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Meiofauna of the Koster-Area, Results from a Workshop at the Sven Lovén Centre for Marine Sciences (Tjärnö, Sweden)

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Meiofauna of the Koster-Area, Results from a Workshop at the Sven Lovén Centre for Marine Sciences (Tjärnö, Sweden) 1 Meiofauna Marina, Vol. 17, pp. 1-34, 16 tabs., March 2009 © 2009 by Verlag Dr. Friedrich Pfeil, München, Germany – ISSN 1611-7557 Meiofauna of the Koster-area, results from a workshop at the Sven Lovén Centre for Marine Sciences (Tjärnö, Sweden) W. R. Willems 1, 2, *, M. Curini-Galletti3, T. J. Ferrero 4, D. Fontaneto 5, I. Heiner 6, R. Huys 4, V. N. Ivanenko7, R. M. Kristensen6, T. Kånneby 1, M. O. MacNaughton6, P. Martínez Arbizu 8, M. A. Todaro 9, W. Sterrer 10 and U. Jondelius 1 Abstract During a two-week workshop held at the Sven Lovén Centre for Marine Sciences on Tjärnö, an island on the Swedish west-coast, meiofauna was studied in a large variety of habitats using a wide range of sampling tech- niques. Almost 100 samples coming from littoral beaches, rock pools and different types of sublittoral sand- and mudflats yielded a total of 430 species, a conservative estimate. The main focus was on acoels, proseriate and rhabdocoel flatworms, rotifers, nematodes, gastrotrichs, copepods and some smaller taxa, like nemertodermatids, gnathostomulids, cycliophorans, dorvilleid polychaetes, priapulids, kinorhynchs, tardigrades and some other flatworms. As this is a preliminary report, some species still have to be positively identified and/or described, as 157 species were new for the Swedish fauna and 27 are possibly new to science. Each taxon is discussed separately and accompanied by a detailed species list. Keywords: biodiversity, species list, biogeography, faunistics 1 Department of Invertebrate Zoology, Swedish Museum of Natural History, Box 50007, SE-104 05, Sweden; e-mail: [email protected], [email protected] 2 Research Group Biodiversity, Phylogeny and Population Studies, Centre for Environmental Sciences, Hasselt University, Campus Diepenbeek, Agoralaan, Building D, B-3590 Diepenbeek, Belgium; e-mail: [email protected] 3 Department of Zoology and Evolutionary Genetics, University of Sassari, Via F. Muroni 25, I-07100 Sassari, Italy; e-mail: [email protected] 4 Department of Zoology, The Natural History Museum, Cromwell Road, London, SW7 5BD, United Kingdom; e-mail: [email protected], [email protected] 5 Division of Biology, Imperial College London, Silwood Park Campus, Ascot Berkshire, SL5 7PY, United Kingdom; e-mail: [email protected] 6 Department of Invertebrate Zoology, Zoological Museum, Museum of Natural History, University of Copen- hagen, Universitetsparken 15, DK-2100 Copenhagen Ø, Denmark; e-mail: [email protected], [email protected], [email protected] 7 Department of Invertebrate Zoology, Biological Faculty, Moscow State University, Moscow 119992, Russia; e-mail: [email protected] 8 German Centre for Marine Biodiversity Research, Senckenberg Research Institute, Südstrand 44, D-26382 Wilhelmshaven, Germany; e-mail: [email protected] 9 Department of Animal Biology, University of Modena and Reggio Emilia, Via Campi 213/d, I-41100 Modena, Italy 10 Bermuda Natural History Museum, PO Box FL145, Flatts FLBX, Bermuda; e-mail: [email protected] * Corresponding author; e-mail: [email protected] Meiofauna Marina, Vol. 17 2 Introduction One part of the project aims to increase our knowl- edge on marine species of the Swedish west coast. In 2001 the Swedish Species Information Centre To accomplish this a series of marine inventories (ArtDatabanken) was commissioned to start a was carried out. However, these were mainly project, designed to run for 20 years, to improve focusing on macrobenthic fauna, and therefore a our taxonomical expertise on Swedish organisms. workshop for which a number of meiobentologists Table 1. Locality data. Samples are numbered according to the date (day in September) and given a running number. Coordinates are given for all localities. In case of dredging samples coordinates of both starting and stopping point are given. No. Date Toponym Coordinates Start Stop (if applicable) 2.1 02-09-07 Saltö, Hasslebukten N 58°52'12.30" E 11°08'28.99" 3.1 03-09-07 Singlefjord N 59°00'47.58" E 11°07'46.56" N 59°00'55.50" E 11°07'15.90" 3.2 03-09-07 Singlefjord, Sandviken N 59°01'08.70" E 11°07'31.74" N 59°01'13.26" E 11°07'30.06" 3.3 03-09-07 Singlefjord N 58°59'54.72" E 11°06'22.08" N 58°59'50.28" E 11°06'15.06" 3.4 03-09-07 ? 3.5 03-09-07 Hällsö N 58°56'36.48" E 11°05'18.84" N 58°56'51.30" E 11°04'51.54" 3.6 03-09-07 Kalkgrund N 58°55'26.46" E 11°02'25.92" N 58°55'27.42" E 11°02'37.38" 4.1 04-09-07 Inre Vattenholmen N 58°52'35.58" E 11°06'39.78" N 58°52'34.62" E 11°06'46.38" 4.2 04-09-07 Brattskär N 58°51'55.52" E 11°04'33.30" 4.3 04-09-07 Brattskär N 58°51'55.52" E 11°04'33.30" 4.4 04-09-07 Saltö N 58°52'04.10" E 11°08'32.00" 4.5 04-09-07 Saltö N 58°52'04.30" E 11°08'32.00" 4.6 04-09-07 Saltö N 58°52'05.86" E 11°08'32.13" 4.7 04-09-07 Saltö N 58°52'10.67" E 11°08'27.54" 4.8 04-09-07 Saltö N 58°52'16.57" E 11°08'44.47" 4.9 04-09-07 Saltö N 58°52'19.14" E 11°08'46.70" 4.10 04-09-07 Saltö N 58°52'21.37" E 11°08'47.75" 5.1 05-09-07 Skåreskär N 58°50'18.54" E 11°02'49.08" N 58°50'16.32" E 11°02'41.52" 5.2 05-09-07 Ullvillarna N 58°49'22.02" E 11°04'24.24" N 58°49'25.62" E 11°04'28.62" 5.3 05-09-07 Ullvillarna N 58°49'23.70" E 11°04'04.38" N 58°49'31.32" E 11°04'08.52" 5.4 05-09-07 Ulvillarna – Segelskären N 58°48'11.34" E 11°00'09.96" N 58°48'04.02" E 11°00'05.46" 5.5 05-09-07 E. Segelskären N 58°47'39.24" E 10°59'32.16" N 58°47'39.54" E 10°59'14.76" 5.6 05-09-07 Segelskären N 58°46'55.02" E 10°59'48.66" N 58°47'00.96" E 10°59'51.66" 5.7 05-09-07 Segelskären N 58°46'32.88" E 10°59'18.36" N 58°46'26.34" E 10°59'04.86" 5.8 05-09-07 Segelskären N 58°54'20.22" E 10°50'07.62" N 58°54'22.80" E 10°49'53.04" 5.9 05-09-07 Grisbådarna N 58°54'51.78" E 10°48'55.38" N 58°54'59.04" E 10°48'51.90" 5.10 05-09-07 Grisbådarna N 58°55'22.50" E 10°49'49.26" N 58°55'10.20" E 10°50'01.92" 5.11 05-09-07 Beach by Saltö Rd N 58°52'41.45" E 11°07'28.57" 5.12 05-09-07 Beach by Saltö Rd N 58°52'41.45" E 11°07'28.57" 5.13 05-09-07 Saltpannebukten N 58°52'27.43" E 11°08'44.87" 5.14 05-09-07 Saltpannebukten N 58°52'27.43" E 11°08'44.87" 5.15 05-09-07 Saltpannebukten N 58°52'28.95" E 11°08'39.74" 5.16 05-09-07 Saltpannebukten N 58°52'28.95" E 11°08'39.74" 5.17 05-09-07 Saltpannebukten N 58°52'28.95" E 11°08'39.74" 5.18 05-09-07 Saltpannebukten N 58°52'33.10" E 11°08'44.89" 5.19 05-09-07 Tjärnö N 58°52'58.06" E 11°10'07.70" 5.20 05-09-07 Tjärnö N 58°52'58.67" E 11°10'07.84" 5.21 05-09-07 Saltö, Hasslebukten N 58°52'08.40" E 11°08'27.84" 5.22 05-09-07 Beach by Saltö Rd N 58°52'41.45" E 11°07'28.57" 6.1 06-09-07 Saltö, Hasslebukten N 58°52'08.40" E 11°08'27.84" 6.2 06-09-07 Saltö, Hasslebukten N 58°52'08.40" E 11°08'27.84" 6.3 06-09-07 Saltö, Hasslebukten N 58°52'08.40" E 11°08'27.84" 6.4 06-09-07 Saltö, Hasslebukten N 58°52'08.40" E 11°08'27.84" 6.5 06-09-07 Saltö, Hasslebukten N 58°52'08.40" E 11°08'27.84" 6.6 06-09-07 Saltö, Hasslebukten N 58°52'08.40" E 11°08'27.84" Willems et al.: Meiofauna of the Koster-area 3 was invited, was organised in September 2007 at Material and methods the Sven Lovén Centre for Marine Sciences on the island of Tjärnö. In September 2007 a meiofauna workshop was In this contribution an overview is given of organised by the Swedish Species Information the results of this two-week meiofauna-workshop, Centre (ArtDatabanken) at The Sven Lovén Centre which was combined with an intensive course for for Marine Sciences on the island of Tjärnö – the PhD-students, in order to train future taxonomists. former Tjärnö Marine Biological Laboratory or A detailed species list for the selected taxa is given, TMBL – on the Swedish west coast.
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