Results 271 to 280 of about 21,191 (303)

Abundance, Growth, and Interactions of Juvenile Steelhead Relative to Time of Emergence

Transactions of the American Fisheries Society, 1988
Abstract Growth, interactions, and final densities of juvenile steelhead, Oncorhynchus mykiss (formerly Salmo gairdneri) emerging early versus later were compared in laboratory stream channels. When the two groups of juveniles were held together 1–2 months, early emerging fish generally outnumbered late fish about 2 to 1.
G. L. Chandler, T. C. Bjornn
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Flow and Habitat Effects on Juvenile Fish Abundance in Natural and Altered Flow Regimes

Ecological Applications, 2001
Conserving biological resources native to large river systems increasingly depends on how flow-regulated segments of these rivers are managed. Improving management will require a better understanding of linkages between river biota and temporal variability of flow and instream habitat.
Freeman, M C, Bowen, Z H, Bovee, K D, Irwin, E R   +3 more
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Abundance and habitat use of juvenile sunfish among different macrophyte stands

Lake and Reservoir Management, 2010
Abstract Collingsworth, PD and Kohler, CC. 2010. Abundance and habitat use of juvenile sunfish among different macrophyte stands. Lake Reserv. Manage. 26:35-42. Juvenile Lepomis sunfish (< 75 mm total length, TL) density, plant stem density and invertebrate density were compared in the 3 most common habitats in the littoral zone of Cedar Lake, a ...
Paris D. Collingsworth, Christopher C. Kohler   +1 more
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The Abundance of Estuarine Larval and Juvenile Fish in a South Carolina Intertidal Creek

Estuaries, 1980
The fall and winter population of larval fish in a small intertidal creek was measured. The creek was blocked at high tide, and the immature fish were captured in a channel net designed for consistent quantitative sampling as they left with the ebbing tide.
Earl L. Bozeman, John Mark Dean
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Flow Regime, Juvenile Abundance, and the Assemblage Structure of Stream Fishes

Ecology, 1985
The assemblage of fishes in a second—order stream in east—central Illinois was compared through seine sampling for two years with distinctly different flow regimes. In both years adult (age >0) fish were most abundant in late spring and early summer while juvenile (age 0) abundance peaked in late summer or autumn.
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Summer distribution and abundance of larval and juvenile fishes in the western Ross Sea

Antarctic Science, 1999
Ichthyoplankton samples were collected during the November–December 1994 Italian Antarctic Oceanographic Cruise carried out to the western Ross Sea. A midwater trawl (Hamburg Plankton Net) was used to collect samples at 26 stations. Larval and juvenile specimens of 21 species belonging to six families (Artedidraconidae, Bathydraconidae, Channichthyidae,
M Vacchi, M La Mesa, S Greco
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Effects of habitat complexity and predator exclusion on the abundance of juvenile red snapper

Journal of Fish Biology, 2007
Predator exclusion and habitat complexity factors that may affect juvenile red snapper Lutjanus campechanus habitat selection were examined in field and laboratory experiments. A significant predator exclusion effect was detected. Uncaged shell habitats showed significantly lower numbers of age 0 year red snapper, and both uncaged shell and block‐shell
A. A. Piko, S. T. Szedlmayer
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On the factors influencing juvenile flatfish abundance in the lower Severn Estuary, England

Netherlands Journal of Sea Research, 1994
Bridgwater Bay within the Bristol Channel, Somerset, England is a nursery ground for sole, Solea solea, and dab, Limanda limanda, during the autumn and winter. Flounder, Platichthys flesus, both juveniles and adults, are common during the summer. Using a 13-year data set of fish in the bay, correlations were studied between climatic, predatory and ...
P.A. Henderson, R.M.H. Seaby
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Effects of seagrass habitat fragmentation on juvenile blue crab survival and abundance

Journal of Experimental Marine Biology and Ecology, 2002
Seagrasses form temporally dynamic, fragmented subtidal landscapes in which both large- and small-scale habitat structure may influence faunal survival and abundance. We compared the relative influences of seagrass (Zostera marina L.) habitat fragmentation (patch size and isolation) and structural complexity (shoot density) on juvenile blue crab ...
Kevin A Hovel, Romuald N Lipcius
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Distribution and Abundance of Juvenile Salmonids off Oregon and Washington, 1981-1985

2021
This report is a summary of the results of 883 purse seine sets made for juvenile salmonids during 15 cruises off the coasts of Oregon and Washington during the springs and summers of 1981-1985. Juvenile coho salmon (Oncorhynchus kisutch) occurred most frequently, followed by chinook salmon (0. tshawytscha).
Pearch, William G., Fisher, Joseph P.
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