Environmental Biology of Fishes

, Volume 63, Issue 1, pp 27–39 | Cite as

Temporal and Spatial Trends in Spawning Aggregations of Camouflage Grouper, Epinephelus Polyphekadion, in Pohnpei, Micronesia

  • Kevin L. Rhodes
  • Yvonne Sadovy
Article

Abstract

The aims of this investigation were to document the temporal and spatial dynamics of aggregated camouflage grouper, Epinephelus polyphekadion in Pohnpei, Micronesia, and to assess seasonal and daily patterns of spawning and reproductive behavior. Camouflage grouper aggregated and spawned adjacent to the Kehpara Marine Sanctuary (KMS), Pohnpei, Micronesia, during two consecutive months in 1998 and 1999. A combination of gonadosomatic indices, oocyte diameter analysis, and histological evidence confirmed that camouflage grouper spawned 1–2 days prior to full moon over an 8–9 h period after dusk in each of the four study months. Males entered the site approximately 7 days prior to females and color variations were frequently observed. Significant differences were detected in mean size between the sexes. A series of management initiatives was initiated by the government in the 1980s to reduce fishing during aggregation periods, such as a March–April grouper sales ban, but these were largely ineffective. Following the 1998–1999 survey, several recommendations were made to halt aggregation fishing, including a commercial and subsistence catch and sales ban during spawning months, and the extension of the KMS to incorporate two additional grouper aggregations directly adjacent to it.

reproduction Serranidae coloration behavior management 

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References cited

  1. Abu-Hakima, R. 1987. Aspects of the reproductive biology of the grouper, Epinephelus tauvina (Forskal), in Kuwaiti waters. J. Fish Biol. 30: 213–222.Google Scholar
  2. Al-Thobaity, S. & C.M. James. 1996. Developments in grouper culture in Saudi Arabia. INFOFISH International 1/96: 22–29.Google Scholar
  3. Aguilar-Perera, A. & W. Aguilar-Davila. 1996. A spawning aggregation of Nassau grouper Epinephelus striatus (Pisces: Serranidae) in the Mexican Caribbean. Env. Biol. Fish. 45: 35–46.Google Scholar
  4. Barlow, G.W. 1981. Patterns of parental investment, dispersal and size among coral reef-fishes. Env. Biol. Fish. 6: 65–85.Google Scholar
  5. Beets, J. & A. Friedlander. 1992. Stock analysis and management strategies for the red hind, Epinephelus guttatus, in the U.S. Virgin Islands. Proc. Gulf Carib. Fish Inst. 42: 66–80.Google Scholar
  6. Beets, J. & A. Friedlander. 1998. Evaluation of a conservation strategy: a spawning aggregation closure for red hind, Epinephelus guttatus, in the U.S. Virgin Islands. Env. Biol. Fish. 55: 91–98.Google Scholar
  7. Burnett-Herkes, J. 1975. Contribution to the biology of the red hind, Epinephelus guttatus, a commercially important serranid fish from the tropical western Atlantic. Ph.D. Dissertation, University of Miami, Coral Gables. 154 pp.Google Scholar
  8. Carter, H.J., G.J. Marrow & V. Pryor. 1994. Aspects of the ecology and reproduction of Nassau grouper, Epinephelus striatus, off the coast of Belize, Central America. Proc. Gulf Carib. Fish. Inst. 43: 65–111.Google Scholar
  9. Chapman, R.W., G.R. Sedberry, C.C. Koenig & B.E. Eleby. 1999. Stock identification of gag, Mycteroperca microlepis, along the southeast coast of the United States. Mar. Biotechnol. 1: 137–147.Google Scholar
  10. Coleman, F.C., C.C. Koenig & L.A. Collins. 1996. Reproductive styles of shallow-water grouper (Pisces: Serranidae) in the eastern Gulf of Mexico and the consequences of fishing spawning aggregations. Env. Biol. Fish. 47: 129–141.Google Scholar
  11. Colin, P.L. 1992. Reproduction of the Nassau grouper, Epinephelus striatus, (Pisces: Serranidae) and its relationship to environmental condition. Env. Biol. Fish. 34: 357–377.Google Scholar
  12. Colin, P.L., D.Y. Shapiro & D. Weiler. 1987. Aspects of the reproduction of two groupers, Epinephelus guttatus and E. striatus in the West Indies. Bull. Mar. Sci. 40: 220–230.Google Scholar
  13. Colin, P.L. & I.E. Clavijo. 1988. Spawning activity by species producing pelagic eggs on a shelf edge coral reef, southwestern Puerto Rico. Bull. Mar. Sci. 43: 249–279.Google Scholar
  14. Domeier, M.L. & P.L. Colin. 1997. Tropical reef fish spawning aggregations: defined and reviewed. Bull. Mar. Sci. 60: 698–726.Google Scholar
  15. Fuchs, J. & L. Debas. 1988. Reproduction of grouper Epinephelus microdon in French Polynesia. Natural cycle characteristics and first results in captivity. World Aquacult. Soc. 19(1): 14A.Google Scholar
  16. Gilmore, R.G. & R.S. Jones. 1992. Color variation and associated behavior in the epinepheline groupers, Mycteroperca microlepis (Goode & Bean) and M. phenax (Jordan & Swain). Bull. Mar. Sci. 51: 83–103.Google Scholar
  17. Johannes, R.E. 1978. Reproductive strategies of coastal marine fishes in the tropics. Env. Biol. Fish. 3: 65–84.Google Scholar
  18. Johannes, R.E. 1989. Spawning aggregations of the grouper, Plectropomus areolatus (Ruppell) in the Solomon Islands. pp. 751–755. In: Proceedings of the 6th International Coral Reef Symposium, 1988, Vol. 2, Townsville.Google Scholar
  19. Johannes, R.E. 1997. Grouper spawning aggregations need protection. pp. 13–14. In: R.E. Johannes (ed.) SPC Information Bulletin: Live Reef Fish No. 3, December 1997.Google Scholar
  20. Johannes, R.E. & M. Lam. 1999. The live reef food fish trade in the Solomon Islands. SPC Live Reef Fish Information Bulletin No. 5: 8–15.Google Scholar
  21. Johannes, R.E., L. Squire, T. Graham, Y. Sadovy & H. Renguul. 1999. Spawning aggregations of groupers (Serranidae) in Palau. The Nature Conservancy Marine Research Series Publication No. 1, August 1999. 144 pp.Google Scholar
  22. Koenig, C.C., F.C. Coleman, L.A. Collins, Y. Sadovy & P.L. Colin. 1996. Reproduction in gag, Mycteroperca microlepis (Pisces: Serranidae) in the eastern Gulf of Mexico and the consequences of fishing spawning aggregations. pp. 307–323. In: F. Arreuguin-Sanchez, J.L. Munro, M.C. Balgos & D. Pauly (ed.) Biology and Culture of Tropical Groupers and Snappers, ICLARM Conference Proceedings 48, ICLARM, Manila.Google Scholar
  23. Lobel, P.S. 1991. Mating strategies of coastal marine fishes. Oceanus 1991: 19–26.Google Scholar
  24. Loubens, G. 1980. Biologie de quelques espèces de poissons di lagon neo-caledonien. II. Sexualite et reproduction. Cahiers de l'Indo-pacifique V. 2(1): 41–72.Google Scholar
  25. Luckhurst, B.E. 1996. Trends in commercial fishery landings of groupers and snappers in Bermuda from 1975 to 1992 and associated fishery management issues. pp. 277–288. In: F. Arreguin-Sanchez, J.L. Munro, M.C. Balgos & D. Pauly (ed.) Biology, Fisheries and Culture of Tropical Groupers and Snappers, ICLARM Conf. Proc. 489.Google Scholar
  26. Luckhurst, B.E. 1998. Site fidelity and return migration of tagged red hind (Epinephelus guttatus) to a spawning aggregation site in Bermuda. Proc. Gulf and Carib. Fish. Inst. 50: 750–763.Google Scholar
  27. Passfield, K. 1996. Notes on grouper spawning aggregations in Tongareva, Cook Islands. p. 20. In: R.E. Johannes (ed.) SPC Traditional Marine Resource Management and Knowledge Information Bulletin No. 7, June 1995.Google Scholar
  28. Robertson, D.R. 1990. Differences in the seasonalities of spawning and recruitment of some small neotropical reef fish. J. Exp. Mar. Biol. Ecol. 144: 49–62.Google Scholar
  29. Sadovy, Y. 1994. Grouper stocks of the western central Atlantic: the need for management and management needs. Proc. Gulf Carib. Fish. Inst. 43: 43–65.Google Scholar
  30. Sadovy, Y. 1996. Reproduction of reef fishery species. pp. 15–60. In: N.V.C. Polunin & C.M. Roberts (ed.) Reef Fisheries, Chapman & Hall, London.Google Scholar
  31. Sadovy, Y., A. Rosario & A. Roman. 1994. Reproduction in an aggregating grouper the red hind, Epinephelus guttatus. Env. Biol. Fish. 41: 269–286.Google Scholar
  32. Sadovy, Y. & A-M Eklund. 1999. Synopsis of biological data on the Nassau grouper, Epinephelus striatus (Bloch, 1792), and the jewfish, E. itajara (Lichtenstein, 1822). NOAA Technical Report NMFS 146. 65 pp.Google Scholar
  33. Samoilys, M.A. 1997. Periodicity of spawning aggregations of coral trout (Plectropomus leopardus) on the Great Barrier Reef. Mar. Ecol. Prog. Ser. 160: 149–159.Google Scholar
  34. Samoilys, M.A. & L. Squire. 1994. Preliminary observations on the spawning behavior of coral trout, Plectropomus leopardus (Pisces: Serranidae). Bull. Mar. Sci. 54: 332–342.Google Scholar
  35. Shapiro, D.Y. 1987. Reproduction in groupers. pp. 295–327. In: J.J. Polovina & S. Ralston (ed.) Tropical Snappers and Groupers: Biology and Fisheries Management, Westview Press, Boulder.Google Scholar
  36. Shapiro, D.Y., Y. Sadovy & M.A. McGhee. 1993a. Size, composition, and spatial structure of the annual spawning aggregation of the red hind, Epinephelus guttatus (Pisces: Serranidae). Copeia 1993: 399–406.Google Scholar
  37. Shapiro, D.Y., Y. Sadovy & M.A. McGhee. 1993b. Periodicity of sex change and reproduction in the red hind, Epinephelus guttatus, a protogynous grouper. Bull. Mar. Sci. 53: 1151–1162.Google Scholar
  38. Smith, C.L. 1972. A spawning aggregation of Nassau grouper, Epinephelus striatus (Bloch). Trans. Amer. Fish. Soc. 101: 257–261.Google Scholar
  39. Smith, P.J., R.I.C.C. Francis & M. McVeagh. 1991. Loss of genetic diversity due to fishing pressure. Fish. Res. 10: 309–316.Google Scholar
  40. Thresher, R.E. 1984. Reproduction in reef fishes. T.F.H. Publications, Neptune City. 399 pp.Google Scholar
  41. Tucker, J.W. Jr., P.G. Bush & S.T. Slaybaugh. 1993. Reproductive patterns of Cayman Islands Nassau grouper (Epinephelus striatus) populations. Bull. Mar. Sci. 52: 961–969.Google Scholar
  42. Vincent A. & Y. Sadovy. 1998. Reproductive ecology in the conservation and management of fishes. pp. 209–245. In: T. Caro (ed.) Behavioral Ecology and Conservation Biology, Oxford University Press, New York.Google Scholar
  43. Zar, J.H. 1984. Biostatistical analysis, 2nd ed. Prentice-Hall, Inc., Engelwood Cliffs. 718 pp.Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Kevin L. Rhodes
    • 1
  • Yvonne Sadovy
    • 1
  1. 1.Department of Ecology and BiodiversityThe University of Hong KongHong KongChina

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