Results 261 to 270 of about 129,490 (315)
River Research and Applications, EarlyView.ABSTRACT Salmonid fishes typically express anadromy. During their juvenile riverine emigration, their downstream movements can be inhibited by hydropower schemes that entrain fish in their intakes. Here, the riverine migration success of smolts of brown trout Salmo trutta (“trout smolt”) and Atlantic salmon Salmo salar smolts (“salmon smolt”) was ...
Bertram I. C. Warren, J. Robert Britton
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Using Trail Cameras to Monitor Culvert Connectivity in Wadeable Streams
River Research and Applications, EarlyView.ABSTRACT Anthropogenic barriers in aquatic habitats have led to fragmentation and decreased fish diversity worldwide. Road crossing barriers such as culverts are a significant source of fragmentation and can impede aquatic organism passage (AOP). Many large extent efforts to inventory road crossing barriers and prioritize restoration efforts do not ...
Lesley Twiner +2 more
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River Research and Applications, EarlyView.ABSTRACT Hydropower management has altered discharge regimes of large rivers worldwide, reducing sediment mobilization and early‐seral conditions essential for many riverine species. Spiny softshell turtles (Apalone spinifera) rely on alluvial habitats for nesting and may serve as sentinel species to assess the effects of regulated flow regimes and ...
Kayhan Ostovar +6 more
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Speciation in Freshwater Fishes
Annual Review of Ecology, Evolution, and Systematics, 2014The extraordinary species richness of freshwater fishes has attracted much research on mechanisms and modes of speciation. We here review research on speciation in freshwater fishes in light of speciation theory, and place this in a context of broad-scale diversity patterns in freshwater fishes.
Seehausen Ole, Wagner Catherine
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Folkbiology of freshwater fish
Cognition, 2006Cross-cultural comparisons of categorization often confound cultural factors with expertise. This paper reports four experiments on the conceptual behavior of Native American and majority-culture fish experts. The two groups live in the same general area and engage in essentially the same set of fishing-related behaviors.
Douglas L, Medin +6 more
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2022
AbstractFreshwater (FW) aquaculture has greater potential than mariculture for intensifying production in ecologically sustainable systems that utilize available know-how and technologies. FW fishes used for aquaculture are positioned lower in trophic webs and, thus, require fewer resources than most catadromous, anadromous, and marine aquaculture ...
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AbstractFreshwater (FW) aquaculture has greater potential than mariculture for intensifying production in ecologically sustainable systems that utilize available know-how and technologies. FW fishes used for aquaculture are positioned lower in trophic webs and, thus, require fewer resources than most catadromous, anadromous, and marine aquaculture ...
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1975
New Zealand has a small freshwater fish fauna, by any standard of comparison. A precise enumeration is not yet possible as some taxonomic problems remain to be resolved, but there are about 30 native species. Eight families are represented, none of which is endemic.
R. M. McDowall, A. H. Whitaker
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New Zealand has a small freshwater fish fauna, by any standard of comparison. A precise enumeration is not yet possible as some taxonomic problems remain to be resolved, but there are about 30 native species. Eight families are represented, none of which is endemic.
R. M. McDowall, A. H. Whitaker
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Geriatric Freshwater and Marine Fish
Veterinary Clinics of North America: Exotic Animal Practice, 2020As pain management finally becomes accepted for this last of the vertebrate taxa, fish medicine is finally reaching the sophistication of other vertebrates. The diseases of aging fish in captivity therefore need to be addressed. The degenerative organ/tissue changes and neoplasias of fish deserve the same diagnosis and treatments of their terrestrial ...
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Freshwater fishes of northern Australia
Zootaxa, 2017Northern Australia is biologically diverse and of national and global conservation signicance. Its ancient landscape contains the world’s largest area of savannah ecosystem in good ecological condition and its rivers are largely free-flowing. Agriculture, previously confined largely to open range-land grazing, is set to expand in extent and to focus ...
Pusey, Bradley J. +6 more
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The visual pigments of freshwater fishes
Vision Research, 1967Abstract Dark-adapted retinae from 59 species of freshwater fishes were extracted in digitonin and analyzed for visual pigment content using the method of partial bleaching. Results of this survey, combined with the investigations of others, show that the classic view of visual pigment distribution among vertebrates is erroneous.
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