Viviparity and intragonadal cannibalism in the diminutive sea stars Patiriella vivipara and P. parvivipara (family Asterinidae)

@article{Byrne1996ViviparityAI,
  title={Viviparity and intragonadal cannibalism in the diminutive sea stars Patiriella vivipara and P. parvivipara (family Asterinidae)},
  author={Maria Byrne},
  journal={Marine Biology},
  year={1996},
  volume={125},
  pages={551-567}
}
  • M. Byrne
  • Published 1 May 1996
  • Biology
  • Marine Biology
The Australian asterinid sea stars Patiriella vivipara and P. parvivipara have the most derived lifehistory pattern seen in the Asteroidea. They are simultaneous hermaphrodites, have intragonadal fertilisation, and incubate their young in the gonads to an advanced juvenile stage. As characteristic of brooding echinoderms, P. vivipara and P. parvivipara are diminutive, with P. parvivipara being the smallest known sea star. These species have the most restricted distribution known in the… 

Evolution of Intragonadal Development in the Diminutive Asterinid Sea Stars Patiriella vivipara and P. parvivipara with an Overview of Development in the Asterinidae.

TLDR
The range of life histories seen in Patiriella is atypical of asteroid genera and supports the contention that the evolution of viviparity and other modes of modified development in the Asteroidea follows phylogenetic lineages.

Intragonadal incubation of progeny in three viviparous asterinid sea stars that differ in offspring provisioning, lecithotrophy vs matrotrophy

TLDR
In three asterinid sea star species that incubate their young in the gonads, the number of progeny increased with adult size, indicating that there are no allometric constraints on offspring incubation.

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Changes in the intraovarian brooding sea cucumber Oneirophanta mutabilis affinis lead us to suggest that there is a role for the genital haemal sinus in providing nutrition during the brooding period in viviparous echinoderms.

The distribution and biology of Patiriella vivipara (Echinodermata: Asteroidea: Asterinidae) a sea star endemic to southeast Tasmania

TLDR
The asterinid sea star Patiriella vivipara is endemic to southeast Tasmania and has a highly restricted distribution, being only known from four locations, and gives birth to juveniles through the year with a period of enhanced reproduction from November to January.

Viviparity in the Sea Star Cryptasterina hystera (Asterinidae)—Conserved and Modified Features in Reproduction and Development

  • M. Byrne
  • Biology
    The Biological Bulletin
  • 2005
TLDR
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TLDR
Important future research outcomes on consequences of atypical life-history traits may be allowed by continued research on these seastars but only if their populations are able to persist within the small number of boulder-fields where they occur.

Oogenic strategies in the evolution of development in Patiriella (Echinodermata: Asteroidea)

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Comparison of protein profiles, histochemistry and ultrastructure of the eggs of Patiriella indicated that the major changes underlying acquisition of a large egg involved enhanced deposition of lipid in some species and an increase in yolk reserves in others.

Reproduction and Larval Morphology of Broadcasting and Viviparous Species in the Cryptasterina Species Complex

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Selfing in Parvulastra exigua: an asterinid sea star with benthic development

TLDR
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Reproductive strategy of the semelparous clam Gaimardia bahamondei (Bivalvia, Gaimardiidae)

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TLDR
The range of life histories seen in Patiriella is atypical of asteroid genera and supports the contention that the evolution of viviparity and other modes of modified development in the Asteroidea follows phylogenetic lineages.

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