A Fisheries Investigation of the Previously Un-Surveyed Little Bear River
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A grotesque variant of Silurus asotus (Teleostei: Siluridae) from Hongshuihe River basin, Guizhou, China
One grotesque catfish specimen was collected in Zhangjiang River (upper reach of a secondary tributary of Hongshuihe River) in Libo County, Guizhou Province, China. This specimen bears surprising character of four dorsal fins, which have not appeared in any other silurid fishes. But other morphological characters, such as two pairs of barbels, lower jaw projecting beyond upper jaw, the first do...
متن کاملA grotesque variant of Silurus asotus (Teleostei: Siluridae) from Hongshuihe River basin, Guizhou, China
One grotesque catfish specimen was collected in Zhangjiang River (upper reach of a secondary tributary of Hongshuihe River) in Libo County, Guizhou Province, China. This specimen bears surprising character of four dorsal fins, which have not appeared in any other silurid fishes. But other morphological characters, such as two pairs of barbels, lower jaw projecting beyond upper jaw, the first do...
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Microsatellite loci can be used to estimate spawning escapements of individual Pacific salmon populations returning to remote spawning locations throughout large river systems by analysis of appropriately weighted samples from test fisheries near the river mouth. Variation at six microsatellite loci (Omy??, Ots3, Ots3, Ots3, Ots3, and Ots3) was surveyed from approximately 1,700 sockeye salmon (...
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Heavy metals are considered as the most dangerous water contaminants because of their possibility of bioaccumulation and toxic effects. This study tried to investigate the bio-availability of heavy metals in terms of Ni, Zn, Cu, Fe, Hg, Cd, and Pb in the sediment during dry seasons in Aras River basin located in Ardabil Province, north-west of Iran. Also the metal concentration in the skin and ...
متن کاملEvaluation of Instream Flow Methodologies for Fisheries in Nebraska
.................................................... 8 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9 METHODS ...................................................... 10 Tennant method ............................................. 10 Modified Tennant method ..................................... 11 Single Cross-Section method ...........
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تاریخ انتشار 2013