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Reproduction

Sea stars shed their eggs and sperm into the water, and fertilization occurs externally, producing a swimming, bilaterally symmetrical larva. The larva settles and undergoes a sessile (attached) period while metamorphosing into the free-living, radially symmetrical adult form. A single female may produce over 2 million eggs in one spawn, but the eggs and larvae form part of the plankton on which many marine animals feed, and few survive.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

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Related content from HighBeam Research on: sea star: Reproduction

Viviparity in the sea star Cryptasterina hystera (Asterinidae)--conserved and modified features in reproduction and development. (The Biological Bulletin)

Effects of Food Concentration and Availability on the Incidence of Cloning in Planktotrophic Larvae of the Sea Star Piaster ochraceus. (The Biological Bulletin)

THE EFFECTS OF TEMPERATURE AND FOOD LEVEL AND QUALITY ON THE INCIDENCE OF CLONING IN PLANKTOTROPHIC LARVAE OF THE SEA STAR PISASTER OCHRACEUS.(Brief Article) (Journal of the Alabama Academy of Science)

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The Deep Sea Bed: Its Physics, Chemistry and Biology. (Science)

Discovery and cross-amplification of microsatellite polymorphisms in asterinid sea stars.(Report) (The Biological Bulletin)

Morphological and genetic variation indicate cryptic species within Lamarck's little sea star, Parvulastra (=Patiriella) exigua. (The Biological Bulletin)

Reproduction and larval morphology of broadcasting and viviparous species in the Cryptasterina species complex. (The Biological Bulletin)

Is the Deep Sea on a Diet?(research on food supply and demand on the deep-sea floor) (Science)

The Paradox of Voluntary Motherhood. (Social Theory and Practice)

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