Results 51 to 60 of about 26,140 (210)
Journal of Freshwater Ecology, 2018 Aquatic macroinvertebrates respond to patch dynamics arising from interactions of physical and chemical disturbances across space and time. Anadromous fish, such as sea lamprey, Petromyzon marinus, migrate from the ocean and alter physical and chemical ...
Daniel M. Weaver +2 more
doaj +1 more source
Dynamics of trophic structure for the epipelagic community in the western Bering Sea
Известия ТИНРО, 2014 Changes of quantitative composition and trophic structure of the nekton community in the western Bering Sea are considered for the last decades and role of pacific salmons in dynamics of trophic flows is evaluated in dependence on their abundance using ...
Alexander V. Zavolokin +2 more
doaj +1 more source
Florida’s Shad and River Herrings (Alosa species): a review of Population and Fishery Characteristics [PDF]
, 2000 Of the six shad and river herring species (Clupeidae: Alosa species) found in North America, five occur in Florida (Figure 1), more than in any other state in the U.S.
McBridge, Richard S.
core
Fish and Fisheries, EarlyView.ABSTRACT Fish migration through river networks is essential for completing life cycles and accessing critical habitats, but fragmentation increasingly disrupts spawning movements. In Europe, over one million barriers limit connectivity and create trade‐offs between ecological integrity and human uses, such as hydropower, flood control, fisheries and ...
Christian Schlautmann +5 more
wiley +1 more source
Male choice in the stream-anadromous stickleback complex. [PDF]
PLoS ONE, 2012 Studies of mating preferences and pre-mating reproductive isolation have often focused on females, but the potential importance of male preferences is increasingly appreciated.
Jeffrey S McKinnon +6 more
doaj +1 more source
Fishes, 2022 Brook trout populations in Prince Edward Island, Canada, have experienced over 50 pesticide-related fish kills since the 1960s. Life history evaluation of large sea-run brook trout recovered following two fish kill events was compared with a reference ...
Scott D. Roloson +5 more
doaj +1 more source
Anadromous fish as marine nutrient vectors [PDF]
, 2009 The tidal freshwater of Virginia supports anadromous herring (Alosa spp.) spawning runs in the spring; however, their importance as nutrient delivery vectors to the freshwater fish food web remains unknown.
Garman, Greg C. +2 more
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Fish and Fisheries, EarlyView.ABSTRACT Development of data‐intensive stock assessment and ecosystem‐based models has improved our understanding of shifting species abundance in response to fishing, ocean ecology, and species interactions. Along with this analytical progress is evidence that many stocks lack data required for complex models, resulting in data‐limited options for ...
Allegra Ervin +3 more
wiley +1 more source
Pacific Salmon, Oncorhynchus spp., and the Definition of "Species" Under the Endangered Species Act [PDF]
, 1991 For purposes ofthe Endangered Species Act (ESA), a "species" is defined to include "any distinct population segment of any species of vertebrate fish or wildlife which interbreeds when mature. "Federal agencies charged with carrying out the provisions of
Waples, Robin S.
core
Fisheries Management and Ecology, EarlyView.ABSTRACT The global decline in salmonid stocks has increased the need for knowledge of local adaptations and life history strategies of salmonids. In this study, we used radio‐telemetry tracking data from sea trout populations in two large high‐latitude rivers to model upstream spawning migration speed of trout in response to prevailing environmental ...
L. Lähteenmäki +8 more
wiley +1 more source