Article
Multidisciplinary Sciences
Amy Long, Simon R. M. Jones
Summary: Salmonid rickettsial septicemia is an emergent disease caused by Piscirickettsia salmonis in marine-farmed salmonids. The study found species-specific patterns of bacterial shedding and pathogenesis, as well as correlations between physiological parameters and bacterial burden in different fish species. The timing and magnitude of bacterial shedding in infected fish align with mortality, providing insights for pathogen transmission models.
Article
Fisheries
Tessa J. Frost, Ellen M. Yasumiishi, Beverly A. Agler, Milo D. Adkison, Megan McPhee
Summary: The study revealed that competition from Japanese hatchery chum salmon and wild pink salmon from the Russian Far East has a significant impact on the growth of chum salmon from western Alaska, with intraspecific competition having a more pronounced effect.
FISHERIES OCEANOGRAPHY
(2021)
Article
Fisheries
Donghyun Hong, Gea-Jae Joo, Eunsong Jung, Jeong-Soo Gim, Ki Baik Seong, Doo-Ho Kim, Maurice J. M. Lineman, Hyun-Woo Kim, Hyunbin Jo
Summary: This study analyzed the spatial distribution and morphological characteristics of chum salmon migrating to South Korea using the length-weight relationship. The research discovered a trend of less migration in the southern part of South Korea for all individuals migrating to South Korea. The weight ratio of males/females was also significantly different. The catch was negatively correlated with distance traveled and temperature, and positively correlated with pH, dissolved oxygen, distance, and female ratio.
Article
Environmental Sciences
Feng Lin, Lucie Baillon, Valerie S. Langlois, Christopher J. Kennedy
Summary: The study found that exposure to diluted bitumen resulted in higher mortality and reduced growth in pink salmon under high temperature, low temperature, and high salinity environments. Additionally, exposure affected the biochemical levels and whole organism of fish, with effects exacerbated by environmental factors such as temperature and salinity.
MARINE ENVIRONMENTAL RESEARCH
(2021)
Article
Geochemistry & Geophysics
Jilong Wang, Yongwen Gao, Wei Liu, Hongyan Zhang, David L. Dettman
Summary: Stable isotope analysis of chum salmon otoliths in China revealed the presence of two distinct spawning populations or stocks based on delta O-18 values, indicating anadromous behavior similar to other populations worldwide.
APPLIED GEOCHEMISTRY
(2021)
Article
Fisheries
Kenji Minami, Hokuto Shirakawa, Yohei Kawauchi, Huamei Shao, Makoto Tomiyasu, Yuka Iwahara, Yuichi Tsuda, Hideo Takahara, Yanhui Zhu, Kazushi Miyashita
Summary: This study clarified the target strength of young chum salmon at different fork lengths, enabling the use of acoustic methods for biomass estimation.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Environmental Sciences
Subrata Kumar Ghosh, Marty Kwok-Shing Wong, Susumu Hyodo, Shuji Goto, Koji Hamasaki
Summary: This study investigated the effects of temperature on the bacterial community structure and diversity of temperate salmon in the Pacific. The results showed that temperature changes disrupted the balance of gut and skin microbiota, potentially affecting host immunity. Temperature also influenced the assembly processes of microbial communities, which may disrupt the equilibrium of the microbiota.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Fisheries
Masatoshi Ban, Hiromi Itou, Ayumi Nakashima, Iwao Sada, Shuuich Toda, Manabu Kagaya, Yoshinobu Hirama
Summary: This study investigated the effects of water temperature and salinity on the early development of chum salmon. The results showed that constant temperatures of 4 and 16 degrees Celsius, as well as salinities exceeding 1.0 psu during fertilization, can interfere with the normal early development of chum salmon. To increase survival rates, fertilization with groundwater and hardening of the egg envelope can be effective measures.
Article
Fisheries
Michal E. Skora, John Iwan Jones, Alan F. Youngson, Sean Robertson, Alan Wells, Rasmus B. Lauridsen, Gordon H. Copp
Summary: In spring 2022, pink salmon smolts were found in the UK, specifically in the Rivers Thurso and Oykel in Scotland. This marks the first observation of O. gorbuscha smolts in Europe outside of Scandinavia and the Kola Peninsula, suggesting the potential for the establishment of a pink salmon population in Great Britain.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Fisheries
W. I. Atlas, K. L. Wilson, C. K. Whitney, J. E. Moody, C. N. Service, M. Reid, M. R. Sloat
Summary: In recent decades, chum salmon on the Central and North Coasts of British Columbia have experienced declining abundance, with only a few populations remaining stable. The Bella Coola enhanced chum population has shown an increasing trend, but with significant variation in run sizes. Given concerns about the long-term health of chum salmon and their supporting ecosystems, commercial fisheries in the region have been closed.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Samuel A. May, Kyle R. Shedd, Peter S. Rand, Peter A. H. Westley
Summary: This study investigates the spatial scale and mechanisms driving homing in pink salmon in Prince William Sound, Alaska. The findings challenge the traditional view that pink salmon populations are genetically and phenotypically homogenous and have important implications for rates of inbreeding, local adaptation, and gene flow within populations.
Article
Environmental Sciences
Yuxiao Gou, Tomihiko Higuchi, Yuki Iino, Tsuyoshi Nagasaka, Yuichi Shimizu, Kotaro Shirai, Takashi Kitagawa
Summary: This study determined the oxygen isotope fractionation equation for chum salmon and found that both oxygen and carbon isotopes deplete simultaneously in lower temperature settings.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Food Science & Technology
Hong-Fang Liu, Xiao-Wen Pan, Hua-Qiang Li, Xiao-Nan Zhang, Xin-Huai Zhao
Summary: A gelatin hydrolysate with a hydrolysis degree of 13.7% was generated using chum salmon skin gelatin and papain-catalyzed enzymatic hydrolysis. The gelatin hydrolysate contained four abundant amino acids, namely Ala, Gly, Pro, and 4-Hyp, which accounted for 2/3 of the total measured amino acids. The hydrolysate showed an in vitro antiapoptotic effect on etoposide-stimulated osteoblasts via mitochondrial-mediated JNKK/JNK(1,3)/Bax downregulation.
Article
Fisheries
I. I. Gordeev, L. Balabanova, T. A. Suvorova, D. Mikryakov
Summary: Lymphocytes dominate among leukocytes in the peripheral blood of pink salmon and chum salmon during their marine period. Both species lack eosinophils, while basophils are also absent in pink salmon. The proportion of segmented neutrophils and the size of lymphocytes, monocytes, and stab neutrophils are lower in chum salmon compared to pink salmon.
JOURNAL OF ICHTHYOLOGY
(2022)
Article
Fisheries
Michal E. Skora, Guoni Guobergsson, Gordon H. Copp, J. Iwan Jones
Summary: In mid-May 2022, pink salmon smolts were found in Icelandic rivers, providing the first evidence of successful spawning and freshwater phase completion in those rivers. This discovery is significant as it marks the westernmost record of O. gorbuscha smolts in Europe, surpassing Russia, Norway, and the UK. The presence of these smolts originating from Iceland may potentially contribute to the recruitment and establishment of a self-sustaining population of this species in the North Atlantic.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Fisheries
N. Sergeenko, E. A. Ustimenko, M. G. Eliseikina, A. D. Kuhlevskiy, E. Bochkova, T. Ryazanova
DISEASES OF AQUATIC ORGANISMS
(2020)
Article
Genetics & Heredity
Alla G. Oleinik, Lubov A. Skurikhina, Andrey D. Kukhlevsky, Alexander A. Semenchenko
MITOCHONDRIAL DNA PART B-RESOURCES
(2020)
Article
Biodiversity Conservation
Alla G. Oleinik, Lubov A. Skurikhina, Andrey D. Kukhlevsky, Alexander A. Semenchenko
Summary: Sequencing of the complete mitochondrial genomes of Boganida charr and smallmouth charr revealed their close phylogenetic relationship with Taranetz charr, suggesting a common ancestor. It is hypothesized that the origin of Boganida charr and smallmouth charr may result from a double invasion of the lake by ancestral lineages of Taranetz charr during postglacial periods.
Article
Microbiology
Marina G. Eliseikina, Irina A. Beleneva, Andrey D. Kukhlevsky, Ekaterina Shamshurina
Summary: A cultivated form of bacteria, identified as Pseudoalteromonas piscicida, was isolated from the hemolymph of the bivalve mollusk Modiolus kurilensis. Strain 2202 exhibits antimicrobial activity against certain pathogens and selective toxicity towards larvae of various invertebrates, suggesting its potential applications in aquaculture as a probiotic and source of antimicrobial substances. The behavior of strain 2202 as a predator-like facultative predator should be considered when exploring its biotechnological potential.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Zoology
T. Ryazanova, M. G. Eliseikina, A. D. Kukhlevsky
Summary: A parasitic dinoflagellate of the genus Hematodinium was found in three species of crabs off the Pacific coast of Kamchatka: red king crab Paralithodes camtschaticus, tanner crab Chionoecetes bairdi, and spiny king crab Paralithodes brevipes. The genetic analysis showed that the pathogen infecting these crabs was similar to Hematodinium sp. found in many crustaceans in the Northern Hemisphere. The prevalence of infection was 0.2% for tanner crabs and 2.7% for red king crabs, with similarities in macroscopic and microscopic signs of the pathology.
JOURNAL OF INVERTEBRATE PATHOLOGY
(2021)
Article
Microbiology
Olga Nedashkovskaya, Andrey D. Kukhlevskiy, Song-Gun Kim, Nadezhda Y. Otstavnykh, Natalia Zhukova, Marina P. Isaeva
Summary: A novel yellow-orange-pigmented bacterium, designated Aureibaculum algae sp. nov., was isolated from the red alga Ahnfeltia tobuchiensis, and it belongs to the family Flavobacteriaceae, phylum Bacteroidetes.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Evolutionary Biology
Alla G. Oleinik, Evgeniia Bondar, Andrey D. Kukhlevsky, Lubov A. Skurikhina, Natalia E. Kovpak
Summary: Genetic analysis revealed that charrs from Lake Grand are closely related to the Bering lineage and historical mtDNA introgression occurred from S. malma malma to S. taranetzi. Postglacial secondary contact between representatives of the Arctic and Bering lineages was observed along the Sea of Okhotsk coast, with past hybridization in Lake Grand.
JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH
(2021)
Article
Genetics & Heredity
Alla G. Oleinik, Andrey D. Kukhlevsky, Lubov A. Skurikhina
Summary: The complete mitochondrial genomes of two individuals of charr Salvelinus alpinus erythrinus from Arctic Canada were studied. The results show a low difference between the two genomes, indicating the phylogenetic closeness of S. alpinus erythrinus and Salvelinus sp. 4 from Lake Nachikinskoe, Kamchatka, and their common ancestry.
MITOCHONDRIAL DNA PART B-RESOURCES
(2022)
Article
Genetics & Heredity
Alla G. Oleinik, Andrey D. Kukhlevsky, Lubov A. Skurikhina
Summary: The complete mitochondrial genomes of three individuals of the endemic charr Salvelinus sp. 4 from Lake Nachikinskoe (Kamchatka, Russia) were sequenced, and the low level of sequence divergence between Salvelinus sp. 4 and GenBank Salvelinus taranetzi genomes suggests recent divergence and a common ancestor. These findings have significant implications for resolving the taxonomic status of endemic charr in the genus Salvelinus.
MITOCHONDRIAL DNA PART B-RESOURCES
(2022)
Article
Marine & Freshwater Biology
A. G. Oleinik, A. D. Kukhlevsky, L. A. Skurikhina
Summary: A comparative analysis revealed the close relationships between the endemic charr from Lake Nachikinskoe and closely related charrs from Asia and North America. The charr from Lake Nachikinskoe is confirmed to be an isolated population of the Taranetz charr, representing the Arctic phylogenetic group.
RUSSIAN JOURNAL OF MARINE BIOLOGY
(2022)
Article
Microbiology
Olga I. Nedashkovskaya, Nadezhda Y. Otstavnykh, Song-Gun Kim, Andrey D. Kukhlevskiy, Natalia V. Zhukova, Marina P. Isaeva
Summary: A novel Gram-staining negative, strictly aerobic, rod-shaped, and non-motile bacterium, Algicella marina, was isolated from the red alga Tichocarpus crinitus. It belongs to the family Rhodobacteraceae, the order Rhodobacterales, the class Alphaproteobacteria, and the phylum Pseudomonadota.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
I. A. Beleneva, U. Kharchenko, A. D. Kukhlevsky, A. Boroda, N. Izotov, A. S. Gnedenkov, V. S. Egorkin
Summary: Selenium and tellurium nanoparticles were synthesized using green technology, and were found to possess antimicrobial, antifouling, and cytotoxic activities. Moreover, their use in coatings can reduce the environmental pressure.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2022)
Article
Oceanography
N. P. Sanamyan, K. E. Sanamyan, A. D. Kukhlevskiy, T. B. Morozov, S. V. Galkin, S. I. Kiyashko, V. V. Mordukhovich
Summary: Two species of sea anemones, Sagartiogeton californicus and Sagartiogeton rufus sp. nov., were found in the reducing environments of the Bering Sea. The former is abundant in both methane seep sites and the background, as well as in hydrothermal vents on the Piip Volcano, while the latter forms crowded settlements in hydrothermal vent areas on the Northern summit of the same volcano. The taxonomy of Sagartiogeton and related genera was discussed.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2023)
Article
Zoology
T. V. Ryazanova, M. G. Eliseikina, A. D. Kukhlevsky
Summary: Milky hemolymph syndrome (MHS) caused by a bacilliform virus (BV) was found in tanner crab Chionoecetes bairdi in Kamchatka. The disease leads to hypertrophy of cells and the presence of two types of virus particles. It is structurally similar to CoBV found in Chionoecetes opilio.
JOURNAL OF INVERTEBRATE PATHOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Alla G. G. Oleinik, Andrey D. D. Kukhlevsky, Lubov A. A. Skurikhina, Elena A. A. Shubina
Summary: This study sequenced and compared the mitochondrial genomes of three narrow-ranged, endemic charr species. The results showed similarity in genome length and high AT content, suggesting the possible reclassification of one of the species.
MOLECULAR BIOLOGY REPORTS
(2023)