Tanaidacea

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Roger N. Bamber - One of the best experts on this subject based on the ideXlab platform.

  • Another inordinate fondness†: diversity of the Tanaidacean fauna of Australia, with description of three new taxa
    Journal of Natural History, 2013
    Co-Authors: Roger N. Bamber, Magdalena Błażewicz-paszkowycz
    Abstract:

    The shallow-water Tanaidacean fauna of the Bass Strait has been the subject of recent intensive studies. The present paper extends this work into the deeper waters of the region, describing two new species and one new genus. The new species of the genus Paradoxapseudes has a combination of three maxillule palp setae, no plumose setae on the basis of pereopod 1 nor proximal serration on the antennal peduncle. The second species represents a new genus of the family Anarthruridae, having six marginal setae on the third maxilliped palp article and spines on the merus and carpus of the anterior pereopods. The high diversity of Tanaidacea in Australian waters is discussed. In particular, we conclude that Australian coasts suffer a diversity of immigration routes, have sufficient marine longevity, and afford such a diversity of available niches to have allowed multiple colonization and subsequent allopatric speciation of Tanaidacea. http://www.zoobank.org/urn:lsid:zoobank.org:pub:EE309A5A-E06D-416F-95BD-4C8D0D2BEB97

  • Tanaidaceans (Crustacea: Peracarida) from the SoJaBio joint expedition in slope and deeper waters in the Sea ofJapan
    Deep-sea Research Part Ii-topical Studies in Oceanography, 2012
    Co-Authors: Magdalena Błażewicz-paszkowycz, Roger N. Bamber, Piotr Jóźwiak
    Abstract:

    Abstract Fifteen species of Tanaidacea, one apseudomorph and fourteen tanaidomorphs, are described from the collections of the SoJaBio Expedition from the slope and deeper waters of the Sea of Japan. Ten species are new to science: one in the genus Pseudosphyrapus , one in Tanaopsis , two in Akanthophoreus , one as a new genus in the family Colletteidae, one as a new genus in the family Anarthruridae, and four species of Pseudotanais . One species of the last family is represented by insufficient material for a full description and designation. Another species, probably in the genus Torquella, is not identified to species level owing to insufficient, poor condition material. Four species in the collection are recorded for only the second time, in two cases allowing valuable redescription of previously inadequately analyzed taxa. The list of Tanaidacea from the Russian coasts of the Sea of Japan, based on published records and the SoJaBio material, includes twenty taxa, although the identities of at least four of them are doubtful.

  • on some shallow water tanaidomorpha crustacea peracarida Tanaidacea of chilean fjords with description of a new species of zeuxoides sieg 1980
    Zootaxa, 2012
    Co-Authors: Patricia Esquete, Roger N. Bamber, Cristian Aldea
    Abstract:

    Magellanic Tanaidacean faunas have been mainly studied in the Magellan Strait and Beagle Channel, the latter restricted to bot-toms deeper than 40m. As a result, the shallow rocky bottoms of the Magellanic fjords remain largely under-studied, and theirTanaidacean diversity is poorly known. In this study, Tanaidacean species sampled from shallow rocky bottoms of Chilean fjordsare investigated, and morphological and taxonomic considerations included. A new species of the Tanaidae, Zeuxoides tronco- soi sp. nov. is described. The genus Leptochelia is recorded for the first time in Chile, and the distribution of Pancoloides lito- ralis is extended northwards. Specimens collected of Pancoloides litoralis and Nototanais dimorphus present morphologicaldifferences with previous descriptions, which are at present attributed to intraspecific variation derived from geographical iso-lation among populations, until sufficient material can be examined to determine what constitutes interspecific and intraspecific variation.

  • new tanaidomorph Tanaidacea crustacea peracarida from submarine mud volcanoes in the gulf of cadiz north east atlantic
    Zootaxa, 2011
    Co-Authors: Magdalena Blazewiczpaszkowycz, Roger N. Bamber, Marina R. Cunha
    Abstract:

    Faunal collections from mud-volcano sites in the Gulf of Cadiz, at depths between 355 and 3061 m, have revealed a high diversity (and in some cases high density) of Tanaidaceans. The present study reports on nine new tanaidomorph species from eight different genera from this material. These include representatives of genera known elsewhere from non-ventassociated deep-sea habitats, but notably only the second and third (respectively) representatives of two genera, Coalecerotanais and Cristatotanais, known previously from cold-seep-habitats in the Gulf of Mexico. The genus Spinitanaopsis is synonymized with Cristatotanais. The Tanaidacean records to date from hydrothermal vents or cold seeps are collated as a context for the present material. The possibilities of habitat-endemism in Tanaidacean taxa associated with reducing environments and their biogeography are discussed.

  • A new genus of a new Austral family of paratanaoid Tanaidacean (Crustacea: Peracarida: Tanaidacea), with two new species.
    Memoirs of Museum Victoria, 2009
    Co-Authors: Magdalena Błażewicz-paszkowycz, Roger N. Bamber
    Abstract:

    Blazewicz-Paszkowycz M. and Bamber, R.N. 2009. A new genus of a new Austral family of paratanaoid Tanaidacean (Crustacea: Peracarida: Tanaidacea), with two new species.. Memoirs of Museum Victoria 66: 1–15. During analysis of Tanaidacean material collected from the Bass Strait, Victoria, Australia, in 1965 and 1974, seven specimens of a new species were found, quite distinct from but showing close affi nities to the aberrant Antarctic paratanaoid species Mirandotanais vorax. More recent sampling in 2008 on Ningaloo Reef, Western Australia, discovered two specimens of a second new species, showing closer affi nity to the Victoria species. Both new species are described herein, and the Australian taxa are separated into a distinct genus owing in particular to the morphology of their mouthparts, with features consistent between the two but quite distinct from Antarctic M. vorax. A new family is erected to include both genera.

Magdalena Błażewicz-paszkowycz - One of the best experts on this subject based on the ideXlab platform.

  • First record of Tanaidacea (Crustacea) from a deep-sea coral reef in the Gulf of Guinea.
    Zootaxa, 2015
    Co-Authors: Aleksandra Jakiel, Anna Stępień, Piotr Jóźwiak, Bjørn Serigstad, Magdalena Błażewicz-paszkowycz
    Abstract:

    Four undescribed species of Tanaidacea were discovered during a baseline monitoring program conducted off the coast of Ghana. The specimens came from a deep-water reef largely composed of the ahermatypic coral, Lophelia pertusa. The Tanaidacean material was collected during November 2012 onboard the RV Dr Fridtjof Nansen using a van Veen grab in depths of between 375 and 386 m. Three of the new species described herein are tanaidomorphans belonging to the genera Bathyleptochelia (Leptocheliidae), Pseudotanais (Pseudotanaidae) and Cryptocopoides (Cryptocopidae). The fourth species, an apseudomorphan, belongs to Calozodion (Metapseudidae), a genus hitherto known only from shallow waters (

  • Diversity and distribution of Tanaidacea (Crustacea) along the Victoria Land Transect (Ross Sea, Southern Ocean)
    Polar Biology, 2014
    Co-Authors: Magdalena Błażewicz-paszkowycz, Jacek Siciński
    Abstract:

    The Victoria Land Transect Project was established for the assessment of a possible latitudinal environmental gradient. During the expedition on the board of the RV Italica carried out in February 2004, four areas of the eastern Ross Sea sublittoral were investigated. The diversity and distribution of 2,678 individuals of Tanaidacea found in 18 samples from a depth range of 84–515 m using a Rauschert dredge were analyzed. Fourty species of Tanaidaceans almost exclusively of the suborder Tanaidomorpha were identified; 14 of them were apparently new for science; only five species had been found in the Ross Sea before. Two main groups of the samples, with two distinct Tanaidacean assemblages associated with the different bottom sediments (sand vs. mosaic bottom deposits), were revealed by cluster analysis and non-metric multidimensional scaling. The sample arrangement in the cluster and ordination analyses did not correlate with the depth or the latitudinal gradient, but it indicated a relationship with the quality of bottom deposits. It is also assumed that the structure of the assemblages might be determined by local habitat conditions. At two stations at Coulman Island, a distinct value of Tanaidacean diversity is attributed to the destructive effect of passing icebergs on the benthic groups documented in earlier studies. A similar pattern of distribution and diversity had been observed for cumacean distribution. Analysis of the distribution confirms the previously observed preferences of Nototanais dimorphus and Paratyphlotanais armatus for sandy sediments, and Nototanais antarcticus and Akanthophoreus cf. multiserratoides for muddy bottoms.

  • Another inordinate fondness†: diversity of the Tanaidacean fauna of Australia, with description of three new taxa
    Journal of Natural History, 2013
    Co-Authors: Roger N. Bamber, Magdalena Błażewicz-paszkowycz
    Abstract:

    The shallow-water Tanaidacean fauna of the Bass Strait has been the subject of recent intensive studies. The present paper extends this work into the deeper waters of the region, describing two new species and one new genus. The new species of the genus Paradoxapseudes has a combination of three maxillule palp setae, no plumose setae on the basis of pereopod 1 nor proximal serration on the antennal peduncle. The second species represents a new genus of the family Anarthruridae, having six marginal setae on the third maxilliped palp article and spines on the merus and carpus of the anterior pereopods. The high diversity of Tanaidacea in Australian waters is discussed. In particular, we conclude that Australian coasts suffer a diversity of immigration routes, have sufficient marine longevity, and afford such a diversity of available niches to have allowed multiple colonization and subsequent allopatric speciation of Tanaidacea. http://www.zoobank.org/urn:lsid:zoobank.org:pub:EE309A5A-E06D-416F-95BD-4C8D0D2BEB97

  • Tanaidaceans (Crustacea: Peracarida) from the SoJaBio joint expedition in slope and deeper waters in the Sea ofJapan
    Deep-sea Research Part Ii-topical Studies in Oceanography, 2012
    Co-Authors: Magdalena Błażewicz-paszkowycz, Roger N. Bamber, Piotr Jóźwiak
    Abstract:

    Abstract Fifteen species of Tanaidacea, one apseudomorph and fourteen tanaidomorphs, are described from the collections of the SoJaBio Expedition from the slope and deeper waters of the Sea of Japan. Ten species are new to science: one in the genus Pseudosphyrapus , one in Tanaopsis , two in Akanthophoreus , one as a new genus in the family Colletteidae, one as a new genus in the family Anarthruridae, and four species of Pseudotanais . One species of the last family is represented by insufficient material for a full description and designation. Another species, probably in the genus Torquella, is not identified to species level owing to insufficient, poor condition material. Four species in the collection are recorded for only the second time, in two cases allowing valuable redescription of previously inadequately analyzed taxa. The list of Tanaidacea from the Russian coasts of the Sea of Japan, based on published records and the SoJaBio material, includes twenty taxa, although the identities of at least four of them are doubtful.

  • A new genus of a new Austral family of paratanaoid Tanaidacean (Crustacea: Peracarida: Tanaidacea), with two new species.
    Memoirs of Museum Victoria, 2009
    Co-Authors: Magdalena Błażewicz-paszkowycz, Roger N. Bamber
    Abstract:

    Blazewicz-Paszkowycz M. and Bamber, R.N. 2009. A new genus of a new Austral family of paratanaoid Tanaidacean (Crustacea: Peracarida: Tanaidacea), with two new species.. Memoirs of Museum Victoria 66: 1–15. During analysis of Tanaidacean material collected from the Bass Strait, Victoria, Australia, in 1965 and 1974, seven specimens of a new species were found, quite distinct from but showing close affi nities to the aberrant Antarctic paratanaoid species Mirandotanais vorax. More recent sampling in 2008 on Ningaloo Reef, Western Australia, discovered two specimens of a second new species, showing closer affi nity to the Victoria species. Both new species are described herein, and the Australian taxa are separated into a distinct genus owing in particular to the morphology of their mouthparts, with features consistent between the two but quite distinct from Antarctic M. vorax. A new family is erected to include both genera.

Kim Larsen - One of the best experts on this subject based on the ideXlab platform.

Keiichi Kakui - One of the best experts on this subject based on the ideXlab platform.

  • Unexpected low genetic differentiation between Japan and Bering Sea populations of a deep-sea benthic crustacean lacking a planktonic larval stage (Peracarida: Tanaidacea)
    Biological Journal of the Linnean Society, 2020
    Co-Authors: Keiichi Kakui, Hidetaka Nomaki, Hironori Komatsu, Yoshihiro Fujiwara
    Abstract:

    Abstract Information on the extent, diversity and connectivity of populations is lacking for most deep-sea invertebrates. Species of the order Tanaidacea (Crustacea), one of the most diverse and abundant macrofaunal groups in the deep sea, are benthic, lack a planktonic larval stage, and thus would be expected to have narrow distributional ranges. However, with molecular evidence from the COI gene, we show here that the deep-sea Tanaidacean Carpoapseudes spinigena has a distributional range spanning at least 3700 km, from off northern Japan to the south-eastern Bering Sea. Living individuals found in a sediment core indicated that the species is a sedentary burrower. COI analyses revealed a low level of genetic diversity overall, and low differentiation (p-distance, 0.2–0.8%) between the Japan and Bering Sea populations. One hypothesis to explain the low genetic diversity over a broad region is that the Japan population was founded by individuals transported by ocean currents from the Bering Sea. However, due to limited data, other explanations cannot be ruled out. Our results indicate that continued sampling is of fundamental importance to understanding how genetic and taxonomic diversity originate and are maintained in the deep sea.

  • Sexual system in the Tanaidacean Falsapseudes bowmani (Crustacea: Malacostraca: Peracarida)
    Invertebrate Biology, 2019
    Co-Authors: Keiichi Kakui, Chizue Hiruta, Daisuke Uyeno
    Abstract:

    With more than 40,000 species, Malacostraca is the most diverse crustacean class. Most malacostracans are gonochoristic, but simultaneous hermaphrodites are also known. Tanaidacea is one of two malacostracan orders that includes simultaneously hermaphroditic species; so far, simultaneous hermaphroditism has been confirmed externally and internally in only two Tanaidacean species, both in the genus Apseudes (Apseudidae). Here we show, through external and internal morphological observations of fixed specimens, that the apseudid Falsapseudes bowmani is a simultaneous hermaphrodite, making Falsapseudes the second Tanaidacean genus in which simultaneous hermaphroditism has been confirmed both externally and internally. In this species, the epistome (a projection on the clypeus) was thick and elongate in large specimens but was thin and spiniform in smaller specimens; the brooding of eggs or embryos was observed only in thin‐epistome individuals, although a pair of ovaries was confirmed in both thick‐ and thin‐epistome individuals. This suggests that individuals with a thick epistome may act as males while also retaining the female reproductive organs.

  • Published collection records of konariine Tanaidaceans ver. 20181101
    2018
    Co-Authors: Keiichi Kakui
    Abstract:

    This is a list of all published collection records of the subfamily Konariinae (Crustacea: Tanaidacea: Paratanaoidea: Leptocheliidae) as of November 1, 2018. It is source for the distribution map (Fig. 1) in Kakui, Uyeno, and Naruse (submitted)

  • Tube construction by a Tanaidacean crustacean using a novel mucus secretion system involving the anal opening
    Zoological letters, 2017
    Co-Authors: Keiichi Kakui, Chizue Hiruta
    Abstract:

    Background Animals in diverse aquatic groups construct tubes using mucus and filaments, and the acquisition of this capability has likely played an important role in the evolution and diversification of small benthic animals. Tanaidacea is a crustacean order that includes tube-constructing species, most of which belong to Tanaidoidea and Paratanaoidea, with a few in Kalliapseudidae (Apseudoidea). Two previously reported systems used in tube construction are the thoracic-gland system, with secretory glands in thoracic segments (pereonites), and the pereopodal-gland system, with glands in pereopods.

  • Review of the Taxonomy, Diversity, Ecology, and Other Biological Aspects of Order Tanaidacea from Japan and Surrounding Waters
    Species Diversity of Animals in Japan, 2016
    Co-Authors: Keiichi Kakui
    Abstract:

    The order Tanaidacea is a group of benthic crustaceans, most of which are small, up to a few millimeters long. Tanaidaceans are distributed worldwide, with more than 1200 described species. Following the first taxonomic paper on a Japanese Tanaidacean in 1936, many researchers have studied their taxonomy, morphology, reproductive biology, or ecology in the waters around Japan. This chapter presents a brief introduction to Tanaidaceans and then reviews what is known of their systematics (taxonomy and phylogeny), biology (including feeding habits, phenology, morphology, reproductive modes, parasites, predators), and ecology in Japan. The chapter ends with a summary and prospects for future research. The general conclusion is that Tanaidaceans have been understudied, both globally and within Japan; the 104 nominal species reported from around Japan and the 1200 species reported globally likely represent a fraction of the actual diversity. The phylogeny of Tanaidaceans is largely unresolved at all taxonomic levels. Recent, significant new discoveries concerned with herbivory, selfing, skin-digging activity in holothuroid hosts, possible sound production, and tube building suggest that much remains to be learned about their general biology.

Geoffrey Allan Boxshall - One of the best experts on this subject based on the ideXlab platform.

  • global diversity of cumaceans Tanaidaceans crustacea cumacea Tanaidacea in freshwater
    Hydrobiologia, 2008
    Co-Authors: Damia Jaume, Geoffrey Allan Boxshall
    Abstract:

    Cumacea and Tanaidacea are marginal groups in continental waters. Although many euryhaline species from both groups are found in estuaries and coastal lagoons, most occur only temporarily in non-marine habitats, appearing unable to form stable populations there. A total of 21 genuinely non-marine cumaceans are known, mostly concentrated in the Ponto-Caspian region, and only four tanaids have been reported from non-marine environments. Most non-marine cumaceans (19 species) belong in the Pseudocumatidae and appear restricted to the Caspian Sea (with salinity up to 13%) and its peripheral fluvial basins, including the northern, lower salinity zones of the Black Sea (Sea of Azov). There are nine Ponto-Caspian genera, all endemic to the region. Only two other taxa (in the family Nannastacidae) occur in areas free of any marine-water influence, in river basins in North and South America. Both seem able to survive in waters of raised salinity of the lower reaches of these fluvial systems; but neither has been recorded in full salinity marine environments. The only non-marine Tanaidacean thus far known lives in a slightly brackish inland spring in Northern Australia. The genus includes a second species, from a brackish-water lake at the Bismarck Archipelago, tentatively included here as non-marine also. Two additional species of Tanaidaceans have been reported from non-marine habitats but both also occur in the sea.

  • Global diversity of cumaceans & Tanaidaceans (Crustacea: Cumacea & Tanaidacea) in freshwater
    Hydrobiologia, 2007
    Co-Authors: Damia Jaume, Geoffrey Allan Boxshall
    Abstract:

    Cumacea and Tanaidacea are marginal groups in continental waters. Although many euryhaline species from both groups are found in estuaries and coastal lagoons, most occur only temporarily in non-marine habitats, appearing unable to form stable populations there. A total of 21 genuinely non-marine cumaceans are known, mostly concentrated in the Ponto-Caspian region, and only four tanaids have been reported from non-marine environments. Most non-marine cumaceans (19 species) belong in the Pseudocumatidae and appear restricted to the Caspian Sea (with salinity up to 13%) and its peripheral fluvial basins, including the northern, lower salinity zones of the Black Sea (Sea of Azov). There are nine Ponto-Caspian genera, all endemic to the region. Only two other taxa (in the family Nannastacidae) occur in areas free of any marine-water influence, in river basins in North and South America. Both seem able to survive in waters of raised salinity of the lower reaches of these fluvial systems; but neither has been recorded in full salinity marine environments. The only non-marine Tanaidacean thus far known lives in a slightly brackish inland spring in Northern Australia. The genus includes a second species, from a brackish-water lake at the Bismarck Archipelago, tentatively included here as non-marine also. Two additional species of Tanaidaceans have been reported from non-marine habitats but both also occur in the sea.

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