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Reproductive behaviour and cross-mating of two closely related pygmy squids Idiosepius biserialis and Idiosepius thailandicus (Cephalopoda: Idiosepiidae)

Published online by Cambridge University Press:  24 June 2008

Jaruwat Nabhitabhata*
Affiliation:
Centre for Biodiversity of Peninsular Thailand, Biology Department, Faculty of Science, Prince of Songkla University 90112, Thailand
Jitima Suwanamala
Affiliation:
Department of Marine Science, Faculty of Fisheries, Kasetsart University, Bangkok 10900, Thailand
*
Correspondence should be addressed to: Jaruwat NabhitabhataCentre for Biodiversity of Peninsular ThailandBiology Department, Faculty of Science Prince of Songkla University 90112, Thailand email: jaruwatnabhitabhata@gmail.com

Abstract

Idiosepius biserialis and Idiosepius thailandicus have been previously described as separate species although the difference in morphological characters is only the arrangement of pegs in tentacular-club suckers. The former species inhabits sea grass beds in the Andaman Sea of Thailand. The latter species inhabits mangroves in the eastern Gulf of Thailand. The present study of reproductive behaviour, mating, and spawning of the two species in captivity demonstrated that they are closely related. Copulation was performed using tentacles by the male for fixation of spermatophores at the buccal region of the female. Behavioural patterns were distinguished based on the hovering and adhering positions of each sex. Cross-mating between two species was initiated and observed, yielding fertilized eggs which developed to the organogenesis stage. Reproductive behaviour of crossed pairs was similar to those of individual species. This study revealed that the two ‘species’ are not reproductively isolated.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

REFERENCES

Boletzky, S.v. (1995) The systematic position of the sepiolidae (Mollusca: Cephalopoda). Bulletin de l'Institut Océanographique, Manaco, Numero special 16, 99104.Google Scholar
Boletzky, S.v. (2003) A lower limit to adult size in coleoid cephalopods: elements of a discussion. Berliner Palaobiologie Abhandlung 3, 1928.Google Scholar
Boletzky, S.v., Nishiguchi, M.K., Nabhitabhata, J. and Nugranad, J. (2005) Idiosepius: ecology, biology and biogeography of a mini-maximalist. Phuket Marine Biological Center Research Bulletin 66, 1122.Google Scholar
Chaitiamvong, S. (1993) Identification of cephalopods found in the Gulf of Thailand. Technical Report, Marine Life History Research Group, Marine Fisheries Division, Department of Fisheries, no. 23, 78 pp.Google Scholar
Cheng, M.W. and Caldwell, R.L. (2000) Sex identification and mating in the blue-ringed octopus, Hapalochlaena lunulata. Animal Behaviour 60, 2733.CrossRefGoogle Scholar
Chotiyaputta, C., Okutani, T. and Chaitiamvong, S. (1991) A new pygmy cuttlefish from the Gulf of Thailand Idiosepius thailandicus n. sp. (Cephalopoda: Idiosepiidae). Venus 50, 165174.Google Scholar
Chotiyaputta, C., Okutani, T. and Chaitiamvong, S. (1992) Systematic study of cephalopods in Thailand. National Research Council of Thailand under JSPS–NRCT Cooperation Project, Research Report, 100 pp.Google Scholar
Hanlon, R.T. (1983) Octopus briareus. In Boyle, P.R. (ed.) Cephalopod life cycles. Volume I. Species accounts London: Academic Press, pp. 3152.Google Scholar
Hanlon, R.T. and Messenger, J.B. (1996) Cephalopod behaviour Cambridge: Cambridge University Press.Google Scholar
Hylleberg, J. and Nateewathana, A. (1991a) Redescription of Idiosepius pygmaeus Steenstrup, 1881 (Cephalopoda: Idiosepiidae), with mention of additional morphological characters. Phuket Marine Biological Center Research Bulletin 55, 3342.Google Scholar
Hyllberg, J. and Nateewathana, A. (1991b) Morphology, internal anatomy, and biometrics of the cephalopod Idiosepius biserialis Voss, 1962—a new record for the Andaman Sea. Phuket Marine Biological Center Research Bulletin 56, 19.Google Scholar
Jackson, G.D. and Choat, J.H. (1992) Growth in tropical cephalopods: an analysis based on statolith microstructure. Canadian Journal of Fisheries and Aquatic Science 49, 218228.CrossRefGoogle Scholar
Kasugai, T. (2000) Reproductive behavior of the pygmy cuttlefish Idiosepius paradoxus in an aquarium. Venus 59, 3744.Google Scholar
Lewis, A.R. and Choat, J.H. (1993) Spawning mode and reproductive output of the tropical cephalopod Idiosepius pygmaeus. Canadian Journal of Fisheries and Aquatic Science 50, 2028.CrossRefGoogle Scholar
Nabhitabhata, J. (1994a) Rearing of Thai pygmy cuttlefish, Idiosepius thailandicus Chot., Okut. & Chai., I: some biological aspects. Technical Paper, Rayong Coastal Aquaculture Station, Coastal Aquaculture Division, Department of Fisheries, no. 23/1994, 19 pp.Google Scholar
Nabhitabhata, J. (1994b) Rearing of Thai pygmy cuttlefish, Idiosepius thailandicus Chot., Okut. & Chai., II: mating and spawning behaviour. Technical Paper, Rayong Coastal Aquaculture Station, Coastal Aquaculture Division, Department of Fisheries, no.25/1994, 19 pp.Google Scholar
Nabhitabhata, J. (1998) Distinctive behaviour of Thai pygmy squid, Idiosepius thailandicus Chotiyaputta, Okutani & Chaitiamvong, 1991. Phuket Marine Biological Center Special Publication 18, 2540.Google Scholar
Nabhitabhata, J. and Nilaphat, P. (1999) Life cycle of cultured pharaoh cuttlefish, Sepia pharaonis Ehrenberg, 1831. Phuket Marine Biological Center Special Publication 19, 2540.Google Scholar
Nabhitabhata, J., Nilaphat, P., Reunreng, A. and Promboon, P. (2004) Rearing, behaviour and growth of sharp-tailed pygmy squid, Idiosepius pygmaeus Steenstrup, 1888. Contribution, Rayong Coastal Fisheries Research and Development Center, no. 27, pp 55.Google Scholar
Nabhitabhata, J., Nilaphat, P., Promboon, P. and Jaroongpattananon, C. (2005) Life cycle of cultured bobtail squid, Euprymna hyllebergi Nateewathana, 1997. Phuket Marine Biological Center Research Bulletin 66, 351365.Google Scholar
Nateewathana, A. (1997) Systematics of Cephalopoda (Mollusca) of the Andaman Sea, Thailand PhD dissertation, University of Aarhus, Aarhus, Denmark.Google Scholar
Natsukari, Y. (1970) Egg-laying behaviour, embryonic development and hatched larva of the pygmy cuttlefish, Idiosepius pygmaeus paradoxus Ortmann. Bulletin of the Faculty of Fisheries, Nagasaki University 30, 1529.Google Scholar
Suwanamala, J., Byern, J.v. and Nabhitabhata, J. (2006) Observation of Idiosepius pygmaeus (Cephalopoda, Idiosepiidae), the pygmy squid, at Klong Bangrong, Phuket Island, Thailand. Phuket Marine Biological Center Research Bulletin 67, 4951.Google Scholar
Tracey, S.R., Steer, M.A. and Pecl, G.T. (2003) Life history traits of the temperate mini-maximalist Idiosepius notoides (Cephalopoda: Idiosepioidea). Journal of the Marine Biological Association of the United Kingdom 83, 12971300.CrossRefGoogle Scholar
Voss, G.L. (1962) South African cephalopods. Transactions of the Royal Society of South Africa 36, 245272.CrossRefGoogle Scholar
Yamamoto, T. (1949) Sexual dimorphism of Loligo bleekeri and Idiosepius paradoxus on their mantle length. Venus 15, 9496.Google Scholar