Sperm storage and mating in the deep-sea squid Taningia danae Joubin, 1931 (Oegopsida: Octopoteuthidae) |
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| Authors: | Hendrik Jan T Hoving Marek R Lipinski John J Videler Kat S R Bolstad |
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| Institution: | (1) Ocean Ecosystems, Centre for Ecological and Evolutionary Studies, University of Groningen, P.O. Box 14, 9750 AA Haren, The Netherlands;(2) Department of Environmental Affairs and Tourism, Private Bag X2, Roggebaai 8012, Cape Town, 8000, South Africa;(3) Earth & Oceanic Sciences Research Institute, Auckland University of Technology, Private Bag 92006, Auckland, 1142, New Zealand |
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| Abstract: | Spermatangium implantation is reported in the large oceanic squid Taningia danae, based on ten mated females from the stomachs of sperm whales. Implanted spermatangia were located in the mantle, head and
neck (on both sides) or above the nuchal cartilage, under the neck collar and were often associated with incisions. These
cuts ranged from 30 to 65 mm in length and were probably made by males, using the beak or arm hooks. This is the first time
wounds facilitating spermatangium storage have been observed in the internal muscle layers (rather than external, as observed
in some other species of squid). The implications of these observations for the mating behavior of the rarely encountered
squid T. danae are discussed. |
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