Signs of multiple spawning in Graneledone pacifica (Cephalopoda: Octopodidae)
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769, meer
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| Trefwoorden |
Cells > Sexual cells > Eggs > Oocytes
Properties > Biological properties > Fecundity
Spawning
Graneledone boreopacifica Nesis, 1982 [WoRMS]
Marien/Kust |
| Abstract |
The examination of five females of the deep-benthic octopus Graneledone pacifica - a large-egged species: mature ovarian egg length >20 mm - showed that their developing oocyte size-distribution was normal in two specimens at an early maturation stage (largest oocyte length=3 mm), bimodal in two specimens at a more advanced stage (largest oocyte length=6 and 8 mm, respectively), three-modal in the farthest advanced stage specimen (largest oocyte length=14 mm). According to the literature, the simultaneous occurrence of oocyte cohorts at different oogenic stages, including a distinct cohort of oocytes at an advanced maturing stage in one specimen, suggests that G. pacifica is a multiple spawner. |
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