New species, occurrence records and observations of predation by deep-sea Asteroidea (Echinodermata) from the North Atlantic by NOAA ship Okeanos Explorer

Exploratory cruises by the NOAA Ship Okeanos Explorer have resulted in a substantial contribution in our understanding of deep-sea echinoderm biodiversity, biology, and ecology in the North Atlantic. This includes the description and in situ feeding observations of two, new corallivorous goniasterid...

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Bibliographic Details
Published in:Zootaxa
Main Author: MAH, CHRISTOPHER L.
Format: Article in Journal/Newspaper
Language:English
Published: Mangolia Press 2020
Subjects:
Echinodermata
Goniasteridae
Poraniidae
Astropectinidae
Myxasteridae
Pedicellasteridae
Ophidiasteridae
Solasteridae
corallivory
spongivory
agonism
in situ observations
deep-sea
North Atlantic
Online Access:https://www.mapress.com/j/zt/article/view/zootaxa.4766.2.1
https://doi.org/10.11646/zootaxa.4766.2.1
Description
Summary:Exploratory cruises by the NOAA Ship Okeanos Explorer have resulted in a substantial contribution in our understanding of deep-sea echinoderm biodiversity, biology, and ecology in the North Atlantic. This includes the description and in situ feeding observations of two, new corallivorous goniasterid species, Evoplosoma nizinskiae n. sp. and Sibogaster bathyheuretor n. sp. Significant in situ observations include a synchronous feeding event including multiple goniasterid asteroids and a cidaroid urchin on a large demosponge, providing new data for understanding echinoderm feeding behavior, including agonistic behavior, in deep-sea settings and new, in situ feeding observations for 28 deep-sea species including the myxasterid Pythonaster atlantidis, the korethrasterid Remaster palmatus and the poorly understood hippasterine goniasterids, Gilbertaster caribaea and Sthenaster emmae.

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