Checklist of nematodes (Nematoda: Adenophorea) from southeast continental shelf of India

Ansari, Kapuli Gani Mohamed Thameemul; Manokaran, Seerangan; Raja, S.; Khan, S. Ajmal; Lyla, Somasundharanair

doi:10.15560/8.3.414

Cited by 11 publications

(3 citation statements)

References 15 publications

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“…Ansari & Parulekar ; Ansari et al . , ,b). Most of the studies that have been conducted on nematode fauna in this region have focused on the Western continental shelf of India (Harkantra et al .…”

Section: Introductionmentioning

confidence: 99%

Diversity patterns of free‐living marine nematodes in the southwest continental shelf off Bay of Bengal and their link to abiotic variables

et al. 2015

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Marine sediments in continental shelf ecosystems harbor a rich biodiversity of benthic communities. In this study, the spatial and temporal diversity and community assemblages of free-living marine nematodes were studied by sampling at six depths and over 3 years from the southwest continental shelf off Bay of Bengal, one of the least explored tropical shelf ecosystems. The dominant marine nematode species were related with abiotic variables as part of this study. The effects of sediment granulometry generally decreased with increasing depth and the highest nematode density and species diversity were recorded on coarse sand (shallower depths). Multivariate analysis of the nematode community data showed that community structure differed significantly among depths as well as among years. Statistical analyses showed significant correlations between the nematode community and abiotic variables. Sediment texture, organic matter, water pressure and depth profile were crucial factors for determining diversity, vertical profile and feeding types of the nematode community. Other environmental factors, including anthropogenic pressure, did not have an effect on nematode diversity except for the presence of some tolerant species (Metachromadora spp., Sabatieria spp. and Siplophorella sp.). This study represents a baseline of knowledge of free-living marine nematode communities that can be used in the future to compare nematode assemblages from temperate shelf ecosystems.

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Section: Introductionmentioning

confidence: 99%

Diversity patterns of free‐living marine nematodes in the southwest continental shelf off Bay of Bengal and their link to abiotic variables

et al. 2015

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“…North Sea, Celtic Sea, Eastern India, Adriatic Sea, Sea of Japan, Greater Antilles BW; CS Warwick, 1971b;Boyd et al, 2000;Ansari et al, 2012;Belogurova and Maslennikov, 2016;Pérez-García et al, 2020 The first ecoregion cited for each species is the local of the original description. a Example of works that registered the species in each one of the ecoregions cited.…”

Section: Paracanthonchus Longicaudatusmentioning

confidence: 99%

“…Most Paralongicyatholaimus species were described for the Continental Shelf of Temperate Northern Atlantic realm, except for P. complicatus from the Coastal Zone in Temperate South America. P. minutus and P. macramphis are the broader distributed, recorded in five (Warwick, 1971b;Boyd et al, 2000;Chinnadurai and Fernando, 2007;Sajan and Damodaran, 2007;Ansari et al, 2012;Lampadariou and Eleftheriou, 2018) and three ecoregions (Lorenzen, 1972;Long and Ross, 1999;Pérez-García et al, 2020), respectively.…”

Section: Remarksmentioning

confidence: 99%

Diversity and Distribution of Cyatholaimidae (Chromadorida: Nematoda): A Taxonomic and Systematic Review of the World Records

2022

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Nematoda is a very species-rich phylum that has successfully adapted to almost all types of ecosystems. Despite their abundance and ecological importance, the taxonomic knowledge of nematodes is still limited and the identification of species is not trivial. In Cyatholaimidae, a relatively common and abundant family of free-living nematodes, the identification of organisms is challenging due to the overlap of some generic diagnoses and the absence of updated systematic reviews. Here we systematically reviewed the knowledge about the family diversity, providing a list of valid species, the diagnostic characters to genus level, and the geographical and habitat distribution of species. The review systematized a total of 619 records. The occurrences were classified into biogeographic ecoregions and habitats. Cyatholaimidae includes 211 valid species, classified in 20 genera. The genera can be differentiated based on six diagnostics characters, namely: pattern of cuticle ornamentation; number of longitudinal rows of pore-complex in cuticle; structures of the buccal cavity; presence/absence of pharyngeal bulb; pre-cloacal supplements aspect; and the shape of gubernaculum. Cyatholaimidae includes mainly marine species, mostly occurring in the Coastal Zone. Four and three species were registered in freshwater and terrestrial habitats, respectively, all classified in the genus Paracyatholaimus. About 38% of the valid species occur in more than one type of habitat, under very different environmental conditions, suggesting a broad niche. The occurrence of congeneric species in different habitats types indicates that, throughout the evolutionary history of the family, multiple ecological shift events have occurred. The family occurs worldwide in 74 ecoregions, and the majority of the records and species are in the North Sea and Western Mediterranean. Most species are endemic to one ecoregion, and examples of broadly distributed ones may be a result of misidentifications or cases of long-distance dispersal, especially for those associated with biological substrates.

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Biodiversity of Benthic Fauna in Chilika Lagoon

Bhadury

Ansari

Sen

et al. 2020

Ecology, Conservation, and Restoration of Chilika Lagoon, India

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Checklist of nematodes (Nematoda: Adenophorea) from southeast continental shelf of India

Cited by 11 publications

References 15 publications

Diversity patterns of free‐living marine nematodes in the southwest continental shelf off Bay of Bengal and their link to abiotic variables

Diversity patterns of free‐living marine nematodes in the southwest continental shelf off Bay of Bengal and their link to abiotic variables

Diversity and Distribution of Cyatholaimidae (Chromadorida: Nematoda): A Taxonomic and Systematic Review of the World Records

Biodiversity of Benthic Fauna in Chilika Lagoon

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