments within this diverse toolkit.
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Affiliation(s)
- David M P Jacoby
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Institute of Zoology, Zoological Society of London, London, UK
| | - Adam T Piper
- Institute of Zoology, Zoological Society of London, London, UK
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De Wysiecki AM, Barnett A, Cortés F, Wiff R, Merlo PJ, Jaureguizar AJ, Awruch CA, Trobbiani GA, Irigoyen AJ. The essential habitat role of a unique coastal inlet for a widely distributed apex predator. R Soc Open Sci 2023; 10:230667. [PMID: 37830021 PMCID: PMC10565395 DOI: 10.1098/rsos.230667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/18/2023] [Indexed: 10/14/2023]
Abstract
Essential habitats support specific functions for species, such as reproduction, feeding or refuge. For highly mobile aquatic species, identifying essential habitats within the wider distribution range is central to understanding species ecology, and underpinning effective management plans. This study examined the movement and space use patterns of sevengill sharks (Notorynchus cepedianus) in Caleta Valdés (CV), a unique coastal habitat in northern Patagonia, Argentina. Seasonal residency patterns of sharks were evident, with higher detectability in late spring and early summer and lower during autumn and winter. The overlap between the residency patterns of sharks and their prey, elephant seals, suggests that CV functions as a seasonal feeding aggregation site for N. cepedianus. The study also found sexual differences in movement behaviour, with males performing abrupt departures from CV and showing increased roaming with the presence of more sharks, and maximum detection probability at high tide. These movements could be related to different feeding strategies between sexes or mate-searching behaviour, suggesting that CV may also be essential for reproduction. Overall, this study highlights the importance of coastal sites as essential habitats for N. cepedianus and deepens our understanding of the ecological role of this apex predator in marine ecosystems.
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Affiliation(s)
- Agustín M. De Wysiecki
- Centro para el Estudio de Sistemas Marinos, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Puerto Madryn, Chubut, Argentina
| | - Adam Barnett
- Marine Data Technology Hub, James Cook University, Townsville, Queensland, Australia
- Biopixel Oceans Foundation, Cairns, Queensland, Australia
| | - Federico Cortés
- Instituto Nacional de Investigación y Desarrollo Pesquero, Mar del Plata, Buenos Aires, Argentina
| | - Rodrigo Wiff
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
- Instituto Milenio en Socio-Ecología Costera (SECOS), Santiago, Chile
| | - Pablo J. Merlo
- Centro para el Estudio de Sistemas Marinos, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Puerto Madryn, Chubut, Argentina
| | - Andrés J. Jaureguizar
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), La Plata, Buenos Aires, Argentina
- Instituto Argentino de Oceanografía (IADO), Bahía Blanca, Buenos Aires, Argentina
- Universidad Provincial del Sudoeste (UPSO), Coronel Pringles, Buenos Aires, Argentina
| | - Cynthia A. Awruch
- Centro para el Estudio de Sistemas Marinos, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Puerto Madryn, Chubut, Argentina
- Fisheries and Aquaculture, Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, Hobart, Tasmania, Australia
| | - Gastón A. Trobbiani
- Centro para el Estudio de Sistemas Marinos, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Puerto Madryn, Chubut, Argentina
| | - Alejo J. Irigoyen
- Centro para el Estudio de Sistemas Marinos, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Puerto Madryn, Chubut, Argentina
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Whitney JL, Coleman RR, Deakos MH. Genomic evidence indicates small island-resident populations and sex-biased behaviors of Hawaiian reef Manta Rays. BMC Ecol Evol 2023; 23:31. [PMID: 37422622 PMCID: PMC10329317 DOI: 10.1186/s12862-023-02130-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 06/07/2023] [Indexed: 07/10/2023] Open
Abstract
BACKGROUND Reef manta rays (Mobula alfredi) are globally distributed in tropical and subtropical seas. Their life history traits (slow growth, late maturity, low reproductive output) make them vulnerable to perturbations and therefore require informed management strategies. Previous studies have reported wide-spread genetic connectivity along continental shelves suggesting high gene flow along continuous habitats spanning hundreds of kilometers. However, in the Hawaiian Islands, tagging and photo-identification evidence suggest island populations are isolated despite proximity, a hypothesis that has not yet been evaluated with genetic data. RESULTS This island-resident hypothesis was tested by analyzing whole mitogenome haplotypes and 2048 nuclear single nucleotide polymorphisms (SNPs) between M. alfredi (n = 38) on Hawai'i Island and Maui Nui (the 4-island complex of Maui, Moloka'i, Lāna'i and Kaho'olawe). Strong divergence in the mitogenome (ΦST = 0.488) relative to nuclear genome-wide SNPs (neutral FST = 0.003; outlier FST = 0.186), and clustering of mitochondrial haplotypes among islands provides robust evidence that female reef manta rays are strongly philopatric and do not migrate between these two island groups. Combined with restricted male-mediated migration, equivalent to a single male moving between islands every 2.2 generations (~ 64 years), we provide evidence these populations are significantly demographically isolated. Estimates of contemporary effective population size (Ne) are 104 (95% CI: 99-110) in Hawai'i Island and 129 (95% CI: 122-136) in Maui Nui. CONCLUSIONS Concordant with evidence from photo identification and tagging studies, these genetic results indicate reef manta rays in Hawai'i have small, genetically-isolated resident island populations. We hypothesize that due to the Island Mass Effect, large islands provide sufficient resources to support resident populations, thereby making crossing deep channels separating island groups unnecessary. Small effective population size, low genetic diversity, and k-selected life history traits make these isolated populations vulnerable to region-specific anthropogenic threats, which include entanglement, boat strikes, and habitat degradation. The long-term persistence of reef manta rays in the Hawaiian Islands will require island-specific management strategies.
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Affiliation(s)
- Jonathan L Whitney
- National Oceanic and Atmospheric Administration, Pacific Islands Fisheries Science Center, Honolulu, Hawai'i, USA.
| | - Richard R Coleman
- Department of Marine Biology and Ecology, Rosenstiel School of Marine, Atmospheric, and Earth Sciences, University of Miami, Miami, FL, USA
| | - Mark H Deakos
- Hawai'i Association for Marine Education and Research, Lahaina, Maui, Hawai'i, USA
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Hellström G, Lennox RJ, Bertram MG, Brodin T. Acoustic telemetry. Curr Biol 2022; 32:R863-R865. [PMID: 35998590 DOI: 10.1016/j.cub.2022.05.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
Gustv Hellström and colleagues introduce acoustic telemetry used to track movements and behaviors of aquatic animals.
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Affiliation(s)
- Gustav Hellström
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden.
| | - Robert J Lennox
- Laboratory for Freshwater Ecology and Inland Fisheries (LFI) at NORCE Norwegian Research Centre, Bergen, Norway
| | - Michael G Bertram
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Tomas Brodin
- Department of Wildlife, Fish, and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
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Rohner CA, Venables SK, Cochran JEM, Prebble CEM, Kuguru BL, Berumen ML, Pierce SJ. The need for long-term population monitoring of the world’s largest fish. ENDANGER SPECIES RES 2022. [DOI: 10.3354/esr01177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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8
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Matley JK, Klinard NV, Barbosa Martins AP, Aarestrup K, Aspillaga E, Cooke SJ, Cowley PD, Heupel MR, Lowe CG, Lowerre-Barbieri SK, Mitamura H, Moore JS, Simpfendorfer CA, Stokesbury MJW, Taylor MD, Thorstad EB, Vandergoot CS, Fisk AT. Global trends in aquatic animal tracking with acoustic telemetry. Trends Ecol Evol 2021; 37:79-94. [PMID: 34563403 DOI: 10.1016/j.tree.2021.09.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/27/2021] [Accepted: 09/01/2021] [Indexed: 11/28/2022]
Abstract
Acoustic telemetry (AT) is a rapidly evolving technique used to track the movements of aquatic animals. As the capacity of AT research expands it is important to optimize its relevance to management while still pursuing key ecological questions. A global review of AT literature revealed region-specific research priorities underscoring the breadth of how AT is applied, but collectively demonstrated a lack of management-driven objectives, particularly relating to fisheries, climate change, and protection of species. In addition to the need for more research with direct pertinence to management, AT research should prioritize ongoing efforts to create collaborative opportunities, establish long-term and ecosystem-based monitoring, and utilize technological advancements to bolster aquatic policy and ecological understanding worldwide.
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Affiliation(s)
- Jordan K Matley
- Great Lakes Institute for Environmental Research (GLIER), University of Windsor, Windsor, ON N8N 4P3, Canada.
| | - Natalie V Klinard
- Department of Biology, Dalhousie University, Halifax, NS B3H 4R2, Canada.
| | | | - Kim Aarestrup
- National Institute of Aquatic Resources, Technical University of Denmark, Silkeborg, 8600, Denmark
| | - Eneko Aspillaga
- Instituto Mediterráneo de Estudios Avanzados (IMEDEA, CSIC-UIB), Esporles, Balearic Islands 07190, Spain
| | - Steven J Cooke
- Department of Biology, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - Paul D Cowley
- South African Institute for Aquatic Biodiversity, Makhanda, 6140, South Africa
| | - Michelle R Heupel
- Integrated Marine Observing System (IMOS), University of Tasmania, Hobart, TAS 7001, Australia
| | - Christopher G Lowe
- Department of Biological Sciences, California State University Long Beach, Long Beach, CA 90840, USA
| | - Susan K Lowerre-Barbieri
- Fisheries and Aquatic Science Program, School of Forest Resources and Conservation, University of Florida, Gainesville, FL 32611, USA; Florida Fish and Wildlife Conservation Commission, Florida Fish and Wildlife Research Institute, St Petersburg, FL 33701, USA
| | - Hiromichi Mitamura
- Field Science Education and Research Center, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | | | - Colin A Simpfendorfer
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | | | - Matthew D Taylor
- Port Stephens Fisheries Institute, New South Wales Department of Primary Industries, Nelson Bay, NSW 2315, Australia
| | - Eva B Thorstad
- Norwegian Institute for Nature Research, Torgarden, Trondheim NO-7485, Norway
| | - Christopher S Vandergoot
- Great Lakes Acoustic Telemetry Observation System (GLATOS), Michigan State University, East Lansing, MI 48824, USA
| | - Aaron T Fisk
- Great Lakes Institute for Environmental Research (GLIER), University of Windsor, Windsor, ON N8N 4P3, Canada
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Schorr RA, Siemers JL. Population dynamics of little brown bats ( Myotis lucifugus) at summer roosts: Apparent survival, fidelity, abundance, and the influence of winter conditions. Ecol Evol 2021; 11:7427-7438. [PMID: 34188824 PMCID: PMC8216974 DOI: 10.1002/ece3.7573] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/24/2021] [Accepted: 03/29/2021] [Indexed: 11/06/2022] Open
Abstract
White-nose syndrome (WNS) has caused the death of millions of bats, but the impacts have been more difficult to identify in western North America. Understanding how WNS, or other threats, impacts western bats may require monitoring other roosts, such as maternity roosts and night roosts, where bats aggregate in large numbers.Little brown bats (Myotis lucifugus) are experiencing some of the greatest declines from WNS. Estimating survival and understanding population dynamics can provide valuable data for assessing population declines and informing conservation efforts.We conducted a 5-year mark-recapture study of two M. lucifugus roosts in Colorado. We used the robust design model to estimate apparent survival, fidelity, and abundance to understand population dynamics, and environmental covariates to understand how summer and winter weather conditions impact adult female survival. We compared the fidelity and capture probability of M. lucifugus between colonies to understand how bats use such roosts.Overwinter survival increased with the number of days with temperatures below freezing (β > 0.100, SE = 0.003) and decreased with the number of days with snow cover (β < -0.40, SE < 0.13). Adult female fidelity was higher at one maternity roost than the other. Overwinter and oversummer adult female survival was high (>0.90), and based on survival estimates and fungal-swabbing results, we believe these populations have yet to experience WNS.Recapture of M. lucifugus using antennas that continuously read passive integrated transponder tags allows rigorous estimation of bat population parameters that can elucidate trends in abundance and changes in survival. Monitoring populations at summer roosts can provide unique population ecology data that monitoring hibernacula alone may not. Because few adult males are captured at maternity colonies, and juvenile males have low fidelity, additional effort should focus on understanding male M. lucifugus population dynamics.
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Affiliation(s)
- Robert A. Schorr
- Colorado Natural Heritage ProgramColorado State UniversityFort CollinsCOUSA
| | - Jeremy L. Siemers
- Colorado Natural Heritage ProgramColorado State UniversityFort CollinsCOUSA
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Klinard NV, Matley JK, Ivanova SV, Larocque SM, Fisk AT, Johnson TB. Application of machine learning to identify predators of stocked fish in Lake Ontario: using acoustic telemetry predation tags to inform management. J Fish Biol 2021; 98:237-250. [PMID: 33015862 DOI: 10.1111/jfb.14574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/30/2020] [Accepted: 10/01/2020] [Indexed: 06/11/2023]
Abstract
Understanding predator-prey interactions and food web dynamics is important for ecosystem-based management in aquatic environments, as they experience increasing rates of human-induced changes, such as the addition and removal of fishes. To quantify the post-stocking survival and predation of a prey fish in Lake Ontario, 48 bloater Coregonus hoyi were tagged with acoustic telemetry predation tags and were tracked on an array of 105 acoustic receivers from November 2018 to June 2019. Putative predators of tagged bloater were identified by comparing movement patterns of six species of salmonids (i.e., predators) in Lake Ontario with the post-predated movements of bloater (i.e., prey) using a random forests algorithm, a type of supervised machine learning. A total of 25 bloater (53% of all detected) were consumed by predators on average (± S.D.) 3.1 ± 2.1 days after release. Post-predation detections of predators occurred for an average (± S.D.) of 78.9 ± 76.9 days, providing sufficient detection data to classify movement patterns. Tagged lake trout Salvelinus namaycush provided the most reliable classification from behavioural predictor variables (89% success rate) and was identified as the main consumer of bloater (consumed 50%). Movement networks between predicted and tagged lake trout were significantly correlated over a 6 month period, supporting the classification of lake trout as a common bloater predator. This study demonstrated the ability of supervised learning techniques to provide greater insight into the fate of stocked fishes and predator-prey dynamics, and this technique is widely applicable to inform future stocking and other management efforts.
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Affiliation(s)
- Natalie V Klinard
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Ontario, Canada
| | - Jordan K Matley
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Ontario, Canada
| | - Silviya V Ivanova
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Ontario, Canada
| | - Sarah M Larocque
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Ontario, Canada
| | - Aaron T Fisk
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Ontario, Canada
| | - Timothy B Johnson
- Ontario Ministry of Natural Resources and Forestry, Glenora Fisheries Station, Picton, Ontario, Canada
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11
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Lewis R, Dawson S, Rayment W. Estimating population parameters of broadnose sevengill sharks (Notorynchus cepedianus) using photo identification capture-recapture. J Fish Biol 2020; 97:987-995. [PMID: 32621516 DOI: 10.1111/jfb.14453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
The broadnose sevengill shark (Notorynchus cepedianus) is a common high trophic-level predator around coastal New Zealand. Data on the ecology of the species in New Zealand are severely lacking, and anthropogenic impacts are unquantified. To partially address this, the authors undertook a study of the demographics of a population at Stewart Island. Sampling trips were carried out seasonally from winter 2016 to spring 2017. A baited underwater video system (BUV) was deployed on 133 occasions (mean = 22.2 deployments per season) in a shallow coastal embayment to capture underwater video of N. cepedianus for photo identification of individuals. N. cepedianus was detected on all but one deployment. Images extracted from video recorded the presence of 149 different individuals. Capture-recapture analysis of these data using robust design methods indicated a seasonal trend in abundance of the population using the study area, ranging from 34 (95% C.I. = 21-55) during winter 2016, to 94 (95% C.I. = 44-199) during spring 2017. This study presents the first data on demographic parameters of N. cepedianus in New Zealand.
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Affiliation(s)
- Robert Lewis
- Department of Marine Science, University of Otago, Dunedin, New Zealand
| | - Steve Dawson
- Department of Marine Science, University of Otago, Dunedin, New Zealand
| | - William Rayment
- Department of Marine Science, University of Otago, Dunedin, New Zealand
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Longden EG, Elwen SH, McGovern B, James BS, Embling CB, Gridley T. Mark–recapture of individually distinctive calls—a case study with signature whistles of bottlenose dolphins ( Tursiops truncatus). J Mammal 2020. [DOI: 10.1093/jmammal/gyaa081] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Robust abundance estimates of wild animal populations are needed to inform management policies and are often obtained through mark–recapture (MR) studies. Visual methods are commonly used, which limits data collection to daylight hours and good weather conditions. Passive acoustic monitoring offers an alternative, particularly if acoustic cues are naturally produced and individually distinctive. Here we investigate the potential of using individually distinctive signature whistles in a MR framework and evaluate different components of study design. We analyzed signature whistles of common bottlenose dolphins, Tursiops truncatus, using data collected from static acoustic monitoring devices deployed in Walvis Bay, Namibia. Signature whistle types (SWTs) were identified using a bout analysis approach (SIGnature IDentification [SIGID]—Janik et al. 2013). We investigated spatial variation in capture by comparing 21 synchronized recording days across four sites, and temporal variation from 125 recording days at one high-use site (Aphrodite Beach). Despite dolphin vocalizations (i.e., echolocation clicks) being detected at each site, SWTs were not detected at all sites and there was high variability in capture rates among sites where SWTs were detected (range 0–21 SWTs detected). At Aphrodite Beach, 53 SWTs were captured over 6 months and discovery curves showed an initial increase in newly detected SWTs, approaching asymptote during the fourth month. A Huggins closed capture model constructed from SWT capture histories at Aphrodite Beach estimated a population of 54–68 individuals from acoustic detection, which overlaps with the known population size (54–76 individuals—Elwen et al. 2019). This study demonstrates the potential power of using signature whistles as proxies for individual occurrence and in MR abundance estimation, but also highlights challenges in using this approach.
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Affiliation(s)
- Emma G Longden
- Sea Search Research and Conservation - Namibian Dolphin Project, Muizenberg, Cape Town, South Africa
- Marine Vertebrate Research Group, School of Biological and Marine Sciences, University of Plymouth, Plymouth, United Kingdom
| | - Simon H Elwen
- Sea Search Research and Conservation - Namibian Dolphin Project, Muizenberg, Cape Town, South Africa
- Department of Botany and Zoology, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
| | - Barry McGovern
- Sea Search Research and Conservation - Namibian Dolphin Project, Muizenberg, Cape Town, South Africa
- Cetacean Ecology and Acoustics Laboratory, University of Queensland, Dunwich, QLD, Australia
| | - Bridget S James
- Sea Search Research and Conservation - Namibian Dolphin Project, Muizenberg, Cape Town, South Africa
- Department of Botany and Zoology, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
| | - Clare B Embling
- Marine Vertebrate Research Group, School of Biological and Marine Sciences, University of Plymouth, Plymouth, United Kingdom
| | - Tess Gridley
- Sea Search Research and Conservation - Namibian Dolphin Project, Muizenberg, Cape Town, South Africa
- Department of Botany and Zoology, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
- Statistics in Ecology, Environment and Conservation (SEEC), Department of Statistical Sciences, University of Cape Town, Rondebosch, Cape Town, South Africa
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13
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Harju SM, Cambrin SM, Averill‐Murray RC, Nafus M, Field KJ, Allison LJ. Using incidental mark-encounter data to improve survival estimation. Ecol Evol 2020; 10:360-370. [PMID: 31988732 PMCID: PMC6972812 DOI: 10.1002/ece3.5900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 11/08/2019] [Accepted: 11/15/2019] [Indexed: 11/22/2022] Open
Abstract
Obtaining robust survival estimates is critical, but sample size limitations often result in imprecise estimates or the failure to obtain estimates for population subgroups. Concurrently, data are often recorded on incidental reencounters of marked individuals, but these incidental data are often unused in survival analyses.We evaluated the utility of supplementing a traditional survival dataset with incidental data on marked individuals that were collected ad hoc. We used a continuous time-to-event exponential survival model to leverage the matching information contained in both datasets and assessed differences in survival among adult and juvenile and resident and translocated Mojave desert tortoises (Gopherus agassizii).Incorporation of the incidental mark-encounter data improved precision of all annual survival point estimates, with a 3.4%-37.5% reduction in the spread of the 95% Bayesian credible intervals. We were able to estimate annual survival for three subgroup combinations that were previously inestimable. Point estimates between the radiotelemetry and combined datasets were within |0.029| percentage points of each other, suggesting minimal to no bias induced by the incidental data.Annual survival rates were high (>0.89) for resident adult and juvenile tortoises in both study sites and for translocated adults in the southern site. Annual survival rates for translocated juveniles at both sites and translocated adults in the northern site were between 0.73 and 0.76. At both sites, translocated adults and juveniles had significantly lower survival than resident adults. High mortality in the northern site was driven primarily by a single pulse in mortalities.Using exponential survival models to leverage matching information across traditional survival studies and incidental data on marked individuals may serve as a useful tool to improve the precision and estimability of survival rates. This can improve the efficacy of understanding basic population ecology and population monitoring for imperiled species.
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Affiliation(s)
| | | | | | - Melia Nafus
- San Diego Zoo GlobalInstitute for Conservation ResearchEscondidoCAUSA
- Present address:
U.S. Geological SurveyFort Collins Science CenterFort CollinsCOUSA
| | | | - Linda J. Allison
- U.S. Fish and Wildlife ServiceDesert Tortoise Recovery OfficeRenoNVUSA
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Whoriskey K, Martins EG, Auger‐Méthé M, Gutowsky LFG, Lennox RJ, Cooke SJ, Power M, Mills Flemming J. Current and emerging statistical techniques for aquatic telemetry data: A guide to analysing spatially discrete animal detections. Methods Ecol Evol 2019. [DOI: 10.1111/2041-210x.13188] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Kim Whoriskey
- Department of Mathematics and Statistics Dalhousie University Halifax Nova Scotia Canada
| | - Eduardo G. Martins
- Ecosystem Science and Management Program University of Northern British Columbia Prince George British Columbia Canada
| | - Marie Auger‐Méthé
- Department of Statistics University of British Columbia Vancouver British Columbia Canada
- Institute for the Oceans and Fisheries University of British Columbia Vancouver British Columbia Canada
| | - Lee F. G. Gutowsky
- Fish Ecology and Conservation Physiology LaboratoryDepartment of Biology Carleton University Ottawa Ontario Canada
- Aquatic Resource and Monitoring Section Ontario Ministry of Natural Resources and Forestry Peterborough Ontario Canada
| | - Robert J. Lennox
- Fish Ecology and Conservation Physiology LaboratoryDepartment of Biology Carleton University Ottawa Ontario Canada
- Laboratory for Freshwater Ecology and Inland Fisheries NORCE Norwegian Research Centre Bergen Norway
| | - Steven J. Cooke
- Fish Ecology and Conservation Physiology LaboratoryDepartment of Biology Carleton University Ottawa Ontario Canada
| | - Michael Power
- Department of Biology University of Waterloo Waterloo Ontario Canada
| | - Joanna Mills Flemming
- Department of Mathematics and Statistics Dalhousie University Halifax Nova Scotia Canada
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15
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Barnett A, Braccini M, Dudgeon CL, Payne NL, Abrantes KG, Sheaves M, Snelling EP. The utility of bioenergetics modelling in quantifying predation rates of marine apex predators: Ecological and fisheries implications. Sci Rep 2017; 7:12982. [PMID: 29021551 DOI: 10.1038/s41598-017-13388-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 09/22/2017] [Indexed: 11/08/2022] Open
Abstract
Predators play a crucial role in the structure and function of ecosystems. However, the magnitude of this role is often unclear, particularly for large marine predators, as predation rates are difficult to measure directly. If relevant biotic and abiotic parameters can be obtained, then bioenergetics modelling offers an alternative approach to estimating predation rates, and can provide new insights into ecological processes. We integrate demographic and ecological data for a marine apex predator, the broadnose sevengill shark Notorynchus cepedianus, with energetics data from the literature, to construct a bioenergetics model to quantify predation rates on key fisheries species in Norfolk Bay, Australia. We account for the uncertainty in model parameters by incorporating parameter confidence through Monte Carlo simulations and running alternative variants of the model. Model and parameter variants provide alternative estimates of predation rates. Our simplest model estimates that ca. 1130 ± 137 N. cepedianus individuals consume 11,379 (95% CI: 11,111-11,648) gummy sharks Mustelus antarcticus (~21 tonnes) over a 36-week period in Norfolk Bay, which represents a considerable contribution to total predation mortality on this key fishery species. This study demonstrates how the integration of ecology and fisheries science can provide information for ecosystem and fisheries management.
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Rożyński M, Kapusta A, Demska-Zakęś K, Hopko M, Sikora A, Zakęś Z. The effects of surgically implanted dummy tags on the survival, growth performance, and physiology of pikeperch (Sander lucioperca). Fish Physiol Biochem 2017; 43:999-1010. [PMID: 28160132 PMCID: PMC5519655 DOI: 10.1007/s10695-017-0347-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 01/12/2017] [Indexed: 05/26/2023]
Abstract
The aim of this work was to determine the impact of surgically implanted telemetry transmitters (TTs) on the growth, survival, hematological and biochemical indexes, and wound healing in juvenile pikeperch (Sander lucioperca) (body weight 60-90 g). Two incision suturing methods were used-silk sutures (experiment I-group ST) or tissue adhesive (experiment II-group GT). After tagging, the fish were held in a recirculating system for 35 days. No statistically significant differences were noted in the growth or condition indexes analyzed among the fish tagged with TT compared with those from the control groups (untagged). Substantial individual variability was noted, however, in the parameters examined in both the control and tagged groups. Among the hematological indexes, statistically significant differences were only noted in experiment I. Lower values of mean corpuscular volume and mean corpuscular hemoglobin were noted in group ST. Among the biochemical parameters, creatinine was statistically significantly threefold lower, magnesium and alkaline phosphatase (ALP) levels were lower, and ammonia levels were higher in group ST than in the control group. In experiment II, significant differences were only noted for ALP. Tissue adhesive was the superior and more effective method for closing the incision after TT implantation in juvenile pikeperch. This type of suturing facilitated faster healing, and it had less of an impact on juvenile pikeperch welfare.
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Affiliation(s)
- Maciej Rożyński
- Department of Aquaculture, The Stanisław Sakowicz Inland Fisheries Institute, Oczapowskiego 10, 10-719, Olsztyn, Poland.
| | - Andrzej Kapusta
- Department of Hydrobiology, The Stanisław Sakowicz Inland Fisheries Institute, Oczapowskiego 10, 10-719, Olsztyn, Poland
| | - Krystyna Demska-Zakęś
- Department of Ichthyology, Faculty of Environmental Sciences, University of Warmia and Mazury, Oczapowskiego 5, 10-959, Olsztyn, Poland
| | - Marek Hopko
- Department of Aquaculture, The Stanisław Sakowicz Inland Fisheries Institute, Oczapowskiego 10, 10-719, Olsztyn, Poland
| | - Agnieszka Sikora
- Department of Ichthyology, Faculty of Environmental Sciences, University of Warmia and Mazury, Oczapowskiego 5, 10-959, Olsztyn, Poland
| | - Zdzisław Zakęś
- Department of Aquaculture, The Stanisław Sakowicz Inland Fisheries Institute, Oczapowskiego 10, 10-719, Olsztyn, Poland
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17
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Crossin GT, Heupel MR, Holbrook CM, Hussey NE, Lowerre-Barbieri SK, Nguyen VM, Raby GD, Cooke SJ. Acoustic telemetry and fisheries management. Ecol Appl 2017; 27:1031-1049. [PMID: 28295789 DOI: 10.1002/eap.1533] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 11/24/2016] [Accepted: 02/06/2017] [Indexed: 05/26/2023]
Abstract
This paper reviews the use of acoustic telemetry as a tool for addressing issues in fisheries management, and serves as the lead to the special Feature Issue of Ecological Applications titled Acoustic Telemetry and Fisheries Management. Specifically, we provide an overview of the ways in which acoustic telemetry can be used to inform issues central to the ecology, conservation, and management of exploited and/or imperiled fish species. Despite great strides in this area in recent years, there are comparatively few examples where data have been applied directly to influence fisheries management and policy. We review the literature on this issue, identify the strengths and weaknesses of work done to date, and highlight knowledge gaps and difficulties in applying empirical fish telemetry studies to fisheries policy and practice. We then highlight the key areas of management and policy addressed, as well as the challenges that needed to be overcome to do this. We conclude with a set of recommendations about how researchers can, in consultation with stock assessment scientists and managers, formulate testable scientific questions to address and design future studies to generate data that can be used in a meaningful way by fisheries management and conservation practitioners. We also urge the involvement of relevant stakeholders (managers, fishers, conservation societies, etc.) early on in the process (i.e., in the co-creation of research projects), so that all priority questions and issues can be addressed effectively.
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Affiliation(s)
- Glenn T Crossin
- Department of Biology, Dalhousie University, 1355 Oxford Street, Halifax, Nova Scotia, B4H 4R2, Canada
| | - Michelle R Heupel
- Australian Institute of Marine Science, PMB 3, Townsville, Queensland, 4810, Australia
| | - Christopher M Holbrook
- U.S. Geological Survey, Great Lakes Science Center, Hammond Bay Biological Station, 11188 Ray Road, Millersburg, Michigan, 49759, USA
| | - Nigel E Hussey
- Department of Biology, University of Windsor, 401 Sunset Avenue, Windsor, Ontario, N9B 3P4, Canada
| | - Susan K Lowerre-Barbieri
- Florida Fish & Wildlife Research Institute, 100 8th Avenue SE, St. Petersburg, Florida, 33701, USA
- Fisheries and Aquatic Science Program, School of Forest Resources and Conservation, University of Florida, 7922 North West 71st Street, Gainesville, Florida, 32653, USA
| | - Vivian M Nguyen
- Fish Ecology & Conservation Physiology Laboratory, Department of Biology and Institute of Environmental Science, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
| | - Graham D Raby
- Department of Biology, University of Windsor, 401 Sunset Avenue, Windsor, Ontario, N9B 3P4, Canada
| | - Steven J Cooke
- Fish Ecology & Conservation Physiology Laboratory, Department of Biology and Institute of Environmental Science, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, K1S 5B6, Canada
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18
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Huveneers C, Simpfendorfer CA, Kim S, Semmens JM, Hobday AJ, Pederson H, Stieglitz T, Vallee R, Webber D, Heupel MR, Peddemors V, Harcourt RG. The influence of environmental parameters on the performance and detection range of acoustic receivers. Methods Ecol Evol 2016. [DOI: 10.1111/2041-210x.12520] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Charlie Huveneers
- School of Biological Sciences Flinders University Bedford Park Adelaide SA 5042 Australia
| | - Colin A. Simpfendorfer
- Centre for Sustainable Tropical Fisheries and Aquaculture College of Marine and Environmental Sciences James Cook University Townsville Qld 4811 Australia
| | - Susan Kim
- Flinders Centre for Epidemiology and Biostatistics Flinders University Bedford Park Adelaide SA 5042 Australia
| | - Jayson M. Semmens
- Institute for Marine and Antarctic Studies University of Tasmania Taroona Hobart Tas. 7053 Australia
| | | | - Hugh Pederson
- Vemco, a Division of AMIRIX Systems Inc Bedford NS B4B 0L9 Canada
| | - Thomas Stieglitz
- College of Science, Technology & Engineering Centre for Tropical Water and Aquatic Ecosystem Research James Cook University Townsville Qld 4811 Australia
| | - Richard Vallee
- Vemco, a Division of AMIRIX Systems Inc Bedford NS B4B 0L9 Canada
| | - Dale Webber
- Vemco, a Division of AMIRIX Systems Inc Bedford NS B4B 0L9 Canada
| | | | | | - Robert G. Harcourt
- Department of Biological Sciences Macquarie University Sydney NSW 2109 Australia
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