Distribution This species is very abundant at the Oyster Ground, where it forms a substantial part of the infaunal biomass. G. cirrhosa...
Distribution This species is very abundant at the Oyster Ground, where it forms a substantial part of the infaunal biomass. G. cirrhosa also occurs in the Delta area (Grevelingenmeer, Ooster- and Westerschelde). The species is (almost) absent from the Southern Bight and the Wadden Sea. [details]
Read, G.; Fauchald, K. (Ed.) (2019). World Polychaeta database. Gattyana cirrhosa (Pallas, 1766). Accessed at: http://www.marinespecies.org/polychaeta/aphia.php?p=taxdetails&id=130749 on 2020-08-08
original description(ofGattyana imbricata Treadwell, 1926)Treadwell, Aaron L. 1926. Polychaetous annelids collected by Captain R.A. Bartlett in Alaska in 1924, with descriptions of new species. American Museum Novitates, 223: 1-8.[details]
original description(ofPolynoe scabriuscula Sars, 1861)Sars, M. (1861). Om de ved Norges Kyste forekommende Arter af Annelideslaegten Polynoe. Forhandlinger fra Videnskabs-Selskabet i Christiania, 1861: 54-62.[details]
original description(ofAphrodita viridis Montagu, 1813)Montagu, G. (1813). Descriptions of several new or rare animals, principally marine, discovered on the South coast of Devonshire. <em>Transactions of the Linnean Society of London.</em> 11(1): 1–26, plates 1–5., available online athttp://biodiversitylibrary.org/page/756542 page(s): 18; note: Montagu noted similarity to A. cirrhosa Pallas, and indeed it is thought a synonym [details]
context source (Schelde)Maris, T.; Beauchard, O.; Van Damme, S.; Van den Bergh, E.; Wijnhoven, S.; Meire, P. (2013). Referentiematrices en Ecotoopoppervlaktes Annex bij de Evaluatiemethodiek Schelde-estuarium Studie naar “Ecotoopoppervlaktes en intactness index”. <em>Monitor Taskforce Publication Series, 2013-01. NIOZ: Yerseke.</em> 35 pp. (look up in IMIS) [details]
context source (BeRMS 2020)Bio-environmental research group; Institute of Agricultural and Fisheries research (ILVO), Belgium; (2015): Macrobenthos monitoring in function of the Water Framework Directive in the period 2007-2009.[details]
basis of recordBellan, G. (2001). Polychaeta, <i>in</i>: Costello, M.J. <i>et al.</i> (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. <em>Collection Patrimoines Naturels.</em> 50: 214-231. (look up in IMIS) [details]
additional sourceFauchald, K. (1977). The polychaete worms, definitions and keys to the orders, families and genera. <em>Natural History Museum of Los Angeles County: Los Angeles, CA (USA), Science Series.</em> 28:1-188., available online athttp://www.vliz.be/imisdocs/publications/123110.pdf[details]
Present Inaccurate Introduced: alien Containing type locality
From other sources
Biology Breeding probably takes place in spring (March-June) and the larvae develop in the water column. The species spawns several times during its life. It can reach an age of at least 4-5 years.
In the subtidal parts of the area, G. cirrhosa is almost exclusively found in the tubes of the polychaete Chaetopterus variopedatus. Other studies have recorded the species from (empty) tubes of other polychaetes such as Lagis koreni and Amphitrite johnstoni, and in Arenicola burrows. G. cirrosa, like all polynoids, is considered a predatory carnivore. Small crustaceans, echinoderms, polychaetes, gastropods, sponges and hydroids have been mentioned as prey items. (Hartmann-Schröder, 1971; Wolff, 1973; Curtis, 1977; Fauchald & Jumars, 1979; Hayward & Ryland, 1990). [details] Distribution This species is very abundant at the Oyster Ground, where it forms a substantial part of the infaunal biomass. G. cirrhosa also occurs in the Delta area (Grevelingenmeer, Ooster- and Westerschelde). The species is (almost) absent from the Southern Bight and the Wadden Sea. [details] HabitatG. cirrhosa shows a preference for the muddier types of sediment as found in the Oyster Ground. [details] Morphology This species has a flattened body that is oval in outline. lt is composed of up to 38 segrnents and reaches 40 mm in length. The dorsal surface is covered with fifteen pairs of soft scales (elytra). These elytra are covered with minute spines and have a fringe of papillae along the outer edge. The head bears four eyes, one median and two lateral antennae. The elytra have a distinct dark spot in the centre (Hartmann-Schröder, 1971; Hayward & Ryland, 1990). [details]