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Davis RP, Simmons LM, Shaw SL, Sass GG, Sard NM, Isermann DA, Larson WA, Homola JJ. Demographic patterns of walleye ( Sander vitreus) reproductive success in a Wisconsin population. Evol Appl 2024; 17:e13665. [PMID: 38468712 PMCID: PMC10925830 DOI: 10.1111/eva.13665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/21/2023] [Accepted: 01/17/2024] [Indexed: 03/13/2024] Open
Abstract
Harvest in walleye Sander vitreus fisheries is size-selective and could influence phenotypic traits of spawners; however, contributions of individual spawners to recruitment are unknown. We used parentage analyses using single nucleotide polymorphisms to test whether parental traits were related to the probability of offspring survival in Escanaba Lake, Wisconsin. From 2017 to 2020, 1339 adults and 1138 juveniles were genotyped and 66% of the offspring were assigned to at least one parent. Logistic regression indicated the probability of reproductive success (survival of age-0 to first fall) was positively (but weakly) related to total length and growth rate in females, but not age. No traits analyzed were related to reproductive success for males. Our analysis identified the model with the predictors' growth rate and year for females and the models with year and age and year for males as the most likely models to explain variation in reproductive success. Our findings indicate that interannual variation (i.e., environmental conditions) likely plays a key role in determining the probability of reproductive success in this population and provide limited support that female age, length, and growth rate influence recruitment.
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Affiliation(s)
- Robert P. Davis
- Wisconsin Cooperative Fishery Research UnitUniversity of Wisconsin‐Stevens PointStevens PointWisconsinUSA
| | - Levi M. Simmons
- Wisconsin Cooperative Fishery Research UnitUniversity of Wisconsin‐Stevens PointStevens PointWisconsinUSA
| | - Stephanie L. Shaw
- Office of Applied Science, Wisconsin Department of Natural ResourcesEscanaba Lake Research StationBoulder JunctionWisconsinUSA
| | - Greg G. Sass
- Office of Applied Science, Wisconsin Department of Natural ResourcesEscanaba Lake Research StationBoulder JunctionWisconsinUSA
| | - Nicholas M. Sard
- Department of Biological SciencesState University of New York‐OswegoOswegoNew YorkUSA
| | - Daniel A. Isermann
- U.S. Geological Survey, Wisconsin Cooperative Fishery Research UnitUniversity of Wisconsin‐Stevens PointStevens PointWisconsinUSA
| | - Wesley A. Larson
- National Marine Fisheries Service, Alaska Fisheries Science Center, Auke Bay LaboratoriesNational Oceanic and Atmospheric AdministrationJuneauAlaskaUSA
| | - Jared J. Homola
- U.S. Geological Survey, Wisconsin Cooperative Fishery Research UnitUniversity of Wisconsin‐Stevens PointStevens PointWisconsinUSA
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2
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Olsen EM, Karlsen Ø, Skjæraasen JE. Large females connect Atlantic cod spawning sites. Science 2023; 382:1181-1184. [PMID: 38060630 DOI: 10.1126/science.adi1826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 10/31/2023] [Indexed: 12/18/2023]
Abstract
The Earth's ecosystems are increasingly deprived of large animals. Global simulations suggest that this downsizing of nature has serious consequences for biosphere functioning. However, the historical loss of large animals means that it is now often impossible to secure empirical data revealing their true ecological importance. We tracked 465 mature Atlantic cod (Gadus morhua) during their winter spawning season and show that large females (up to 114 centimeters in length), which are still found in mid-Norway, were characterized by more complex movement networks compared with smaller females. Large males were sparse but displayed similar movement patterns. Our finding implies that management programs promoting large fish will have positive impacts on population resilience by facilitating the continued use of a diversity of spawning habitats and the connectivity between them.
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Affiliation(s)
- Esben Moland Olsen
- Institute of Marine Research; Flødevigen, Arendal 4817, Norway
- Centre for Coastal Research, Department of Natural Sciences, University of Agder; Kristiansand 4604, Norway
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3
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Harrison HB, Drane L, Berumen ML, Cresswell BJ, Evans RD, Galbraith GF, Srinivasan M, Taylor BM, Williamson DH, Jones GP. Ageing of juvenile coral grouper ( Plectropomus maculatus) reveals year-round spawning and recruitment: implications for seasonal closures. Proc Biol Sci 2023; 290:20230584. [PMID: 37339745 DOI: 10.1098/rspb.2023.0584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/30/2023] [Indexed: 06/22/2023] Open
Abstract
Temporal patterns in spawning and juvenile recruitment can have major effects on population size and the demographic structure of coral reef fishes. For harvested species, these patterns are crucial in determining stock size and optimizing management strategies such as seasonal closures. For the commercially important coral grouper (Plectropomus spp.) on the Great Barrier Reef, histological studies indicate peak spawning around the summer new moons. Here we examine the timing of spawning activity for P. maculatus in the southern Great Barrier Reef by deriving age in days for 761 juvenile fish collected between 2007 and 2022, and back-calculating settlement and spawning dates. Age-length relationships were used to estimate spawning and settlement times for a further 1002 juveniles collected over this period. Unexpectedly, our findings indicate year-round spawning activity generates distinct recruitment cohorts that span several weeks to months. Peak spawning varied between years with no clear association with environmental cues, and little to no alignment with existing seasonal fisheries closures around the new moon. Given the variability and uncertainty in peak spawning times, this fishery may benefit from additional and longer seasonal closures, or alternative fisheries management strategies, to maximize the recruitment contribution from periods of greatest reproductive success.
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Affiliation(s)
- H B Harrison
- School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
- Marine Biology and Aquaculture, College of Science & Engineering, James Cook University, Townsville 4811, Queensland, Australia
| | - L Drane
- Marine Biology and Aquaculture, College of Science & Engineering, James Cook University, Townsville 4811, Queensland, Australia
| | - M L Berumen
- Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955, Saudi Arabia
| | - B J Cresswell
- Marine Biology and Aquaculture, College of Science & Engineering, James Cook University, Townsville 4811, Queensland, Australia
- Commonwealth Scientific and Industrial Research Organisation, Townsville 4811, Queensland, Australia
| | - R D Evans
- Department of Biodiversity Conservation and Attractions, 17 Dick Perry Ave, Kensington 6151, Australia
- Oceans Institute, The University of Western Australia, Crawley, Western Australia 6009, Australia
| | - G F Galbraith
- Marine Biology and Aquaculture, College of Science & Engineering, James Cook University, Townsville 4811, Queensland, Australia
- Centre for Tropical Water and Aquatic Ecosystem Research (TropWATER), James Cook University, Townsville 4811, Queensland, Australia
| | - M Srinivasan
- Marine Biology and Aquaculture, College of Science & Engineering, James Cook University, Townsville 4811, Queensland, Australia
- Centre for Tropical Water and Aquatic Ecosystem Research (TropWATER), James Cook University, Townsville 4811, Queensland, Australia
| | - B M Taylor
- University of Guam Marine Laboratory and UOG Sea Grant, 303 University Drive, UOG Station, Mangilao, Guam 96923, USA
| | - D H Williamson
- Great Barrier Reef Marine Park Authority, Townsville 4810, Queensland, Australia
| | - G P Jones
- Marine Biology and Aquaculture, College of Science & Engineering, James Cook University, Townsville 4811, Queensland, Australia
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4
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Lu Y, Zhu WY, Liu QY, Li Y, Tian HW, Cheng BX, Zhang ZY, Wu ZH, Qing J, Sun G, Yan X. Impact of Low-Head Dam Removal on River Morphology and Habitat Suitability in Mountainous Rivers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11743. [PMID: 36142021 PMCID: PMC9517203 DOI: 10.3390/ijerph191811743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/06/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Dam removal is considered an effective measure to solve the adverse ecological effects caused by dam construction and has started to be considered in China. The sediment migration and habitat restoration of river ecosystems after dam removal have been extensively studied abroad but are still in the exploratory stage in China. However, there are few studies on the ecological response of fishes at different growth stages. Considering the different habitat preferences of Schizothorax prenanti (S. prenanti) in the spawning and juvenile periods, this study coupled field survey data and a two-dimensional hydrodynamic model to explore the changes in river morphology at different scales and the impact of changes in hydrodynamic conditions on fish habitat suitability in the short term. The results show that after the dam is removed, in the upstream of the dam, the riverbed is eroded and cut down and the riverbed material coarsens. With the increase in flow velocity and the decrease in flow area, the weighted usable area (WUA) in the spawning and juvenile periods decreases by 5.52% and 16.36%, respectively. In the downstream of the dam, the riverbed is markedly silted and the bottom material becomes fine. With the increase in water depth and flow velocity, the WUA increases by 79.91% in the spawning period and decreases by 67.90% in the juvenile period, which is conducive to adult fish spawning but not to juvenile fish growth. The changes in physical habitat structure over a short time period caused by dam removal have different effects on different fish development periods, which are not all positive. The restoration of stream continuity increases adult fish spawning potential while limiting juvenile growth. Thus, although fish can spawn successfully, self-recruitment of fish stocks can still be affected if juvenile fish do not grow successfully. This study provides a research basis for habitat assessment after dam removal and a new perspective for the subsequent adaptive management strategy of the project.
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Affiliation(s)
- Yun Lu
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
| | - Wan-Yi Zhu
- Chengdu Xingcheng Capital Management Co., Ltd., Chengdu 610000, China
| | - Qing-Yuan Liu
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
| | - Yong Li
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
| | - Hui-Wu Tian
- Yangtze River Fisheries Research Institute of Chinese Academy of Fisheries Science, Wuhan 430223, China
| | - Bi-Xin Cheng
- Shanghai Investigation, Design and Research Institute Corporation Limited, Shanghai 200434, China
| | - Ze-Yu Zhang
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
| | - Zi-Han Wu
- State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
| | - Jie Qing
- Shanghai Investigation, Design and Research Institute Corporation Limited, Shanghai 200434, China
| | - Gan Sun
- China Three Gorges Construction (Group) Co., Ltd., Chengdu 610041, China
| | - Xin Yan
- Shanghai Investigation, Design and Research Institute Corporation Limited, Shanghai 200434, China
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Hamilton RJ, Lozano‐Cortés D, Bode M, Almany G, Harrison HB, Pita J, Saenz‐Agudelo P, Gereniu C, Waldie PA, Peterson N, Choat JH, Berumen ML. Larval dispersal and fishing pressure influence recruitment in a coral reef fishery. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.14027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Richard J. Hamilton
- The Nature Conservancy Asia Pacific Resource Centre South Brisbane Queensland Australia
- ARC Centre of Excellence for Coral Reef Studies James Cook University Townsville Queensland Australia
| | - Diego Lozano‐Cortés
- Division of Biological and Environmental Science and Engineering Red Sea Research Center King Abdullah University of Science and Technology Thuwal Saudi Arabia
| | - Michael Bode
- School of Mathematical Sciences Queensland University of Technology Brisbane Australia
| | - Glenn R. Almany
- Laboratoire d'Excellence “CORAIL” CRIOBE USR 3278, CNRS–EPHE–UPVD Perpignan Cedex France
| | - Hugo B. Harrison
- ARC Centre of Excellence for Coral Reef Studies James Cook University Townsville Queensland Australia
- Australian Institute of Marine Science Townsville Queensland Australia
| | - John Pita
- The Nature Conservancy Isabel Environmental Office Buala Solomon Islands
| | - Pablo Saenz‐Agudelo
- Instituto de Ciencias Ambientales y Evolutivas Facultad de Ciencias Universidad Austral de Chile Valdivia Chile
| | - Collin Gereniu
- Solomon Islands National University Honiara Solomon Islands
| | - Pete A. Waldie
- The Nature Conservancy Asia Pacific Resource Centre South Brisbane Queensland Australia
- ARC Centre of Excellence for Coral Reef Studies James Cook University Townsville Queensland Australia
| | - Nate Peterson
- The Nature Conservancy Asia Pacific Resource Centre South Brisbane Queensland Australia
| | - John Howard Choat
- College of Science and Engineering James Cook University Townsville Queensland Australia
| | - Michael L. Berumen
- Division of Biological and Environmental Science and Engineering Red Sea Research Center King Abdullah University of Science and Technology Thuwal Saudi Arabia
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6
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Lavin CP, Jones GP, Williamson DH, Harrison HB. Minimum size limits and the reproductive value of numerous, young, mature female fish. Proc Biol Sci 2021; 288:20202714. [PMID: 33715428 DOI: 10.1098/rspb.2020.2714] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Fisheries management relies on various catch and effort controls to preserve spawning stock biomass and maximize sustainable yields while limiting fishery impacts on marine ecosystems. These include species-specific minimum or maximum size limits to protect either small non-reproductive subadults, a portion of reproductively mature adults, or large highly fecund individuals. Protecting size classes of mature fish is expected to yield a viable source of larvae for replenishing populations and reduce the risk of recruitment overfishing, yet size-specific recruitment contributions have rarely been assessed empirically. Here, we apply genetic parentage analysis to measure the reproductive success of a size-structured population of a commercially important species of coral grouper (Plectropomus maculatus-Serranidae) in no-take marine reserves (NTMRs) in the Great Barrier Reef Marine Park, Australia. Although the per capita reproductive success of individual fish increases rapidly with body length, the numerous young mature female fish, below the minimum size limit (MSL) (38 cm total length), were responsible for generating disproportionately large contributions (36%) towards larval replenishment of both fished and reserve reefs. Our findings indicate that MSLs are an effective harvest control measure to safeguard a portion of the spawning stock biomass for coral grouper and supplement recruitment subsidies assured from NTMRs.
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Affiliation(s)
- Charles P Lavin
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Geoffrey P Jones
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia.,ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia
| | - David H Williamson
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Hugo B Harrison
- ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Queensland, Australia.,Australian Institute of Marine Science, Townsville, Queensland, Australia
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