Histopathological investigation of the reef coral Goniastrea sp. affected by macroalgal abrasion
| Autor: | J. Ravindran, S. Joseph, B. Manikandan, A. A. Padelkar |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
food.ingredient Coral Zoology Aquatic Science Biology 010603 evolutionary biology 01 natural sciences food Reef Ecology Evolution Behavior and Systematics geography geography.geographical_feature_category Ecology Gastrodermis 010604 marine biology & hydrobiology fungi Conoides technology industry and agriculture Coral reef Interspecific competition biochemical phenomena metabolism and nutrition biology.organism_classification Epidermis (zoology) population characteristics geographic locations Goniastrea |
| Zdroj: | Marine Biology. 168 |
| ISSN: | 1432-1793 0025-3162 |
| Popis: | Interspecific competition between corals and macroalgae is a common phenomenon on coral reefs, and its impacts on the cellular structure of corals are not well studied. Field observations in Gulf of Mannar Marine National Park (GoM), a protected reef environment, during January 2020 revealed abundant growth of the macroalga Turbinaria conoides over the coral, Goniastrea sp., causing tissue discoloration and physical injury through abrasion. Histopathological analysis revealed disruption of the gastrodermis with the loss of endosymbiotic dinoflagellates and focal ablation of the epidermis in the affected coral tissues. Cell counts confirmed a 65.1% reduction in endosymbiont density. Our results suggest that physical contact by T. conoides disrupted the coral epithelia, potentially leading to tissue loss and a reduction in live coral cover. |
| Databáze: | OpenAIRE |
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