Results 11 to 20 of about 1,835 (185)
To understand the ecology of juvenile chum salmon during early marine life after their downstream migration, we developed a quantitative PCR-based environmental DNA (eDNA) method specific for chum salmon and investigated the spatiotemporal distribution ...
Yuki Minegishi +7 more
doaj +2 more sources
Two Hæmoglobins in Chum Salmon [PDF]
OCCURRENCE of multiple haemoglobins has been reported recently in fish as well as in other vertebrates. In particular, Salmonidae was found electrophoretically to contain fairly close amounts of two or more components1,2. Some physico-chemical properties of the two components of blood haemoglobin in the salmon Oncorhynchus keta, which were prepared ...
K, HASHIMOTO, F, MATSUURA
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Intraspecific structure of feeding and prespawning aggregations of chum salmon in the western Bering Sea in September-October of 2009 and 2010 and in the North-West Pacific in June-July of 2009 and 2010 is investigated on the data of trawl surveys ...
Alexander V. Bugaev +2 more
doaj +1 more source
We examined spatial patterns in diet, trophic niche width and niche overlap for chum, pink and sockeye salmon across the North Pacific during 1959–1969. This is a baseline period before major hatchery enhancement occurred coinciding with a negative phase
Caroline Graham +7 more
doaj +1 more source
Involvement of hormones in olfactory imprinting and homing in chum salmon [PDF]
AbstractThe olfactory hypothesis for salmon imprinting and homing to their natal stream is well known, but the endocrine hormonal control mechanisms of olfactory memory formation in juveniles and retrieval in adults remain unclear. In brains of hatchery-reared underyearling juvenile chum salmon (Oncorhynchus keta), thyrotropin-releasing hormone gene ...
Ueda, Hiroshi +10 more
openaire +3 more sources
Genetic assessment of a summer chum salmon metapopulation in recovery [PDF]
AbstractPrograms to rebuild imperiled wild fish populations often include hatchery‐born fish derived from wild populations to supplement natural spawner abundance. These programs require monitoring to determine their demographic, biological, and genetic effects.
Small, Maureen P +3 more
openaire +2 more sources
A quasi-cyclicity associated with variability of environmental conditions is detected for the regression residuals of the stock-recruitment model for chum salmon Oncorhynchus keta in the Okhotsk district, described by Ricker’s equation.
V. I. Ostrovsky
doaj +1 more source
A Comparative Study of the Chromosomes in the Chum Salmon, the Kokanee Salmon and their Hybrids [PDF]
SUMMARYThe somatic chromosomes were studied in the chum salmon (Oncorhynchus keta), the kokanee salmon (O. nerka) and their hybrids, by application of the routine air-drying method. The diploid numbers were 74 for the chum salmon and 58 for the kokanee salmon. Their hybrids showed 66 chromosomes corresponding to a total sum of the haploid number of the
Motomichi Sasaki +3 more
openaire +1 more source
Differential rejection of salmon lice by pink and chum salmon
The consequences of high (735 copepodids fish-1) and low (243 copepodids fish-1) level exposures of size-matched juvenile pink and chum salmon to Lepeophtheirus salmonis copepodids were examined. At both levels of exposure the prevalence and abundance of
Fast, Mark D. +3 more
core +2 more sources

