Taxonomic assessment and diversity of sea slugs (Gastropoda: Heterobranchia) along the Karnataka Coast, India

Viswambharan, Divya and Sasikumar, Geetha and Rohit, Prathibha (2025) Taxonomic assessment and diversity of sea slugs (Gastropoda: Heterobranchia) along the Karnataka Coast, India. Indian Journal of Fisheries, 72 (4). pp. 140-145. ISSN 0970-6011

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Abstract

Sea slugs in Karnataka's marine ecosystems have been understudied, resulting in limited documentation. To address this gap, extensive field surveys were conducted across the rocky reefs and off-shore patchy reefs of Karnataka, extending up to a depth of 38 m. During the surveys nine sea slug species were documented, representing four genera (Goniobranchus, Phyllidia, Coryphellina, and Elysia), belonging to four families (Chromodorididae, Phyllidiidae, Flabellinidae, and Plakobranchidae). Six of the nine species recorded are new additions to the sea slug fauna of the Karnataka Coast. By combining data from the current surveys with historical records, an annotated checklist of 36 species of sea slugs found in Karnataka was compiled.

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