Aquaculture and Fisheries Commons^™

Conservations Practices And Programs For Your Farm

United States Fish and Wildlife: Staff Publications

Contents:

Conserving croplands

Improving water quality

Managing for Wildlife

Feasibility Study On Nonnative Fish Removal In The Lower Little Colorado River, Pam Sponholtz

United States Fish and Wildlife: Staff Publications

This section provides insight into the relationship between the proposed action and the Adaptive Management Program goals and objectives, Recovery Goals for the humpback chub, and the Biological Opinion RPAs on Glen Canyon Dam operations.

Breeding Season Avifauna Of Prairie Dog Colonies And Non-Colonized Areas In Shortgrass Prairie, Stephen L. Winter, Jack Cully Jr., Jeffrey Pontius

United States Fish and Wildlife: Staff Publications

Avian assemblages of black-tailed prairie dog (Cynomys ludovicianus) colonies were compared to those present at two types of non-colonized grassland, during the breeding season, in southwestern Kansas and southeastern Colorado. Relative abundances were quantified in 1996 during a period of drought and in 1997 during a period of above average precipitation. We detected fewer bird species at all sites in 1996 than in 1997, and the total number of bird species detected on prairie dog colonies was lower than that detected on both types of non-colonized areas during both years. Homed larks (Eremophila alpestris) had higher …

Morphology Of The Spores Of Myxosoma Cerebralis (Hofer, 1903) And M. Cartilaginis (Hoffman, Putz, And Dunbar, 1965)*, Glenn L. Hoffman, Jiří Lom

United States Fish and Wildlife: Staff Publications

The spore of Myxosoma cerebralis is redescribed and compared with that of a close relative, M. cartilaginis. M. cerebralis is smaller, with greater variability in size and shape. It possesses a mucous envelope whereas M. cartilaginis does not. The surface architecture of M. cerebralis, as seen with the scanning electron microscope, differs in possessing a conspicuous circumsutural groove, prominent polar filament pores, and a mucous envelope.

Bull Trout Salvelinus Confluentus

United States Fish and Wildlife: Staff Publications

Bull trout are members of the char subgroup of the salmon family (salmonids), which also includes the Dolly Varden, lake trout and Arctic char. Bull trout living in streams grow to about 4 pounds while those in lake or large river environments can weigh more than 20 pounds.

Biologists distinguish char from other salmonids such as trout and salmon by
the absence of teeth in the roof of the mouth, the presence of light-colored spots on a dark background (trout and salmon have dark spots on a lighter background), the absence of spots on the dorsal fin, their …