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Article << Previous     |         Contents Vol 62(5)

Does rapid scavenging hide non-predation mortality in coral-reef communities?

Andrew Rassweiler A C D and Thomas Rassweiler B C

A Marine Science Institute, University of California, Santa Barbara, CA 93106, USA.
B 1160 Third Avenue, New York, NY 10023, USA.
C Both authors contributed equally to this work.
D Corresponding author. Email: rassweil@lifesci.ucsb.edu

Marine and Freshwater Research 62(5) 510-515 http://dx.doi.org/10.1071/MF10194
Submitted: 17 July 2010  Accepted: 17 December 2010   Published: 25 May 2011


 
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Abstract

Predation is assumed to be a principal cause of adult fish mortality on coral reefs, and therefore a main pathway by which biomass is passed to higher trophic levels. However, the strength of predation has mostly been demonstrated on juvenile fish, and even with juveniles, when predators are excluded, substantial mortality still occurs. Mortality from causes other than predation is rarely considered, because carrion is not common on coral reefs, but the strength of this inference depends crucially on the rate of scavenging. We tested the hypothesis that removal of carrion through scavenging may be very rapid by placing undamaged fish carcasses of a range of species and sizes on reefs in Curaçao, monitoring their rate of disappearance. All carrion was consumed within 24 h and at such rapid rates that, if non-predation mortality were occurring, it would leave little evidence on the reef. Carcasses were consumed almost exclusively by fish, mainly reef-associated piscivores, indicating that scavenged biomass is tightly recycled within the reef fish community. The results of this study suggest that more attention should be paid to quantifying the role of non-predation sources of fish mortality in reef ecosystems.

Additional keywords: Caribbean, community ecology, marine.


References

Bailey, D. M., King, N. J., and Priede, I. G. (2007). Cameras and carcasses: historical and current methods for using artificial food falls to study deep-water animals. Marine Ecology Progress Series 350, 179–191.
CrossRef |

Britton, J. C., and Morton, B. (1994). Marine carrion and scavengers. Oceanography and Marine Biology Annual Reviews 32, 369–434.

Harvey, E., Cappo, M., Butler, J., Hall, N., and Kendrick, G. (2007). Bait attraction affects the performance of remote underwater video stations in assessment of demersal fish community structure. Marine Ecology Progress Series 350, 245–254.
CrossRef |

Heagney, E. C., Lynch, T. P., Babcock, R. C., and Suthers, I. M. (2007). Pelagic fish assemblages using mid-water baited video: standardized fish counts using bait plume size. Marine Ecology Progress Series 350, 255–266.
CrossRef |

Hill, B. J., and Wassenberg, T. J. (2000). The probable fate of discards from prawn trawlers fishing near coral reefs: a study in the northern Great Barrier Reef, Australia. Fisheries Research 48, 277–286.
CrossRef |

Hixon, M. A., and Jones, G. P. (2005). Competition, predation and density-dependant mortality in demersal marine fishes. Ecology 86, 2847–2859.
CrossRef |

Hixon, M. A., and Webster, M. S. (2006). Density dependence in reef fish populations. Numerical and energetic processes in the ecology of coral reef fishes. In ‘Coral Reef Fishes’. (Ed. P. F. Sale.) pp. 303–325. (Academic Press: San Diego.)

Holbrook, S. J., and Schmitt, R. J. (2002). Competition for shelter space causes density-dependent predation mortality in damselfishes. Ecology 83, 2855–2868.
CrossRef |

Jennings, S., and Polunin, N. V. C. (1997). Impacts of predator depletion by fishing on the biomass and diversity of non-target reef fish communities. Coral Reefs 16, 71–82.
CrossRef |

Jones, G. P., and McCormick, M. I. (2002). Numerical and energetic processes in the ecology of coral reef fishes. In ‘Coral Reef Fishes’. (Ed. P. F. Sale.) pp. 221–238. (Academic Press: San Diego.)

Kaiser, M. J., and Moore, P. G. (1999). Obligate scavengers, do they exist? Journal of Natural History 33, 475–481.
CrossRef |

Keable, S. J. (1995). Structure of the marine invertebrate scavenging guild of a tropical reef ecosystem: field studies at Lizard Island, Queensland, Australia. Journal of Natural History 29, 27–45.
CrossRef |

King, N. J., Bailey, D. M., and Priede, I. G. (2007). Role of scavengers in marine ecosystems: introduction. Marine Ecology Progress Series 350, 175–178.
CrossRef |

Lo, C. M., Morand, S., and Galzin, S. (1998). Parasite diversity/host age and size relationship in three coral-reef fishes from French Polynesia. International Journal for Parasitology 28, 1695–1708.
CrossRef | CAS | PubMed |

Peters, E. C. (1997). Diseases of coral-reef organisms. In ‘Life and Death of Coral Reefs’. (Ed. C. Birkeland.) pp. 114–139. (Chapman & Hall: New York.)

Priede, I. G., Godbold, J. A., King, N. J., Collins, M. A., Bailey, D. M., et al. (2010). Deep-sea demersal fish species richness in the Porcupine Seabight, NE Atlantic Ocean: global and regional patterns. Marine Ecology (Berlin) 31, 247–260.
CrossRef |

Ramsay, K., Kaiser, M. J., Moore, G., and Hughes, R. N. (1997). Consumption of fisheries discards by benthic scavengers: utilization of energy subsidies in different marine habitats. Journal of Animal Ecology 66, 884–896.
CrossRef |

Randall, J. E. (1967). Food habits of reef fishes of the West Indies. Studies in Tropical Oceanography 5, 665–847.

Sandin, S. A., and Pacala, S. W. (2005). Demographic theory of coral reef fish populations with stochastic recruitment: comparing sources of population regulation. American Naturalist 165, 107–119.
CrossRef | PubMed |

Sandin, S. A., Sampayo, E. M., and Vermeij, M. J. A. (2007). Coral reef fish and benthic community structure of Bonaire and Curaçao, Netherlands Antilles. Caribbean Journal of Science 44, 137–144.

Sandin, S. A., Smith, J. E., DeMartini, E. E., Dinsdale, E. A., Donner, S. D., et al. (2008). Baselines and degradation of coral reefs in the Northern Line Islands. PLoS One 3, e1548..
| PubMed |

Schäfer, W. (1972). ‘Ecology and Palaeoecology of Marine Environments.’ (Oliver & Boyd: Edinburgh.)

Valentine, J. F., Heck, K. L., Blackmon, D., Goecker, M. E., Christian, J., et al. (2008). Exploited species impacts on trophic linkages along reef–seagrass interfaces in the Florida Keys. Ecological Applications 18, 1501–1515.
CrossRef | PubMed |

Watson, D. L., and Harvey, E. S. (2007). Behaviour of temperate and sub-tropical reef fishes towards a stationary SCUBA diver. Marine and Freshwater Behaviour and Physiology 40, 85–103.
CrossRef |

Watson, D. L., Harvey, E. S., Anderson, M. J., and Kendrick, G. A. (2005). A comparison of temperate reef fish assemblages recorded by three underwater stereo-video techniques. Marine Biology 148, 415–425.
CrossRef |

Watson, D. L., Harvey, E. S., Fitzpatrick, B. M., Langlois, T. J., and Shedrawi, G. (2010). Assessing reef fish assemblage structure: how do different stereo-video techniques compare? Marine Biology 157, 1237–1250.
CrossRef |

Willis, T. J., and Babcock, R. C. (2000). A baited underwater video system for the determination of relative density of carnivorous reef fish. Marine and Freshwater Research 51, 755–763.
CrossRef |


   
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