First-ever observations of a live giant squid in the wild

Author:

Kubodera Tsunemi1,Mori Kyoichi2

Affiliation:

1. Department of Zoology, National Science Museum3-23-1 Hyakunin-cho, Shinjuku-ku, Tokyo 169-0073, Japan

2. Ogasawara Whale Watching Association, Aza Higashi-machiChichijima, Ogasawara, Tokyo 100-2101, Japan

Abstract

The giant squid, Architeuthis , is renowned as the largest invertebrate in the world and has featured as an ominous sea monster in novels and movies. Considerable efforts to view this elusive creature in its deep-sea habitat have been singularly unsuccessful. Our digital camera and depth recorder system recently photographed an Architeuthis attacking bait at 900 m off Ogasawara Islands in the North Pacific. Here, we show the first wild images of a giant squid in its natural environment. Recovery of a severed tentacle confirmed both identification and scale of the squid (greater than 8 m). Architeuthis appears to be a much more active predator than previously suspected, using its elongate feeding tentacles to strike and tangle prey.

Publisher

The Royal Society

Subject

General Agricultural and Biological Sciences,General Environmental Science,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Medicine

Reference17 articles.

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2. Aoki K. Amano M. Yoshioka M. & Mori K. 2004 Differences in the diving behavior of sperm whales between Kii Peninsula and Ogasawara Islands. Abstract submitted to the 2004 conference of Japanese Mammalogical Society Tokyo Agricultural University Atsugi Tokyo October 8–11 2004. (In Japanese).

3. Phylogenetic analysis of cytochrome c oxidase I sequences to determine higher-level relationships within the coleoid cephalopods;Carlini D.B;Bull. Mar. Sci,1999

4. A Review of the Systematics and Ecology of Oceanic Squids

5. On the use of ammonium for buoyancy in squids

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