The common coral trout is one species of major importance in commercial fisheries and aquaculture. Recently, two different color morphs of Plectropomus leopardus were discovered and the biological importance of the color difference is unknown. Since coral trout species are poorly characterized at the molecular level, we undertook the transcriptomic characterization of the two color morphs, one ...

We evaluated habitat features (i.e., substrate particle size, water depth, water velocity) at spawning redds and randomly selected reference locations (where spawning activity was not apparent) to determine importance of these features to rainbow trout (Oncorhynchus mykiss) spawning habitat use in the Pere Marquette River, Michigan, 1997 to 1999. Rainbow trout selected areas with small gravel, ...

Arrestins are cytosolic proteins involved in the desensitization of G-protein-coupled receptors. We report the cloning of trout red blood cell arrestin which shows 76, 82 and 52% identity with bovine beta-arrestin1, beta-arrestin2 and retinal arrestin respectively. Antibodies were generated against the C-terminus of trout red blood cell arrestin. These antibodies detected arrestin in erythrocyt...

Cathelicidin antimicrobial peptides (CAMPs) represent a crucial component of the innate immune system in vertebrates. Although widely studied in mammals, little is known about the structure and function of fish CAMPs. Further to the previous findings, two more cathelicidin genes and multiple transcripts from rainbow trout were identified in the present study. Interestingly, we found that trout ...

Rainbow smelt (Osmerus mordax) have invaded many North American lakes, often resulting in the extirpation of native fish populations. Yet, their invasion is incipient and provides the rationale for identifying ecosystems likely to be invaded and where management and prevention efforts should be focused. To predict smelt presence and absence, we constructed a classification-tree model based on h...

Proliferative kidney disease in brown trout – infection level, pathology and mortality under field 1 conditions 2 3 Heike Schmidt-Posthaus, Regula Hirschi, Ernst Schneider 4 5 Centre for Fish and Wildlife Health, Department of Infectious Diseases and Pathobiology, University 6 of Berne, Laenggassstrasse 122, P.O. Box 8466, 3001 Berne, Switzerland 7 Alte Landstrasse 156, 8800 Thalwil, Switzerlan...

A full-length inducible nitric oxide synthase (iNOS) gene has been sequenced for the first time outside the mammals, and the gene organization compared with that already determined for human iNOS. While there are some differences from the human gene, overall the exons show remarkable conservation in sequence and organization. As in human, the trout iNOS gene has 27 exons, with 18 of the trout e...

Bull trout Salvelinus confluentus are a species of char that have been intensively studied since they were listed as threatened under the U. S. Endangered Species Act in 1998. Much of the research on bull trout has involved the use of radio telemetry to monitor the movements of this highly mobile species. This project was initiated to compile information on completed and ongoing radio telemetry...

Six triploid individuals were found in a full-sib family of 11 adult rainbow trout (Salmo gairdneri) from a domesticated hatchery stock. The triploid individuals were normal in size and external appearance, had underdeveloped gonads, and showed no evidence of 3n/2n chimerism or mosaicism. XXY triploids were males, suggesting that the Y chromosome is male determining in trout. Because they may a...

Proliferative kidney disease in brown trout – infection level, pathology and mortality under field 1 conditions 2 3 Heike Schmidt-Posthaus, Regula Hirschi, Ernst Schneider 4 5 Centre for Fish and Wildlife Health, Department of Infectious Diseases and Pathobiology, University 6 of Berne, Laenggassstrasse 122, P.O. Box 8466, 3001 Berne, Switzerland 7 Alte Landstrasse 156, 8800 Thalwil, Switzerlan...