Marine Biology

, Volume 161, Issue 3, pp 669–680

Spawning migration and returning behavior of white-streaked grouper Epinephelus ongus determined by acoustic telemetry

  • Atsushi Nanami
  • Yuuki Kawabata
  • Taku Sato
  • Tomofumi Yamaguchi
  • Ryo Kawabe
  • Kiyoshi Soyano
Original Paper

DOI: 10.1007/s00227-013-2369-3

Cite this article as:
Nanami, A., Kawabata, Y., Sato, T. et al. Mar Biol (2014) 161: 669. doi:10.1007/s00227-013-2369-3
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Abstract

White-streaked grouper (Epinephelus ongus) is an important fishery target that forms fish spawning aggregations (FSAs) at specific spawning grounds. The aims of the present study were to investigate migration behavior and returning behavior in terms of FSA using acoustic telemetry. Among the 30 specimens tracked, three types of movement pattern were observed: type 1, high site fidelity at the release area before the spawning period, migration to the spawning ground during the spawning period and return to the release area just after the spawning period (17 specimens); type 2, high site fidelity at the release area, disappearance from the area during the spawning period but was not detected at the spawning ground and return to the release area (8 specimens); and type 3, high site fidelity at the release area was observed before, during and after the spawning period (5 specimens). For the 17 specimens that were categorized into type 1, the dates of departure from their release area and the dates of return to the release area of males were, respectively, significantly earlier and later than those of females. The duration between the departure date and the return date (“duration away”) of males was significantly longer than that of females. The duration away tended to be positively related to the condition factor. All 25 specimens that were categorized as type 1 and type 2 showed returning behaviors to the release area.

Supplementary material

227_2013_2369_MOESM1_ESM.pdf (1.7 mb)
Supplementary material 1 (PDF 1779 kb)
227_2013_2369_MOESM2_ESM.pdf (466 kb)
Supplementary material 2 (PDF 465 kb)
227_2013_2369_MOESM3_ESM.pdf (312 kb)
Supplementary material 3 (PDF 312 kb)
227_2013_2369_MOESM4_ESM.pdf (1.3 mb)
Supplementary material 4 (PDF 1344 kb)

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Atsushi Nanami
    • 1
  • Yuuki Kawabata
    • 2
  • Taku Sato
    • 1
  • Tomofumi Yamaguchi
    • 2
  • Ryo Kawabe
    • 2
  • Kiyoshi Soyano
    • 2
  1. 1.Research Center of Sub-tropical Fisheries, Seikai National Fisheries Research InstituteFisheries Research AgencyIshigakiJapan
  2. 2.Institute for East China Sea ResearchNagasaki UniversityNagasakiJapan