Cetacean strandings in the moving images of the NHK archives collections.

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  • NHKアーカイブス保存映像のなかの鯨類ストランディング
  • NHK アーカイブス ホゾン エイゾウ ノ ナカ ノ クジラルイ ストランディング

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Abstract

<p>We found 31 cetacean stranding events of 32 programs in the NHK Archives Collections (Kawaguchi City, Saitama Prefecture, Japan) from 1957 to 1989. One baleen whale and 12 toothed whale species (number) were identified from the events: gray whale Eschrichtius robustus (1), sperm whale Physeter macrocephalus (1), pygmy sperm whale Kogia breviceps (2), Cuvier's beaked whale Ziphius cavirostris (7), ginkgo-toothed beaked whale Mesoplodon ginkgodens (2), killer whale Orcinus orca (2), short-finned pilot whale Globicephala macrorhynchus (4), melon-headed whale Peponocephala electra (1), Risso's dolphin Grampus griseus (4), bottlenose dolphin Tursiops truncatus (1), pantropical spotted dolphin Stenella attenuata (1), northern right whale dolphin Lissodelphis borealis (1) and Pacific white-sided dolphin Lagenorhynchus obliquidens (1). One Berardius sp. was also recorded. These events occurred in 9 prefectures; Hokkaido (1), Ibaraki (3), Chiba (8), Kanagawa (14), Mie (1), Aichi (1), Hyogo (1), Nagasaki (1) and Miyazaki (1). Cuvier's beaked whale was the most frequent and all events of this species were recorded in Kanagawa prefecture. It seems the numbers in locality dose not reflect frequency distribution of the events because the data source (NHK Archives Collections) has principally collected Kanto area local news. Of 31 events, 14 were not listed in the stranding database of Whale Laboratory, Institute of Cetacean Research and National Museum of Nature and Science. Except for the stranding events, rare pygmy killer whales Feresa attenuata were recorded in dolphin fishery in Futo in Shizuoka and in Taiji in Wakayama prefectures.</p>

Journal

  • Japan Cetology

    Japan Cetology 25 (0), 1-6, 2015

    The Cetology Study Group of Japan

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