Meiofauna of mangroves of the southeast coast of India with special reference to the free-living marine nematode assemblage

Chinnadurai, G; Fernando, Olivia J.

doi:10.1016/j.ecss.2006.11.004

Cited by 41 publications

(25 citation statements)

References 18 publications

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“…Shrimp farm wastes contain highly diversified phytoplankton cells up to 20 millions cel ml À1 (Della Patrona and Brun, 2009) that constitute a very important food source for epistrate feeders, that are known to directly assimilate it (Olafsson and Elmgren, 1997). We thus suggest that these phytoplankton-rich effluents directly and specifically enhance epistrate-feeder populations that are the dominant trophic nematofauna group in the A. marina stand (Chinnadurai and Fernando, 2007). Under the influence of anoxic conditions, the general pattern consists of an increase in "less sensitive" nematodes in conjunction with a decrease in "very sensitive" copepods (Vezzulli et al, 2003;Moreno et al, 2008).…”

Section: Evolution Of Meiofauna Distribution In the Whole Mangrove Bementioning

confidence: 84%

“…With regard to the Avicennia stand, which is situated between the salt flat and the Rhizophora stand, its sediments have high biomass and the highest abundance of meiofauna. In addition to sediment grain size and food availability, Avicennia pneumatophores probably act as a more effective barrier than the Rhizophora stilts for meiofauna (Chinnadurai and Fernando (2007). Furthermore, Avicennia's specific root system, by diffusing oxygen into the sediment (Marchand et al, 2004), may create more favorable conditions for meiofauna development.…”

Section: 2mentioning

confidence: 99%

“…Environmental cues such as temperature, salinity, length of tidal immersion, redox conditions and sediment grain size are the most important factors regulating the zonation patterns of meiofauna in mangrove estuaries (Alongi, 1987a,b;Ansari et al, 1993;Thilagavathi et al, 2011). These parameters can vary according to the mangrove stand (Vanhove et al, 1992;Marchand et al, 2004;Chinnadurai and Fernando, 2007) and its position in the tidal zone that induces difference in waterlogging, leading notably to different pore water salinity (Marchand et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Meiofauna distribution in a mangrove forest exposed to shrimp farm effluents (New Caledonia)

Patrona

Marchand

Hubas

et al. 2016

Marine Environmental Research

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Meiofauna abundance, biomass and individual size were studied in mangrove sediments subjected to shrimp farm effluents in New Caledonia. Two strategies were developed: i) meiofauna examination during the active (AP) and the non-active (NAP) periods of the farm in five mangrove stands characteristics of the mangrove zonation along this coastline, ii) meiofauna examination every two months during one year in the stand the closest to the pond (i.e. Avicennia marina). Thirteen taxonomic groups of meiofauna were identified, with nematodes and copepods being the most abundant ones. Meiofauna abundance and biomass increased from the land side to the sea side of the mangrove probably as a result of the increased length of tidal immersion. Abundance of total meiofauna was not significantly different before and after the rearing period. However, the effluent-receiving mangrove presented twice the meiofauna abundance and biomass than the control one. Among rare taxa, mites appeared extremely sensitive to this perturbation.

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Section: Evolution Of Meiofauna Distribution In the Whole Mangrove Bementioning

confidence: 84%

Section: 2mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Meiofauna distribution in a mangrove forest exposed to shrimp farm effluents (New Caledonia)

Patrona

Marchand

Hubas

et al. 2016

Marine Environmental Research

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“…Currently 35 species of nematode-trapping fungi have been recorded from aquatic environments (Ingold 1944;Peach 1950Peach , 1952Peach , 1954Johnson and Autery 1961;Anastasiou 1964;Hao et al 2004), however, Arthrobotrys dactyloides is the only a species that has been isolated from brackish water (Johnson and Autery 1961). Nematodes are populous in marine and mangrove habitats (Tietjen and Alongi 1990;Somerfield et al 2002;Zhang and Zhou 2003;Chinnadurai and Fernando 2007). We might therefore expect nematode-trapping fungi to be ubiquitous in saline habitats.…”

Section: Introductionmentioning

confidence: 99%

Diversity and abundance of nematode-trapping fungi from decaying litter in terrestrial, freshwater and mangrove habitats

et al. 2008

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Nematode-trapping fungi are ubiquitous in terrestrial habitats in dung, soils, litter and woody debris and they also occur in freshwater, but only one species has been found in marine habitats. The purpose of this study was therefore to investigate whether nematode-trapping fungi occurred in mangrove habitats. To achieve this we assessed the diversity of nematode-trapping fungi on decaying litter from mangroves, freshwater and terrestrial habitats (22 sites) in Hong Kong. Composite samples (n = 1,320) of decaying litter (wood and leaves) were examined and a total of 31 species of nematode-trapping fungi belonging to four genera, Arthrobotrys, Monacrosporium, and Dactylella were recorded. Twenty-nine species reported in this study are new records for Hong Kong and 16 species are new records from mangrove habitats worldwide. Nematode trapping fungi are therefore present in marine environments. Commonly encountered taxa were Arthrobotrys oligospora and Monacrosporium thaumasium which are abundant in all habitats. A. oligospora, M. thaumasium and Arthrobotrys musiformis were frequent (F [ 10%). Twenty-six species were rare (0.16-9.32%). Species richness and diversity was higher in terrestrial than in freshwater and mangrove habitats (ANOVA, P \ 0.001). A higher mean diversity was observed on decaying leaves as compared to decaying wood in all habitats (P \ 0.001). Based on Shannon diversity index, it was also observed that taxa characterized by adhesive nets were more frequent in all habitats. This can be explained by the fact that these taxa may have a better competitive saprotrophic ability which would allow them to compete favourably in nutrient limited environments. Abiotic factors that could be linked to differences in species diversity between decaying wood and leaves are also discussed.

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“…Studies on the distribution and biodiversity of meiofauna in mangrove sediments have been conducted in southern African (Dye, 1983), southeast coast of India (Ansar et al, 2014), southeastern Australia (Gwyther, 2000), west coast of Zanbibar (Olafsson et al, 2000), southeast coast of India (Chinnadurai and Fernando, 2007), Vietnam (Xuan et al, 2007), southwestern of Puerto Rico (Torres-Pratts and Schizas, 2007), even in different tropical habitats and oceanic regions such as the Caribbean, Celebes and Red Seas where there are seagrass, mangrove and reef sediments (Pusceddu et al, 2014). Some information on meiofauna in mangrove habitat has also been reported in China.…”

Section: Introductionmentioning

confidence: 99%

Comparison of meiofaunal abundance in two mangrove wetlands in Tong’an Bay, Xiamen, China

Zhou

Cai

2015

J. Ocean Univ. China

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To compare meiofaunal community in the two mangrove wetlands in Tong'an Bay, Xiamen, China, and probe the response of meiofauna to high organic matter, sampling was carried out in Fenglin and Xiang'an mangrove wetlands in the bay. The results showed that the Ne/Co ratio (nematode to benthic copepod) and organic matter in Fenglin mangrove wetland were higher than those in Xiang'an mangrove wetland. The meiofaunal abundance in Fenglin mangrove was all lower than that in Xiang'an mangrove wetland in summer, autumn and spring, while the meiofaunal abundance in Fenglin mangrove was higher than that in Xiang'an mangrove wetland in winter. Two-way ANOVA results showed that the meiofaunal abundance and nematode abundance were significantly different between regions, seasons and region×season. With all the results in the present study, we confirmed that the positive response of meiofaunal and nematode abundance were only detected for medium organic matter contents according to the Xiang'an wetland's level, and that the distribution of meiofaunal abundance would be influenced by sand content. Higher copepod abundance and lower N/C value usually suggest better environmental quality.

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Meiofauna of mangroves of the southeast coast of India with special reference to the free-living marine nematode assemblage

Cited by 41 publications

References 18 publications

Meiofauna distribution in a mangrove forest exposed to shrimp farm effluents (New Caledonia)

Meiofauna distribution in a mangrove forest exposed to shrimp farm effluents (New Caledonia)

Diversity and abundance of nematode-trapping fungi from decaying litter in terrestrial, freshwater and mangrove habitats

Comparison of meiofaunal abundance in two mangrove wetlands in Tong’an Bay, Xiamen, China

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