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17472
Open
SC/68B/O/04
Cruise Report of the New Scientific Whale Research Program in the western North Pacific (NEWREP-NP) in 2019 - Pacific coastal component
Isoda, T., Ito, N., Inoue, S., Kumagai, S., Nakamura, G., Ogihara, M., Kim, Y., Nishimura, F., Yamamoto, R., Uruma, H., Chida, A., Matsumoto, H., Sazawa, R., Fukuyoshi, M., Hatanaka, T., Oikawa, H., Yasunaga, G. and Kato, H.
International Whaling Commission
2020
The last survey of the NEWREP-NP Pacific coastal component was conducted in sub-areas 7CS, and consisted of two surveys based in Ayukawa and Hachinohe ports. The survey in Ayukawa was conducted from 4 to 28 April 2019, using four small-type whaling catcher boats as sighting/sampling vessels. The survey in Hachinohe was conducted from 4 to 25 May 2019, using four small-type boats as sighting/sampling vessels. Searching for common minke whales and sampling took place in coastal waters about 30n.miles from Ayukawa and Hachinohe. All common minke whales sampled were landed at the NEWREP-NP research stations established in Ayukawa and Hachinohe, where biological examination was conducted. During the survey in Ayukawa, a total of 22 primary sightings (22 individuals) of common minke whale were made during 4,254.9n.miles of searching distance (443.1 hours). A total of 20 common minke whales (11 males and nine females) were sampled. The dominant prey species was Japanese sardine. During the survey in Hachinohe, a total of 29 primary sightings (29 individuals) of common minke whale were made during 2,788.8n.miles of searching distance (291.5 hours). A total of 27 common minke whales (16 males and 11 females) were sampled. The dominant prey species was Japanese sardine and krill. In total 47 common minke whales were collected. Biological samples and data required for Primary Objective I and Ancillary Objectives I and II of NEWREP-NP were obtained from all animals sampled. It should be noted that the NEWREP-NP program was terminated in June 2019 due to the withdrawal of Japan from the International Convention for the Regulation of Whaling on 30 June 2019. Therefore, this paper reports the last survey in sub-area 7 conducted under the NEWREP-NP. Results of the analyses of samples and data obtained under NEWREP-NP will be summarized and reported in the future. Research outputs will be used for the management of Japanese commercial whaling on western North Pacific common minke and sei whales.
