Fecundity and reproductive strategies in deep-sea incirrate octopuses (Cephalopoda: Octopoda).
Data(s) |
01/01/2007
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Resumo |
Coleoid cephalopods show flexibility in their reproductive strategies or mode of spawning, which can range from simultaneous terminal spawning over a short period at the end of the animal’s life to continuous spawning over a long period of the animal’s life. Although a simultaneous terminal spawning strategy is typical of shallow water temperate octopuses, it is not known whether deep-sea octopods would have the same reproductive strategy. The reproductive strategies and fecundity were investigated in nine species of deep-sea incirrate octopuses: Bathypolypus arcticus, Bathypolypus bairdii, Bathypolypus ergasticus, Bathypolypus sponsalis, Bathypolypus valdiviae, Benthoctopus levis, Benthoctopus normani, Benthoctopus sp., and Graneledone verrucosa (total n = 85). Egg-length frequency graphs and multivariate analysis (principal components analysis) suggest that B. sponsalis has a synchronous ovulation pattern and therefore a simultaneous terminal spawning strategy. Although a simultaneous terminal spawning strategy is most likely for B. levis and B. normani, the egg-length frequency graphs and multivariate analysis also suggest a greater variation in egglengths which could lead to spawning over an extended period. |
Identificador |
http://dx.doi.org/10.1007/s00227-006-0365-6 http://www.scopus.com/inward/record.url?scp=33845650160&partnerID=8YFLogxK |
Idioma(s) |
eng |
Direitos |
info:eu-repo/semantics/restrictedAccess |
Fonte |
Barratt , I M , Johnson , M & Allcock , L 2007 , ' Fecundity and reproductive strategies in deep-sea incirrate octopuses (Cephalopoda: Octopoda). ' Marine Biology , vol 150(3) , no. 3 , pp. 387-398 . DOI: 10.1007/s00227-006-0365-6 |
Palavras-Chave | #/dk/atira/pure/subjectarea/asjc/1100/1104 #Aquatic Science |
Tipo |
article |