Deterioration of chum salmon muscle during spawning migration. IV. Effect of 17.ALPHA.-methyltestosterone on muscle composition of chum salmon.
نویسندگان
چکیده
منابع مشابه
from Chum Salmon
Cystatin, a cysteine proteinase inhibitor, was isolated from chum salmon (Oncorilynch"s keta) pituitary glands by ion-exchange chromatography on Mono-Q, gel filtration on Superdex 75, and reverse-phase HPLC on an ODS fo1]owing ethanol-ammonium acetate extraction. Salmon pituitary cystatin was equipotent te chicken egg-white cystatin in the papain inhibitory assay. The cystatin consists of 111 a...
متن کاملActivity of the pituitary-gonadal axis is increased prior to the onset of spawning migration of chum salmon.
The activity of the pituitary-gonadal axis (PG axis) in pre-migratory and homing chum salmon was examined because endocrine mechanisms underlying the onset of spawning migration remain unknown. Pre-migratory fish were caught in the central Bering Sea in June, July and September 2001, 2002 and 2003, and in the Gulf of Alaska in February 2006. They were classified into immature and maturing adult...
متن کاملBehavioural thermoregulation of chum salmon during homing migration in coastal waters.
Homing Pacific salmon are suggested to utilise directional cues in shallow water while migrating in coastal waters. Since salmonids are typical cold-water fish, they may have to cope with warm surface water while gathering directional information. We studied behavioural thermoregulation of 31 free-ranging chum salmon Oncorhynchus keta using micro data loggers off the Sanriku coast from early Oc...
متن کاملTrends in Abundance and Biological Characteristics of Chum Salmon
Chum salmon are the second most abundant salmon in the North Pacific Ocean. In the 1930s, chum salmon were abundant along the Russian coast and in British Columbia. The total catch of chum salmon was small from the late 1940s into the 1970s but increased in the 1980s, reaching historically high levels from the 1990s to the present. Ocean distribution of chum salmon is affected by sea surface te...
متن کاملTrace amounts of saxitoxins in the viscera of chum salmon
Low levels of saxitoxins and tetrodotoxin were found in the viscera of adult chum salmon Oncorhynchus keta returning to spawn. The nucleic magnetic resonance and mass spectrum analyses as well as several kinds of chromatographies clearly showed that the purified toxins were saxitoxin and neosaxitoxin. Tetrodotoxin, which was detected by high performance l~qu id chromatography analysis, could no...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1986
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.52.565