Population assessment of the endemic angelfish Holacanthus limbaughi from Île de La Passion-Clipperton Atoll (Tropical Eastern Pacific)
| Autor: | Clua, E, Bessudo, S, Caselle, JE, Chauvet, C, Jost, C, Friedlander, AM |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Endangered Species Research, Vol 38, Pp 171-176 (2019) |
| Druh dokumentu: | article |
| ISSN: | 1863-5407 1613-4796 |
| DOI: | 10.3354/esr00947 |
| Popis: | We provide the first assessment for a coral reef fish population of a potentially threatened endemic species from a remote and isolated oceanic island. Based on a 3-dimensional (3D) numerical field model of the reef habitat and underwater visual censuses conducted by 2 different teams in February and May 2016, we show that the 3.7 km2 of the Clipperton Atoll reefs shallower than 30 m host >50000 ind. (average density of 0.02 ind. m-2) of the endemic Clipperton angelfish Holacanthus limbaughi. Based on limited submersible observations to 150 m, the population likely extends below the 30 m depth stratum, resulting in an even larger population size and providing a potential depth refuge against expected warming ocean temperatures. |
| Databáze: | Directory of Open Access Journals |
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