Publications
This list of publications includes peer-review journal articles, official USGS publications series, reports and more authored by scientists in the Ecosystems Mission Area. A database of all USGS publications, with advanced search features, can be accessed at the USGS Publications Warehouse.
Filter Total Items: 41920
Influence of water temperature on gill sodium, potassium-stimulated ATPase activity in juvenile coho salmon (Oncorhynchus kisutch)
1. Gill sodium, potassium-stimulated ATPase activity was determined from December to July in gills of yearling coho salmon (Oncorhynchus kisutch) maintained at four temperatures, 6, 10, 15 and 20°C.2. Compared to fish held at 6°C, elevation in ATPase activity and the associated parr-smolt transformation were accelerated in fish at 10 and 15°C whereas animals at 20°C experienced at best only a tran
Authors
W.S. Zaugg, L. R. McLain
Radiocarbon dates from Alaska, Yukon Territory, and British Columbia
No abstract available.
Authors
Frederic H. Wilson, M. Springer Young
Twenty-ninth winter bird population study. No. 51. Joshua tree woodland. II.
No abstract available.
Authors
J.V. Remsen, Kristin H. Berry, E. Wessman
Problems in the physiological monitoring of wild fish populations
No abstract available
Authors
R.S. Wydoski, Gary Wedemeyer
On the foraging and prey selection of nesting Caspian Terns
No abstract available.
Authors
Robert E. Gill
Ecology of mangroves in the Jewfish Chain, Exuma, Bahamas
The structure and function of mangrove communities in the Jewfish Chain, Exumas, Bahamas, were investigated for 3-1/2 years. Mangrove vegetation in the Jewfish Chain is similar to that in all the Caribbean-Florida area; Rhizophora mangle L. dominates and is interspersed with Avicennia germinans (L.) Lamk. and Laguncularia racemosa (L.) Gaertn. There is no apparent zonation of these three species.
Authors
L. V. Wilcox, Thomas G. Yocom, A. M. Forbes
Electric power generation and its influence on Great Lakes fish
No abstract available.
Authors
Thomas A. Edsall
Energy-related research of the U. S. Fish and Wildlife Service on the Great Lakes
No abstract available.
Authors
Thomas G. Yocom, Howard D. Tait
Prevention and control of viral diseases of salmonids
Three viral diseases of salmonids are of worldwide concern: infectious pancreatic necrosis (IPN) viral hemorrhagic septicemia (VHS), and infectious hematopoietic necrosis (IHN). Six principal approaches are being used to prevent or control these diseases: 1) preventing contact o the pathogen with the host, 2) environmental manipulation, 3) immunization, 4) chemotherapy, 5 selective breeding for di
Authors
Donald F. Amend
Physiological response of juvenile coho salmon (Oncorhynchus kisutch) and rainbow trout (Salmo gairdneri) to handling and crowding stress in intensive fish culture
Moving 4–5-in. coho salmon (Oncorhynchus kisutch) held in soft (20 ppm CaCO3) water from the relatively light loading density of 0.5 lb/ft3 to 1, 2, or 4 lb/ft3 (density index, DI = 0.1, 0.2, 0.4, 0.8) caused significant stress as indicated by loss of feeding behavior, but only minimal physiological disturbances, as indicated by lack of hyperglycemia or hypochloremia. However, moving them to 6 or
Authors
Gary A. Wedemeyer
Physiological response to hooking stress in hatchery and wild rainbow trout (Salmo gairdneri)
This study evaluated the physiological response of rainbow trout to hooking stress after being played under standardized conditions (0–5 min) and estimated the time needed for recovery (to 72 h). Plasma osmolality and chloride measurements were used to evaluate osmoregulatory disturbances and gill ion-exchange function, and plasma glucose was used as an index of the generalized nonspecific physiol
Authors
R.S. Wydoski, Gary Wedemeyer, N. C. Nelson
Delta-aminolevulinic acid dehydratase: Inhibition in ducks dosed with lead shot
Lead concentration in blood and erythrocyte delta-aminolevulinic acid dehydratase (ALAD) activity was measured in mallard ducks dosed with one all-lead shot or one lead-iron combination shot. For 2 weeks after dosage, lead in blood of ducks given an all-lead shot was fourfold higher than in those dosed with lead-iron shot. At 3 and 4 weeks, the differences in lead residues were directly proportion
Authors
M. T. Finley, M. P. Dieter, L. N. Locke