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| Registros recuperados: 2.235 | |
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| Arrigoni, Roberto; Benzoni, Francesca; Huang, Danwei; Fukami, Hironobu; Chen, Chaolun Allen; Berumen, Michael L.; Hoogenboom, Mia; Thomson, Damian P.; Hoeksema, Bert W.; Budd, Ann F.; Zayasu, Yuna; Terraneo, Tullia I.; Kitano, Yuko F.; Baird, Andrew H.. |
| The scleractinian family Lobophylliidae is undergoing a major taxonomic revision thanks to the combination of molecular and morphological data. In this study, we investigate the evolutionary relationships and the macro- and micromorphology of six nominal coral species belonging to two of the nine molecular clades of the Lobophylliidae, clades A and B, and of Symphyllia wilsoni, a lobophylliid species analyzed from a molecular point of view for the first time. Sequence data from mitochondrial DNA (COI and the intergenic spacer between COI and l-rRNA), and nuclear DNA (histone H3 and ITS region) are used to generate robust molecular phylogenies and a median-joining haplotype network. Molecular results are strongly in agreement with detailed observations of... |
| Tipo: Text |
Palavras-chave: Coral; Evolution; Phylogeny; Systematics; Taxonomy. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00585/69699/67565.pdf |
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| Labrune, Céline; Lavesque, Nicolas; Bonifácio, Paulo; Hutchings, Pat. |
| A new species of Terebellidae, Pista colini sp. n., has been identified from the harbour of Banyuls-sur-Mer, north-western Mediterranean Sea. This new species was found in very high densities, exclusively in gravelly sand deposited manually, and was not found in the original source habitat of the gravel. This species is characterized by the colour of the ventral shields with pinkish anterior part and a blood red posterior part in live specimens, a pair of unequal-sized plumose branchiae inserted on segment II and anterior thoracic neuropodia with long-handled uncini. The presence of long-handled uncini even in the smallest specimens constitutes the major difference between Pista colini sp. n. and other Pista species with a single pair of branchiae such as... |
| Tipo: Text |
Palavras-chave: Annelida; Gravel deposits; Harbour; Pista colini sp. n.; Taxonomy; Terebellida. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00489/60062/63347.pdf |
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| Chomerat, Nicolas; Saburova, Maria; Bilien, Gwenael; Al-yamani, Faiza. |
| A new benthic dinoflagellate species, Prorocentrum bimaculatum sp. nov., is studied from Kuwaits marine sediments, based on detailed morphological and molecular data. Cells are large, oblong oval in shape. They are 49.955.3 mu m long and 38.443.2 mu m wide. The ornamentation of this new species is peculiar, and characterized by smooth valves with large pores (0.320.50 mu m) scattered on their surface, except in two circular patches of similar to 15 mu m in diameter, devoid of ornamentation and located on both sides of the valve centers. The periflagellar area is widely triangular, located in a moderate excavation of the right valve, and comprises nine platelets. The intercalary band of P. bimaculatum is smooth. The molecular phylogenetic position of this... |
| Tipo: Text |
Palavras-chave: Arabian Gulf; Benthic dinoflagellates; Kuwait; Molecular phylogeny; Morphology; Nuclear DNA; Prorocentrum; RDNA; SEM; Taxonomy. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00066/17756/15698.pdf |
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| Sánchez, Nuria; Pardos, Fernando; Arbizu, Pedro Martínez. |
| Kinorhynch specimens were studied from abyssal sediment samples collected during seven cruises at the Clarion-Clipperton Fracture Zone (Eastern Central Pacific), a vast area that will be mined for polymetallic nodules in a near future. This study is the first in a series focused on kinorhynchs mainly collected at the German zone following requirements of the International Seabed Authority (ISA), who demands identification of fauna associated with nodules previous to the concession of the exploitation license. A total of 18 species were found, of which three new Echinoderidae species are described herein. Cephalorhyncha polunga sp. nov. is easily discriminated from its congeners by the presence of pointed and prominent tergal extensions together with... |
| Tipo: Text |
Palavras-chave: Cephalorhyncha; Cyclorhagida; Echinoderidae; Echinoderes; Meiofauna; Meristoderes; Taxonomy. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00502/61330/64902.pdf |
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| Saburova, Maria; Chomerat, Nicolas. |
| A new photosynthetic, sand-dwelling marine dinoflagellate, Ailadinium reticulatum gen. et sp. nov., is described from the Jordanian coast in the Gulf of Aqaba, northern Red Sea, based on detailed morphological and molecular data. A. reticulatum is a large (53–61 μm long and 38–48 μm wide), dorsoventrally compressed species, with the epitheca smaller than the hypotheca. The theca of this new species is thick and peculiarly ornamented with round to polygonal depressions forming a foveate-reticulate thecal surface structure. The Kofoidian thecal tabulation is APC (Po, cp), 4′, 2a, 6′′, 6c, 4s, 6′′′, 1p, 1′′′′ or alternatively it can be interpreted as APC, 4′, 2a, 6′′, 6c, 4s, 6′′′, 2′′′′. The plate pattern of A. reticulatum is noticeably different from... |
| Tipo: Text |
Palavras-chave: Benthic dinoflagellates; Dinophyceae; Gulf of Aqaba; Jordan; LSU rDNA; Molecular phylogeny; Morphology; Red Sea; SSU rDNA; Taxonomy. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00226/33678/38183.pdf |
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| Pierrot-bults, Ac. |
| The Census of marine life programme (CoML) is expected to generate a large amount of information on the diversity, distribution, and abundance of marine communities, many of them new or poorly known. Institutions such as natural history museums can play a crucial role in providing the necessary tools to allow the CoML to advance knowledge in the fields of marine systematics and biogeography. These institutions can contribute taxonomic expertise to provide quality-controlled identifications of species; specimen collections to allow for cross-checking of occurrences and a historical context for new data; information, both paper and electronic, on taxonomy, ecology and other topics to enable researchers to review past work; education opportunities to inform... |
| Tipo: Text |
Palavras-chave: Taxonomie; Biogéographie; Communautés marines; Taxonomy; Biogeography; Marine communities. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00322/43300/43036.pdf |
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| Chomerat, Nicolas; Bilien, Gwenael. |
| A new benthic phototrophic dinoflagellate is described from sediments of a tropical marine cove at Martinique Island and its micromorphology is studied by means of light and electron microscopy. The cell contains small golden-brown chloroplasts and the oval nucleus is posterior. It is laterally compressed, almost circular in shape when viewed laterally. It consists of a small epitheca tilted toward the right lateral side and a larger hypotheca. In the left view, the cingulum is more anterior and the epitheca is reduced. The cingulum is displaced and left-handed. This organism is peculiar in having no apical pore and its thecal plate arrangement is 2 ' 1a 7 '' 5c 3s 5 ''' 1 ''''. The plates are smooth with small groups of pores scattered on their surface.... |
| Tipo: Text |
Palavras-chave: Caribbean; Benthic; Dinophyceae; SEM; Phylogeny; Morphology; Taxonomy; Martinique; RDNA. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00195/30622/29458.pdf |
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| Cepeda, Diego; Pardos, Fernando; Zeppilli, Daniela; Sánchez, Nuria. |
| Cold seep areas are extremely reduced habitats with spatiotemporal variation of hydrocarbon-rich fluid seepage, low oxygen levels, and great habitat heterogeneity. Cold seeps can create circular to ellipsoid shallow depressions on the seafloor called pockmarks. We investigated two selected pockmarks, characterized by different gas emission, and two sites outside these geological structures at the Mozambique Channel to understand whether and how their environmental conditions affect the kinorhynch fauna in terms of density, richness, and community composition. A total of 11 species have been found living in the studied area, of which three are new species: Fissuroderes cthulhu sp. nov., Fujuriphyes dagon sp. nov., and Fujuriphyes hydra sp. nov. Densities... |
| Tipo: Text |
Palavras-chave: Cold seeps; Deep sea; Ecology; Kinorhynchs; Meiofauna; Diversity; Taxonomy. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00648/75992/76894.pdf |
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| Ahyong, Shane T.. |
| The deep-sea squat lobster, Munidopsis serricornis (Loven, 1852), originally described from the north-eastern Atlantic, has long been considered near cosmopolitan with numerous reports also from the western Pacific and northern Indian Ocean. These Indo-West Pacific records are reviewed along with new material from seamounts throughout the region. Munidopsis serricornis sensu stricto is restricted to the Atlantic Ocean. Six new species are described from the Indo-West Pacific: M alcocki sp. nov. from the central to western Indian Ocean; M atlantis sp. nov., from the Southwest Indian Ridge; M macphersoni sp. nov. from the Austral Islands, French Polynesia; M spiridonovi sp. nov. from the western Indian Ocean; M nias sp. nov. from southern Indonesia and the... |
| Tipo: Text |
Palavras-chave: Anomura; Taxonomy; Subantarctic; Pacific Ocean; Indian Ocean; Seamounts. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00495/60620/64102.pdf |
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| Komai, Tomoyuki; Segonzac, Michel. |
| A taxonomic review of the two genera of the family Alvinocarididae (Decapoda: Caridea), Rimicaris Williams and Rona, 1986 and Chorocaris Martin and Hessler 1990, is presented based on study of type materials and/or supplemental material from recent collections. Two species of Rimicaris, R. exoculata Williams and Rona 1986 and R. kairei Watabe and Hashimoto 2002, and three species of Chorocaris, C. chacei Williams and Rona 1986, C. vandoverae Martin and Hessler 1990, and C. paulexa Martin and Shank 2005, are recognized. All species are exclusively associated with deep-water hydrothermal community. Close relationship between the two genera is confirmed by morphological characters, but the monophyly of Chorocaris is not corroborated. An examination of a good... |
| Tipo: Text |
Palavras-chave: Hydrothermal vents; Taxonomy; Chorocaris; Rimicaris; Alvinocarididae; Caridea; Decapoda; Crustacea. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-3926.pdf |
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| Lavesque, Nicolas; Daffe, Guillemine; Bonifacio, Paulo; Hutchings, Pat. |
| A new species of Eunicidae, Marphysa victori sp. n., has been identified from Arcachon Bay, Bay of Biscay, NE Atlantic. This new species, belonging to the sanguinea complex, is characterised by branchiae with long filaments from chaetigers 26–34, the presence of four types of pectinate chaetae with first ones present from chaetiger 2, a large number of both pectinate chaetae and compound spinigers, and the pygidium with only one pair of pygidial cirri. An identification key for European species of the genus Marphysa is provided. |
| Tipo: Text |
Palavras-chave: Bait worms; Eastern Atlantic; France; Marphysa; Molecular; Morphology; Polychaeta; Taxonomy. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00411/52235/52966.pdf |
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| Van Nieuwenhove, Nicolas; Potvin, Eric; Heikkila, Maija; Pospelova, Vera; Mertens, Kenneth; Masure, Edwige; Kucharska, Malgorzata; Yang, Eun Jin; Chomerat, Nicolas; Zajaczkowski, Marek. |
| We restudied the morphological complex comprising the cyst-based species Spiniferites elongatus/Spiniferites frigidus/Rottnestia amphicavata. We reviewed existing studies, and acquired new morphometric measurements of recent cysts from across the Northern Hemisphere, scanning electron microscopy (SEM) observations of cysts from Barents Sea surface sediments, and genetic analyses of cysts from the Beaufort Sea. The measurements suggest that populations and morphospecies cannot be distinguished based on morphometric criteria. Furthermore, sequential sediment trap samples from Hudson Bay reveal that morphological variation can occur at the same location over a few weeks, arguing against a uniform morphological response to environmental parameters. The SEM... |
| Tipo: Text |
Palavras-chave: Single-cell PCR; Spiniferites ellipsoideus; Spiniferites frigidus; Rottnestia amphicavata; Morphologic variability; Taxonomy. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00471/58305/60846.pdf |
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| Cepeda, Diego; Pardos, Fernando; Sánchez, Nuria. |
| A new species of Dracoderes, D. spyro sp. nov., is described from Hispaniola Island (Caribbean Sea), and represents the first record of this genus in American waters. The new species is distinguished from its congeners by the presence of lateroventral spines on segments 3–4 and 6–9, lateral accessory spines on segment 5, lateroventral tubes on segments 2, 5 and 10, and laterodorsal tubes on segment 8. Additionally, a dichotomous key to the species level for the genus Dracoderes is included. |
| Tipo: Text |
Palavras-chave: Kinorhynchs; Taxonomy; Morphology; Caribbean Sea; Dominican; Republic; Haiti. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00501/61244/64822.pdf |
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| Gurdebeke, Pieter R.; Mertens, Kenneth; Takano, Yoshihito; Yamaguchi, Aika; Bogus, Kara; Dunthorn, Micah; Matsuoka, Kazumi; Vrielinck, Henk; Louwye, Stephen. |
| Species in the genera Hexasterias and Halodinium have been recorded over the last decades as acritarchs in palynological and/or plankton studies. In paleoenvironmental studies, these resting stages are often interpreted as indicators of freshwater input. The biological affinity of these genera has never been definitely established. Here, a new species, Halodinium verrucatum sp. nov., is described and molecular evidence (single specimen SSU and LSU rDNA sequencing) reveals that both this new species and Hexasterias problematica, collected from sediment samples in the Skagerrak and Baltic Sea, are resting stages of prorodontid ciliates. Additionally, infrared spectroscopic analysis (micro-FTIR) of Hexasterias problematica and Halodinium spp. specimens... |
| Tipo: Text |
Palavras-chave: Acritarch; Ciliate cyst; FTIR; LSU-SSU rDNA; Prostomatida; Taxonomy. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00468/57970/64186.pdf |
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| Chomérat, Nicolas; Bilien, Gwenael; Zentz, Frédéric. |
| About 30 benthic Prorocentrum species have been described, some of which producing okadaic acid and derivatives involved in diarrhetic shellfish poisoning. The western Caribbean has been extensively studied for benthic dinoflagellates associated with ciguatera, and fifteen Prorocentrum species were described from mangroves and coral reefs of Belize. In contrast, no study reported the diversity of this genus in the Eastern Caribbean, especially in the Lesser Antilles. This study adds to the biodiversity knowledge in Martinique Island by investigating one site of the Caribbean coast from 2010 to 2017. Sediment samples were collected each year in March and studied taxonomically. Identification was realized morphologically by scanning electron microscopy,... |
| Tipo: Text |
Palavras-chave: Caribbean; Dinoflagellates; LSU rDNA; Phylogeny; Prorocentrum; Taxonomy. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00469/58075/60483.pdf |
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| Registros recuperados: 2.235 | |
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