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Title
Protected areas and benthic characteristics influence the distribution of the Vulnerable bumphead parrotfish Bolbometopon muricatum in the Andaman and Nicobar Islands, India
Author(s)
Patankar, Vardhan; Wagh, Tanmay; Marathe, Aniruddha
Published
2020
Publisher
ORYX
Published Version DOI
https://doi.org/10.1017/S0030605318000376
Abstract
The Vulnerable bumphead parrotfish Bolbometopon muricatum, a highly prized fishery resource worldwide, has experienced population declines throughout its geographical range. There is limited knowledge of the distribution and abundance of, and threats to, this fish in Indian waters, particularly for the Andaman and Nicobar Islands. To assess the species’ distribution and conservation status we conducted underwater surveys across 75 sites around 51 islands and interviewed 99 fishers across the Andaman and Nicobar archipelago. We recorded a total of 59 individual B. muricatum across nine sites from the northernmost island in the Andamans (Landfall Island) to the southernmost island in the Nicobars (Great Nicobar Island). Interviews revealed that most fishers (100% in Nicobar, 94% in Middle Andaman, 62% in South Andaman) had seen B. muricatum, and knowledge of the species is highest amongst spearfishers. Generalized linear models indicated that presence of marine protected areas and high live coral cover influenced the abundance and distribution of B. muricatum. The species' density seems to be naturally low in the archipelago. We discuss our findings in the light of protecting rare and threatened species, and recommend strengthening the existing marine protected areas in these islands.
Keywords
Andaman and Nicobar Islands; Bolbometopon muricatum; bumphead parrotfish; coral reefs; India; marine protected area; bumphead; parrotfish; parrotfish bolbometopon-muricatum; traditional ecological knowledge; marine; conservation; resilience; management; diversity; redundancy; herbivory; Biodiversity & Conservation; Environmental Sciences & Ecology
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PUB25036