Modelling and Management of Fish Populations with High and Low Fecundities

1981 ◽  
pp. 54-63 ◽  
Author(s):  
B. S. Goh
Keyword(s):  
Fish Populations

Genotoxic effects of urban pollution in the Iguaçu River on two fish populations

2021 ◽  
pp. 1-8
Author(s):  
Atsler Luana Lehun ◽  
Amanda Brixner Mendes ◽  
Ricardo Massato Takemoto ◽  
Ana Carolina de Deus Bueno Krawczyk
Keyword(s):  
Urban Pollution ◽  
Fish Populations ◽  
Genotoxic Effects ◽  
Iguaçu River

scholarly journals Predicted shifts of groundfish distribution in the Eastern Bering Sea under climate change, with implications for fish populations and fisheries management

2020 ◽  
Author(s):  
Christopher N Rooper ◽  
Ivonne Ortiz ◽  
Albert J Hermann ◽  
Ned Laman ◽  
Wei Cheng ◽  
...  
Keyword(s):  
Bering Sea ◽  
Marine Species ◽  
Species Distribution Modelling ◽  
Fish Populations ◽  
Trawl Survey ◽  
Climate Scenarios ◽  
Important Species ◽  
Eastern Bering Sea ◽  
Northern Latitudes ◽  
Distribution Shifts

Abstract Climate-related distribution shifts for marine species are, in general, amplified in northern latitudes. The objective of this study was to predict future distributions of commercially important species in the eastern Bering Sea under six climate scenarios, by incorporating predictions of future oceanographic conditions. We used species distribution modelling to determine potential distribution changes in four time periods (2013–2017, 2030–2039, 2060–2069, and 2090-2099) relative to 1982–2012 for 16 marine fish and invertebrates. Most species were predicted to have significant shifts in the centre of gravity of the predicted abundance, the area occupied, and the proportion of the predicted abundance found in the standard bottom trawl survey area. On average the shifts were modest, averaging 35.2 km (ranging from 1 to 202 km). There were significant differences in the predicted trend for distribution metrics among climate scenarios, with the most extensive changes in distribution resulting from Representative Concentration Pathway 8.5 climate scenarios. The variability in distributional shifts among years and climate scenarios was high, although the magnitudes were low. This study provides a basis for understanding where fish populations might expand or contract in future years. This will provide managers’ information that can help guide appropriate actions under warming conditions.

Urbanisation and eutrophication as drivers of morphological and physiological divergence among riverine fish populations

2021 ◽  
Author(s):  
Jessica Côte ◽  
Océane Morisseau ◽  
Camille Pilisi ◽  
Charlotte Veyssière ◽  
Annie Perrault ◽  
...  
Keyword(s):  
Fish Populations ◽  
Riverine Fish

Stability and return times of Leslie matrices with density-dependent survival: applications to fish populations

1980 ◽  
Vol 8 ◽  
pp. 149-163 ◽  
Author(s):  
D.L. Deangelis ◽  
L.J. Svoboda ◽  
S.W. Christensen ◽  
D.S. Vaughan
Keyword(s):  
Fish Populations ◽  
Density Dependent ◽  
Return Times ◽  
Leslie Matrices
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