Response of estuarine meiofauna assemblage to effects of fertilizer enrichment used in the sugar cane monoculture. Pernambuco, Brazil

Santos, Paulo Jorge Parreira dos; Botter-Carvalho, M.L.; Nascimento-Junior, Ananias B. do; Marinho, Raquel G. C; Carvalho, Paulo V.V.C.; Valença, Ana Paula Maria Cavalcanti

doi:10.1590/s1679-87592009000100005

Cited by 22 publications

(7 citation statements)

References 37 publications

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“…In the Itamaraca mangrove area of Brazil (Gomes et al 2002;Santos et al 2009), kinorhynchs ranked third in dominance after nematodes and copepods. Unfortunately, kinorhynchs found in these studies were not identified beyond the group level, except for Echinoderes bengalensis collected at Kakinada Bay (east coast of India) (Annapurna et al 2015).…”

Section: Mangrove Meiofaunamentioning

confidence: 99%

Characteristics of meiofauna in extreme marine ecosystems: a review

et al. 2017

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Extreme marine environments cover more than 50% of the Earth's surface and offer many opportunities for investigating the biological responses and adaptations of organisms to stressful life conditions. Extreme marine environments are sometimes associated with ephemeral and unstable ecosystems, but can host abundant, often endemic and welladapted meiofaunal species. In this review, we present an integrated view of the biodiversity, ecology and physiological responses of marine meiofauna inhabiting several extreme marine environments (mangroves, submarine caves, Polar ecosystems, hypersaline areas, hypoxic/anoxic environments, hydrothermal vents, cold seeps, carcasses/sunken woods, deep-sea canyons, deep hypersaline anoxic basins [DHABs] and hadal zones). Foraminiferans, nematodes and copepods are abundant in almost all of these habitats and are dominant in deep-sea ecosystems. The presence and dominance of some other taxa that are normally less common may be typical of certain extreme conditions. Kinorhynchs are particularly well adapted to cold seeps and other environments that experience drastic changes in salinity, rotifers are well represented in polar ecosystems and loriciferans seem to be the only metazoan able to survive multiple stressors in DHABs. As well as natural processes, human activities may generate stressful conditions, including deoxygenation, acidification and rises in temperature. The behaviour and physiology of different meiofaunal taxa, such as some foraminiferans, nematode and copepod species, can provide vital information on how organisms may respond to these challenges and can provide a warning signal of anthropogenic impacts. From an evolutionary perspective, the discovery of new meiofauna taxa from extreme environments very often sheds light on phylogenetic relationships, while understanding how meiofaunal organisms are able to survive or even flourish in these conditions can explain evolutionary pathways. Finally, there are multiple potential economic benefits to be gained from ecological, biological, physiological and evolutionary studies of meiofauna in extreme environments. Despite all the advantages offered by meiofauna studies from extreme environments, there is still an urgent need to foster meiofauna research in terms of composition, ecology, biology and physiology focusing on extreme environments.

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Section: Mangrove Meiofaunamentioning

confidence: 99%

Characteristics of meiofauna in extreme marine ecosystems: a review

et al. 2017

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“…Kinorhyncha represents 1-8% of the total meiofauna at a given locality, occasionally only 0.1% or exceptional 15-33% (de Bovée & Soyer 1974;Parulekar & Ansari 1981;Rao & Satapathy 1996;Dalto & Albuquerque 2000;Mazzola et al 2000;Cibic et al 2009;Santos et al 2009;Grzelak & Kotwicki 2012). Usually, Kinorhyncha does not belong to the most dominant taxa, but in a few cases it ranks third in dominance after Nematoda and Copepoda (de Bovée & Soyer 1974;Jensen 1983;Herman & Dahms 1992;Santos et al 2009).…”

Section: Ecologymentioning

confidence: 99%

5. Kinorhyncha (= Echinodera)

Neuhaus¹

2012

Nematomorpha, Priapulida, Kinorhyncha, Loricifera

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“…Meiofauna have frequently been used to study the change in aquatic species diversity along a salinity gradient from freshwater to marine (Remane & Schlieper 1971, Giberto et al 2007, Whitfield et al 2012. They have also been used in disturbance studies to characterise the impact of various pollutants along a gradient within rivers and estuaries, as well as through time (Moreno et al 2008, Amiard-Triquet & Rainbow 2009, Santos et al 2009. Meiofauna and MPB are also important components of estuarine food webs, providing a major food source for higher trophic groups, and linking benthic and pelagic food webs (Wassenberg & Hill 1993, Nozais et al 2005, Kromkamp et al 2006.…”

Section: Introductionmentioning

confidence: 99%

Effects of freshwater flow extremes on intertidal biota of a wet-dry tropical estuary

Duggan¹,

Connolly²,

Whittle³

et al. 2014

Mar. Ecol. Prog. Ser.

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Freshwater flow into estuaries during periods of high rainfall is considered to enhance the biomass of primary producers, with positive effects propagating to higher trophic groups. We examined the effect of flow on chlorophyll a (chl a) concentrations and meiofaunal abundance on the intertidal mudflats in a wet-dry tropical estuary in the Norman River, northern Australia. Meiofaunal density and sediment chl a concentrations (microphytobenthos) were signifi cantly reduced during 2 consecutive wet season floods (the first, a major flood; the second, minor). Additionally, a short-term study of primary productivity on the mudflats during the minor flood measured rates below detection limits. The effects of salinity and burial by sediment on chl a concentrations and meiofaunal abundance were examined experimentally. Both the sudden and prolonged changes in salinity and sediment movement, and subsequent sedimentation as a result of wet season floods were the likely causes of the reduced meiofaunal density, chl a concentrations and benthic primary production. In the short term, large floods in the wet-dry tropics appear to act more as a disturbance event than a subsidy for benthic estuarine biota, and any positive effects of the flood may not occur until flooding eases. Additionally, we propose that there is a transitional period between the typical wet and dry seasons in the wet-dry tropics, during which flood waters are dissipating and the initial impact of the flood has abated, and there are positive effects on meiofauna and microphytobenthos biomass.

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Response of estuarine meiofauna assemblage to effects of fertilizer enrichment used in the sugar cane monoculture. Pernambuco, Brazil

Cited by 22 publications

References 37 publications

Characteristics of meiofauna in extreme marine ecosystems: a review

Characteristics of meiofauna in extreme marine ecosystems: a review

5. Kinorhyncha (= Echinodera)

Effects of freshwater flow extremes on intertidal biota of a wet-dry tropical estuary

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