Results 171 to 180 of about 1,431 (210)
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The rainbow smelt, Osmerus mordax, complex of Lake Utopia: threatened or misunderstood?
Environmental Biology of Fishes, 2004We report on the spawning ecology, genetic characteristics, and predation threats to spawning groups of rainbow smelt, Osmerus mordax, in Lake Utopia, New Brunswick where a dwarf morpho-type has been listed as a threat- ened species. Two spawning groups in three inlet streams had been previously identified; we observed three groups using four inlet ...
R. Allen Curry +3 more
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Experimental Culture of Young Rainbow Smelt Osmerus mordax
Transactions of the American Fisheries Society, 1985Abstract There is a large demand for rainbow smelt as a bait and food fish, and culture of the species has economic potential. In 1979, we began experiments to define optimum conditions for incubation of eggs and growth of larvae and juveniles. Hatching success was 40–80% in fresh and brackish water, but zero in full-strength seawater.
John J. Akielaszek +3 more
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The smelt Osmerus eperlanus in Scotland
1996Smelt populations have been recorded since the 18th Century from at least 15 rivers in Scotland, but over the last Century the species has suffered a severe decline and has disappeared from all its former sites except the rivers Cree, Forth and Tay. These populations must now be regarded as having high conservation importance.
Maitland, Peter, Lyle, Alex
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The Occurrence of Nuptial Tubercles on the Female of Osmerus mordax (Mitchill)
Copeia, 1942NUPTIAL tubercles appear as male adornments in many species of fishes at the mating season. Hypertrophy of epidermal cells in minute patches gives rise to the tubercles which commonly occur on the fins, head or body (e.g. Barbatulus, Catostomus, Moxostoma, Carassius, etc.), or a similar but more extensive hypertrophy leads to the formation of thickened
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Density and biomass of smelt (Osmerus eperlanus) in five Finnish lakes
Fisheries Research, 2005Abstract Hydro-acoustic stock assessment and exploratory sampling with small mesh-sized trawls and seines have sometimes suggested that the importance of smelt (Osmerus eperlanus) in pelagic fish communities might be greater than sampling from commercial fishery and gillnetting indicate.
Juha Jurvelius +3 more
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Hydroacoustic in situ target strength of smelt (Osmerus eperlanus (L.))
Fisheries Research, 2006Abstract Dependence of the in situ acoustic target strength (TS) of smelt (Osmerus eperlanus (L.)) on the total fish length (L) was estimated from TS measurements made with a split-beam 120 kHz echo sounder with reference to fish length–frequency distributions in trawl catches. The studies were conducted in the eutrophic and turbid Lake Hiidenvesi in
Heikki Peltonen +2 more
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Spawning population dynamics of smelt, Osmerus mordax
Journal of Fish Biology, 1979A total of 1618 Osmerus mordax were collected between 27 April and 5 May 1977 from five spawning sites along Lake Superior. The fish were measured, sexed, and aged to determine spawning population dynamics. Length/weight ratios of males vs. females varied with males' growth initially concentrated towards length, while females' growth was concentrated ...
R. Jilek +5 more
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The freeze-avoidance response of smeltOsmerus mordax
Journal of Experimental Biology, 2002SUMMARYSmelt (Osmerus mordax) were maintained at either ambient water temperature or approximately 5°C and various aspects of their freeze-avoidance response were examined from early winter until early spring. Plasma levels of glycerol, trimethylamine oxide (TMAO) and urea were elevated by December 15 and continued to increase in fish held in ambient ...
Jason R. Treberg +4 more
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Genetic Relationships among Smelt, Genus Osmerus
Copeia, 1982James E. Luey +2 more
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