Nutrition of Allotanais hirsutus (Crustacea: Tanaidacea) at Kerguelen Island

Delille, Daniel; Guidi, L.D.; Soyer, Jacques

doi:10.1007/978-3-642-82275-9_53

Cited by 24 publications

(13 citation statements)

References 5 publications

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“…Yet, phylogenetic affinities of tanaidaceans are still poorly understood Wilson 2002, Bird andLarsen 2009). Tanaidaceans can occur at high densities, often exceeding 10000 individuals per m 2 , with some reports of over 140000 individuals per m 2 (Delille et al 1985). Despite the obvious ecological importance displayed by such population densities, tanaidaceans are neglected in most ecological surveys, though several ecologists have acknowledged their relevance (Sokolova 1959, Pires 1980, Tuya et al 2010, for example to monitor environmental impacts (Riera et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Genetic divergence of tanaidaceans (Crustacea: Peracarida) with low dispersal ability

Larsen¹,

Tuya

Froufe³

2014

Sci. Mar.

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Summary:In this study, the phylogeographic patterns of nuclear, ribosomal and mtDNA gene fragments of five tanaidacean species (Zeuxo, Tanaidae) from the Atlantic, Pacific and Mediterranean Sea were investigated. We aimed to interpret results in the framework of current hypotheses on the distribution of small invertebrates with very limited dispersal ability. Evidence for a surprisingly high genetic divergence was found for intertidal tanaidaceans from the North Atlantic. This is a result of poor dispersal potential, as tanaidaceans have direct development, no pelagic stage, and very limited swimming capacity. However, lower genetic divergence was found between an intertidal tanaid species from the North Atlantic and two from the North Pacific, which suggests a scenario of recent colonization following the last glacial maximum. The species Zeuxo normani was found to be a species complex consisting, at least, of Z. normani (California), Z. cf. normani (Japan), Z. cf. normani (Australia), Z. sp. A (Korea), and Z. holdichi (Spain and France). Our results showed that traditional species identification underestimates tanaidacean diversity and that what have been previously perceived as reliable diagnostic morphological characters, are, however, variable and unreliable.Keywords: genetic divergence; morphological differences; 28S; H3; COI; Crustacea; Tanaidacea; Zeuxo. Divergencia genética de tanaidáceos (Crustacea: Peracarida) con baja capacidad de dispersiónResumen: En este estudio, investigamos los patrones filogeográficos de fragmentos de ADN nuclear, ribosómico y mitocondrial de 5 especies de tanaidáceos (Zeuxo, Tanaidae) del Atlántico, Pacífico y Mediterráneo. Nos propusimos interpretar los resultados en el marco de hipótesis sobre la distribución de pequeños invertebrados con limitada capacidad de dispersión. Encontramos evidencia de una sorprendentemente alta diferenciación genética para tanaidáceos del medio intermareal del Atlántico Norte. Esto es resultado de una limitada capacidad de dispersión, ya que los tanaidáceos poseen desarrollo directo, carecen de estadíos pelágicos, y una limitada capacidad natatoria. Sin embargo, encontramos una baja diferenciación genética para una especie de tanaidáceo del Atlántico Norte y dos del Pacífico Norte, lo que sugiere un escenario de reciente colonización tras la última glaciación. La especie Zeuxo normani constituye un complejo de especies que, al menos, agrupa a Z. normani (Califonia), Z. cf. normani (Japón), Z. cf. normani (Australia), Z. sp. A (Corea) y Z. holdichi (España y Francia). Nuestros resultados mostraron que la forma tradicional de identificar tanaidáceos subestima su diversidad y que lo que previamente se consideraron como caracteres morfológicos claramente diferenciadores son, sin embargo, variables y poco fiables.Palabras clave: diferencias genéticas; diferencias morfológicas; 28S; COI; crustáceos, tanaidáceos, Zeuxo.Citation/Como citar este artículo: Larsen K., Tuya F., Froufe E. 2014. Genetic divergence of tanaidaceans (Crustacea: Peracarida) with l...

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Section: Introductionmentioning

confidence: 99%

Genetic divergence of tanaidaceans (Crustacea: Peracarida) with low dispersal ability

Larsen¹,

Tuya

Froufe³

2014

Sci. Mar.

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“…6500 tubes per m' of P. chevreuxi in littoral crevices (Holdich & Jones 1983b), 10,000 individuals per m2 for Turiuis dulongii (as T. cavolinii) in coralline rock pools Zoologicci Sc.riptu I 6 (Johnson & Attramadal 1982a) and 56,000-146,000 individuals per m2 for A . hirsutus inhabiting tubes in sand (Delille et al 1985). The burrowing apseudomorphan Kalliapseudes crassus has been found at densities of 54,800 m2 in sediments in deep channels in a tidal lagoon associated with San Quintin Bay, Baja California (Barnard 1970).…”

Section: Discussionmentioning

confidence: 99%

“…As with those of other tanaids, the mancas of tubiculous tanaids are initially provided with yolk on which to feed (Johnson & Attramadal1982a), but, unlike other species, they arc able to progress later on to feed on diatoms, bacteria, detritus and maternal faeces within the tube (Marchand 1971). Most adult tanaids probably emerge partially or wholly from their tubes for feeding (Johnson & Attramadal 1982a), but some species may feed on microorganisms growing in the tube itself or which are swept in with the current of water produced by the tanaid (Delille et al 1985). The latter authors suggest that sediment-dwelling bacteria provide the main food source for dense colonies of tube-dwelling Allotmais hirsutus.…”

Section: Discussionmentioning

confidence: 99%

The tubicolous habit amongst the Tanaidacea (Crustacea, Peracarida) with particular reference to deep‐sea species

Hassack

Holdich

1987

Zoologica Scripta

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Although tanaids are thought of as a largely tubicolous order of peracarids, relatively few species have in fact been recorded from tubes. However, many species of the genus Typhlotanais recently collected from deep‐sea sediments are tubicolous and attach or incorporate a wide range of materials to a mucous tube formed of secretions from glands within the pereonal cavity. These include mud particles, sand grains, sponge spicules and foraminiferan tests. Silica and calcium usually form the dominant ions in the tubes. The various types of tube and their occupants are described and their roles discussed.

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“…Tanaidaceans can Occur a t high densities, often exceeding 10 000 individuals/m' (Woodin, 1974;Johnson & Attramadal, 1982;Highsmith, 1982Highsmith, , 1983Bailey-Brock, 1984;Modlin & Harris, 1989), with reports of over 140 000 individuals/m2 (Delille, Guidi & Soyer, 1985;Krasnow, 1992). Despite the obvious ecological importance displayed by such population sizes, tanaidaceans are neglected in most ecological surveys.…”

Section: Ecological Implicationsmentioning

confidence: 99%

Morphological and molecular investigation of polymorphism and cryptic species in tanaid crustaceans: implications for tanaid systematics and biodiversity estimates

Larsen

2001

Zoological Journal of the Linnean Society

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A combination of traditional taxonomic procedures and molecular techniques has provided new insight into the problems of cryptic species and sexual and ontogenetic polymorphism in the Tanaidacea. Using polymerase chain reaction and DNA markers, three cryptic species of Paratanais were identified. PCR primers were used to amplify the divergent internal transcribed spacers (ITS) of these species. Restriction digestion of the amplified rDNA generated species specific DNA banding. Male and five female stages of Paratanais maleficus sp. nov. and two other new species, I? malignus and €? perturbatius, are described. Morphological variation, both sexual and ontogenetic, was found in several generic characters of Paratanais and required the diagnosis to be modified. The identification of three undescribed cryptic species from a single microhabitat in a well studied, shallow water and easily accessible locality, demonstrate that the biodiversity of tanaid crustacean is significantly underestimated.

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Nutrition of Allotanais hirsutus (Crustacea: Tanaidacea) at Kerguelen Island

Cited by 24 publications

References 5 publications

Genetic divergence of tanaidaceans (Crustacea: Peracarida) with low dispersal ability

Genetic divergence of tanaidaceans (Crustacea: Peracarida) with low dispersal ability

The tubicolous habit amongst the Tanaidacea (Crustacea, Peracarida) with particular reference to deep‐sea species

Morphological and molecular investigation of polymorphism and cryptic species in tanaid crustaceans: implications for tanaid systematics and biodiversity estimates

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