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Biology ( Inglês )

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The sea lemon feeds mainly on the bread-crumb sponge Halichondria panicea and other sponges (4). It is hermaphroditic, possessing both male and female organs. Breeding occurs in the spring (5); thousands of eggs are produced in a long mass, which is attached to rocks and looks like a coiled whitish or yellowish ribbon (5). The larvae are free-swimming, and hatch after around four weeks. This pelagic stage lasts for around three months; larvae then undergo metamorphosis and become adults. It is thought that metamorphosis is triggered by the larva coming into contact with Halichondria sponges (5). Individuals are known to have lived to around 1 year of age, although they may live longer (5).
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Conservation ( Inglês )

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Conservation action has not been targeted at this species.
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Description ( Inglês )

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The sea lemon, Archidoris pseudoargus (also known as Archidoris tuberculata in much of Europe) (3) is a common sea slug around Britain (4). It has an oval shaped body (2) and varies greatly in colour. Yellow, pink, green, white and brown forms are known, and there is also a brilliant red variety known as Archidoris pseudoargus var. flammea (4). It is usually mottled to a degree, which may act as camouflage (4). The upper surface of the sea lemon is covered in bumps called 'tubercles', and a ring of 8-9 retractable feathery gills is located towards the rear (2). This species may be confused with the similar Geitodoris planata, which can be identified by the presence of brown spots on the underside, and star-like spots on the upper surface (4).
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Habitat ( Inglês )

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Occurs on the lower shore underneath large rocks, and extends offshore to depths of around 300m (2).
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Range ( Inglês )

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Common around the coastline of Britain (2); elsewhere it is found from Iceland to the Mediterranean (4).
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Status ( Inglês )

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Common and widespread (2).
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Threats ( Inglês )

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Not currently threatened (2).
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Meerzitrone ( Alemão )

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Die Meerzitrone (Doris pseudoargus) ist eine Schnecke aus der Unterordnung der Nacktkiemer, die man im Mittelmeer, im Atlantik, im Ärmelkanal und in der Nordsee findet.

Merkmale

Die Meerzitrone hat einen ovalen Körper mit zwei Kopffühlern und zurückziehbarem Kiemenkranz. Die Farbe ist variabel, aber meist gelb, unterbrochen von unregelmäßigen braunen und roten Zeichnungen, der Kiemenkranz dagegen ist einfarbig, gelb rot, blau oder auch grau. Die Meerzitrone wird bis zu 12 Zentimetern lang. Sie ernährt sich von Schwämmen, eine besondere Vorliebe hat sie dabei für den Brotkrumenschwamm (Halichondria panicea). Die Meerzitrone ist gut gegen Feinde geschützt. Erstens sorgt ihre Färbung für perfekte Tarnung, zweitens drückt sie, sobald sie doch gegriffen und verschluckt wurde, ein Sekret aus der Haut, das den Feind zum Ausspeien bringt.

Literatur

  • Louise Schmekel & Adolf Portmann: Opisthobranchia des Mittelmeeres: Nudibranchia und Sacoglossa (Fauna e flora del Golfo di Napoli, 40). 410 S., Berlin, Springer Verlag 1982 ISBN 3-540-11354-1

Weblinks

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Meerzitrone: Brief Summary ( Alemão )

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Die Meerzitrone (Doris pseudoargus) ist eine Schnecke aus der Unterordnung der Nacktkiemer, die man im Mittelmeer, im Atlantik, im Ärmelkanal und in der Nordsee findet.

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Doris pseudoargus ( Inglês )

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Doris pseudoargus is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Dorididae.[2]

Distribution

This species was described from Le Havre, Seine-Maritime, France. A neotype was designated in 2002 based on a specimen from Locmariaquer, Atlantic coast of France.[3] It has been reported from Norway south to the Mediterranean Sea.[4] It can be found on the lower shore, and offshore to 300 m.[5]

Description

Doris pseudoargus can reach 120 mm in length. It is oval and firm. The mantle is variously mottled and blotched with yellow, green, brown, and red and coarsely tuberculate. Its rhinophores are short and conical.[5]

Ecology

Doris pseudoargus mainly feeds on the sponge Halichondria panicea.[5]

References

  1. ^ Rapp W. L. von (1827). Ueber das Molluskengeschlecht Doris und Beschreibung einiger neue Arten derselben. Nova Acta Academiae Caesareae Leopoldino-Carolinae Naturae Curiosorum 13 (2): 516-522, page(s): 519
  2. ^ Gofas, S. (2005). Doris pseudoargus. In: MolluscaBase (2016). Accessed through: World Register of Marine Species on 2016-12-03.
  3. ^ Valdés Á. (2002). A phylogenetic analysis and systematic revision of the cryptobranch dorids (Mollusca, Nudibranchia, Anthobranchia). Zoological Journal of the Linnean Society. 136: 535-636.
  4. ^ Rudman, W.B., 2001 (June 12) Archidoris pseudoargus (Rapp, 1827). [In] Sea Slug Forum. Australian Museum, Sydney.
  5. ^ a b c Hayward, Peter J.; Ryland, John S. (2017). Handbook of the Marine Fauna of North-West Europe (2nd ed.). Oxford, UK: Oxford University Press. pp. 530–531. ISBN 978-0-19-954944-3.

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Doris pseudoargus: Brief Summary ( Inglês )

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Doris pseudoargus is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Dorididae.

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Doris pseudoargus ( Francês )

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Doris pseudoargus, communément appelé Citron de mer ou Doris citron, est une espèce de mollusques de l'ordre des nudibranches et de la famille des Dorididae.

Description

Doris pseudoargus est un mollusque gastéropode marin sans coquille. D'une longueur pouvant atteindre 120 mm, ce nudibranche doridien possède un manteau généralement jaune, parfois rose brun ou vert, ponctué de taches et de tubercules plus foncés. Sa tête est dotée de deux rhinophores lamellés et rétractiles, et, près de sa queue, ses branchies rétractiles, au nombre de huit à dix, composent une sorte de buisson de couleur blanche ou jaune pâle[3],[4].

Noms vernaculaires

Dans de nombreuses langues, le nom vernaculaire de Doris pseudoargus correspond à la traduction du français « Citron de mer ».

  • Citron de mer ou Doris citron, dans le monde francophone[3].
  • Sea lemon, dans le monde anglophone[3].
  • Limón de mar, dans le monde hispanophone[3].
  • Meerzitrone, dans le monde germanophone[3].
  • Citroenslak, dans le monde néerlandophone[3].

Habitat

Doris pseudoargus prospère sur les fonds marins, en zone intertidale, jusqu'à 300 m de profondeur[3],[4].

Distribution

La limace de mer Doris pseudoargus se rencontre dans l'Atlantique Nord-Est (mer de Norvège, mer du Nord, mer d'Irlande et Manche, notamment) et en mer Méditerranée[3],[5].

Notes et références

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Doris pseudoargus: Brief Summary ( Francês )

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Doris pseudoargus, communément appelé Citron de mer ou Doris citron, est une espèce de mollusques de l'ordre des nudibranches et de la famille des Dorididae.

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Doris pseudoargus ( Italiano )

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Doris pseudoargus Rapp, 1827 è un mollusco nudibranchio appartenente alla famiglia Dorididae.[1]

Biologia

Si nutre di spugne delle specie Adocia cinerea, Dendoryx incrustans, Esperella aegagropila, Grantia compressa, Halichondria panicea, Hymeniacidon perleve, Hymeniacidon sanguinea, Tethya aurantia.[2]

Note

  1. ^ (EN) MolluscaBase eds. 2020, Doris pseudoargus Rapp, 1827, in WoRMS (World Register of Marine Species). URL consultato il 7/7/2020.
  2. ^ (EN) Gary R. McDonald, James W. Nybakken, A List of the Worldwide Food Habits of Nudibranchs, in University of California Santa Cruz.

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Doris pseudoargus: Brief Summary ( Italiano )

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Doris pseudoargus Rapp, 1827 è un mollusco nudibranchio appartenente alla famiglia Dorididae.

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Doris pseudoargus ( Neerlandês; Flamengo )

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Doris pseudoargus is een slakkensoort uit de familie van de Dorididae.[1] De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd in 1827 door Rapp.

Bronnen, noten en/of referenties
  1. Gofas, S. (2012). Doris pseudoargus Rapp, 1827. Geraadpleegd via: World Register of Marine Species op http://www.marinespecies.org/aphia.php?p=taxdetails&id=181228
Geplaatst op:
09-03-2013
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