2019
DOI: 10.1111/maec.12539
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Reef fish structure assemblages in oceanic islands of the eastern tropical Pacific: Revillagigedo Archipelago and Clipperton atoll

Abstract: Revillagigedo Archipelago and Clipperton atoll are oceanic islands located in the eastern tropical Pacific. The composition and trophic structure of their fish assemblages have never been characterized in detail, and the aim of this study was therefore to analyse the community structure and assess the similarity of fish assemblages between these two areas. Underwater visual fish censuses were conducted using band transects at two depth levels in three islands of the Revillagigedo Archipelago (Socorro, San Bene… Show more

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Cited by 5 publications
(14 citation statements)
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References 59 publications
(112 reference statements)
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“…This indicates that the difference in δ N between the two shark populations (Figure 2A) is mostly explained by variations in isotopic composition at the base of the food webs, such as previously observed for tunas in this area (Lorrain et al, 2015;Olson et al, 2010). This result is in total agreement with a recent assessment of the reef fish structures from the two MPAs, revealing a similar community mean trophic level between the two sites (Fourriére et al, 2019). The difference in δ 15 N baselines between sites is thought to be influenced by the south-to-north increase of δ 15 N values in the dissolved nitrate pool (Olson et al, 2010).…”
Section: Habitat Isotopic Featuressupporting
confidence: 91%
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“…This indicates that the difference in δ N between the two shark populations (Figure 2A) is mostly explained by variations in isotopic composition at the base of the food webs, such as previously observed for tunas in this area (Lorrain et al, 2015;Olson et al, 2010). This result is in total agreement with a recent assessment of the reef fish structures from the two MPAs, revealing a similar community mean trophic level between the two sites (Fourriére et al, 2019). The difference in δ 15 N baselines between sites is thought to be influenced by the south-to-north increase of δ 15 N values in the dissolved nitrate pool (Olson et al, 2010).…”
Section: Habitat Isotopic Featuressupporting
confidence: 91%
“…As food webs supported by coral reef display higher δ 13 C values than phytoplankton-based food webs (Briand et al, 2016;Kolasinski et al, 2011), this result could potentially suggest that Clipperton's food web is mostly supported by coral reef, while that of Revillagigedo might be more influenced by oceanic inputs of organic matter. This assumption is in agreement with the greater coral cover observed in Clipperton Atoll compared to the Revillagigedo Archipelago (Fourriére et al, 2019).…”
Section: Habitat Isotopic Featuressupporting
confidence: 87%
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