Biology of the swimming acorn worm Glandiceps hacksi from the Seto Inland Sea of Japan

Zoological Science
Makoto UrataSusumu Ohtsuka

Abstract

The enteropneust hemichordate Glandiceps hacksi inhabits the muddy bottoms of the intertidal to subtidal zones of Koguno-shima Island, located in the central part of the Seto Inland Sea of Japan. Monthly collections from October 2005 to September 2007 revealed that their spawning occurs once a year, in the latter half of May. Parameters such as density and sex ratio, as well as the type of sediment, were also examined. Worm behavior and type of burrows revealed that G. hacksi are infaunal burrowers. Autotomy and regeneration of their posterior regions, and swimming behavior were also observed in an aquarium environment. This is the first comprehensive study on the biology of G. hacksi, the swimming acorn worm.

References

May 5, 2000·Biomolecular Engineering·P S StaytonR E Stenkamp
Jun 1, 2004·Zoological Science·Makoto Urata, Masaaki Yamaguchi
Aug 29, 2006·PLoS Biology·Christopher J LoweJohn Gerhart
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Citations

Apr 10, 2014·Evolution & Development·Makoto UrataMasaaki Yamaguchi
Oct 9, 2015·EvoDevo·Giovanni AnnonaSalvatore D'Aniello
Jun 27, 2019·Biological Reviews of the Cambridge Philosophical Society·Zachary EmbertsPhilip W Bateman
Nov 17, 2020·Frontiers in Cell and Developmental Biology·Cinzia FerrarioLoriano Ballarin

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