Hostname: page-component-848d4c4894-8bljj Total loading time: 0 Render date: 2024-06-17T19:56:33.906Z Has data issue: false hasContentIssue false

First records of small-sized young giant squid Architeuthis dux from the coasts of Kyushu Island and the south-western Sea of Japan

Published online by Cambridge University Press:  20 October 2015

Toshifumi Wada*
Affiliation:
Institute of Natural and Environmental Sciences, University of Hyogo, Yayoigaoka 6, Sanda, Hyogo 669-1546, Japan
Tsunemi Kubodera
Affiliation:
National Museum of Nature and Science, Collection Center, Amakubo 4-1-1, Tsukuba city, Ibaragi 305-0005, Japan
Morihiko Yamada
Affiliation:
Kagoshima City Aquarium, Honkoshin-machi 3-1, Kagoshima city, Kagoshima 892-0814, Japan
Hiroyoshi Terakado
Affiliation:
Shimane Prefectural Fisheries Technology Center, Setogashima-cho 25-1, Hamada city, Shimane 697-0051, Japan
*
Correspondence should be addressed to: T. Wada, Institute of Natural and Environmental Sciences, University of Hyogo, Yayoigaoka 6, Sanda, Hyogo 669-1546, Japan email: wada@hitohaku.jp
Get access

Abstract

Three individuals of small, young giant squid Architeuthis dux were caught in or near Japanese coastal waters during April–June 2013. The first occurrence of a young individual of 140.8 mm dorsal mantle length with a total weight of 44.81 g was recorded on the coast off Uchinoura, Kagoshima, Kyushu Island, southern Japan. The remaining two young individuals, both measuring 332.0 mm in dorsal mantle length with total weights of 390.63 and 356.95 g respectively, were caught on the coast off Hamada, Shimane, south-western Sea of Japan. Most morphological traits of all the specimens were consistent with those of A. dux, which was supported by further genetic analysis. Here we present some morphological traits of young giant squids with morphometric data and photographs.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Akitomo, K., Masuda, S. and Awaji, T. (1997) Kuroshio path variation south of Japan: stability of the paths in a multiple equilibrium regime. Journal of Oceanography 53, 129142.Google Scholar
Brunetti, N.E., Ivanovic, M.L., Sakai, M. and Pascual, L.N. (2002) Two new records of giant squid (Architeuthis sp.) from the Patagonian region. Revista de Investigacion y Desarrollo Pesquero 15, 95110.Google Scholar
Carlini, D.B. and Graves, J.E. (1999) Phylogenetic analysis of cytochrome c oxidase I sequences to determine higher-level relationships within the coleoid cephalopods. Bulletin of Marine Science 64, 5776.Google Scholar
Cherel, Y. (2003) New records of the giant squid Architeuthis dux in the southern Indian Ocean. Journal of the Marine Biological Association of the United Kingdom 83, 12951296.Google Scholar
Clarke, M.R. (1986) A Handbook for the identification of cephalopod beaks. Oxford: Clarendon Press.Google Scholar
Förch, E.C. (1998) The marine fauna of New Zealand: Cephalopoda: Oegopsida: Architeuthidae [Giant squid]. National Institute of Water and Atmospheric Research Biodiversity Memories 110, 1113.Google Scholar
González, A.F., Guerra, A., Rocha, F. and Gracia, J. (2002) Recent findings of the giant squid Architeuthis in northern Spanish waters. Journal of the Marine Biological Association of the United Kingdom 82, 859861.Google Scholar
Guerra, Á., González, Á.F., Dawe, E.G. and Rocha, F. (2004) A review of the records of giant squid in the north-eastern Atlantic and severe injuries in Architeuthis dux stranded after acoustic explorations. ICES CMCC 29, 117.Google Scholar
Guerra, Á., González, Á.F., Pascual, S. and Dawe, E.G. (2011) The giant squid Architeuthis: an emblematic invertebrate that can represent concern for the conservation of marine biodiversity. Biological Conservation 144, 19891997.Google Scholar
Guerra, Á., Rodríguez-Navarro, A.B., González, Á.F., Romanek, C.S., Álvarez-Lloret, P. and Pierce, G.J. (2010) Life-history traits of the giant squid Architeuthis dux revealed from stable isotope signatures recorded in beaks. ICES Journal of Marine Science 67, 14251431.Google Scholar
Hase, H., Yoon, J.H. and Koterayama, W. (1999) The current structure of the Tsushima Warm Current along the Japanese coast. Journal of Oceanography 55, 217235.Google Scholar
Hoving, H.J.T., Roeleveld, M.A.C., Lipinski, M.R. and Melo, Y. (2004) Reproductive system of the giant squid Architeuthis in South African waters. Journal of Zoology 264, 153169.Google Scholar
Kaneko, N., Kubodera, T. and Iguchi, A. (2011) Taxonomic study of shallow-water octopuses (Cephalopoda: Octopodidae) in Japan and adjacent waters using mitochondrial genes with perspectives on octopus DNA barcoding. Malacologia 54, 97108.Google Scholar
Kubodera, T. (2004) Studies on systematic and phylogeny of giant squid, Architeuthis, around Japanese waters. Report of JSPS Grand-in-Aid for Scientific Research, 2001–2003, no. 13660197, pp. 115 [in Japanese].Google Scholar
Kubodera, T. and Mori, K. (2005) First-ever observations of a live giant squid in the wild. Proceedings the Royal Society B 272, 25832586.Google Scholar
Lordan, C., Collins, M.A. and Perales-Raya, C. (1998) Observations on morphology, age and diet of three Architeuthis caught off the west coast of Ireland in 1995. Journal of the Marine Biological Association of the United Kingdom 78, 903917.Google Scholar
Martins, R.S. and Perez, J.A.A. (2009) A new record of giant squid Architeuthis sp. (Cephalopoda: Oegopsida) in Brazilian waters. Zoologia 26, 613623.Google Scholar
NHK and Discovery Channel (2013) Giant squid photos. Available at: http://news.discovery.com/animals/giant-squid-pictures.htm (accessed February 2015).Google Scholar
Nishimura, S. (1966) Notes on the occurrence and biology of the oceanic squid, Thysanoteuthis rhombus Troschel, in Japan. Publications of the Seto Marine Biological Laboratory 14, 327349.Google Scholar
Okutani, T. (1982) Biology of Cephalopoda – 20. Life history of Thysanoteuthis rhombus Troschel. Aquabiology 4, 168170 [in Japanese with English abstract].Google Scholar
Regueira, M., Belcari, P. and Guerra, A. (2014) What does the giant squid Architeuthis dux eat? Hydrobiologia 725, 4955.CrossRefGoogle Scholar
Roeleveld, M.A.C. (2000) Giant squid beaks: implications for systematics. Journal of the Marine Biological Association of the United Kingdom 80, 185187.Google Scholar
Roeleveld, M.A.C. (2002) Tentacle morphology of the giant squid Architeuthis from the north Atlantic and Pacific Oceans. Bulletin of Marine Science 71, 725737.Google Scholar
Roper, C.F.E. and Boss, K.J. (1982) The giant squid. Scientific American 246, 8289.Google Scholar
Roper, C.F.E. and Voss, G.L. (1983) Guidelines for taxonomic descriptions of cephalopod species. Memoirs of the National Museum of Victoria 44, 4964.Google Scholar
Roper, C.F.E. and Young, R.E. (1972) First records of juvenile giant squid Architeuthis (Cephalopoda: Oegopsida). Proceedings of the Biological Society of Washington 85, 205222.Google Scholar
Sweeney, M.J. and Roper, C.F.E. (2001) Records of Architeuthis dux Specimens from Published Reports. Washington, DC: National Museum of Natural History, Smithsonian Institution. Available at: http://invertebrates.si.edu/cephs/archirec.pdfGoogle Scholar
Tamura, K., Peterson, D., Peterson, N., Stecher, G., Nei, M. and Kumar, S. (2011) MEGA5: molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Molecular Biology and Evolution 28, 27312739.Google Scholar
Tsuchiya, K. and Mori, K. (1998) A note on an early juvenile specimen of Architeuthis sp. collected from the south off central Honshu, Japan (Cephalopoda: Architeuthidae). Venus 57, 225230.Google Scholar
Winkelmann, I., Campos, P.F., Strugnell, J., Smith, P.J., Kubodera, T., Allcock, L., Kampmann, M., Schroeder, H., Guerra, A., Norman, M., Finn, J., Ingrao, D., Clarke, M. and Gilbert, T.P. (2013) Mitochondrial genome diversity and population structure of the giant squid Architeuthis: genetics sheds new light on one of the most enigmatic marine species. Proceedings the Royal Society B 287, 29.Google Scholar
Yano, K., Shimizu, H. and Kosuge, T. (1998) Notes on offshore fisheries resources of the sub-tropical regions in Japan. The Agriculture, Forestry and Fisheries Technology Research Journal 21, 3342 [in Japanese].Google Scholar