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Full-Text Articles in Aquaculture and Fisheries

Terrestrial Natural Communities Of Nebraska (Version Iii - June 30, 2005), Gerry Steinauer, Steven B. Rolfsmeier Jun 2003

Terrestrial Natural Communities Of Nebraska (Version Iii - June 30, 2005), Gerry Steinauer, Steven B. Rolfsmeier

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

For more than a decade, The Nature Conservancy (TNC) and state natural heritage programs, including the Nebraska Natural Heritage Program (NNHP), have used a “coarse filter/fine filter” approach to preserving biological diversity (The Nature Conservancy, 1994). This approach involves identification and protection of natural communities (coarse filter) as well as rare species (fine filter). Identifying and protecting representative examples of natural communities ensures conservation of most species, biotic interactions and ecological processes. Those species that “fall through” the community filters are generally the rare species. Identification and protection of viable occurrences of rare species serves as the fine filter for …


Conservations Practices And Programs For Your Farm May 2003

Conservations Practices And Programs For Your Farm

United States Fish and Wildlife: Staff Publications

Contents:

Conserving croplands

Improving water quality

Managing for Wildlife


Ecology Of The Missouri River: Missouri River Creel Survey, Bellevue Bridge To Camp Creek, 30 March Through 11 October 2002. Supplement I, Gerald Mestl Mar 2003

Ecology Of The Missouri River: Missouri River Creel Survey, Bellevue Bridge To Camp Creek, 30 March Through 11 October 2002. Supplement I, Gerald Mestl

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

This report describes Missouri River activities and results related to a channelized Missouri River creel survey conducted from 30 March through 11 October 2002. This is the third of a planned annual creel survey to be conducted on alternating sections of the channelized Missouri River to measure changes in recreational fishing activity, especially those changes due to large scale habitat restoration efforts. Future reports will contain additional analyses of these data. Anglers spent over 42,000 hours fishing the Missouri River from Bellevue (rkm 967.7) to Camp Creek (rkm 883.5) during the survey period. Effort was steady from late spring (4/27 …


A Guide To Prairie And Wetland Restoration In Eastern Nebraska, Gerry Steinauer, Bill Whitney, Krista Adams, Mike Bullerman, Chris Helzer Jan 2003

A Guide To Prairie And Wetland Restoration In Eastern Nebraska, Gerry Steinauer, Bill Whitney, Krista Adams, Mike Bullerman, Chris Helzer

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

This publication documents the restoration methods originally developed by Bill Whitney and later refined by himself and other ecologists from TNC, PRCT, NGPC and USFWS working in eastern Nebraska. Restoration of the following plant community types is covered in this document: tallgrass prairie, mixed-grass prairie, sand prairie, freshwater wet meadow and marsh, Rainwater Basin wet meadow and marsh, and saline wet meadow and marsh.

The methods we use are generally affordable and not complicated. To quickly summarize, we handpick and machine harvest seed, do little seed cleaning and broadcast plant with a fertilizer spreader. We do not mow annual weeds …


Feasibility Study On Nonnative Fish Removal In The Lower Little Colorado River, Pam Sponholtz Jan 2003

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 Jan 2003

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 Jan 2003

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 Jan 2003

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 …