Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ] Print this page

Walter Herwig 1978 (FFS): SeaStars (Echinodermata, Asteroidea)
Danis B, Wilmes J, Jangoux M, 2008. Sea stars from the Walter Herwig FFS expedition. Contribution to the SCAR-Marine Biodiversity Information Network.

Access data
Archived data
Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

This dataset includes information on sea stars collected during one of the Walter Herwig expeditions (1978). Sampling took place during the FFS (Fischereiforschungsschiff) voyage. The expedition focused on the continental shelf of Patagonia, down to the Falklands (Malvinas) Islands. more

The asteroids of the Walter Herwig FFS expedition have been identified in detail, based on the observation of external morphological characters using a binocular microscope. A wide variety of morphological characters was taken into consideration for the identification of the asteroids. For instance, shape and size of the pedicellaria, the skeletal structure (réseau squelettique) and the ossicles that form the mesh (number of spines/ossicle), thickness and aspect of the body wall, the position of the papula, the number of podia rows and the shape of the podia, structure and armature of the marginal plates, number and form of the adambulacral spines as well as the spines of the dental plates, etc. By means of a preexisting identification key of Atlantic asteroids (A.M. Clark, 1994), the observation of the morphological characters permitted to identify the order, the family, the genus and sometimes the species to which the considered individual belonged to. For the time being, there are no existing identification keys for Antarctic asteroids. For this reason, we consulted in addition multiple works of previous Antarctic expeditions (A.M. Clark (1962, 1994), R. Köhler (1906, 1907, 1908, 1911, 1912, 1917, 1920, 1923), W.K. Fisher (1911,1940), Sladen (1889), Mortensen (1932), E. Perrier (1891a), H. Ludwig (1905), Th. Studer (1874), I. Bernasconi (1967, 1964, 1966, 1972), Madsen (1950)) which allowed us to improve the identifications in dubious cases, thanks of their numerous detailed illustrations and descriptions of Antarctic asteroids. Synonymy was resolved by consulting the Register of Antarctic Marine Species (RAMS), that is accessible via internet and that compiles the most recent information about Antarctic asteroid taxonomy (Danis & Jangoux, 2007), delivering us in this way the valid species names.

Biology > Invertebrates
Marine/Coastal, Distribution, PS, Southern Ocean, Asteroidea

Geographical coverage
PS, Southern Ocean [Marine Regions]

Temporal coverage

Taxonomic coverage
Asteroidea [WoRMS]

Occurrence of biota
Presence of biota

Koninklijk Belgisch Instituut voor Natuurwetenschappen (IRScNB/KBIN), moredata creatordata managerdata creator
Koninklijk Belgisch Instituut voor Natuurwetenschappen; Operationele Directie Natuurlijk Milieu (OD Natuur), more

Related datasets
Published in:
AntOBIS: Antarctic Ocean Biodiversity Information System, more
(Partly) included in:
RAS: Register of Antarctic Species, more

Dataset status: Completed
Data type: Data
Data origin: Research: field experiment
Metadatarecord created: 2008-06-13
Information last updated: 2019-04-10
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy