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Nakai M, Masumoto T, Asaeda T, Rahman M. Improving the efficiency of adaptive management methods in multiple fishways using environmental DNA. PLoS One 2024; 19:e0301197. [PMID: 38557776 PMCID: PMC10984549 DOI: 10.1371/journal.pone.0301197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 03/12/2024] [Indexed: 04/04/2024] Open
Abstract
Dams and weirs impede the continuity of rivers and transit of migratory fish. To overcome this obstacle, fishways are installed worldwide; however, management after installation is important. The Miyanaka Intake Dam has three fish ladders with different flow velocities and discharges and has been under adaptive management since 2012. Fish catch surveys, conducted as an adaptive management strategy, place a heavy burden on fish. Furthermore, a large number of investigators must be mobilized during the 30-day investigation period. Thus, a monitoring method using environmental DNA that exerts no burden on fish and requires only a few surveyors (to obtain water samples) and an in-house analyst was devised; however, its implementation in a fishway away from the point of analysis and with limited flow space and its effective water sampling frequency have not been reported. Therefore, in 2019, we started a trial aiming to evaluate the methods and application conditions of environmental DNA surveys for the continuous and long-term monitoring of various fish fauna upstream and downstream of the Miyanaka Intake Dam. To evaluate the fish fauna, the results of an environmental DNA survey (metabarcoding method) for 2019 to 2022 were compared to those of a catch survey in the fishway from 2012 to 2022. The results confirmed the use of environmental DNA surveys in evaluating the contribution of fishways to biodiversity under certain conditions and introduced a novel method for sample collection.
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Affiliation(s)
- Masahiko Nakai
- Japan International Consultants for Transportation Co., Ltd, Tokyo, Japan
| | - Taku Masumoto
- Energy Planning Department, East Japan Railway Company, Tokyo, Japan
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Kirk MA, Wissinger SA. Assessment of Long-Term Trends in Fish Distributions at Multiple Scales Decreases Uncertainty Associated with Historical Datasets. ENVIRONMENTAL MANAGEMENT 2020; 66:136-148. [PMID: 32346770 DOI: 10.1007/s00267-020-01298-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 04/09/2020] [Indexed: 06/11/2023]
Abstract
Monitoring long-term changes in aquatic biodiversity requires the effective use of historical data that were collected with different methods and varying levels of effort. Aggregating data into different spatial scales can control for such differences and provide a robust framework for monitoring distribution trends. We used a quantitative, multi-scale assessment to evaluate the potential drivers of distribution change for 60 fish species at three spatial scales, using 503 unique sampling events conducted between 1931 and 2019 in a stream biodiversity hotspot (French Creek, Pennsylvania, U.S.A). Trends delineated at multiple scales demonstrated that only one cyprinid species consistently declined through time. In contrast, several species, particularly centrarchids (bass and sunfish), appeared to increase with time. However, evidence for species' increases varied among the different spatial scales, and our observations suggest that differences in effort and detection across time periods may contribute to patterns of species increases. There was agreement among scales that agricultural land use, non-native brown trout (Salmo trutta), and anthropogenic barriers did not explain patterns in biodiversity change from the distribution trends in this study. The lack of species declines is likely due to the limited levels of historical impacts in the watershed compared with other locations in the region that experienced more acute pollution bottlenecks. Species increases were most prevalent for sportfish and baitfish species, suggesting that distribution increases were human mediated. Similar multi-scale assessments should provide more robust insight into patterns of biodiversity loss and distribution changes by maximizing the use of historical data.
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Affiliation(s)
- Mark A Kirk
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, 82071, USA.
- Departments of Biology and Environmental Science and Sustainability, Allegheny College, Meadville, PA, 16335, USA.
| | - Scott A Wissinger
- Departments of Biology and Environmental Science and Sustainability, Allegheny College, Meadville, PA, 16335, USA
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Souza NFD, Baptista DF, Buss DF. A predictive index based on environmental filters for the bioassessment of river basins without reference areas in Atlantic Forest biome, Brazil. BIOTA NEOTROPICA 2019. [DOI: 10.1590/1676-0611-bn-2018-0601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract: Biological assessments that use the reference condition approach are based on the concept of comparing a site's observed biology to sites where disturbance is minimal or absent. However, in many regions of the world, such areas are scarce or nonexistent. In this study, an alternative approach proposed by Chessman and Royal for bioassessment without reference areas based on environmental filters was tested in Brazil. This approach assumes that key environmental features act in the selection of potential colonists, from a regional pool of taxa, based on the ecological traits (tolerances) possessed by each taxon. We developed the approach by: 1) determining the regional pool, based on a large Atlantic Forest biome database; 2) selecting environmental filters (elevation, original vegetation and soil type); and 3) including information on the tolerance and preferences of aquatic insects to these filters. With this information we were able to determine the expected taxon under natural conditions and compare with observed taxon, developing a predictive index (Observed/Expected). Although the model was intended to predict the fauna in regions without reference sites, we included reference areas to test the model responsiveness, precision and sensitivity. Our results indicated that the index was able to discriminate impairment classes (F=56.9; p<0,001), it has high precision due to low standard deviation across reference sites values (SD=0.098) and high sensitivity due the correlation with environmental variables that are sensitive to human alteration (r=0.74, p<0.01). Also, it was strongly correlated with multimetric indices developed for multiple watersheds in the state, showing agreement between the methods in relation to ecological quality classification. Even though the predictive index had performed well in our study, we make some considerations that may help to improve its sensitivity of similar methods that are being tested using the environmental filters approach.
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Barbarossa V, Huijbregts MAJ, Beusen AHW, Beck HE, King H, Schipper AM. FLO1K, global maps of mean, maximum and minimum annual streamflow at 1 km resolution from 1960 through 2015. Sci Data 2018; 5:180052. [PMID: 29583139 PMCID: PMC5870339 DOI: 10.1038/sdata.2018.52] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 02/08/2018] [Indexed: 11/18/2022] Open
Abstract
Streamflow data is highly relevant for a variety of socio-economic as well as ecological analyses or applications, but a high-resolution global streamflow dataset is yet lacking. We created FLO1K, a consistent streamflow dataset at a resolution of 30 arc seconds (~1 km) and global coverage. FLO1K comprises mean, maximum and minimum annual flow for each year in the period 1960–2015, provided as spatially continuous gridded layers. We mapped streamflow by means of artificial neural networks (ANNs) regression. An ensemble of ANNs were fitted on monthly streamflow observations from 6600 monitoring stations worldwide, i.e., minimum and maximum annual flows represent the lowest and highest mean monthly flows for a given year. As covariates we used the upstream-catchment physiography (area, surface slope, elevation) and year-specific climatic variables (precipitation, temperature, potential evapotranspiration, aridity index and seasonality indices). Confronting the maps with independent data indicated good agreement (R2 values up to 91%). FLO1K delivers essential data for freshwater ecology and water resources analyses at a global scale and yet high spatial resolution.
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Affiliation(s)
- Valerio Barbarossa
- Radboud University, Institute for Water and Wetland Research, Department of Environmental Science, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands
| | - Mark A J Huijbregts
- Radboud University, Institute for Water and Wetland Research, Department of Environmental Science, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands.,PBL Netherlands Environmental Assessment Agency, Department of Nature and Rural Areas, P.O. Box 30314, 2500 GH The Hague, The Netherlands
| | - Arthur H W Beusen
- PBL Netherlands Environmental Assessment Agency, Department of Information, Data and Methodology, P.O. Box 30314, 2500 GH The Hague, The Netherlands
| | - Hylke E Beck
- Princeton University, Department of Civil and Environmental Engineering, Princeton, New Jersey, USA
| | - Henry King
- Unilever R&D, Safety and Environmental Assurance Centre, Colworth Science Park, Sharnbrook, Bedfordshire MK44 1LQ, UK
| | - Aafke M Schipper
- Radboud University, Institute for Water and Wetland Research, Department of Environmental Science, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands.,PBL Netherlands Environmental Assessment Agency, Department of Nature and Rural Areas, P.O. Box 30314, 2500 GH The Hague, The Netherlands
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Jacobson PC, Hansen GJA, Bethke BJ, Cross TK. Disentangling the effects of a century of eutrophication and climate warming on freshwater lake fish assemblages. PLoS One 2017; 12:e0182667. [PMID: 28777816 PMCID: PMC5544199 DOI: 10.1371/journal.pone.0182667] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/13/2017] [Indexed: 11/18/2022] Open
Abstract
Eutrophication and climate warming are profoundly affecting fish in many freshwater lakes. Understanding the specific effects of these stressors is critical for development of effective adaptation and remediation strategies for conserving fish populations in a changing environment. Ecological niche models that incorporated the individual effects of nutrient concentration and climate were developed for 25 species of fish sampled in standard gillnet surveys from 1,577 Minnesota lakes. Lake phosphorus concentrations and climates were hindcasted to a pre-disturbance period of 1896–1925 using existing land use models and historical temperature data. Then historical fish assemblages were reconstructed using the ecological niche models. Substantial changes were noted when reconstructed fish assemblages were compared to those from the contemporary period (1981–2010). Disentangling the sometimes opposing, sometimes compounding, effects of eutrophication and climate warming was critical for understanding changes in fish assemblages. Reconstructed abundances of eutrophication-tolerant, warmwater taxa increased in prairie lakes that experienced significant eutrophication and climate warming. Eutrophication-intolerant, warmwater taxa abundance increased in forest lakes where primarily climate warming was the stressor. Coolwater fish declined in abundance in both ecoregions. Large changes in modeled abundance occurred when the effects of both climate and eutrophication operated in the same direction for some species. Conversely, the effects of climate warming and eutrophication operated in opposing directions for other species and dampened net changes in abundance. Quantifying the specific effects of climate and eutrophication will allow water resource managers to better understand how lakes have changed and provide expectations for sustainable fish assemblages in the future.
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Affiliation(s)
- Peter C. Jacobson
- Minnesota Department of Natural Resources, Park Rapids, Minnesota, United States of America
- * E-mail:
| | - Gretchen J. A. Hansen
- Minnesota Department of Natural Resources, St. Paul, Minnesota, United States of America
| | - Bethany J. Bethke
- Minnesota Department of Natural Resources, Duluth, Minnesota, United States of America
| | - Timothy K. Cross
- Minnesota Department of Natural Resources, Hutchinson, Minnesota, United States of America
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Lavarías S, Ocon C, van Oosterom VL, Laino A, Medesani DA, Fassiano A, Garda H, Donadelli J, de Molina MR, Capítulo AR. Multibiomarker responses in aquatic insect Belostoma elegans (Hemiptera) to organic pollution in freshwater system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:1322-1337. [PMID: 27771882 DOI: 10.1007/s11356-016-7493-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
The present study analyzes a battery of biomarkers in the water bug Belostoma elegans from a stream polluted with organic matter (OMS), and another one considered as reference site (RS) during spring-summer season (December to March). Biochemical parameters of glucidic, lipidic and oxidative metabolic pathways were analyzed in males and females of this insect. In general, no significant differences were observed in all biomarkers assayed between both sexes, except lactate concentration which was higher in males than in females (p < 0.0006) in the first three months. About carbohydrate metabolism parameters, only pyruvate-kinase showed significant differences between insects collected in both streams (p < 0.05) during December. However, the total lipid content, saturated fatty acid, and mainly triacylglycerol were higher in insects from RS compared to those from OMS (p < 0.002) in all sampled months. Levels of lipoperoxidation, protein oxidation, reduced glutathione and glutathione-S-transferase activity showed no differences between insects collected from both streams. Nevertheless, the significant increase observed in superoxide dismutase and catalase activities (p < 0.004) could be due to the elevated oxidative metabolism in insects from RS compared to those from OMS with lower dissolved oxygen. Regarding those responding parameters, males accounted for the differences between the two sites during the study period. In conclusion, our results support that lipidic energetic reserves and antioxidant enzyme activities in B. elegans could be used as biomarkers of environmental pollution by organic matter.
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Affiliation(s)
- S Lavarías
- Instituto de Limnología de La Plata (ILPLA) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP), Boulevard 120 y 62, 1900, La Plata, Argentina.
| | - C Ocon
- Instituto de Limnología de La Plata (ILPLA) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP), Boulevard 120 y 62, 1900, La Plata, Argentina
| | - V López van Oosterom
- Instituto de Limnología de La Plata (ILPLA) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP), Boulevard 120 y 62, 1900, La Plata, Argentina
| | - A Laino
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP), La Plata, Argentina
| | - D A Medesani
- IQUIBICEN Fac. Cs. Exactas y Naturales. Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - A Fassiano
- IQUIBICEN Fac. Cs. Exactas y Naturales. Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - H Garda
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP), La Plata, Argentina
| | - J Donadelli
- Instituto de Limnología de La Plata (ILPLA) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP), Boulevard 120 y 62, 1900, La Plata, Argentina
| | - M Ríos de Molina
- IQUIBICEN Fac. Cs. Exactas y Naturales. Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - A Rodrigues Capítulo
- Instituto de Limnología de La Plata (ILPLA) CONICET CCT La Plata-Universidad Nacional de La Plata (UNLP), Boulevard 120 y 62, 1900, La Plata, Argentina
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