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	Provedor de dados Naturalis (2) Autor Critchley, A.T. (1) Essink, K. (1) Kleef, H.L. (1) Thorp, C.H. (1) Palavra-chave 42.76 (2) Invasive biota (2) Polychaeta (2) Biogeography (1) Biogeography. (1) Brown Algae (1) Janua (Dexiospira) brasiliensis (1) Marenzelleria viridis (1) Sargassum muticum (1) Spionidae (1) Spirorbidae (1) Zostera marina (1) Mais... Tipo do documento Article / Letter to the editor (2) Ano 1988 (1) 1985 (1) País Netherlands (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Marenzelleria viridis (Verril, 1873) (Polychaeta: Spionidae) : a new record from the Ems Estuary (The Netherlands / Federal Republic of Germany) Naturalis Essink, K.; Kleef, H.L.. A new record of the North American spionid polychaete Marenzelleria viridis (Verril, 1873) is reported from the Ems Estuary. The species was first found in 1983. From 1983 to 1986 densities increased to a few thousands per m2 while densities of another polychaete, Nereis diversicolor decreased. Juveniles showed peak densities of c. 19000 m2 in muddy sediments. Adults preferred sandy sediments. In Europe M. viridis was recorded recently also in other estuaries: Tay and Forth (Scotland), Weser and Elbe (Fed. Rep. of Germany). There is no reliable clue to the cause of its appearance in North Sea estuaries. Tipo: Article / Letter to the editor Palavras-chave: Polychaeta; Spionidae; Marenzelleria viridis; Invasive biota; Biogeography; 42.76. Ano: 1988 URL: http://www.repository.naturalis.nl/record/317239 Janua (Dexiospira) Brasilliensis (Grube) (Polychaeta: Spirorbidae) : a new record from the South-West Netherlands Naturalis Critchley, A.T.; Thorp, C.H.. A new record in the distribution of the immigrant spirorbid Janua (Dexiospira) brasiliensis is reported from Dutch waters. This is only the second European locality for the serpulid worm, otherwise known from warmer latitudes. J. (D.) brasiliensis (Grube) was found associated with the marine angiosperm Zostera marina L. and the exotic brown alga Sargassum muticum (Yendo) Fensholt, within the protected environment of a saline canal in the south-west Netherlands. Tipo: Article / Letter to the editor Palavras-chave: Polychaeta; Spirorbidae; Janua (Dexiospira) brasiliensis; Brown Algae; Sargassum muticum; Zostera marina; Invasive biota; Biogeography.; 42.76. Ano: 1985 URL: http://www.repository.naturalis.nl/record/317274 Registros recuperados: 2 Primeira ... 1 ... Última

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