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Assessing the importance of fishing impacts on Hawaiian coral reef fish assemblages along regional-scale human population gradients

  • I. D. WILLIAMS (a1) (a2), W. J. WALSH (a2), R. E. SCHROEDER (a3), A. M. FRIEDLANDER (a4), B. L. RICHARDS (a3) and K. A. STAMOULIS (a2)...
Abstract
SUMMARY

Humans can impact coral reef fishes directly by fishing, or indirectly through anthropogenic degradation of habitat. Uncertainty about the relative importance of those can make it difficult to develop and build consensus for appropriate remedial management. Relationships between fish assemblages and human population density were assessed using data from 18 locations widely spread throughout the Main Hawaiian Islands (MHI) to evaluate the significance of fishing as a factor potentially driving fish trends on a regional scale. Fish biomass in several groups was negatively correlated with local human population density and a number of lines of evidence indicate that fishing was the prime driver of those trends. First, declines were consistently evident among fish groups targeted by fishers, but not among lightly fished or non-target groupings, which indicates that declines in target groups were not simply indicative of a general decline in habitat quality along human population gradients. Second, proximity to high human populations was not associated with low fish biomass where shoreline structure prevented ready access by fishers. Relatively remote and inaccessible locations within the MHI had 2.1–4.2 times the biomass of target fishes compared to accessible and populous locations, and may therefore function as partial refugia. However, stocks in those areas were clearly far from pristine, as biomass of large predators was more than an order of magnitude lower than at more intact ecosystems elsewhere in the Pacific.

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Corresponding author
*Correspondence: Dr Ivor Williams Tel: +1 808 327 6231 Fax: +1 808 327 6229 e-mail: ivor@hawaii.edu
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C. Birkeland & P.K. Dayton (2005) The importance in fishery management of leaving the big ones. Trends in Ecology and Evolution 20 (7): 356358.

J.E. Cinner & T.R. McClanahan (2006) Socioeconomic factors that lead to overfishing in small-scale coral reef fisheries of Papua New Guinea. Environmental Conservation 33 (1): 7380.

N.K. Dulvy , R.E. Mitchell , D. Watson , C.J. Sweeting & N.V.C. Polunin (2002) Scale-dependant control of motile epifaunal community structure along a coral reef fishing gradient. Journal of Experimental Marine Biology and Ecology 278 (1): 129.

N.K. Dulvy , N.V.C. Polunin , A.C. Mill & N.A.J. Graham (2004) Size structural change in lightly exploited coral reef fish communities: evidence for weak indirect effects. Canadian Journal of Fisheries and Aquatic Sciences 61 (3): 466475.

E.N. Edinger , J. Jompa , G.V. Limmon , W. Widjatmoko & M.J. Risk (1998) Reef degradation and coral biodiversity in Indonesia: effects of land-based pollution, destructive fishing practices and changes over time. Marine Pollution Bulletin 36 (8): 617630.

A.M. Friedlander & E.E. DeMartini (2002) Contrasts in density, size, and biomass of reef fishes between the northwestern and the main Hawaiian islands: the effects of fishing down apex predators. Marine Ecology Progress Series 230: 253264.

A.M. Friedlander , E. Brown & M.E. Monaco (2007 a) Defining reef fish habitat utilization patterns in Hawaii: comparisons between marine protected areas and areas open to fishing. Marine Ecology - Progress Series 351: 221233.

A.M. Friedlander , E.K. Brown & M.E. Monaco (2007 b) Coupling ecology and GIS to evaluate efficacy of marine protected areas in Hawaii. Ecological Applications 17 (3): 715730.

A.M. Friedlander , E.K. Brown , P.L. Jokiel , W.R. Smith & K.S. Rodgers (2003) Effects of habitat, wave exposure, and marine protected area status on coral reef fish assemblages in the Hawaiian archipelago. Coral Reefs 22 (3): 291305.

N.A.J. Graham , S.K. Wilson , S. Jennings , N.V.C. Polunin , J.P. Bijoux & J. Robinson (2006) Dynamic fragility of oceanic coral reef ecosystems. Proceedings of the National Academy of Sciences of the United States of America 103 (22): 84258429.

S. Jennings & J.M. Lock (1996) Populations and ecosystem effect of reef fishing. In: Reef Fisheries, ed. N.V.C. Polunin & C.M. Roberts , pp. 193218. London, UK: Chapman and Hall.

S. Jennings & N.V.C. Polunin (1996) Effects of fishing effort and catch rate upon the structure and biomass of Fijian reef fish communities. Journal of Applied Ecology 33 (2): 400412.

S. Jennings , D.P. Boulle & N.V.C. Polunin (1996) Habitat correlates of the distribution and biomass of Seychelles' reef fishes. Environmental Biology of Fishes 46 (1): 1525.

S. Jennings , E.M. Grandcourt & N.V.C. Polunin (1995) The effects of fishing on the diversity, biomass and trophic structure of Seychelles' reef fish communities. Coral Reefs 14 (4): 225235.

S. Jennings , J.D. Reynolds & S.C. Mills (1998) Life history correlates of responses to fisheries exploitation. Proceedings of the Royal Society of London Series B – Biological Sciences 265 (1393): 333339.

G.P. Jones , M.I. McCormick , M. Srinivasan & J.V. Eagle (2004) Coral decline threatens fish biodiversity in marine reserves. Proceedings of the National Academy of Sciences of the United States of America 101 (21): 82518253.

T.R. McClanahan , N.A.J. Graham , J.M. Calnan & M.A. MacNeil (2007) Toward pristine biomass: reef fish recovery in coral reef marine protected areas in Kenya. Ecological Applications 17 (4): 10551067.

C.G. Meyer , K.N. Holland & Y.P. Papastamatiou (2007 a) Seasonal and diel movements of giant trevally Caranx ignobilis at remote Hawaiian atolls: implications for the design of marine protected areas. Marine Ecology - Progress Series 333: 1325.

C.G. Meyer , Y.P. Papastamatiou & K.N. Holland (2007 b) Seasonal, diel, and tidal movements of green jobfish (Aprion virescens, Lutjanidae) at remote Hawaiian atolls: implications for marine protected area design. Marine Biology 151 (6): 21332143.

P.J. Mumby , C.P. Dahlgren , A.R. Harborne , C.V. Kappel , F. Micheli , D.R. Brumbaugh , K.E. Holmes , J.M. Mendes , K. Broad , J.N. Sanchirico , K. Buch , S. Box , R.W. Stoffle & A.B. Gill (2006) Fishing, trophic cascades, and the process of grazing on coral reefs. Science 311 (5757): 98101.

K. Newton , I.M. Cote , G.M. Pilling , S. Jennings & N.K. Dulvy (2007) Current and future sustainability of island coral reef fisheries. Current Biology 17 (7): 655658.

N.V.C. Polunin & C.M. Roberts (1993) Greater biomass and value of target coral-reef fishes in two small Caribbean marine reserves. Marine Ecology Progress Series 100 (1–2): 167176.

W.D. Robbins , M. Hisano , S.R. Connolly & J.H. Choat (2006) Ongoing collapse of coral-reef shark populations. Current Biology 16 (23): 23142319.

G.R. Russ & A.C. Alcala (1989) Effects of intense fishing pressure on an assemblage of coral reef fishes. Marine Ecology Progress Series 56 (1–2): 1327.

G.R. Russ & A.C. Alcala (2003) Marine reserves: rates and patterns of recovery and decline of predatory fish, 1983–2000. Ecological Applications 13 (6): 15531565.

S.A. Sandin , J.E. Smith , E.E. DeMartini , E.A. Dinsdale , S.D. Donner , A.M. Freidlander , T. Konotchick , M. Malay , J.E. Maragos , D. Obura , O. Pantos , G. Paulay , M. Richie , F. Rohwer , R.E. Schroeder , S. Walsh , J.B.C. Jackson , N. Knowlton & E. Sala (2008) Baselines and degradation of coral reefs in the northern Line Islands. PLOS One 3 (2): e1548.

J.E. Smith , C.L. Hunter & C. M. Smith (2002) Distribution and reproductive characteristics of nonindigenous and invasive marine algae in the Hawaiian Islands. Pacific Science 56 (3): 299315.

B.N. Tissot , W.J. Walsh & L.E. Hallacher (2004) Evaluating effectiveness of a marine protected area network in West Hawai'i to increase productivity of an aquarium fishery. Pacific Science 58 (2): 175188.

T. Tomascik & F. Sander (1987) Effects of eutrophication on reef-building corals. 2: Structure of scleractinian coral communities on fringing reefs, Barbados, West-Indies. Marine Biology 94 (1): 5375.

I.D. Williams , W.J. Walsh , A. Miyasaka & A.M. Friedlander (2006) Effects of rotational closure on coral reef fishes in Waikiki-Diamond Head Fishery Management Area, Oahu, Hawaii. Marine Ecology - Progress Series 310: 139149.

S.K. Wilson , N.A.J. Graham , M.S. Pratchett , G.P. Jones & N.V.C. Polunin (2006) Multiple disturbances and the global degradation of coral reefs: are reef fishes at risk or resilient? Global Change Biology 12 (11): 22202234.

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Environmental Conservation
  • ISSN: 0376-8929
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