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dc.contributor.authorPenchaszadeh, P.
dc.contributor.authorTeso, V.
dc.contributor.authorPastorino, G.
dc.date.accessioned2020-06-08T17:41:46Z
dc.date.available2020-06-08T17:41:46Z
dc.date.issued2017
dc.identifier.doihttps://dx.doi.org/10.1016/j.dsr.2017.10.011
dc.identifier.urihttp://hdl.handle.net/1834/17152
dc.description.abstractThe gastropods Odontocymbiola pescalia and Provocator corderoi and their egg capsules were collected by the R/V Puerto Deseado from the Mar del Plata Submarine Canyon (~ 37°53′S, at depths of 291–1404 m) and from Burdwood Bank (~ 54°27′S, 128–785 m). Odontocymbiola pescalia egg capsules measured 15.67 ± 3.38 mm in diameter. They were subspherical in shape with an external calcareous layer. Each egg capsule contained 3–5 embryos and white material as extra embryonic food. Embryos grew to a size of up to 9.3 ± 1.1 mm in mean shell length before hatching as crawling juveniles. The spawn of P. corderoi consisted of a single dome shaped egg capsule of 14.17 ± 1.5 mm in diameter, attached to hard substrata by a basal membrane with a rounded outline. A curved semilunar furrow (seam) on one side of the capsules was always present. The number of embryos per capsule was 2–6. Embryos hatched as crawling juveniles with a shell length of 5.9 ± 0.6 mm. The size and number of whorls in the hatchling shell suggested a slow rate of development, akin to many other deep-sea invertebrates. The egg capsules and reproductive development strategies of both species were compared with those from other congeneric representatives.en_US
dc.language.isoenen_US
dc.titleSpawn in two deep-sea volute gastropods (Neogastropoda: Volutidae) from southwestern Atlantic watersen_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.titleDeep-Sea Research Part I: Oceanographic Research Papersen_US
dc.bibliographicCitation.volume130en_US
dc.description.statusPublisheden_US
dc.format.pagerangepp.55-62en_US
dc.type.refereedRefereeden_US
refterms.dateFOA2021-01-30T18:47:52Z


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