Cetacean occurrence and diversity in whale-watching waters off Mirissa,Southern Sri Lanka
作者机构：Marine Mammal and Marine Bioacoustics LaboratoryInstitute of Deep-sea Science and EngineeringChinese Academy of SciencesSanyaChina University of Chinese Academy of SciencesBeijingChina Department of Animal ScienceFaculty of Animal Science and Export AgricultureUva Wellassa UniversitySri Lanka South China Sea Institute of OceanologyInnovation Academy of South China Sea Ecology and Environmental EngineeringChinese Academy of SciencesGuangzhouChina Department of Oceanography and Marine GeologyFaculty of Fisheries and Marine Sciences and TechnologyUniversity of RuhunaWellamadamaMataraSri Lanka
出 版 物：《Integrative Zoology》 (整合动物学（英文版）)
年 卷 期：2021年第16卷第4期
页 面：462-476页
核心收录：
基 金：The data analysis and paper writing were financially supported by the“One Belt and One Road”Science and Technology Cooperation Special Program of the International Partnership Program of Chinese Academy of Sciences(Grant number 183446KYSB20200016) the Indian Ocean Ninety-East Ridge Ecosystem and Marine Environment Monitoring and Protection,Supported by the China Ocean Mineral Resources R&D Association(no.DY135-E2-4)
主 题：cetaceans diversity index dolphins Sri Lanka whale-watching
摘 要：Scientific information is vital to the conservation of cetaceans and the management of whale-watching *** southern coastal waters of Sri Lanka are near a narrow continental shelf and biologically abundant in cetacean *** the occurrence of cetaceans has been investigated in certain waters of Sri Lanka,few surveys have been conducted along the southern *** fill this gap,we conducted boat-based surveys from January to May 2017 to investigate the occurrence,diversity,and behavior of cetaceans in the waters off Mirissa,covering a survey area of 788.9 *** 55 survey days,we recorded a total of 242 cetacean sightings and identified at least 9 species(3 mysticetes and 6 odontocetes).The blue whale was the most common mysticete species(167 of 174 mysticete encounters),followed by the Omura’s whale(4 of 174)and Bryde’s whale(3 of 174).The spinner dolphin was the most common odontocete species(28 of 68 odontocete encounters),followed by the sperm whale(18 of 68),common bottlenose dolphin(13 of 68),short-finned pilot whale(5 of 68),melon-headed whale(2 of 68),and killer *** whales and sperm whales exhibited a clear preference for outer shelf and high slope areas,and blue whales were observed feeding along these *** present study provides near-baseline information on cetacean occurrence and diversity in whale-watching waters off southern Sri Lanka,and highlights the urgent need for proper management strategies for whale-watching activities.
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