Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway

Two new amphipods for Norway Melita nitida and Corophium multisetosum (Crustacea; Amphipoda) were registered in brackish waters in the Tista Estuary in Halden, southeastern Norway. Both species were found in the samples from Tista’s outlet into the Idde Fjord, C. multisetosum in the beach zone and...

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Autores principales:	Ingvar Spikkeland, Jens Petter Nilssen
Formato:	article
Lenguaje:	EN
Publicado:	Norwegian University of Science and Technology 2021
Materias:	Crustacea invasive species dispersal range expansion Amphipoda Zoology QL1-991
Acceso en línea:	https://doaj.org/article/13594ce2c38f45afaae75aae4783f134
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spelling	oai:doaj.org-article:13594ce2c38f45afaae75aae4783f1342021-12-01T14:25:10ZAlien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway10.5324/fn.v41i0.39571502-48731891-5396https://doaj.org/article/13594ce2c38f45afaae75aae4783f1342021-11-01T00:00:00Zhttps://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/3957https://doaj.org/toc/1502-4873https://doaj.org/toc/1891-5396 Two new amphipods for Norway Melita nitida and Corophium multisetosum (Crustacea; Amphipoda) were registered in brackish waters in the Tista Estuary in Halden, southeastern Norway. Both species were found in the samples from Tista’s outlet into the Idde Fjord, C. multisetosum in the beach zone and M. nitida at about 4 m depth. Melita nitida is a North American species first found in Europe in the Netherlands in 1998, and since then dispersed into the Baltic Sea via the Kiel Canal and now also found several places on the German Baltic Sea coast and in the Black Sea. Corophium multisetosum was collected even before the 1920s in Western Europe, and is considered native for Europe, whereas its relationship to North America is more ambiguous. From the British Isles and the Netherlands, it seems to have spread to Germany, Poland, Denmark and Sweden, and at present Norway. Until now the two species were found in small numbers at the Norwegian sites and their influence on the total benthic community is probably negligible in this initial phase. The Tista Estuary in Halden apparently appears to be a hotspot for alien brackish water species in Norway. Generally estuaries, with their combination of brackish water jointly with their unsaturated ecological niches and intensive international ship traffic, seem to possess the highest potential infection rate for aquatic systems with alien acrozoobenthic species. Ingvar SpikkelandJens Petter NilssenNorwegian University of Science and TechnologyarticleCrustaceainvasive speciesdispersalrange expansionAmphipodaZoologyQL1-991ENFauna Norvegica, Vol 41 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Crustacea invasive species dispersal range expansion Amphipoda Zoology QL1-991
spellingShingle	Crustacea invasive species dispersal range expansion Amphipoda Zoology QL1-991 Ingvar Spikkeland Jens Petter Nilssen Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway
description	Two new amphipods for Norway Melita nitida and Corophium multisetosum (Crustacea; Amphipoda) were registered in brackish waters in the Tista Estuary in Halden, southeastern Norway. Both species were found in the samples from Tista’s outlet into the Idde Fjord, C. multisetosum in the beach zone and M. nitida at about 4 m depth. Melita nitida is a North American species first found in Europe in the Netherlands in 1998, and since then dispersed into the Baltic Sea via the Kiel Canal and now also found several places on the German Baltic Sea coast and in the Black Sea. Corophium multisetosum was collected even before the 1920s in Western Europe, and is considered native for Europe, whereas its relationship to North America is more ambiguous. From the British Isles and the Netherlands, it seems to have spread to Germany, Poland, Denmark and Sweden, and at present Norway. Until now the two species were found in small numbers at the Norwegian sites and their influence on the total benthic community is probably negligible in this initial phase. The Tista Estuary in Halden apparently appears to be a hotspot for alien brackish water species in Norway. Generally estuaries, with their combination of brackish water jointly with their unsaturated ecological niches and intensive international ship traffic, seem to possess the highest potential infection rate for aquatic systems with alien acrozoobenthic species.
format	article
author	Ingvar Spikkeland Jens Petter Nilssen
author_facet	Ingvar Spikkeland Jens Petter Nilssen
author_sort	Ingvar Spikkeland
title	Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway
title_short	Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway
title_full	Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway
title_fullStr	Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway
title_full_unstemmed	Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway
title_sort	alien amphipods (arthopoda; crustacea) in the tista estuary, halden, southeastern norway
publisher	Norwegian University of Science and Technology
publishDate	2021
url	https://doaj.org/article/13594ce2c38f45afaae75aae4783f134
work_keys_str_mv	AT ingvarspikkeland alienamphipodsarthopodacrustaceainthetistaestuaryhaldensoutheasternnorway AT jenspetternilssen alienamphipodsarthopodacrustaceainthetistaestuaryhaldensoutheasternnorway
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Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway

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