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Sexual differences in the occurrence of Pacific bluefin tuna Thunnus orientalis in the spawning ground, Yaeyama Islands

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Abstract

Pacific bluefin tuna Thunnus orientalis occur in the south-western North Pacific spawning ground from April to July. All females and males occurring there are thought to be involved in the spawning event, but details of their occurrence are not well understood. A daily fishing port survey was conducted at Ishigaki Island (24°21’N, 124°09’E), Yaeyama Islands, during the entire fishing season (April to July) between 2009 and 2014 to assess sexual differences in the timing of occurrence and physiological condition for reproduction of Pacific bluefin tuna. In total, males (n = 566) outnumbered females (481, chi-squared test, P < 0.01) and had a larger body size (mean ± SD = 229 ± 18 cm fork length in male, 220 ± 18 cm in female, Welch’s t-test, P < 0.001). Estimated ages were not different between sexes; 6–25 years for females and 6–24 years for males. Males tended to occur earlier in the spawning ground (median date = 20 May) than females (24 May, Mann–Whitney U-test, P < 0.05). Gonadosomatic indices of both sexes increased from mid April, beginning of the fishing season, had higher values in late May to early-mid June, and then decreased. Fat body index and condition factor of both sexes decreased during the fishing season, and loss of body weight was more prominent in females. Sexual differences in the occurrence in the spawning ground are thought to relate with the reproductive activity and the condition factor.

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References

  • Abascal FJ, Megina C, Medina A (2004) Testicular development in migrant and spawning bluefin tuna (Thunnus thynnus (L.)) from the eastern Atlantic and Mediterranean. Fish Bull 102:407–417

    Google Scholar 

  • Aranda G, Abascal FJ, Varela JL, Medina A (2013) Spawning behaviour and post-spawning migration patterns of Atlantic bluefin tuna (Thunnus thynnus) ascertained from satellite archival tags. PLoS ONE 8:e76445. doi:10.1371/journal.pone.0076445

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Ashida H, Suzuki N, Tanabe T, Suzuki N, Aonuma Y (2015) Reproductive condition, batch fecundity, and spawning fraction of large Pacific bluefin tuna Thunnus orientalis landed at Ishigaki Island, Okinawa, Japan. Environ Biol Fish 98:1173–1183. doi:10.1007/s10641-014-0350-8

    Article  Google Scholar 

  • Baglin RE Jr (1982) Reproductive biology of western Atlantic bluefin tuna. Fish Bull 80:121–134

    Google Scholar 

  • Bayliff WH (1994) A review of the biology and fisheries for northern bluefin tuna, Thunnus thynnus, in the Pacific Ocean. FAO Fish Tech Pap 336:244–295

    Google Scholar 

  • Bolger T, Connolly P (1989) The selection of suitable indices for the measurement and analysis of fish condition. J Fish Biol 34:171–182

    Article  Google Scholar 

  • Chen KS, Crone P, Hsu CC (2006) Reproductive biology of female Pacific bluefin tuna Thunnus orientalis from south-western North Pacific Ocean. Fish Sci 72:985–994

    Article  CAS  Google Scholar 

  • Chen KS, Shimose T, Tanabe T, Chen CY, Hsu CC (2012) Age and growth of albacore Thunnus alalunga in the North Pacific Ocean. J Fish Biol 80:2328–2344. doi:10.1111/j.1095-8649.2012.03292.x

    Article  PubMed  Google Scholar 

  • Farley JH, Davis TLO (1998) Reproductive dynamics of southern bluefin tuna, Thunnus maccoyii. Fish Bull 96:223–236

    Google Scholar 

  • Farley JH, Clear NP, Leroy B, Davis TLO, McPherson G (2006) Age, growth and preliminary estimates of maturity of bigeye tuna, Thunnus obesus, in the Australian region. Mar Freshw Res 57:713–724

    Article  Google Scholar 

  • Farley JH, Davis TLO, Gunn JS, Clear NP, Preece AL (2007) Demographic patterns of southern bluefin tuna, Thunnus maccoyii, as inferred from direct age data. Fish Res 83:151–161. doi:10.1016/j.fishres.2006.09.006

    Article  Google Scholar 

  • Goldstein J, Heppell S, Cooper A, Brault S, Lutcavage M (2007) Reproductive status and body condition of Atlantic bluefin tuna in the Gulf of Maine, 2000–2002. Mar Biol 151:2063–2075. doi:10.1007/s00227-007-0638-8

    Article  Google Scholar 

  • Gunn JS, Clear NP, Carter TI, Rees AJ, Stanley CA, Farley JH, Kalish JM (2008) Age and growth in southern bluefin tuna, Thunnus maccoyii (Castelnau): direct estimation from otoliths, scales and vertebrae. Fish Res 92:207–220. doi:10.1016/j.fishres.2008.01.018

    Article  Google Scholar 

  • Hsu CC, Liu HC, Wu CL, Huang ST, Liao HK (2000) New information on age composition and length–weight relationship of bluefin tuna, Thunnus thynnus, in the southwestern North Pacific. Fish Sci 66:485–493

    Article  CAS  Google Scholar 

  • Hurley PCF, Iles TD (1983) Age and growth estimation of Atlantic bluefin tuna, Thunnus thynnus, using otoliths. In: Prince ED, Pulos LM (eds) Proceedings of the International Workshop on Age Determination of Oceanic Pelagic Fishes: Tunas, Billfishes, and Sharks. National Marine Fisheries Service and U.S. Department of Commerce, Miami, FL, pp. 71–75

    Google Scholar 

  • Itoh T (2009) Contributions of different spawning seasons to the stock of Pacific bluefin tuna Thunnus orientalis estimated from otolith daily increments and catch-at-length data of age-0 fish. Nippon Suisan Gakkaishi 75:412–418

    Article  Google Scholar 

  • Knapp JM, Aranda G, Medina A, Lutcavage M (2014) Comparative assessment of the reproductive status of female Atlantic bluefin tuna from the Gulf of Mexico and the Mediterranean Sea. PLoS ONE 9:e98233. doi:10.1371/journal.pone.0098233

  • Miyashita M, Murata O, Sawada T, Okada T, Kubo Y, Seoka M, Kumai H (2000) Maturation and spawning of cultured bluefin tuna Thunnus thynnus. Suisanzoshoku 48:475–488

    Google Scholar 

  • Morgan MJ, Trippel EA (1996) Skewed sex ratios in spawning shoals of Atlantic cod (Gadus morhua). ICES J Mar Sci 53:820–826

    Article  Google Scholar 

  • Nanami A, Kawabata Y, Sato T, Yamaguchi T, Kawabe R, Soyano K (2014) Spawning migration and returning behavior of white-streaked grouper Epinephelus ongus determined by acoustic telemetry. Mar Biol 161:669–680. doi:10.1007/s00227-013-2369-3

    Article  Google Scholar 

  • Nishikawa Y, Honma M, Ueyanagi S, Kikawa S (1985) Average distribution of larvae of oceanic species of scombrid fishes, 1956–1981. Far Seas Fish Res Lab S Ser 12:1–99

    Google Scholar 

  • Okochi Y, Abe O, Tanaka S, Ishihara Y, Shimizu A (2016) Reproductive biology of female Pacific bluefin tuna, Thunnus orientalis, in the Sea of Japan. Fish Res 174:30–39. doi:10.1016/j.fishres.2015.08.020

    Article  Google Scholar 

  • Rajasilta M (1992) Relationship between food, fat, sexual-maturation, and spawning time of Baltic herring (Clupea harengus membras) in the Archipelago Sea. Can J Fish Aquat Sci 49:644–654

    Article  Google Scholar 

  • Rhodes KL, McIlwain J, Joseph E, Nemeth RS (2012) Reproductive movement, residency and fisheries vulnerability of brown-marbled grouper, Epinephelus fuscoguttatus (Forsskål, 1775). Coral Reefs 31:443–453. doi:10.1007/s00338-012-0875-2

    Article  Google Scholar 

  • Robichaud D, Rose GA (2003) Sex differences in cod residency on a spawning ground. Fish Res 60:33–43

    Article  Google Scholar 

  • Schaefer KM (1996) Spawning time, frequency, and batch fecundity of yellowfin tuna, Thunnus albacares, near Clipperton Atoll in the eastern Pacific Ocean. Fish Bull 94:98–112

    Google Scholar 

  • Schaefer KM (2001) Reproductive biology of tunas. In: Block BA, Stevens ED (eds) Fish Physiology Vol. 19, Tuna: Physiology, Ecology, and Evolution. Academic Press, London, UK, pp. 225–270

    Google Scholar 

  • Shimose T, Farley JH (2015) Age, growth and reproductive biology of bluefin tunas. In: Kitagawa T, Kimura S (eds) Biology and Ecology of Bluefin Tuna. CRC Press, London, UK, pp. 47–77

    Chapter  Google Scholar 

  • Shimose T, Ishihara T (2015) A manual for age determination of Pacific bluefin tuna Thunnus orientalis. Bull Fish Res Agen 40:1–11

    Google Scholar 

  • Shimose T, Tanabe T, Chen KS, Hsu CC (2009) Age determination and growth of Pacific bluefin tuna, Thunnus orientalis, off Japan and Taiwan. Fish Res 100:134–139. doi:10.1016/j.fishres.2009.06.016

    Article  Google Scholar 

  • Shimose T, Yokawa K, Saito H, Tachihara K (2012) Sexual difference in the migration pattern of blue marlin, Makaira nigricans, related to spawning and feeding activities in the western and Central North Pacific Ocean. Bull Mar Sci 88:231–250. doi:10.5343/bms.2011.1025

    Article  Google Scholar 

  • Ueyanagi S (1969) Observations on the distribution of tuna larvae in the Indo-Pacific Ocean with emphasis on the delineation of spawning areas of albacore, Thunnus alalunga. Bull Far Seas Fish Res Lab 2:177–256

    Google Scholar 

  • Yabe H, Ueyanagi S, Watanabe H (1966) Studies on the early life history of bluefin tuna Thunnus thynnus and on the larva of the southern bluefin tuna T. maccoyii. Rep Nankai Reg Fish Res Lab 23:95–129

    Google Scholar 

Download references

Acknowledgments

Authors are grateful to all of longline and pole-line fishermen and staff of Yaeyama Fisheries Cooperative to help with the port survey. The authors thank C. Norman, H. Ashida, M. Kanaiwa, K. Fujioka, M. Yamauchi, and anonymous reviewers to review and comment on the earlier version of this manuscript. This research was conducted by a grant from the Japan Fisheries Agency.

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Authors and Affiliations

  1. Research Center for Subtropical Fisheries, Seikai National Fisheries Research Institute, Fisheries Research Agency, 148-446, Fukai-Ohta, Ishigaki, Okinawa, 907-0451, Japan

    Tamaki Shimose & Toshiyuki Tanabe

  2. Seikai National Fisheries Research Institute, Fisheries Research Agency, 1551-8 Taira, Nagasaki, 851-2213, Japan

    Yoshimasa Aonuma

  3. National Research Institute of Far Seas Fisheries, Fisheries Research Agency, 5-7-1 Orido, Shizuoka, Shimizu-ku, 424-8633, Japan

    Nobuaki Suzuki

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  1. Tamaki Shimose
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  2. Yoshimasa Aonuma
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  3. Nobuaki Suzuki
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  4. Toshiyuki Tanabe
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Correspondence to Tamaki Shimose.

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Shimose, T., Aonuma, Y., Suzuki, N. et al. Sexual differences in the occurrence of Pacific bluefin tuna Thunnus orientalis in the spawning ground, Yaeyama Islands. Environ Biol Fish 99, 351–360 (2016). https://doi.org/10.1007/s10641-016-0478-9

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  • DOI: https://doi.org/10.1007/s10641-016-0478-9

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