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25 results for “freshwater management”
Data for: Size spectrum model reveals importance of considering species interactions in a freshwater fisheries management context
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Data from: Sustainability management of short-lived freshwater fish in human-altered ecosystems should focus on adult survival
<p>Fish populations globally are susceptible to endangerment through exploitation and habitat loss. We present theoretical simulations to explore how reduced adult survival (age truncation) might affect short-lived freshwater fish species in human-altered contemporary environments. Our simulations evaluate two hypothetical "average fish" and five example fish species of age 1 or age 2 maturity. From a population equilibrium baseline representing a natural, unaltered environment we impose systematic reductions in adult survival and quantify how age truncation affects the causes of variation in population growth rate. We estimate the relative contributions to population growth rate arising from simulated temporal variation in age-specific vital rates and population structure. At equilibrium and irrespective of example species, population structure (first adult age class) and survival probability of the first two adult age classes are the most important determinants of population growth. As adult survival decreases, the first reproductive age class becomes increasingly important to variation in population growth. All simulated examples show the same general pattern of change with age truncation as known for exploited, longer-lived fish species in marine and freshwater environments. This implies age truncation is a general potential concern for fish biodiversity across life history strategies and ecosystems. Managers of short-lived, freshwater fishes in contemporary environments often focus on supporting reproduction to ensure population persistence. However, a strong focus on water management to support reproduction may reduce adult survival. Sustainability management needs a focus on mitigating adult mortality in human-altered ecosystems. A watershed spatial extent embracing land and water uses may be necessary to identify and mitigate causes of age truncation in freshwater species. Achieving higher adult survival will require paradigm transformations in society and government about water management priorities.</p>
FIGURE 1 in A checklist of the freshwater ichthyofauna from El Petén and Alta Verapaz, Guatemala, with notes for its conservation and management
FIGURE 1. Historical collection localities and collectors from El Petén and Alta Verapaz, Guatemala. Allgayer, R. 1991, 2002; Kihn, P. H. A. 2001; Barrientos, C. C. 1999; Bussing, W. A. & Martin, M. 1975; Collete, B. B. 1974; Glaser, U., F. Schafer, & W. Glaser. 1996; Granados, D. P. 2001; Greenfield, D. W. & J. E. Thomerson. 1997; Grey, M. 1947; ⌧Günther, A. 1868; Hubbs, C. L. 1935, 1950; Meek, S. E. 1907; Miller, R. R. 1955, 1966, 1971, 1976, 1982, 1986; Molina, O. 2000; Meyer, M. K. & M. Schartl. 2002; Poeser, F. N. 2002; Surveys by the authors of this paper in 2001, 2002, 2003; Regan, C. T. 19061908; Rivas, R. L. 1962; Rosen, D. E. 1967, 1969 1970, 1972,1979; Theodorakis, C. & J. W. Bickhan. 2000; Willink, P. W. et al. 2000.
Data from: Sustainability management of short-lived freshwater fish in human-altered ecosystems should focus on adult survival
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Figure 2 in Current knowledge of New Caledonian marine and freshwater ichthyofauna, SW Pacific Ocean: diversity, exploitation, threats and management actions
Figure 2. – Location of fishing effort of the offshore fishing fleet in the New Caledonian EEZ in 2019 (Source: GVT-NC, 2021; modified by Léa Carron).
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.