Diversity of Seagrass-Associated Decapod Crustaceans in a Tropical Reef Lagoon Prior to Large Environmental Changes: A Baseline Study
| Autor: | Jaime Estrada-Olivo, Patricia Briones-Fourzán, Luz Verónica Monroy-Velázquez, Enrique Lozano-Álvarez |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
010603 evolutionary biology 01 natural sciences biology.animal shrimps Dominance (ecology) lcsh:QH301-705.5 Nature and Landscape Conservation Invertebrate Anomura Ecology biology Syringodium filiforme crustaceans 010604 marine biology & hydrobiology Ecological Modeling biology.organism_classification invertebrates crabs Agricultural and Biological Sciences (miscellaneous) hermit crabs Caridea Seagrass Geography lcsh:Biology (General) Thalassia testudinum Sargassum tropical seagrass ecosystems |
| Zdroj: | Diversity, Vol 12, Iss 205, p 205 (2020) Diversity Volume 12 Issue 5 |
| ISSN: | 1424-2818 |
| Popis: | The community composition of decapods associated with subtidal tropical seagrass meadows was analyzed in a pristine reef lagoon on the Mexican Caribbean coast in the summer of 1995 and winter of 1998. The macrophyte community was dominated by Thalassia testudinum followed by Syringodium filiforme, with interspersed rhyzophytic macroalgae and large patches of drift algae. In each season, 10 one-min trawls were made with an epibenthic sled (mesh aperture 1 mm) during the day and 10 during the night on each of five sites. In all, 53,211 decapods belonging to 119 species were collected. The most diverse taxa were Brachyura and Caridea, but the most abundant were Caridea and Anomura. Dominance was high, with three species (Latreutes fucorum, Cuapetes americanus, and Thor manningi) accounting for almost 50% of individuals, and 10 species accounting for nearly 90% of individuals. There was great similarity in community composition and ecological indices between seasons, but significantly more individuals and species in night versus day samples. In the 20+ years elapsed since the samples were taken, the reef lagoon has undergone substantial environmental changes due to extensive coastal development and, more recently, the decay of massive beachings of floating Sargassum macroalgae. This study constitutes a valuable baseline for future studies investigating the potential impact of these stressors on tropical seagrass-associated communities. |
| Databáze: | OpenAIRE |
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