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Sightings of Cetaceans during JARE - 56 in the Indian Sector of the Southern Ocean

Turkish Journal of Fisheries and Aquatic Sciences 2023 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 30 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Bayram Öztürk, Kentaro Watanabe, Ayaka Amaha Öztürk

Summary

Researchers recorded cetacean sightings during a Japanese Antarctic expedition in 2014-2015, documenting 28 sightings of four species including humpback whales and Antarctic minke whales. The data contributes to population monitoring for marine mammals in the Southern Ocean. Large marine mammals are exposed to microplastics through the ocean food chain, making baseline population data important for long-term health monitoring.

Study Type Environmental

The cetacean observation was made during the 56th Japanese Antarctic Research Expedition (JARE - 56) cruise on the icebreaker SHIRASE, from 30 November to 15 December 2014 and from 15 February to 9 March 2015, in the Indian Ocean Sector of the Southern Ocean. A total of 28 sightings with 64 individuals of four cetacean species, humpback whale, (Megaptera novaeangliae), fin whale (Balaenoptera physalus), Antarctic minke whale (Balaenoptera bonaerensis), and killer whale (Orcinus orca), are reported. The most sighted species was the humpback whale (13 sightings) and the maximum number of individuals in a group was six for the same species. All sightings were made higher than 60 degrees South, close to the Antarctica coast.

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