Energy allocation strategy of skipjack tuna Katsuwonus pelamis during their reproductive cycle
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The lipid composition of somatic and reproductive tissues was determined for female skipjack tuna Katsuwonus pelamis caught in the western Indian Ocean between latitude 10° N and 20° S and longitude 40° and 70° E. The highest total lipid (TL) contents were in the liver and gonads, with white muscle levels approximately three-fold lower. Three lipid classes dominated: triacylglycerols (TAG), sterol esters and wax esters (SE-WE) and phospholipids (PL). Collectively, these accounted for between 70 and 80% of TLs. Changes in lipid concentrations were evaluated over the maturation cycle. Immature fish had the lowest gonad and liver TL levels; concentrations of TL, TAG, SE-WE and PL accumulated from immature to mature (spawning-capable) phase, reflecting sustained vitellogenic activity of the liver and a transfer of lipids to developing oocytes from the onset of vitellogenesis. Gonado-somatic and hepato-somatic indices were positively correlated with each other and positively related to TL in the gonads and liver. Fulton's condition index and lipid concentrations in muscle did not vary significantly over the maturation cycle; fat content in the main storage tissues was undepleted as the ovary developed. Hence, K. pelamis apparently supports reproduction directly from food intake over the breeding season. In the gonads, reserve lipids (SE-WE and TAG) and sterols were related to batch fecundity but this was not the case for somatic and hepatic tissues. These results suggest that K. p…
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Female skipjack tuna follow an income breeder strategy, obtaining required energy directly from food intake rather than from accumulated energy reserves.
“In terms of reproductive strategy, female skipjack tuna follow what has been described as an income breeder strategy, that is, required energy is obtained directly from food intake rather than from accumulated energy reserves (Grande et al., 2016).”
From A review of the fisheries, life history and stock structure of tropical tuna (skipjack Katsuwonus pelamis, yellowfin Thunnus albacares and bigeye Thunnus obesus) in the Indian Ocean (2021) · cites this paper as Grande et al., 2016
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Schaefer, K. M. (2001) · Fish Physiology · doi:10.1016/s1546-5098(01)19007-2 · Cited by 280 · see citing works
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(2021) · Advances in Marine Biology · doi:10.1016/bs.amb.2020.09.002 · Cited by 53 · see citing works
Self-citationAfrican desert dust influences migrations and fisheries of the Atlantic skipjack-tuna
Rodríguez, S., Riera, R., Fonteneau, A., Alonso-Pérez, S., & López-Darias, J. (2023) · Atmospheric Environment · doi:10.1016/j.atmosenv.2023.120022 · Cited by 23 · see citing works
“This tuna supports its reproductive activity directly and permanently from its food intake over the breeding season, thus utilizing an income breeding strategy (Grande et al., 2016).”
- Authors
- Grande, M., Murua, H., Zudaire, I., Arsenault‐Pernet, E. J., Pernet, F., & Bodin, N.
- Affiliations
- AZTI (ES)
- Institut de Recherche pour le Développement (IRD) UMR 248 MARBEC Avenue Jean Monnet BP 171 Sète France
- Ifremer (FR)
- Institut de Recherche pour le Développement (FR)
- Corresponding author
- Grande, M.
- Venue
- Journal of Fish Biology
- Publisher
- Wiley
- Published
- 2016-10-11
- Volume
- 89
- Issue
- 5
- Pages
- 2434-2448
- ISSN
- 0022-1112 (ISSN-L)
- 1095-8649
- OpenAlex
- W2537549806
- Cited by
- 30
- References
- 1
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 7 · 2020: 3 · 2019: 6 · 2018: 3 · 2017: 2
- FWCI
- 3.34
- Type
- journal article
- Language
- en
- Open access
- green
- dspace.azti.es
- Licence
- Locations
- Journal of Fish Biology (publishedVersion)
- PubMed (publishedVersion)
- HAL (submittedVersion)
- AZTI Institutional Repository (submittedVersion, cc-by-nc-sa)
- Funders
- Department of Agriculture, Australian Government
- Agence Nationale de la Recherche (ANR JSV7 00701)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Physiology › Reproductive biology and impacts on aquatic species
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
- Physical Sciences › Environmental Science › Global and Planetary Change › Marine and fisheries research
- Keywords
- skipjack tuna, energy allocation, reproductive cycle, lipid composition, vitellogenesis, gonadal maturation, liver lipids, triglycerides, sterol esters, wax esters, phospholipids, income breeding, batch fecundity, gonadosomatic index, hepatosomatic index, Western Indian Ocean
- MeSH terms
- Animals, Energy Metabolism, Female, Fertility, Lipids, Liver, Oogenesis, Ovary, Reproduction, Seasons, Tuna, Indian Ocean, Lipid Metabolism
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