Results 221 to 230 of about 10,707 (256)
Some of the next articles are maybe not open access.
Substrate discrimination and preference in foraging fish
Animal Behaviour, 2004Increasing substrate structural complexity has been linked to higher densities of various refuge-seeking aquatic macroinvertebrates, many of which constitute major prey species in a variety of freshwater communities. We investigated (1) whether the three-spined stickleback, Gasterosteus aculeatus, a predator of such macroinvertebrates and an ...
Michael M. Webster, Paul J.B. Hart
openaire +1 more source
Variation in foraging tactics of fishes
1983Changes in feeding tactics over short intervals and variation among individuals have often been ignored or treated as ecological ‘noise’. This paper reviews foraging variability in fishes and discusses its sources and consequences. Evidence is accumulating that individuals in many populations differ substantially in physiological, morphological, and ...
openaire +1 more source
Games fish play: Making decisions as a social forager
Trends in Ecology & Evolution, 1988Suppose a customer wishes to buy a bag of fruit in a market hall during his lunch break and has the choice between two crowded fruiterers' shops. The complexity of problems inherent in such a situation has been increasingly appreciated by behavioural ecologists interested in social foraging of animals.
openaire +4 more sources
Nutrient Content of Clupeid Forage Fishes
Transactions of the American Fisheries Society, 1987Abstract Gizzard shad Dorosoma cepedianum, threadfin shad D. petenense, hybrid gizzard shad x threadfin shad, and alewives Alosa pseudoharengus were collected from Cherokee, Dale Hollow, and Old Hickory reservoirs, Tennessee, from January 1984 through December 1984.
Richard J. Strange, Janice C. Pelton
openaire +1 more source
Foraging behaviour in fishes: perspectives on variance
Environmental Biology of Fishes, 1986The positive relationship between size of prey and frequency of ingestion by predators has been a focal point of investigations in foraging ecology. Field studies compare the frequency distribution of prey sizes in the predator’s gut with that in the environment.
Brian M. Marcotte, Howard I. Browman
openaire +1 more source
Adaptive Flexibility in the Foraging Behavior of Fishes
Canadian Journal of Fisheries and Aquatic Sciences, 1983Flexibility is an important adaptive feature of the foraging behavior of fishes, because most natural environments vary both spatially and temporally. Fish should respond to low levels of food availability by altering their behavior in ways which ensure higher feeding rates, larger feeding territories, and broader diets.
openaire +1 more source
Forage fish: Pacific herring in Alaska
Open Access GovernmentForage fish: Pacific herring in Alaska W. Scott Pegau and Hayley Hoover discuss the plight of forage fish, with a particular emphasis on understanding the lack of recovery of Pacific herring in Prince William Sound, Alaska. Pacific herring (Fig.
W. Scott Pegau +2 more
openaire +1 more source
Evaluating Impacts of Forage Fish Abundance on Marine Predators.
Conservation Biology, 2021Olaf P. Jensen +2 more
exaly
Marine Forage Fishes in Puget Sound
2007Abstract : Forage fishes are small, schooling fishes that are key prey items for larger predatory fish and wildlife in a marine food web. In Puget Sound, forage fish species occupy every marine and estuarine nearshore habitat. Nearshore habitats are of special concern, because many species use them for spawning.
openaire +1 more source