Anthropogenic Threats and Conservation Needs of Blue Whales, Balaenoptera musculus indica, around Sri Lanka
evidence
Blue whales of the northern Indian Ocean, provisionally referred to Balaenoptera musculus indica, remain in warm tropical waters year-round rather than migrating annually to cold high-latitude feeding grounds, breed roughly six months out of phase with southern Indian Ocean pygmy blue whales, and have a distinct acoustic call; their subspecies status is debated. The population was encountered during sperm whale research off Trincomalee in the early 1980s. V55 verification basis: retrieved in search summary attributed to this paper and to concurring reference material; the paper was not fetched, and the taxonomic dispute is unresolved in the sources retrieved.
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