Advertisement

Marine Biology

, Volume 126, Issue 2, pp 347–352 | Cite as

Variations in mortality of a coral-reef fish: links with predator abundance

  • S. D. Connell
Article

Abstract

The mortality rates of a pomacentrid Acanthochromis polyacanthus were examined in relation to the abundance of large predatory fish (>200 mm total length, TL) at two spatial scales. Survivorship was negatively related to patterns of predator abundance at a large spatial scale (hundreds of metres) over 3 yr, but not at a small spatial scale (tens of metres) over 2 yr. On the large scale, mortality was consistently greater (14 to 30%) in locations where there were greater numbers of predators, and lower in locations where predators occurred in smaller numbers. Among these locations, spatial differences in rank abundance of surviving juveniles were primarily due to mortality, whereas temporal differences in rank abundance were primarily due to initial juvenile abundance. These data suggest that impacts of large predatory fish were likely to have been greater in space than time and at the large spatial scale than the small spatial scale.

Keywords

Mortality Rate Spatial Scale Temporal Difference Spatial Difference Predatory Fish 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Aldenhoven JM (1986) Local variation in mortality rates and life-expectancy estimates of the coral-reef fish Centropyge bicolor (Pisces: Pomacanthidae). Mar Biol 92: 237–244Google Scholar
  2. Carr MH, Hixon MA (1995) Predation effects on early post-settlement survivorship of coral-reef fishes. Mar Ecol Prog Ser 124: 31–42Google Scholar
  3. Connell SD (1994) The contribution of large predatory fish to the mortality and abundance of juvenile coral reef fishes. Ph.D. thesis. University of Sydney, SydneyGoogle Scholar
  4. Connell SD, Jones GP (1991) The influence of habitat complexity on postrecruitment processes in a temperate reef fish population. J exp mar Biol Ecol 151: 271–294Google Scholar
  5. Doherty PJ, Sale PF (1985) Predation on juvenile coral reef fishes: an exclusion experiment. Coral Reefs 4: 225–234Google Scholar
  6. Eckert GJ (1985) Population studies of labrid fishes on the southern Great Barrier Reef. Ph.D. thesis. The University of Sydney, SydneyGoogle Scholar
  7. Eckert GJ (1987) Estimates of adult and juvenile mortality for labrid fishes at One Tree Reef, Great Barrier Reef. Mar Biol 95: 167–171Google Scholar
  8. Forrester GE (1990) Factors influencing the juvenile demography of a coral reef fish. Ecology 71: 1666–1681Google Scholar
  9. Hixon MA (1991) Predation as a process structuring coral reef fish communities. In: Sale PF (ed) The ecology of fishes on coral reefs. Academic Press, San Diego, pp 475–508Google Scholar
  10. Jones GP (1986) Food availability affects growth in a coral reef fish. Oecologia 70: 136–139Google Scholar
  11. Jones GP (1987) Some interactions between residents and recruits in two coral reef fishes. J exp mar Biol Ecol 114: 169–182Google Scholar
  12. Jones GP (1988) Experimental evaluation of the effects of habitat structure and competitive interactions on the juveniles of two coral reef fishes. J exp mar Biol Ecol 123: 115–126Google Scholar
  13. Jones GP (1991) Postrecruitment processes in the ecology of coral reef fish populations: a multifactorial perspective. In: Sale PF (ed) The ecology of fishes on coral reefs. Academic Press, San Diego, pp 294–328Google Scholar
  14. Kingsford MJ (1992) Spatial and temporal variation in predation on reef fishes by coral trout (Plectropomus leopardus, Serranidae). Coral Reefs 11: 193–198Google Scholar
  15. Mapstone BD (1988) The determination of patterns in the abundance of Pomacentrus moluccensis Bleeker on the southern Great Barrier Reef. Ph.D. thesis. University of Sydney, SydneyGoogle Scholar
  16. Nakazono A (1993) One-parent removal experiment in the school-caring damselfish, Acanthochromis polyacanthus, with preliminary data on reproductive biology. Aust J mar Freshwat Res 44: 699–707Google Scholar
  17. Parrish JD (1987) The trophic biology of snappers and groupers. In: Polovina JJ, Ralston S (ed) Tropical snappers and groupers. Biology and Fisheries Management. Westview Press, Boulder, Colorado, pp 405–463Google Scholar
  18. Sale PF, Ferrell DJ (1988) Early survivorship of juvenile coral reef fishes. Coral Reefs 7: 117–124Google Scholar
  19. Shulman MJ (1985) Recruitment of a coral reef fish: effects of the spatial distribution of predators and shelter. Ecology 66: 1056–1066Google Scholar
  20. Thresher RE (1983) Environmental correlates of the distribution of planktivorous fishes in the One Tree reef lagoon. Mar Ecol Prog Ser 10: 137–145Google Scholar
  21. Thresher RE (1984) Reproduction in reef fishes. T.F.H. Publications, Neptune CityGoogle Scholar
  22. Thresher RE (1985) Brood-directed parental aggression and early brood loss in the coral reef fish, Acanthochromis polyacanthus (Pomacentridae). Anim Behav 33: 897–907Google Scholar

Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • S. D. Connell
    • 1
  1. 1.School of Biological Sciences A08University of SydneySydneyAustralia

Personalised recommendations