The state of the art of Xyalidae (Nematoda, Monhysterida) with reference to the Brazilian records

Venekey, Virág; Gheller, Paula Foltran; Maria, Tatiana F.; Brustolin, Marco C.; Kandratavicius, Noelia; Vieira, Danilo Cândido; Brito, S M R C; Souza, Guilherme Silvério Aquino de; Fonseca, Gustavo

doi:10.1007/s12526-014-0226-3

Cited by 23 publications

(11 citation statements)

References 39 publications

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“…The Desmodoridae and Chromadoridae are typical components of medium-coarse sediments and CDZs ( e.g ., Raes et al, 2007 ; Armenteros et al, 2019 ; Neres, Dos Santos & Esteves, 2021 ). The Xyalidae, although often associated with fine-grained sediments, includes several species that are associated with coarser sediments ( Venekey et al, 2014 ).…”

Section: Discussionmentioning

confidence: 99%

Taxonomic and functional nematode diversity in Maldivian coral degradation zones: patterns across reef typologies and depths

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Cesaroni

et al. 2022

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The intensification of dredging and infilling activities in lagoons and on coral reefs are common practices in the Maldivian archipelago, and these activities alter the biodiversity of the bioconstructors and the functioning of the ecosystem. The alteration of environmental factors can also affect inconspicuous fauna, such as free-living nematodes. The implications of a reduction in biodiversity may transcend decreased taxonomic diversity, resulting in changes in functional diversity and redundancy; however, how the environmental conditions and human pressure affects the functionality of nematodes in Maldivian coral degradation zones (CDZs) remain poorly understood. In this paper, we examined changes in the taxonomic and functional diversity and the functional redundancy in nematode communities regarding the geographic location (atolls with various levels of human pressure), the exposure and topography of the reef (lagoon and ocean), the slope of the reef, and the depth. The functional diversity and redundancy were evaluated by considering two main biological traits of nematodes: i) the trophic strategy, and ii) the life strategy. The extremely high number of nematode genera observed in the Maldives is supported by the high complexity of the carbonate sediments. The reef exposure and depth were the most relevant environmental factors that influenced the taxonomic and functional diversity. The functional diversity, according to the trophic strategies, mirrored the taxonomic diversity because the adaptive plasticity of nematode buccal cavity structures is closely associated with the high biodiversity of the phylum. The high abundance of k-strategists in ocean reefs may indicate a higher ecological quality when compared to lagoon reefs; however, the absence of significant differences in life strategy functional diversity and functional redundancy indicates that a recovery process is underway. Analyses of nematode communities should be combined with standard investigations of reef bioconstructors during monitoring activities to assess the vulnerability of CDZ systems to future disturbances and facilitate the adoption of the most appropriate preventative actions.

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Section: Discussionmentioning

confidence: 99%

Taxonomic and functional nematode diversity in Maldivian coral degradation zones: patterns across reef typologies and depths

Grassi

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Cesaroni

et al. 2022

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“…1 Citation metrics retrieved from Google Scholar using the terms "meiofauna" or "meiobenthos" and further refining for country "Brazil": a) number of publications per year; b) number of citations per year 2014; Venekey et al 2014), Oligochaeta (Prantoni et al 2014), Polychaeta (Di , Platyhelminthes (CuriniGaletti 2014; Reygel et al 2014), and Mollusca (Jörger et al 2014). In total, 18 new species are described and 10 species are re-described (Table 1).…”

Section: Taxonomymentioning

confidence: 99%

Editorial: diversity of marine meiofauna on the coast of Brazil

2014

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After a first bout of primarily taxonomical effort, meiofauna studies in Brazilian waters remained virtually neglected until the 1990s. At the end of the last century, taxonomical and ecological studies on meiofauna taxa were again published regularly, especially for Nematoda and Copepoda. In this issue, 18 new species are described and ten species are redescribed from seven Phyla. The five ecological articles cover the spatial distribution of forams and amoeba in a lagunar system, the meiofauna associated with biogenic structures, the relationship between nematodes and granulometry, and the response of sandy-beach meiofauna to a natural, shortterm pulse of diatoms. All these contributions show the potential of the Brazilian coast for revealing new species and testing small to large-scale hypotheses about ecological processes.

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“…Chen and Vincx (2000) P. halerba Fadeeva and Belogurov, 1987 Paramonohystera (Leptogastrella) halerba Valid; spicules 2.5 a.b.d. (Fadeeva and Belogurov 1987;Venekey et al 2014) (Continued ) P. levicula (Lorenzen 1973)…”

Section: Descriptionmentioning

confidence: 99%

“…(Lorenzen 1972;Gerlach and Riemann 1973;Lorenzen 1974Lorenzen , 1977 P. longicaudata Timm, 1963 Paramonhystera longicaudata Timm, 1963 Likely a member of Daptonema; spicules only 1.5 a.b.d. Timm (1963) P. megacephala Steiner, 1916 Monhystera known from females and juvenile only (Wieser and Hopper 1967;Chen and Vincx 2000;Venekey et al 2014) P. mutila Lorenzen, 1973 Stylotheristus mutilus (Lorenzen 1973) Lorenzen,…”

Section: Descriptionmentioning

confidence: 99%

Two new nematodes,Pseudelzalia longisetagen. nov., sp. nov. andParamonohystera sinicasp. nov. (Monhysterida: Xyalidae), from sediment in the East China Sea

2014

Journal of Natural History

648

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Pseudelzalia longiseta gen. nov, sp. nov. and Paramonohystera sinica sp. nov. from subtidal sediment in the East China Sea are described. Pseudelzalia is characterized by 6 labial papillae and 10 cephalic setae, cylindrical buccal cavity, elongate (>2 anal body diameter) spicules, and conico-cylindrical tail devoid of terminal setae. It differs from Elzalia by the absence of terminal setae. Pseudelzalia longiseta sp. nov. is 647-853 μm long, has 7-8 μm long cervical setae, 11-14 μm long caudal setae, 25-41 μm long spicules about 2.1-2.7 anal diameter, and pointed tail-tip. Paramonohystera sinica possesses 12 cephalic setae, a character found in four congeners:

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The state of the art of Xyalidae (Nematoda, Monhysterida) with reference to the Brazilian records

Abstract: 2014The state of the art of Xyalidae (Nematoda, Monhysterida) with reference to the Brazilian records Marine Biodiversity, v. 44, p. 367-390, 2014

Cited by 23 publications

References 39 publications

Taxonomic and functional nematode diversity in Maldivian coral degradation zones: patterns across reef typologies and depths

Taxonomic and functional nematode diversity in Maldivian coral degradation zones: patterns across reef typologies and depths

Editorial: diversity of marine meiofauna on the coast of Brazil

Two new nematodes,Pseudelzalia longisetagen. nov., sp. nov. andParamonohystera sinicasp. nov. (Monhysterida: Xyalidae), from sediment in the East China Sea

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