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Artykuły w czasopismach na temat „Meiofauna”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Parent, Serge, and Antoine Morin. "Role of copepod-dominated meiofauna in the nitrification process of a cold marine mesocosm." Canadian Journal of Fisheries and Aquatic Sciences 56, no. 9 (1999): 1639–48. http://dx.doi.org/10.1139/f99-096.

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Large populations of copepod-dominated meiofauna are found in the sand filters of the St. Lawrence marine mesocosm at the Montreal Biodome. Experiments were conducted in heterotrophic microcosms to quantify how populations of micro- and meiofaunal organisms affect ammonia oxidation (nitrition) and nitrite oxidation (nitration) using apparent nitrition rate (ANiR) and apparent nitration rate (ANaR) as proxies. ANiR and ANaR were not related to ciliate density. Meiofauna had no effect on ANiR, but a significant relationship between ANaR and meiofaunal biomass was observed, which varied with the

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Santiago-Vera, Josue, and Alonso Ramírez. "MEIOFAUNA IN TROPICAL MONTANE STREAMS: BIOTIC AND ABIOTIC FACTORS REGULATING COMMUNITIES." Acta Biológica Colombiana 28, no. 2 (2023): 229–38. http://dx.doi.org/10.15446/abc.v28n2.103379.

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Meiofauna is a group of heterotrophic organisms smaller than macroinvertebrates but larger than microfauna and characterized by groups such as testate amoebae, ciliates, and nematodes. They are a link between bacteria and resources and macroinvertebrates. However, tropical meiofauna is poorly studied; thus, our goal was to characterize meiofaunal community composition and abundance and assess potential environmental variables controlling these community dynamics. Monthly samplings of meiofauna were conducted for eight months in Quebrada Prieta, El Yunque National Forest, Puerto Rico. Sampling

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Dražina, Tvrtko, Maria Špoljar, Biserka Primc, and Ivan Habdija. "Distribution of rotifers and other meiofauna in the bryophytes and hyporheic zone of a karst hydrosystem – an example of a nested community." Marine and Freshwater Research 68, no. 1 (2017): 43. http://dx.doi.org/10.1071/mf14291.

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The meiofauna assemblages inhabiting the bryophyte-covered tufa barriers were investigated in the barrage system of Plitvice Lakes (Croatia). The main aims of the present study were: (1) to analyse the structure of the rotifer community and other meiofaunal communities in the bryophytes and the hyporheic tufa zone; and (2) to determine the influence of food sources on the meiofauna. Our results indicate that meiofauna were a constant and abundant component in bryophytes and tufa. Of the nine identified groups (Catenulida, Gastrotricha, Nematoda, Rotifera, Hydrachnidia, Oligochaeta, Copepoda, T

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Parent, Serge, and Antoine Morin. "The role of copepod-dominated meiofauna in the mineralization of organic matter in a cold marine mesocosm." Canadian Journal of Fisheries and Aquatic Sciences 56, no. 10 (1999): 1938–48. http://dx.doi.org/10.1139/f99-160.

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Large populations of meiofauna are found in the sand filters of the St. Lawrence mesocosm at the Montreal Biodome. Three 30-day experiments were conducted in heterotrophic microcosms to quantify how populations of micro- and meio-faunal organisms affect mineralization using the apparent mineralization rate (AMR), i.e., nitrate production, as a proxy. Tryptone, mesocosm detritus, and fishmeal were used as organic substrates (C:N ratios 4-8). Harpacticoid copepods dominated the meiofauna in numbers (87%) and biomass (90%). AMR was inversely related to meiofaunal mass and not related to ciliate d

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Alfurjani, Hajir O. A., Sayed M. Ali, Hamad M. A. Hasan, and Ramadan A. S. Ali. "Some Traits of Meiofauna in the Surf Region of the Southern Mediterranean Sea Coast." International Journal of Environment and Pollution Research 10, no. 3 (2022): 12–28. http://dx.doi.org/10.37745/ijepr.13/vol10n31228.

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During the winter and summer of 2019, eight study sites in eastern Libya were used to establish meiofauna diversity in the Southern Mediterranean Sea's near-shore sandy bottom surf region. The physicochemical characteristics of surface water at the study sites were mostly similar. Seventeen taxa of floatable meiofauna (extracted from sediment samples by floatation) were identified, sixteen during winter and ten during summer: By number of individuals per taxon, Nematoda and Foraminifera were the most abundant taxa. The other available taxa were Rhabdocoela, Xanacoelomorpha, Gastrotrichs, Polyc

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6

Long, Shabdin Mohd. "Marine and Estuarine Meiofauna of Sarawak, Malaysia - A Review." Sarawak Museum Journal LXII, no. 83 (2006): 201–22. https://doi.org/10.61507/smj22-2006-54sx-13.

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Studies of the marine and estuarine meiofauna in Sarawak from 1999 till 2005 were focused on taxonomic composition, abundance, species zonation, species density, species diversity and evenness. In terms of species composition, only nematode and harpacticoid copepodstaxa have so far been studied to genera and species level. However most of the study is still limited to western part of Sarawak only. Many of the other meiofaunal taxa are still not elucidated to their genus and species levels yet. Future meiofauna research in Sarawak should focus on the aspects of seasonality, role of meiofauna in

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Esteves, André M., Verônica S. Oliveira, Paulo J. P. dos Santos, Tatiana F. Maria, and Adriane P. Wandeness. "Meiofauna from Almirante Câmara Canyon and Its Adjacent Open Slope, Southwest Atlantic Ocean." Coasts 5, no. 2 (2025): 14. https://doi.org/10.3390/coasts5020014.

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The patterns of meiofaunal distribution in a submarine canyon and adjacent open-slope habitats at Campos Basin, southwest Atlantic, were investigated. A total of eight stations was sampled, four inside the Canyon Almirante Câmara and four on the adjacent open slope. These stations represented four isobaths (400, 700, 1000, 1300 m) and were sampled during two distinct periods (2008, 2009). At each station, three replicates were obtained and sectioned into layers of 0–2, 2–5 and 5–10 cm. Nematoda was the most abundant group in both habitats, comprising more than 85% of the total meiofauna in bot

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Gaudes, Ainhoa, Joan Artigas, and Isabel Muñoz. "Species traits and resilience of meiofauna to floods and drought in a Mediterranean stream." Marine and Freshwater Research 61, no. 11 (2010): 1336. http://dx.doi.org/10.1071/mf10044.

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In Mediterranean streams, droughts and floods are mainly seasonal and predictable, occurring twice or three times a year. Under these conditions, multivoltinism and short life-cycles would be favoured, particularly for organisms with low migratory capacity. The meiofaunal community is therefore hypothesised to have species traits adapted to these hydrological perturbations. However, meiofauna have been neglected in many lotic studies. The present study examined the temporal variability of meiofaunal density and biomass over a 2-year period in three reaches of a low-order Mediterranean stream.

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Kang, Teawook, Won-Gi Min, Hyun Soo Rho, Heung-Sik Park, and Dongsung Kim. "Differential responses of a benthic meiofaunal community to an artificial oil spill in the intertidal zone." Journal of the Marine Biological Association of the United Kingdom 94, no. 2 (2013): 219–31. http://dx.doi.org/10.1017/s0025315413001501.

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This study aimed to determine the potential impact of an oil spill on intertidal meiofauna at a clean, sandy beach in Korea. This objective was accomplished by examining changes in the structure of meiofaunal assemblages after a controlled oil spill of different concentrations on the beach. The concentration of total petroleum hydrocabon (TPH) in the experimental plots after oil application was expectedly higher for the first 4 d compared to before oil application. The TPH concentrations decreased at a faster rate in the first 4 d, and then progressively. The sharp decline in meiofaunal densit

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Danovaro, Roberto, Antonio Pusceddu, Simone Mirto, and Mauro Fabiano. "Meiofaunal assemblages associated with scallop beds (Adamussium colbecki) in the coastal sediments of Terra Nova Bay (Ross Sea, Antarctica)." Antarctic Science 11, no. 4 (1999): 415–18. http://dx.doi.org/10.1017/s0954102099000528.

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Meiofaunal community structure in coastal sediments of Terra Nova Bay (Ross Sea) was related to quantity and biochemical composition of sedimentary organic matter. The sediments were generally characterized by large amounts of chloropigments and labile compounds (dominated by proteins), indicating high inputs of primary organic matter. Meiofaunal densities were very high and comparable to those from the most productive areas worldwide. Sediments with high densities of the scallop had low meiofaunal densities especially in the top 2 cm, suggesting that scallop clapping contributed to meiofauna

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Waweru, Beth Wangui, Charity Wangui Wanjohi, Agnes Wangui N. Muthumbi, Eric Ochieng Okuku, and Nathan Ndegwa Gichuki. "Meiofauna as bioindicators of organic and inorganic pollution of estuarine sediments in Kenya." Western Indian Ocean Journal of Marine Science 23, no. 1 (2024): 69–80. http://dx.doi.org/10.4314/wiojms.v23i1.7.

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Meiofaunal density, diversity, and community assemblages were studied at the highly con- taminated Tudor Creek and the less contaminated Mida Creek in Kenya to assess their poten- tial as bioindicators of marine pollution. Sampling during the dry (January/February 2017) and wet (November/December 2017) seasons indicated a significantly greater total organic matter content at Mida (23.7 and 23.9 %) than at Tudor Creek (6.6 and 5.9 %) in the dry and wet seasons. Heavy metal concentrations were always greater at Tudor Creek. Meiofaunal densi- ties were greater at Mida (2729 and 2804 ind.10 cm-2)

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12

Punniyamoorthy, Rengasamy, Perumal Murugesan, Gopalan Mahadevan, and Alberto Sanchez. "Benthic Meiofaunal Diversity in Four Zones of Pichavaram Mangrove Forest, India." Journal of Foraminiferal Research 51, no. 4 (2021): 294–307. http://dx.doi.org/10.2113/gsjfr.51.4.294.

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ABSTRACT The community structure of meiofauna was assessed relative to environmental parameters in four zones (non-mangrove, Avicennia zone, mixed zone, and Rhizophora zone) of Pichavaram Mangrove Forest, which is located along the southeast coast of India. Field sampling was carried out from June 2016–May 2017. The meiofaunal data were evaluated using univariate and multivariate statistics. The highest abundance of meiofauna (434 ind/10 cm−2) was recorded in the Rhizophora zone and the lowest (270 ind/10 cm−2) in the non-mangrove zone. A total of 62 species representing four meiofaunal groups

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Carugati, Laura, Cinzia Corinaldesi, Antonio Dell'Anno, and Roberto Danovaro. "Metagenetic tools for the census of marine meiofaunal biodiversity: An overview." Marine Genomics 24 (May 7, 2015): 11–20. https://doi.org/10.1016/j.margen.2015.04.010.

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<strong>Abstract</strong> Marine organisms belonging to meiofauna (size range: 20–500 μm) are amongst the most abundant and highly diversified metazoans on Earth including 22 over 35 known animal Phyla and accounting formore than 2/3 of the abundance ofmetazoan organisms. In anymarine system,meiofauna play a key role in the functioning of the food webs and sustain important ecological processes. Estimates of meiofaunal biodiversity have been so far almost exclusively based on morphological analyses, but the very small size of these organisms and, in some cases, the insufficient morphological d

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Lagos, Ana Milena, M. Victoria Leon, Angie Colorado, et al. "Effects of microplastics pollution on the abundance and composition of interstitial meiofauna." Revista de Biología Tropical 71, no. 1 (2023): e50031. http://dx.doi.org/10.15517/rev.biol.trop..v71i1.50031.

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Introduction: Pollution by microplastics is a global problem in marine environments, and impacts microorganisms and ecosystems at several spatial levels. Sandy beaches are depositional environments where microplastics tend to accumulate in large quantities. The co-occurrence of interstitial meiofauna and microplastics in sand grains raises the question on whether the accumulation of microplastics in the sediments affects the abundance and composition of the meiofaunal communities. Objective: To test the hypothesis that microplastics affect the meiofauna of urban sandy beaches. Methods: We stud

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Harguinteguy, Carlos A., M. Noelia Cofré, and Catalina T. Pastor de Ward. "Change in the meiofauna community structure of sandy beaches of the Nuevo Gulf (Chubut, Argentina)." Papéis Avulsos de Zoologia 52, no. 34 (2012): 411–22. http://dx.doi.org/10.1590/s0031-10492012021400001.

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The composition and distribution of the benthic meiofauna assemblages of the Nuevo Gulf (Chubut, Argentina) are described in relation to abiotic variables. The meiofauna and sediment samples were collected in the intertidal zone of four sandy beaches with different anthropic disturbances in June 2005. The samples were obtained at 20 sampling sites using a 2.5 cm diameter core tube at a depth of 10 cm. A total of 13 meiofauna taxa were identified, with the meiofauna being primarily represented by nematodes, gastrotrichs, ciliates and polychaetes and the meiofauna abundances ranging from 1.5 × 1

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Thai, Tran Thanh, Nguyen Thi My Yen, Nguyen Tho, and Ngo Xuan Quang. "MEIOFAUNA IN THE MANGROVE – SHRIMP FARMS PONDS, CA MAU PROVINCE." Vietnam Journal of Science and Technology 55, no. 3 (2017): 271. http://dx.doi.org/10.15625/2525-2518/55/3/8410.

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Meiofaunal communities in the mangrove – shrimp farms system (MSFS) of Ca Mau province was investigated in 8 ponds (Tam Giang Commune, Nam Can District). Results showed that the meiofauna, especially nematodes at the Tam Giang’s MSFS in Ca Mau mangrove express high densities and biodiversity and nematodes dominate numerically in the mangrove meiofauna (73.69 to 96.2 %). In total, 15 major taxa were found with the dominant taxa belonged to three dominant groups: Nematodes, Copepoda, and Rotifera. The densities of meiofauna ranged from 287 ± 132.9 to 3129 ± 1388.6 inds.10 cm-2. Seventy fifth nem

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Rosa, Leonardo Cruz, and Carlos Emilio Bemvenuti. "Effects of the burrowing crab Chasmagnathus granulata (Dana) on meiofauna of estuarine intertidal habitats of Patos Lagoon, Southern Brazil." Brazilian Archives of Biology and Technology 48, no. 2 (2005): 267–74. http://dx.doi.org/10.1590/s1516-89132005000200014.

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This study aimed to evaluate the effects of the burrowing crab Chasmagnathus granulata on meiofauna at three intertidal habitats across a tidal exposure gradient (i.e., an emerged salt marsh, an emerged mudflat and a submerged mudflat) in an estuarine embayment of Patos Lagoon, Southern Brazil. Meiofauna community was dominated by nematodes and ostracods, following by copepods and turbellarians. Densities of all studied organisms varied significantly among habitats. Highest values were observed in submerged mudflat while lower in salt marsh. Nematodes were unaffected by crab in either habitat,

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Losi, Valentina, Monica Montefalcone, Mariapaola Moreno, et al. "Nematodes as indicators of environmental quality in seagrass (Posidonia oceanica) meadows of the NW Mediterranean Sea." Advances in Oceanography and Limnology 3, no. 1 (2012): 69. http://dx.doi.org/10.4081/aiol.2012.5327.

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Meiofauna in sediments colonized by Posidonia oceanica in the Ligurian Sea (NW Mediterranean) was investigated to evaluate its use as an early warning indicator of environmental disturbance. Descriptors commonly used in seagrass health assessment are mainly related to the plant (e.g., phenological parameters) and/or to the meadow (e.g., structural parameters) and are subjected to long-term response times. Conversely, meiofauna is considered a good bioindicator with a rapid response to environmental variations, due to its main features (e.g., short life cycle, scarce mobility, presence/absence

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Moreno, Mariapaola, Luigi Vezzulli, Valentina Marin, Paola Laconi, Giancarlo Albertelli, and Mauro Fabiano. "The use of meiofauna diversity as an indicator of pollution in harbours." ICES Journal of Marine Science 65, no. 8 (2008): 1428–35. http://dx.doi.org/10.1093/icesjms/fsn116.

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Abstract Moreno, M., Vezzulli, L., Marin, V., Laconi, P., Albertelli, G., and Fabiano, M. 2008. The use of meiofauna diversity as an indicator of pollution in harbours. – ICES Journal of Marine Science, 65: 1428–1435. We assessed several meiofaunal indices in sediments of three Mediterranean harbours differing in environmental contamination to evaluate their usefulness as indicators of pollution and to identify those that best described environmental quality. In general, indicators based on meiofaunal taxa demonstrated a significant correlation with the concentration of contaminants, especiall

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Soto, Eulogio, Williams Caballero, and Eduardo Quiroga. "Composition and vertical distribution of metazoan meiofauna assemblages on the continental shelf off central Chile." Latin American Journal of Aquatic Research 43, no. 5 (2017): 922–35. http://dx.doi.org/10.3856/vol43-issue5-fulltext-12.

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A quantitative study of metazoan meiofauna was carried out in Valparaiso Bay (33°S 71°W) which is affected by seasonal hypoxia in central Chile. The contents of bottom water, dissolved oxygen (BWDO), organic carbon, chloroplast pigments and composition of stable carbon isotope (d13C) in the sediment were used as a measure of the contribution of primary production in the water column, which accumulates in the sediment. Meiofauna abundances in the three sampling stations (80-140 m depth) ranged from 2.218 ± 643 to 1.592 ± 148 ind 10 cm-2. Nine upper metazoan meiofauna groups were recorded, with

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Bianchelli, Silvia, Daniele Nizzoli, Marco Bartoli, Pierluigi Viaroli, Eugenio Rastelli, and Antonio Pusceddu. "Sedimentary Organic Matter, Prokaryotes, and Meiofauna across a River-Lagoon-Sea Gradient." Diversity 12, no. 5 (2020): 189. http://dx.doi.org/10.3390/d12050189.

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In benthic ecosystems, organic matter (OM), prokaryotes, and meiofauna represent a functional bottleneck in the energy transfer towards higher trophic levels and all respond to a variety of natural and anthropogenic disturbances. The relationships between OM and the different components of benthic communities are influenced by multiple environmental variables, which can vary across different habitats. However, analyses of these relationships have mostly been conducted by considering the different habitats separately, even though freshwater, transitional, and marine ecosystems, physically linke

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Rebecchi, Federica, Daniela Zeppilli, Elisa Baldrighi, et al. "First insights into the meiofauna community of a maerl bed in the Bay of Brest (Brittany)." Scientia Marina 86, no. 1 (2022): e024. http://dx.doi.org/10.3989/scimar.05230.024.

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Maerl beds, particularly those of Brittany, are important, structurally complex biogenic coastal habitats that form a unique ecosystem with high benthic biodiversity. Although they are relatively well studied throughout Europe, several faunal groups of maerl beds, such as those belonging to the meiofauna, have received little attention. We investigated the meiofaunal abundance, distribution and community structure, with a focus on nematode biomass and diversity, in a maerl area in the Bay of Brest, Brittany, compared with that on a sandy beach (Anse de Dinan, Brittany). Meiofauna was five time

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Todaro, M. Antonio, Serena Anselmi, Tecla Bentivoglio, Carlo Pretti, Andrea Cavallo, and Monia Renzi. "Looking for Nano- and Microplastics in Meiofauna Using Advanced Methodologies." Environments 10, no. 5 (2023): 81. http://dx.doi.org/10.3390/environments10050081.

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Meiofauna (body size within 30–1000 µm) are the community of microscopic invertebrates that live at the bottom of marine and freshwater ecosystems and play a key role in the food webs of these environments. Several studies have addressed the adverse effects of anthropic stressors on meiofauna; however, data on the presence and impact of plastic debris in wild meiofaunal organisms are scant. Since the amount of microplastic waste in sediments may surge rapidly, ascertaining the ingestion of these xenobiotics by the abundant micrometazoan community is necessary to understand their potential accu

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Moore, C. G. "Meiofauna of the industrialised estuary and Firth of Forth, Scotland." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 93, no. 3-4 (1987): 415–30. http://dx.doi.org/10.1017/s0269727000006850.

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SynopsisKnowledge concerning the meiofauna of the Forth is reviewed and extended by presentation of the results of new surveys of the intertidal and subtidal provinces of the estuary. Most of the published information concerns the influence of sewage pollution on shores of the firth. Before 1979, the meiofaunal communities of sandy beaches along the Edinburgh coastline exhibited reduced species richness, although certain taxa displayed enhanced densities. Improvements in the sewage treatment process have initiated a phase of meiofaunal recovery.In the estuary the salinity regime plays a key ro

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Semprucci, Federica, and Roberto Sandulli. "Editorial for Special Issue “Meiofauna Biodiversity and Ecology”." Diversity 12, no. 6 (2020): 249. http://dx.doi.org/10.3390/d12060249.

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Meiofauna are a component of aquatic environments from polar to tropical regions. They may colonize all types of habitats and include very enigmatic and exclusive taxa. The biodiversity of this component in marine ecosystems is far from being accurately estimated, but this would be a new challenge given the importance that meiofaunal components may play in marine ecosystem functioning and processes. This Special Issue collects many interesting topics in research on meiofauna contributing to plugging a gap on several key issues in their biodiversity, distribution, and ecology, from numerous reg

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Whomersley, P., M. Huxham, M. Schratzberger, and S. Bolam. "Differential response of meio- and macrofauna to in situ burial." Journal of the Marine Biological Association of the United Kingdom 89, no. 6 (2009): 1091–98. http://dx.doi.org/10.1017/s0025315409000344.

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Benthic nematode and macrofaunal communities are regularly utilized in impact studies. However, very few studies are carried out utilizing both communities. A literature search using the search engine Scopus (www.Scopus.com) covering the last twenty years, using the keywords ‘Macrofauna’ and ‘Disturbance’ then ‘Meiofauna’ and ‘Disturbance’ and finally ‘Macrofauna and Meiofauna’ and ‘Disturbance’, gave 210, 115 and 36 hits respectively. To assess the differential response of meio- and macrofauna to in situ burial a replicated random block designed field experiment was carried out over a 9-month

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Woodhouse, Charlotte, Dannielle Senga Green, Andy Foggo, Paul J. Somerfield, Richard C. Thompson, and Samantha L. Garrard. "Minimal Impacts of Tyre Particle Exposure on Estuarine Meiofaunal Community Structure, Primary Production, and Nutrient Cycling." Journal of Marine Science and Engineering 13, no. 1 (2025): 181. https://doi.org/10.3390/jmse13010181.

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Tyre wear particles are a significant source of primary microplastics in the natural environment with the potential to accumulate in aquatic sediments, yet our understanding of the ecological impact of these particles is limited. Using mesocosms of estuarine sediment containing a model macrofauna community (Scrobicularia plana and Hediste diversicolor), meiofauna, and microphytobenthos, we investigated the impact of exposure to sedimentary tyre particles (0.2, 1, and 5% kg sediment(dw)−1) upon meiofauna community structure, primary production, secondary production, and nutrient fluxes. Under t

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Santos, T. M. T., and V. Venekey. "Meiofauna and free-living nematodes in volcanic sands of a remote South Atlantic, oceanic island (Trindade, Brazil)." Journal of the Marine Biological Association of the United Kingdom 98, no. 8 (2017): 1919–34. http://dx.doi.org/10.1017/s0025315417001710.

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This study presents patterns of spatial and temporal variation in the meiofaunal community and nematode associations on the volcanic sandy beaches of Trindade Island, a remote oceanic island in the South-east Atlantic Ocean. Samples were collected in August (rainy season) and December 2014 (dry season) on four beaches (Tartarugas, Parcel, Cabritos and Portugueses) at three zones of the intertidal (high, mid and low). A total of 10 meiofaunal groups were found. Copepods (31%) and nematodes (27%) dominated the meiofauna in all beaches and zones, regardless of the season. Nematodes were comprised

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Nguyen, Hien Thanh, Lucie Gourdon, Hoi Van Bui, et al. "Ecological Responses of Meiofauna to a Saltier World—A Case Study in the Van Uc River Continuum (Vietnam) in the Dry Season." Water 15, no. 7 (2023): 1278. http://dx.doi.org/10.3390/w15071278.

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Increasing intensity of storms, typhoons, and sea level rise in conjunction with high water demand, especially for agriculture, in dry seasons in the Red River Delta may have led to seawater intruding deeper into the rivers’ estuaries. Given that losses of agricultural productivity and shortages of freshwater resources are projected, a reliable early warning of salinity invasion is, therefore, crucially needed. To evaluate the impact of salinity variations on riverine ecosystems, distribution patterns of meiofauna were examined at 20 stations along the Van Uc River continuum in the dry season.

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Corgosinho, Paulo H. C., Rafael Metri, Cassiana Baptista, Patrícia Calil, and Pedro M. Martinez Arbizu. "Abundance and diversity of the sublittoral meiofauna on two sand beaches under different hydrodynamic conditions at Ilha do Mel (PR, Brazil)." Lundiana: International Journal of Biodiversity 4, no. 2 (2003): 89–94. http://dx.doi.org/10.35699/2675-5327.2003.21858.

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The meiofaunal community of two hydrodynamically different sand beaches was studied at Ilha do Mel, Paraná state (25º29’ S and 48°17’ W), Brazil. The sediment at a sheltered site and at a site exposed to open ocean was dominated mainly by fine sand. At the sheltered site the sediment was less sorted, with some clay, silt and organic matter. Sea water salinity and temperature did not differ between the two sites. Total meiofauna and Nematoda densities were greater at the exposed site. The high vertical migratory capacity of Nematoda in comparison with other meiofaunal taxa, and the almost compl

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Fegley, Stephen R., Julian P. S. Smith, Douglas Johnson, et al. "Nourished, Exposed Beaches Exhibit Altered Sediment Structure and Meiofaunal Communities." Diversity 12, no. 6 (2020): 245. http://dx.doi.org/10.3390/d12060245.

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To retain recreational uses and shoreline protection, a large proportion of ocean beaches have been, and continue to be, nourished. Adding sand from subtidal and terrestrial sources to nourish beaches rarely re-creates the original sediment structure of the beach. Numerous studies have demonstrated that meiofaunal communities are altered by changes in sediment composition in low-energy substrates, therefore, we have explored whether beach nourishment has affected exposed, ocean beach meiofaunal communities. Since the early 2000s, we have conducted a series of sampling and experimental studies

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Coppo, Gabriel C., Araiene P. Pereira, Sergio A. Netto, and Angelo F. Bernardino. "Meiofauna at a tropical sandy beach in the SW Atlantic: the influence of seasonality on diversity." PeerJ 12 (July 12, 2024): e17727. http://dx.doi.org/10.7717/peerj.17727.

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Background Sandy beaches are dynamic environments housing a large diversity of organisms and providing important environmental services. Meiofaunal metazoan are small organisms that play a key role in the sediment. Their diversity, distribution and composition are driven by sedimentary and oceanographic parameters. Understanding the diversity patterns of marine meiofauna is critical in a changing world. Methods In this study, we investigate if there is seasonal difference in meiofaunal assemblage composition and diversity along 1 year and if the marine seascapes dynamics (water masses with par

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Ingels, Jeroen, Yirina Valdes, Letícia P. Pontes, et al. "Meiofauna Life on Loggerhead Sea Turtles-Diversely Structured Abundance and Biodiversity Hotspots That Challenge the Meiofauna Paradox." Diversity 12, no. 5 (2020): 203. http://dx.doi.org/10.3390/d12050203.

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Sea turtles migrate thousands of miles annually between foraging and breeding areas, carrying dozens of epibiont species with them on their journeys. Most sea turtle epibiont studies have focused on large-sized organisms, those visible to the naked eye. Here, we report previously undocumented levels of epibiont abundance and biodiversity for loggerhead sea turtles (Caretta caretta), by focusing on the microscopic meiofauna. During the peak of the 2018 loggerhead nesting season at St. George Island, Florida, USA, we sampled all epibionts from 24 carapaces. From the subsamples, we identified 38,

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Semprucci, F., C. Sbrocca, M. Rocchi, and M. Balsamo. "Temporal changes of the meiofaunal assemblage as a tool for the assessment of the ecological quality status." Journal of the Marine Biological Association of the United Kingdom 95, no. 2 (2014): 247–54. http://dx.doi.org/10.1017/s0025315414001271.

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The Adriatic Sea, being a semi-closed and shallow basin, is more sensitive to anthropogenic impact than other areas of the Mediterranean Sea. Given the crucial role of meiofauna in the marine ecosystems, temporal series of data on this benthic assemblage are fundamental to give new insights into the health status of this basin. A data set (decade 2002–2012) on the meiofauna of two river mouths (Foglia and Metauro) close to a Natural Park (Monte San Bartolo, Central Adriatic Sea) has been analysed and related to several environmental parameters. In particular, changes in the meiofaunal structur

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Peters, Lars, and Walter Traunspurger. "Species distribution of free-living nematodes and other meiofauna in littoral periphyton communities of lakes." Nematology 7, no. 2 (2005): 267–80. http://dx.doi.org/10.1163/1568541054879520.

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AbstractRecent studies on meiofaunal and nematode communities have focused on soft sediments in streams, lakes and marine environments. Despite a large number of studies dealing with periphyton, meiofaunal and nematode communities, on littoral hard substrates in lakes have not yet been investigated in detail. Therefore, epilithic communities with particular emphasis on nematode species composition, were analysed in 17 Swedish lakes differing greatly in size, depth, trophic status and epilithic biomass. Nematode abundance ranged from 2.3 to 161.5 cm−2, and the abundance of nematodes relative to

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Rohde, K., and D. Vaughan. "Equilibria or not? How will deep-sea mining affect benthic marine communities?" Life and Environment 73, no. 1/2 (2024): 13–16. https://doi.org/10.57890/viemilieu/2023.73.1/2:13-16.

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Attempts are underway for large-scale industrial mining for rare earth elements on the ocean floor. Using data from marine meiofauna, we examine whether communities disturbed or destroyed by localized mining will recover and re-establish the original equilibria. Studies of beach meiofauna are more detailed than comparable studies of deep-sea meiofauna, permitting the conclusion that many meiofaunal species do not produce many offspring fast nor disperse widely. Cosmopolitan species are rare. Previous studies have shown an enormous species diversity and the presence of many new taxa. Detailed s

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Martins, Mariana de Oliveira, Tito Cesar Marques de Almeida, and Maikon Di Domenico. "Vertical distribution of meiofauna on reflective sandy beaches." Brazilian Journal of Oceanography 63, no. 4 (2015): 469–80. http://dx.doi.org/10.1590/s1679-87592015095606304.

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Abstract Extreme physical conditions usually limit the meiofauna occurrence and distribution in highly hydrodynamic environments such as reflective beaches. Despite sediment grains of the upper layers being constantly resuspended and deposited, the high energy of the swash zone besides depositing coarse sediments allows an ample vertical distribution of meiofaunal organisms. The effect of physical, chemical and sediment variables on the vertical distribution of meiofaunal organims and nematodes was analysed on two reflective exposed beaches. Sampling was conducted at three sampling points on e

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Laumer, Christopher. "Meiofauna." Current Biology 34, no. 6 (2024): R223—R225. http://dx.doi.org/10.1016/j.cub.2024.02.017.

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Ruswahyuni, Ruswahyuni. "HUBUNGAN ANTARA KELIMPAHAN MEIOFAUNA DENGAN TINGKATAN KERAPATAN LAMUN YANG BERBEDA DI PANTAI PULAU PANJANG JEPARA." Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology 4, no. 1 (2008): 35–41. https://doi.org/10.14710/ijfst.4.1.35-41.

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Meiofauna merupakan salah satu biota yang sangat penting dalam struktur rantai makanan dalam komunitas padang lamun. Biota meiofauna bersifat relatif menetap pada dasar perairan, oleh karena itu adanya perubahan lingkungan akibat eksploitasi dan pencemaran yang berlebihan dapat mengurangi kelimpahan organisme meiofauna sehingga secara tidak langsung juga mempengaruhi ekosistem. Metoda yang digunakan dalam penelitian adalah metode deskriptif. Pengambilan sampel dilakukan sebanyak 3 kali ulangan dengan interval waktu berdasarkan surut terendah dari pasang surut air laut. Sampling dilakukan pada

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Assy, Dwi, Niniek Widyorini, and Ruswahyuni. "HUBUNGAN KELIMPAHAN MEIOFAUNA PADA KERAPATAN LAMUN YANG BERBEDA DI PULAU PANJANG, JEPARA." Management of Aquatic Resources Journal (MAQUARES) 2, no. 3 (2013): 226–32. http://dx.doi.org/10.14710/marj.v2i3.4219.

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Lamun merupakan salah satu sumberdaya laut yang sangat potensial dan dapat dimanfaatkan. Organisme benthos seperti meiofauna menepati posisi yang sangat penting dalam proses biodegradasi di ekosistem pantai. Meiofauna bersifat relatif menetap pada dasar perairan. Penelitian ini bertujuan untuk mengetahui kelimpahan meiofauna pada kerapatan lamun yang berbeda di Pantai Pulau Panjang, Jepara dan mengetahui hubungan antara kerapatan lamun yang berbeda dengan kelimpahan meiofauna. Metode pengambilan sampel dan pengamatan meiofauna adalah sampel diambil 7 titik dari setiap stasiun, pengambilan samp

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Tita, G., G. Desrosiers, and M. Vincx. "New type of hand-held corer for meiofaunal sampling and vertical profile investigation: a comparative study." Journal of the Marine Biological Association of the United Kingdom 80, no. 1 (2000): 171–72. http://dx.doi.org/10.1017/s0025315499001691.

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A new hand-held corer for meiofaunal sampling and vertical profile investigation was developed. Its design and use prevents problems connected with core compression caused by the use of a plunger for core extrusion as generally applied in common coring techniques. This represents an advantage when meiofauna vertical profiles are investigated. A comparison between vertical profiles obtained from the newly developed corer and from commonly used corers shows that non-extrusive techniques significantly reduce sediment core compression.

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Gooday, A. J., O. Pfannkuche, and P. J. D. Lambshead. "An Apparent Lack of Response By Metazoan Meiofauna to Phytodetritus Deposition in the Bathyal North-Eastern Atlantic." Journal of the Marine Biological Association of the United Kingdom 76, no. 2 (1996): 297–310. http://dx.doi.org/10.1017/s0025315400030563.

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Metazoan meiofauna were studied in replicated multiple-corer samples obtained at a bathyal site (1320–1360 m depth) in the Porcupine Seabight (51°36′N 13°00′W) before (April) and after (July) the delivery to the seafloor of a phytodetrital pulse originating from the 1982 spring bloom. In all samples the metazoan meiofauna was dominated by nematodes; harpacticoid copepods and their nauplii were the second most abundant taxon. Population densities and biomass were very similar in both sample sets, the only significant differences being in the numbers of ostracods (higher in April) and nauplii (h

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Wowor, Nicky M., Fontje G. Kaligis, and Carolus Paruntu. "Struktur Komunitas Meiofauna Pada Hutan Mangrove Di Pesisir Dusun Kuala Batu Kecamatan Likupang Timur Kabupaten Minahasa Utara." JURNAL PESISIR DAN LAUT TROPIS 4, no. 1 (2016): 1. http://dx.doi.org/10.35800/jplt.4.1.2016.11329.

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Meiofauna adalah hewan avertebrata perairan berukuran kecil (63–1000 μm) yang hidup pada habitat hutan mangrove. Belum ada infomasi tentang jenis-jenis, distribusi dan keanekaragaman spesis meiofauna pada hutan mangrove di pesisir Dusun Kuala Batu. Penelitian ini bertujuan untuk; Mengetahui jenis-jenis, distribusi dan keanekaragaman spesies meiofauna pada hutan mangrove Dusun Kuala Batu. Lokasi penelitian ini berada di wilayah pesisir Dusun Kuala Batu Desa Serawet Kecamatan Likupang Timur Kabupaten Minahasa Utara. Metode yang digunakan adalah metode survey jelajah dan metode line transek kuadr

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Chelchowski, Maciej, Piotr Balazy, Katarzyna Grzelak, et al. "Vertical zonation of benthic invertebrates in the intertidal zone of Antarctica (Admiralty Bay, King George Island)." Antarctic Science 34, no. 1 (2021): 29–44. http://dx.doi.org/10.1017/s095410202100047x.

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AbstractThe Antarctic Peninsula is undergoing rapid change due to global warming, including air and water temperature increases. Fauna inhabiting the intertidal zone are particularly exposed to warming impacts, as they are subjected to high variations in both terrestrial and marine environmental settings. This study aimed to assess intertidal macrofaunal and meiofaunal biodiversity, tidal height-related assemblage structural patterns and their responses to variability in environmental parameters on King George Island. A total of 39 macrofaunal taxa were identified, with polychaetes and amphipo

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Yusal, Muh Sri, and Ahmad Hasyim. "Kajian Kualitas Air Berdasarkan Keanekaragaman Meiofauna dan Parameter Fisika-Kimia di Pesisir Losari, Makassar." Jurnal Ilmu Lingkungan 20, no. 1 (2022): 45–57. http://dx.doi.org/10.14710/jil.20.1.45-57.

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Pesisir merupakan kawasan yang rentan mengalami penurunan kualitas perairan akibat masuknya bahan-bahan pencemar hasil aktivitas antropogenik dari daratan. Penelitian ini bertujuan untuk untuk mengkaji kualitas perairan berdasarkan keanekaragaman meiofauna dan parameter fisika-kimia di pesisir Losari, Makassar. Selain itu penelitian ini dilakukan untuk menganalisis pengaruh parameter fisika-kimia terhadap keanekaragaman meiofauna di dasar perairan. Penelitian ini bersifat kuantitatif dengan teknik pengambilan data secara purposive sampling. Status kualitas perairan di pesisir Losari dikategori

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Jobson, Richard W., E. Charles Morris, and Shelley Burgin. "Carnivory and nitrogen supply affect the growth of the bladderwort Utricularia uliginosa." Australian Journal of Botany 48, no. 4 (2000): 549. http://dx.doi.org/10.1071/bt99039.

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A glasshouse experiment was designed to determine whether the terrestrial bladderwort species Utricularia uliginosa Vahl. gained any growth advantage from carnivory at different levels of nitrogen enrichment of the substrate. Three organism treatments were used: a control, a protist-only treatment (Euglena spp.) and a protist + meiofauna treatment (Euglena spp. plus nematodes, copepods, ostracods, cladocerans and Acarina). The organism treatments were factorially combined with three nitrogen levels (N0, N1, N2). Populations of Euglena were successfully established in the substrate of pots in t

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Maria, Tatiana Fabricio, Adriane Pereira Wandeness, and André Morgado Esteves. "State of the art of the meiofauna of Brazilian Sandy Beaches." Brazilian Journal of Oceanography 64, spe2 (2016): 17–26. http://dx.doi.org/10.1590/s1679-875920160946064sp2.

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Abstract In Brazil, meiofauna studies began in the middle of last century, but they adopted a purely taxonomical approach, describing species from various zoological groups. After this first step, this benthic group was largely neglected until the end of the 20th century when ecological studies began. We here provide a brief review of present knowledge of the meiofauna found on Brazilian sandy beaches to provide information for ReBentos (Coastal Benthic Habitats Monitoring Network). Our methodology consisted of a bibliographic survey undertaken using different datasets (Web of ScienceTM, SCOPU

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Santos, Suelen Nascimento dos, Fernando Cartaxo Rolim Neto, Matheus Assis Oliveira, et al. "Neglected area of meiobenthos: bibliometric analysis in the status of research on hyporheic meiofauna." Journal of Environmental Analysis and Progress 8, no. 4 (2023): 252–62. http://dx.doi.org/10.24221/jeap.8.4.2023.5851.252-262.

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Studies on freshwater meiofauna are still enigmatic. This field of research is relatively neglected because this topic is not as increasing as the others, creating a gap in this area. The deficit of knowledge and surveys impose a barrier on new research and researchers to emerge and on the increase of scientific interest in this area. This paper contains a brief review of what already exists on freshwater meiofauna worldwide, focusing on increasing knowledge on this topic and making this little-known area of meiofauna a common study field in science. The methodology involved a bibliographic su

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Soltwedel, Thomas, Katarzyna Grzelak, and Christiane Hasemann. "Spatial and Temporal Variation in Deep-Sea Meiofauna at the LTER Observatory HAUSGARTEN in the Fram Strait (Arctic Ocean)." Diversity 12, no. 7 (2020): 279. http://dx.doi.org/10.3390/d12070279.

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Time-series studies at the LTER (Long-Term Ecological Research) observatory HAUSGARTEN have yielded the world’s longest time-series on deep-sea meiofauna and thus provide a decent basis to investigate the variability in deep-sea meiobenthic communities at different spatial and temporal scales. The main objective of the present study was to investigate whether the sediment-dwelling meiofauna (size range: 32–1000 µm) is controlled by small-scale local environmental conditions, rather than large-scale differences between water depths. Univariate and multivariate statistical analyses, including di

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Santos, Paulo J. P., Mônica L. Botter-Carvalho, Ananias B. do Nascimento-Júnior, Raquel G. C. Marinho, Paulo V. V. C. Carvalho, and Ana P. M. C. Valença. "Response of estuarine meiofauna assemblage to effects of fertilizer enrichment used in the sugar cane monoculture. Pernambuco, Brazil." Brazilian Journal of Oceanography 57, no. 1 (2009): 43–55. http://dx.doi.org/10.1590/s1679-87592009000100005.

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In situ application of inorganic fertilizer was used to simulate environmental eutrophication associated with the sugar cane monoculture. Meiofauna community structure is herein used to assess this experimental impact. Nine quadrangular areas (4m² each) were randomly defined in the midlittoral estuarine area. Three of these areas received a high dose of sugar cane fertilizer (375 g/m² Nitrogen-Phosphorus-Potassium), three areas received a low dose of the fertilizer (187.5 g/m²) and the other three areas represented the control. The fertilizer was applied every week. Environmental parameters an

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