Powder Subbasin Summary
... The headwater streams of the Powder River subbasin are located in the Blue and Wallowa mountains at elevations between 6,000 and 8,000 feet. The timing and amount of spring runoff is dependent on winter snowpack depth and condition as well as spring weather factors such as temperature and rainfall. ...
... The headwater streams of the Powder River subbasin are located in the Blue and Wallowa mountains at elevations between 6,000 and 8,000 feet. The timing and amount of spring runoff is dependent on winter snowpack depth and condition as well as spring weather factors such as temperature and rainfall. ...
Determination of cadmium, lead and mercury residual levels in meat
... 0.75 mg kg-1 ww) caught off Reunion Island (Kojadinovic et al., 2007). However, skipjack caught off Eastern Pacific Ocean and in front of the Baja California Peninsula had much less Cd (0.055 mg kg-1 ww) (Ruelas-Inzunza et al., 2012). In yellowfin caught off New South Wales waters, Australia, the av ...
... 0.75 mg kg-1 ww) caught off Reunion Island (Kojadinovic et al., 2007). However, skipjack caught off Eastern Pacific Ocean and in front of the Baja California Peninsula had much less Cd (0.055 mg kg-1 ww) (Ruelas-Inzunza et al., 2012). In yellowfin caught off New South Wales waters, Australia, the av ...
What Science Brings to the Challenge of Recovering Species
... west coast of the United States and Canada, from Alaska to southern California. Pacific salmonids generally follow a basic anadromous life history: they are born in freshwater streams, including such diverse locations as coastal lowlands and headwaters thousands of kilometers from the ocean. Juvenil ...
... west coast of the United States and Canada, from Alaska to southern California. Pacific salmonids generally follow a basic anadromous life history: they are born in freshwater streams, including such diverse locations as coastal lowlands and headwaters thousands of kilometers from the ocean. Juvenil ...
The Association of Ophiothrix lineata and Callyspongia vaginalis: A
... CHIAJE) with sponges, for example, has been attributed simply to the climbing behavior of the brittlestar or its reaction to water currents (FEDRAet al., 1976; FEDRA, 1977; STACHOWITSCH, 1980). Unfortunately, the ecology of brittlestars which are facultatively associated with sponges has not been in ...
... CHIAJE) with sponges, for example, has been attributed simply to the climbing behavior of the brittlestar or its reaction to water currents (FEDRAet al., 1976; FEDRA, 1977; STACHOWITSCH, 1980). Unfortunately, the ecology of brittlestars which are facultatively associated with sponges has not been in ...
4.1 Fish
... (1989), which involved public agencies, local government/communities, and stakeholders. Much of this state plan was later embodied in the CVPIA, which also includes the AFRP. The Restoration Project is part of a larger basinwide effort described in the CALFED Program Ecosystem Restoration Program Pl ...
... (1989), which involved public agencies, local government/communities, and stakeholders. Much of this state plan was later embodied in the CVPIA, which also includes the AFRP. The Restoration Project is part of a larger basinwide effort described in the CALFED Program Ecosystem Restoration Program Pl ...
Thermal cautery of the canine third eyelid for treatment of cartilage
... The cause of third eyelid cartilage eversion is unknown. It was initially reported to be a congenital condition in certain breeds of dogs with cartilage deformed in the shape of a hook causing the edge of the membrane to turn out.2 Martin and Leach recognized a genetic connection in German Shorthair ...
... The cause of third eyelid cartilage eversion is unknown. It was initially reported to be a congenital condition in certain breeds of dogs with cartilage deformed in the shape of a hook causing the edge of the membrane to turn out.2 Martin and Leach recognized a genetic connection in German Shorthair ...
Position Paper - Waddenacademie
... ship locks, pumps and culverts of which several are structurally operated (8) or equipped with technical facilities (17) to enhance fish migration from the sea to freshwater systems. Identifying best practices and finding optimal locations requires a quantitative assessment of fish passing efficienc ...
... ship locks, pumps and culverts of which several are structurally operated (8) or equipped with technical facilities (17) to enhance fish migration from the sea to freshwater systems. Identifying best practices and finding optimal locations requires a quantitative assessment of fish passing efficienc ...
An appraisal of stocking strategies in the light of
... Amongst the consequences of stocking are a reduction of stock fitness through genetic introgression (Allendorf, Ryman & Utter 1987; Carvalho & Cross 1998), the transfer of diseases (Kennedy 1993), competitive interactions with other species, and the effects on ecosystem trophic dynamics such as pred ...
... Amongst the consequences of stocking are a reduction of stock fitness through genetic introgression (Allendorf, Ryman & Utter 1987; Carvalho & Cross 1998), the transfer of diseases (Kennedy 1993), competitive interactions with other species, and the effects on ecosystem trophic dynamics such as pred ...
Otolith science entering the 21st century
... to reconstruct the species of the prey. In this type of study, the otolith is not the subject of the study per se, but a tool to answer a predation question. For example, the extent of predation of shrimp on juvenile plaice in a shallow-water nursery was assessed by identifying plaice otoliths in sh ...
... to reconstruct the species of the prey. In this type of study, the otolith is not the subject of the study per se, but a tool to answer a predation question. For example, the extent of predation of shrimp on juvenile plaice in a shallow-water nursery was assessed by identifying plaice otoliths in sh ...
Does individual variation in metabolic phenotype predict fish
... [the most extreme case being r = 0⋅88 for bleak Alburnus alburnus (L. 1758) when the two respirometry trials were separated by only an hour (Voutilainen et al., 2011)]. As the interval between trials increases, the measurements of relative SMR become less similar. The most detailed analysis of this ...
... [the most extreme case being r = 0⋅88 for bleak Alburnus alburnus (L. 1758) when the two respirometry trials were separated by only an hour (Voutilainen et al., 2011)]. As the interval between trials increases, the measurements of relative SMR become less similar. The most detailed analysis of this ...
A Seahorse of a Different Color
... Kelp!forests!are!very!dense,!so!species!like!the!leafy!seadragon!camouflage!well! amongst!the!blades!of!kelp.!!!The!seahorse!is!a!carnivore!and!it!hunts!small! crustaceans!that!it!can!fit!into!its!tiny!toothless!mouth!opening.!Since!seahorses!lack! a!stomach!they!cannot!hold!onto!their!food!very!lon ...
... Kelp!forests!are!very!dense,!so!species!like!the!leafy!seadragon!camouflage!well! amongst!the!blades!of!kelp.!!!The!seahorse!is!a!carnivore!and!it!hunts!small! crustaceans!that!it!can!fit!into!its!tiny!toothless!mouth!opening.!Since!seahorses!lack! a!stomach!they!cannot!hold!onto!their!food!very!lon ...
Myxobolus cerebralis
Myxobolus cerebralis is a myxosporean parasite of salmonids (salmon, trout, and their allies) that causes whirling disease in farmed salmon and trout and also in wild fish populations. It was first described in rainbow trout in Germany a century ago, but its range has spread and it has appeared in most of Europe (including Russia), the United States, South Africa and other countries. In the 1980s, M. cerebralis was found to require a tubificid oligochaete (a kind of segmented worm) to complete its life cycle. The parasite infects its hosts with its cells after piercing them with polar filaments ejected from nematocyst-like capsules.Whirling disease afflicts juvenile fish (fingerlings and fry) and causes skeletal deformation and neurological damage. Fish ""whirl"" forward in an awkward, corkscrew-like pattern instead of swimming normally, find feeding difficult, and are more vulnerable to predators. The mortality rate is high for fingerlings, up to 90% of infected populations, and those that do survive are deformed by the parasites residing in their cartilage and bone. They act as a reservoir for the parasite, which is released into water following the fish's death. M. cerebralis is one of the most economically important myxozoans in fish, as well as one of the most pathogenic. It was the first myxosporean whose pathology and symptoms were described scientifically. The parasite is not transmissible to humans.