Biological structure of sockeye salmon Oncorhynchus nerka population of Northeast Kamchatka

Shubkin, S. V.; Бугаев, А. В.

doi:10.15853/2072-8212.2022.67.5-22

Cited by 2 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Within the populations inhabiting these regions, two distinct ecological-temporal forms are prevalent: an early form, primarily spawning in lakes, and a late form, predominantly reproducing in river bed. The distribution between these two forms within the populations is approximately equal (Shubkin & Bugaev, 2023). On the West Coast, the number of the early form is relatively low; the majority of the stocks are represented by the late, predominantly sea/river form.…”

Section: Identifying Major Regional Complexes Within Kamchatka Peninsulamentioning

confidence: 93%

“…In these watersheds, about 80-90% of the total catch of the species in the Russian Far East is annually caught (Bugaev, 2011). Among secondary sockeye salmon stocks, several distinct populations have a relatively high abundance: on the west coast it's the populations of the Bolshaya and Palana rivers, in the east of Kamchatka -Apuka R. and Pakhacha R. populations (Shubkin & Bugaev, 2023). Chukotka is the second most important region of sockeye salmon reproduction in Asia after the Kamchatka peninsula.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Genetic Structuring and Conservation of Asian Sockeye Salmon: Identification of Regional Stock Complexes

Khrustaleva

2024

Preprint

View full text Add to dashboard Cite

In order to describe large-scale spatial structure of Asian sockeye salmon the variability of 45 SNP loci was analyzed in 22 samples from the North-West coast of the Pacific Ocean. Three large regional population complexes were identified: southwestern Kamchatka, Kamchatka River basin, and the North-East (comprising stocks from Koryak Highlands). Populations within the identified complexes are connected by gene migration and have a common origin, close geographic proximity, comparable climatic, landscape and environmental conditions in the freshwater and early marine periods of life. Populations confined to watersheds of the North coast of the Sea of Okhotsk (Palana and Okhota rivers), along with island populations, displayed noteworthy distinctions from the isolated population complexes. We hypothesize that the marked divergence observed in island populations is primarily caused by genetic drift occurring during long periods of isolation. The pronounced divergence of Palana River population may be the result of both genetic drift and natural selection, driven by the challenging smoltification and juvenile transition to the ocean, along with local adaptations during spawning and early life periods in the Palansky Lake. At the same time in the Okhota River population, demographic factors such as genetic drift and bottlenecks played a key role.

show abstract

Section: Identifying Major Regional Complexes Within Kamchatka Peninsulamentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Genetic Structuring and Conservation of Asian Sockeye Salmon: Identification of Regional Stock Complexes

Khrustaleva

2024

Preprint

View full text Add to dashboard Cite

show abstract

Possibilities for the Technology Improvement of Soft-Salted Sockeye Salmon Fillet with a Prolonged Shelf Life without Preservatives Use

Dementieva

Boitsova

Боков³

2023

Food Industry

View full text Add to dashboard Cite

Pacific salmon (Oncorhynchus) are an important object of fishing in the Russian Federation. Prolonged delay of fish before processing provokes the spoilage processes onset, and mi crobiological contamination of salmon fish. The research aim is to study the characteristics of sockeye salmon as a raw material for the delicatessen lightly salted products produc tion, to develop a technology for the production of delicatessen salted products without preservatives using vegetable additives. The research consists of sockeye salmon (Onco rhynchus nerka) characteristic, the size-mass and technochemical composition. The sock eye salmon peculiarity is the presence of a large parasites group that are long-term viable and capable of causing various diseases in humans. Thus, a man recommends to produce delicatessen low-salted sockeye salmon products only from frozen raw materials, using preservatives and re-freezing the finished products. The thesis demonstrates the possibil ity to eliminate preservatives, using dusting with vegetable components as barrier agents (bay leaf, black pepper, chili pepper, dill, garlic, lemon) and storing sockeye salmon frozen in vacuum packaging. The researchers developed six recipes, a technological production scheme of sockeye lightly salted frozen salmon fillets with spices. The authors suggested to combine the operations of raw materials defrosting and salting in order to preserve the raw materials quality, optimize salting, form a maturation “bouquet”, reduce the techno logical process duration. When studying the effect of storing frozen sockeye salmon fillets lightly salted with spices, a man revealed that after 1, 6, 8 months of storage, the pro tein solubility in the experimental sample decreased by 6, 12 and 35 %, respectively. The researchers determined the recommended mode: temperature from minus 2 to 0 °C for 4 days. According to the totality of the studied indicators (organoleptic, physico-chemical, microbiological), the recommended shelf life of lightly salted sockeye salmon fillet with vegetable additives is 8 months at a temperature no higher than minus 18 °C.

show abstract

Biological structure of sockeye salmon Oncorhynchus nerka population of Northeast Kamchatka

Cited by 2 publications

References 8 publications

Genetic Structuring and Conservation of Asian Sockeye Salmon: Identification of Regional Stock Complexes

Genetic Structuring and Conservation of Asian Sockeye Salmon: Identification of Regional Stock Complexes

Possibilities for the Technology Improvement of Soft-Salted Sockeye Salmon Fillet with a Prolonged Shelf Life without Preservatives Use

Contact Info

Product

Resources

About