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Comprehensive Description ( anglais )

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Goneplax rhomboides (Linnaeus, 1758)

Cancer rhomboides Linnaeus, 1758:626.

Goneplax angulata.—Capart, 1951:168, fig. 64, pl. 3: figs. 4, 9 [England], 10.—Barnard, 1954:126 [discussion].—Monod, 1956:354, figs. 462–465.—Pérès, 1964:27, 28, 29.—Maurin, 1968a:19 [Spain]; 1968b:482, 489.

Goneplax rhomboides.—Capart, 1951, pl. 3: fig. 11 [Nice].—Forest and Gantés, 1960:353.—Guinot and Ribeiro, 1962: 63.—Forest and Guinot, 1966:86.—Zariquiey Alvarez, 1968:414, figs. 1e, 138a,b [Spain; references].—Crosnier, 1970:1215 [listed], 1216.—Türkay, 1976a:25 [listed], 38, fig. 28 [Portugal, in part]; 1976b:61 [listed], 71.

Goneplax.—Maurin, 1968a: 14 [Spain].

Goneplax rhomboïdes.—Le Loeuff and Intès, 1968, table 1.

SYNONYMS.—Cancer angulatus Pennant, 1777; Ocypode bispinosa Lamarck, 1801; Ocypode longimana Latreille, 1803.

MATERIAL EXAMINED.—Pillsbury Material: None.

Undaunted Material: Angola: Sta 94, 90 m, 1 (L). Sta 95, 126 m, 1 (L).

Other Material: Madeira: S of Madeira, 32°38′N, 16°49′W, 300 m, triangular and quadrangular dredges, 16 Mar 1976, Onversaagd Sta 102, 1 (L).

Morocco: Off Cap de Mazagan, 33°38′N, 08°45′W, 420 m, Agassiz trawl, 28 Mar 1976, Onversaagd Sta 150, 1 (L). Off Cap Hadid, 31°54′N, 09°54′W, 85 m, muddy sand, 5m beam trawl, 25 Mar 1976, Onversaagd Sta 126, 13 8 (L).

DESCRIPTION.—Capart, 1951:168.

Figures: Capart, 1951, fig. 64, pl. 3: figs. 4, 9, 10, 11; Monod, 1956, figs. 462–465.

Male Pleopod: Capart, 1951, pl. 3: figs. 9 (England), 10 (Angola), 11 (Nice); Monod, 1956, figs. 463–465 (Senegal).

Color: “Couleur général rose, la moitié antérieure de la carapace violacée et plus foncée; pince brun-rouge clair, les doigts violacés, partiellement noirs” (Capart, 1951:169).

DISTRIBUTION.—Eastern Atlantic, from the English Channel to South Africa, including the Mediterranean, in depths from about 30 m to more than 700 m. Monod (1956) reported material from Senegal; since 1956 the species has been recorded from the following:

Madeira: Funchal (Türkay, 1976b).

Morocco: 35°19′N, 06°32′W to 35°28.8′N, 06°39.2′W, 333–360 m; 34°37.4′N, 06°49′W, 180 m; and 34°33.5′N, 06°52′W to 34°39′N, 06°50′W, 175–185 m (Pérès, 1964).

33°19.3′N, 08°39′W, 85 m; 33°17.2′N, 08°34.5′W, 65 m; 31°01′N, 10°16′W, 360–375 m; and 30°20′N, 10°03′W, 255–355 m (Türkay, 1976a). Off Agadir, 60–130 m; off Essaouira, 32°08′N, 09°02′W, 33 m; and 31°37′N, 09°54′W, 70 m (Forest and Gantès, 1960).

Spanish Sahara: Off Cabo Garnet, 400–700 m (Maurin, 1968b).

Mauritania: Off Tamzak (as Tamxat), 200–400 m (Maurin, 1968b).

Ivory Coast: Off Grand-Bassam, 200 m (Le Loeuff and Intès, 1968).

Ghana: 04°37′N, 00°50′W, 90–100 m (Forest and Guinot, 1966).

Angola: Baía dos Tigres, 110 m (Guinot and Ribeiro, 1962). 16°27′S, 11°35′E, 90 m; and 16°37′S, 11°22′E, 126 m (Crosnier, 1970).

Acidops Stimpson, 1871b:110 [p. 137 on separate] [type-species: Acidops fimbriatus Stimpson, 1871, by monotypy; gender: masculine].

Epimelus A. Milne Edwards, 1878:227 [p. 8 on separate] [type-species: Epimelus cessacii A. Milne Edwards, 1878, by monotypy; gender: masculine; name 147 on Official List].
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Manning, Raymond B. and Holthuis, L. B. 1981. "West African Brachyuran crabs." Smithsonian Contributions to Zoology. 1-379. https://doi.org/10.5479/si.00810282.306

Krank pavioù hir ( breton )

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Ar c'hrank pavioù hir (Goneplax rhomboides) a zo ur c'hresteneg hag a vev e reter ar meurvor Atlantel hag er mor Kreizdouar.

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Goneplax rhomboides ( anglais )

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Goneplax rhomboides is a species of crab. It is known by the common name angular crab[1] because of its angular carapace.[2] Although it is also called the square crab,[3] its shell is in fact more trapezoidal than square (or rhomboidal, as its scientific name might suggest).[2] This species is also known as the mud-runner because they are able to run away quickly when threatened.[2]

Description

Goneplax rhomboides is a relatively small (carapace up to 3.7 cm or 1.5 in in diameter), distinctive-looking crab that ranges from yellowish-white, to orange, too reddish to vivid pink in colour.[1][3][4] It has a smooth, quadrangular, strongly convex carapace that is much broader than it is long. It has long, slender pereiopods with margins of propodus and dactylus bristles.[5] It likewise has setae on its antennae and mouthparts.

Females have short chelipeds but the chelipeds of males are long, with the merus portion of the claw considerably longer than the length of their carapaces.[5] G. rhomboides has often been confused with G. clevai, a similar species sharing at least part of its range.[6] Its eyes are on the end of long, retractable eyestalks.[2]

Distribution and habitat

G. rhomboides is found in the northeastern Atlantic Ocean and the Mediterranean Sea from the North Sea to southern Africa and the Indian Ocean coast of South Africa.[6] Waters off Shetland constitute the northern boundary of its range, and in 2008, marine biologists from the University of Gothenburg discovered one intact in the stomach of a cod caught off the coast of Bohuslän which suggests that G. rhomboides has now moved into Swedish waters. A similar discovery a few weeks later in the same location reinforces this conclusion.[1]

This species inhabits muddy habitats similar to those favoured by the Norway lobster[7] and burrows into inshore muddy sand.[8] Its burrows often interconnect in complex patterns with those inhabited by other species of burrowing megafauna such as Callianassa subterranea, Cepola macrophthalma, Lesueurigobius friesii, and Nephrops norvegicus. These multi-species burrow complexes are very common in some localities.[9]

Symbiosis

The setae on the antennae, mouthparts and legs of G. rhomboides are home to Triticella flava, a species of Bryozoa ("moss animal").[9] The short lifespan of these symbiotic moss animals is synchronized so that they produce larvae just before G. rhomboides moults. These larvae then attach to the crab's newly emerged exoskeleton.[2]

References

Wikimedia Commons has media related to Goneplax rhomboides.
  1. ^ a b c Krister Svahn (June 4, 2008). "New crab found in Swedish waters". University of Gothenburg.
  2. ^ a b c d e Sue Scott (January 16, 2007). "British Beasts - mud-runner". Dive Magazine.
  3. ^ a b Chris Proctor (1993). "A mass stranding in Torbay". British Marine Life Study Society.
  4. ^ "Angular crab (Goneplax rhomboides)". The Field Studies Council. Retrieved January 27, 2010.
  5. ^ a b M. J. de Kluijver & S. S. Ingalsuo (2008). "Goneplax rhomboides". Macrobenthos of the North Sea: Crustacea. Universiteit van Amsterdam. Archived from the original on December 6, 2007. Retrieved January 23, 2009.
  6. ^ a b Danièle Guinot & Peter Castro (2007). "A new species of Goneplax Leach, 1814 (Crustacea, Decapoda, Brachyura, Goneplacidae) from the south Atlantic and the western limits of the Indo-West Pacific region, long confused with G. rhomboides (Linnaeus, 1758)" (PDF). Zootaxa. 1577: 17–31. doi:10.11646/zootaxa.1577.1.3.
  7. ^ Rosanna Milligan (January 14, 2009). "Angular crab - Goneplax rhomboides". Wild Ocean Photography: Wildlife and Coastal Images of Scotland. Archived from the original on July 15, 2011.
  8. ^ "Sea Pens and Burrowing Megafauna". U.K. Marine Special Areas of Conservation. Retrieved January 27, 2010.
  9. ^ a b "Community ecology: interactions between species".
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Goneplax rhomboides: Brief Summary ( anglais )

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Ecomare - hoekige krab (DSC 0413).jpg

Goneplax rhomboides is a species of crab. It is known by the common name angular crab because of its angular carapace. Although it is also called the square crab, its shell is in fact more trapezoidal than square (or rhomboidal, as its scientific name might suggest). This species is also known as the mud-runner because they are able to run away quickly when threatened.

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Goneplax rhomboides ( espagnol ; castillan )

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El cangrejo rosado o cangrejo angular (Goneplax rhomboides) es una especie de cangrejo de la familia Goneplacidae, orden Decapoda.

Características y descripción

Su nombre proviene de la forma trapezoidal de su caparazón,[1]​ lo cual hace que también se le conozca como cangrejo cuadrado. Goneplax rhomboides es un cangrejo de aspecto distintivo relativamente pequeño (caparazón de hasta 3,7 cm o 1,5 pulgadas) que varía desde el blanco amarillento hasta el naranja, el rojizo y el rosa vivo.[2]​ Tiene un caparazón liso, cuadrangular, fuertemente convexo que es mucho más ancho que largo. Tiene largos, delgados pereiópodos con márgenes de propodio, también tiene setas en sus antenas y piezas bucales.

Las hembras tienen quelípedos cortos, pero los quelípedos de los machos son largos, con la parte merus de la quela considerablemente más larga que la longitud de sus caparazones. G. rhomboides se ha confunde a menudo con G. clevai, una especie similar que comparte al menos parte de su área de distribución. Sus ojos están en el extremo de largos pedúnculos retráctiles.

Distribución

El cangrejo rosado se encuentra en el noreste del Océano Atlántico y el Mar Mediterráneo desde el Mar del Norte hasta el sur de África y la costa del Océano Índico de Sudáfrica. Las aguas frente a las Islas Shetland constituyen el límite norte de su área de distribución, y en 2008, biólogos de la Universidad de Gotemburgo descubrieron una intacta en el estómago de un bacalao capturado en la costa de Bohuslän, lo que sugiere que G. rhomboides ahora se ha mudado a aguas suecas. Un descubrimiento similar unas semanas después en el mismo lugar refuerza esta conclusión.

Esta especie habita en hábitats fangosos similares a los favorecidos por la cigala y se esconde en la arena fangosa costera. Sus madrigueras a menudo se interconectan en patrones complejos con aquellas habitadas por otras especies de megafauna excavadora como Callianassa subterranea, Cepola macrophthalma, Lesueurigobius friesii y Nephrops norvegicus. Estos complejos de madrigueras de especies múltiples son muy comunes en algunas localidades.

Simbiosis

Las setas de las antenas, las piezas bucales y las patas de G. rhomboides son el hogar de Triticella flava, una especie de briozoo (lit. 'animal musgo'). La corta vida útil de estos animales simbióticos de musgo está sincronizada para que produzcan larvas justo antes de la muda de G. rhomboides. Estas larvas luego se adhieren al exoesqueleto recién emergido del cangrejo.

Galería

Referencias

  1. Krister Svahn (4 de junio de 2008). «New crab found in Swedish waters». University of Gothenburg.
  2. M. J. de Kluijver & S. S. Ingalsuo (2008). «Goneplax rhomboides». Macrobenthos of the North Sea: Crustacea. Universiteit van Amsterdam. Archivado desde el original el 6 de diciembre de 2007. Consultado el 23 de enero de 2009.
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Goneplax rhomboides: Brief Summary ( espagnol ; castillan )

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El cangrejo rosado o cangrejo angular (Goneplax rhomboides) es una especie de cangrejo de la familia Goneplacidae, orden Decapoda.

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Goneplax rhomboides ( basque )

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Goneplax rhomboides Brachyura azpiordenako krustazeo dekapodoa da, Goneplacidae familiakoa.[1] Ipar-ekialdeko Ozeano Atlantikoko kostaldeetan, Itsaso Beltzakoetan eta Mediterraneokoetan bizi da.

Erreferentziak

  1. P. J. Hayward, M. J. Isaac, P. Makings, J. Moyse, E. Naylor & G. Smaldon (1995) Handbook of the Marine Fauna of North-west Europe Oxford University Press 289–461 or. ISBN 978-0-19-854055-7.


Biologia Artikulu hau biologiari buruzko zirriborroa da. Wikipedia lagun dezakezu edukia osatuz.
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Goneplax rhomboides: Brief Summary ( basque )

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Goneplax rhomboides Brachyura azpiordenako krustazeo dekapodoa da, Goneplacidae familiakoa. Ipar-ekialdeko Ozeano Atlantikoko kostaldeetan, Itsaso Beltzakoetan eta Mediterraneokoetan bizi da.

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Goneplax rhomboides ( italien )

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Goneplax rhomboides (Linnaeus, 1758) è un crostaceo decapode appartenente alla famiglia Goneplacidae[1].

Distribuzione e habitat

Proviene dall'est dell'oceano Atlantico e dal Mar Mediterraneo; in particolare è diffuso sulle coste di Irlanda e Regno Unito, sulle coste della Francia e in Sudafrica[1]. Nel Mediterraneo si può trovare soprattutto in Grecia e Israele, mentre è raro nell'Adriatico.

Predilige i fondali ricchi di detriti, fangosi o sabbiosi, anche a profondità di 400 m, dove può scavare e nascondersi[2].

Descrizione

Presenta un corpo di forma rettangolare; il carapace è liscio, rosato o giallastro, di solito pallido, non ricoperto di alghe e di piccole dimensioni, di solito 1,5 cm[3]. Gli arti sono lunghi, spesso rosa e gialli, mentre le chele sono nere, allungate, appuntite e molto sottili. Una caratteristica particolare di questo granchio sono i peduncoli oculari molto più allungati di quelli di altre specie[2].

Note

  1. ^ a b (EN) Fransen, C. (2014), Goneplax rhomboides, in WoRMS (World Register of Marine Species).
  2. ^ a b Rupert Riedl, p. 466.
  3. ^ Marine Species Identification Portal, su species-identification.org. URL consultato il 25 gennaio 2014.

Bibliografia

  • Rupert Riedl, Fauna e flora del Mediterraneo, Franco Muzzio editore, 1983.

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Goneplax rhomboides: Brief Summary ( italien )

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Goneplax rhomboides (Linnaeus, 1758) è un crostaceo decapode appartenente alla famiglia Goneplacidae.

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Goneplax rhomboides ( néerlandais ; flamand )

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Goneplax rhomboides is een krabbensoort uit de familie van de Goneplacidae.[1] De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1758 door Linnaeus.

Bronnen, noten en/of referenties
  1. Fransen, C.; Türkay, M. (2012). Goneplax rhomboides (Linnaeus, 1758). Geraadpleegd via: World Register of Marine Species op http://www.marinespecies.org/aphia.php?p=taxdetails&id=107292
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