Research output: Contribution to journal › Article › peer-review
Spatial heterogeneity and temporal dynamics of proteindegrading activity and life-history traits in threespine stickleback gasterosteus aculeatus. / Lajus, Dmitry L.; Lysenko, Liudmila A.; Kantserova, Nadezhda P.; Tushina, Ekaterina D.; Ivanova, Tatiana S.; Nemova, Nina N.
In: International Aquatic Research, Vol. 12, No. 3, 09.2020, p. 161-170.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Spatial heterogeneity and temporal dynamics of proteindegrading activity and life-history traits in threespine stickleback gasterosteus aculeatus
AU - Lajus, Dmitry L.
AU - Lysenko, Liudmila A.
AU - Kantserova, Nadezhda P.
AU - Tushina, Ekaterina D.
AU - Ivanova, Tatiana S.
AU - Nemova, Nina N.
N1 - Funding Information: Funding The contribution of LAL, NPK, EDT, and NNN was supported by the budget funding allocated for the theme no. 0218-2019-0076. Participation of DLL and TSI was supported by the Russian Science Foundation (project no. 19-14-00092). Publisher Copyright: © The Author(s) 2020. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/9
Y1 - 2020/9
N2 - The paper studies the spatial heterogeneity and temporal dynamics of life-history traits, parasite invasion, and biochemical variables (e.g., tissue protein content and calpain activity) in adult and juvenile threespine stickleback Gasterosteus aculeatus. Samples were collected on three spawning grounds in Kandalaksha Bay, on the White Sea, located within a few kilometers of each other. These sites featured differences in temperature regime, water exchange, feed organism composition, predation load, aquatic vegetation, and spawner density. Whereas we found no parasite-related or size heterogeneity in adult fish on these grounds at the beginning of the spawning season, muscle protein reserves and protease (calpain) activity patterns in adults showed significant spatial heterogeneity, which increased as spawning progressed and was particularly pronounced in females. Sticklebacks expend much energy during spawning and are worn out by the end of the spawning period. To maintain individual viability, skeletal muscle proteins degrade, and the resulting amino acids are oxidized to produce energy. Protein-degrading calpains play a key role in these processes, and also mediate intense protein metabolism in juvenile stickleback, showing higher values in individuals growing under more favorable conditions. Thus, by studying the heterogeneous life-history traits and biochemical characteristics of adult and juvenile stickleback, we discovered the effects.
AB - The paper studies the spatial heterogeneity and temporal dynamics of life-history traits, parasite invasion, and biochemical variables (e.g., tissue protein content and calpain activity) in adult and juvenile threespine stickleback Gasterosteus aculeatus. Samples were collected on three spawning grounds in Kandalaksha Bay, on the White Sea, located within a few kilometers of each other. These sites featured differences in temperature regime, water exchange, feed organism composition, predation load, aquatic vegetation, and spawner density. Whereas we found no parasite-related or size heterogeneity in adult fish on these grounds at the beginning of the spawning season, muscle protein reserves and protease (calpain) activity patterns in adults showed significant spatial heterogeneity, which increased as spawning progressed and was particularly pronounced in females. Sticklebacks expend much energy during spawning and are worn out by the end of the spawning period. To maintain individual viability, skeletal muscle proteins degrade, and the resulting amino acids are oxidized to produce energy. Protein-degrading calpains play a key role in these processes, and also mediate intense protein metabolism in juvenile stickleback, showing higher values in individuals growing under more favorable conditions. Thus, by studying the heterogeneous life-history traits and biochemical characteristics of adult and juvenile stickleback, we discovered the effects.
KW - Calpain
KW - Gasterosteus aculeatus
KW - Growth
KW - Habitat
KW - Skeletal muscle
KW - Spawning
KW - White Sea
KW - MORTALITY
KW - L.
KW - PRINCIPLE
KW - PROTEASES
KW - SKELETAL-MUSCLE
KW - GROWTH
KW - DEGRADATION
KW - SYSTEMS
UR - http://www.scopus.com/inward/record.url?scp=85092567076&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/b8481c74-723a-342b-956a-847b264a2da5/
U2 - 10.22034/iar.2020.1894323.1019
DO - 10.22034/iar.2020.1894323.1019
M3 - Article
AN - SCOPUS:85092567076
VL - 12
SP - 161
EP - 170
JO - International Aquatic Research
JF - International Aquatic Research
SN - 2008-4935
IS - 3
ER -
ID: 70534376