2014
DOI: 10.15517/rbt.v62i0.16361
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A comparison of visual and collection-based methods for assessing community structure of coral reef fishes in the Tropical Eastern Pacific

Abstract: Gorgona island, the major insular area in the Colombian Pacific Ocean, is characterized by a remarkably high biological and ecosystem diversity for this area of the world. Coral reefs are well developed and their fish communities have been described using conventional visual surveys. These methods, however, are known to be biased towards detecting larger and more mobile species, tending to ignore small and cryptobenthic species. The two main objectives of this study were to describe the assemblage structure of… Show more

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Cited by 31 publications
(29 citation statements)
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References 42 publications
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“…In this context, the diversity, small size, and crypsis of CRFs have historically represented a great challenge. While many large coral reef fishes are adequately surveyed by the most common fish census technique, underwater visual censuses (UVCs; Edgar, Barrett & Morton, ), there is clear evidence that UVCs do not produce reliable estimates of CRF assemblages (Ackerman & Bellwood, ; Smith‐Vaniz et al , ; Alzate, Zapata & Giraldo, ). Indeed, only collection‐based methods provide an adequate representation of CRF communities.…”
Section: Diversity and Distribution Of Crfsmentioning
confidence: 99%
See 1 more Smart Citation
“…In this context, the diversity, small size, and crypsis of CRFs have historically represented a great challenge. While many large coral reef fishes are adequately surveyed by the most common fish census technique, underwater visual censuses (UVCs; Edgar, Barrett & Morton, ), there is clear evidence that UVCs do not produce reliable estimates of CRF assemblages (Ackerman & Bellwood, ; Smith‐Vaniz et al , ; Alzate, Zapata & Giraldo, ). Indeed, only collection‐based methods provide an adequate representation of CRF communities.…”
Section: Diversity and Distribution Of Crfsmentioning
confidence: 99%
“…4A). Specifically, although some data exist from the Eastern Pacific (González-Cabello & Bellwood, 2009;Alzate et al, 2014;Galland et al, 2017), Indo-Australian Archipelago (IAA; e.g. Depczynski & Bellwood, 2005;Ahmadia et al, 2012b), Western Atlantic (e.g.…”
Section: (2) Distribution and Abundancementioning
confidence: 99%
“…Previous research has assessed marine biodiversity at these islands, but has focused largely on the shallow-water ecosystems (Allen and Robertson, 1994;Glynn et al, 1996;Jost and Andréfouët, 2006;Alzate et al, 2014;Fourriére et al, 2014). Overall, the TEP is noted for its high level of endemism (72%) and relatively diverse shore-fish assemblages (Zapata and Ross Robertson, 2007).…”
Section: Introductionmentioning
confidence: 99%
“…Secondly, species range dynamics are affected by numerous ecological and evolutionary factors including biological interactions and the species’ behavioural and functional traits (Stahl, Reu, & Wirth, ). Thirdly, sampling intensity and detection probability vary across space and across species (Alzate, Zapata, & Giraldo, ; Dennis, Sparks, & Hardy, ), and such sampling biases may also drive variation in the apparent range size. Finally, stochastic events, especially during the early life of a species, may bring additional noise to the present‐day range size, making it difficult to find general patterns.…”
Section: Introductionmentioning
confidence: 99%