Microbial and Meiofaunal Response to Intensive Mussel-Farm Biodeposition in Coastal Sediments of the Western Mediterranean

Mirto, Simone; Rosa, T. La; Danovaro, Roberto; Mazzola, Antonio

doi:10.1016/s0025-326x(99)00209-x

Cited by 160 publications

(107 citation statements)

References 21 publications

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“…However, an intensive shellfish farming still can result in the accumulation of a large amount of organic matter on the seabed below the farm (Mirto et al, 2000;Grant et al, 2012) and a decrease of dissolved oxygen in seawaters (Kaiser, 2000). Consequently, some case studies have shown evidence of negative effects on benthic communities via the intense biodeposition of feces and pseudofeces (e.g., Gilbert et al, 1997;Smith & Shackley, 2004;da Costa & Nalesso, 2006;Dubois et al, 2007;Fabi et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effects of intensive scallop mariculture on macrobenthic assemblages in Sishili Bay, the northern Yellow Sea of China

et al. 2013

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To elucidate the effects of scallop mariculture on the macrobenthic community in a moderate energy system, bimonthly samples from four transects along a distance gradient in Sishili Bay, the northern Yellow Sea of China, were investigated. Differences in macrobenthic community structure along the distance gradient were evaluated using univariate and multivariate analyses. The AZTI's Marine Biotic Index (AMBI) and multivariate-AMBI analyses indicated that the macrobenthic community suffered little disturbance from the scallop culture. Consistently, the results of two-way analysis of similarities demonstrated that macrobenthic communities showed no difference along the distance gradient, but were significantly affected by the sampling months and transects. This conclusion was also confirmed by other univariate and multivariate analyses. The concentration of total organic carbon was 17.27 ± 6.05 mg g -1 , which is below the dangerous threshold of 35 mg g -1 toxic to benthic fauna. Combined results revealed that no detectable effects on the macrobenthic community were caused by intensive and long-term scallop culture in this moderate energy system. This is likely due to the influence of local hydrodynamics and it is recommended that intensive scallop farming be located in areas with strong tidal or current flows.

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Section: Introductionmentioning

confidence: 99%

Effects of intensive scallop mariculture on macrobenthic assemblages in Sishili Bay, the northern Yellow Sea of China

et al. 2013

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“…Due to their small size, high turnover, and the lack of larval dispersion, meiofauna have attracted increasing interest due to their being a marker of environmental changes (Higgins & Thiel, 1988;Coull & Chandler, 1992), and particularly to their being a useful tool for monitoring the impact of aquaculture activities (Mazzola et al, 2000;Mirto et al, 2000). In the present study, the meiobenthic community was used to examine the ecological impact of hand raking for Manila clams.…”

Section: Introductionmentioning

confidence: 99%

Disturbance of a soft‐sediment meiobenthic community by clam hand raking

Mistri

Cason

Cristina

et al. 2004

Italian Journal of Zoology

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A meiobenthic community was utilized to examine the ecological impact of hand raking for Manila clams in the Sacca di Goro. Two adjacent plots were chosen: the "control" plot was left undisturbed, while, in the "raked" plot, at the beginning of the experiment, a shellfish farmer completely raked the sediment. The meiobenthos at both sites was relatively impoverished, the harpacticoid community being constituted by only a few taxa. Within two days, meiofaunal abundance at the raked plot was similar to the adjacent unharvested control area. Nematodes, however, recovered more quickly than harpacticoids. The short recolonization time probably indicates that meiobenthic populations form a dynamic assemblage with a remarkable dispersal ability, allowing them to recover quickly from small-scale disturbance.

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“…Studying the effect of mussel culture on nematodes, CASTEL et al (1989), GUELORGET et al (1994) and MAHMOUDI et al (2008) found an increase in densities; MIRTO et al (2000) and NETTO and VALGAS (2007) reported a decrease in abundances and DANOVARO et al (2004) and PINTO et al (2007) found no significant changes. Concerning the effect of shrimp farm impacts, PATRONA et al (2012) found a decrease in meiobenthos abundance and NETTO and MEURER (2007) registered a decrease in nematode abundance but only after the postcultivation period.…”

Section: Discussionmentioning

confidence: 99%

“…Meiofauna has also been used in studies of environmental impact caused by worldwide farming, such as that of mussel farms (MIRTO et al, 2000;DANOVARO et al, 2004;PINTO et al, 2007;MAHMOUDI et al, 2008;VALGAS, 2010), fish farms (MAZZOLA et al, 1999;LA ROSA et al, 2001;MIRTO et al, 2002;SUTHERLAND et al, 2007;GREGO et al, 2009;RIERA et al, 2011;MIRTO et al, 2012;RIERA et al, 2012) and that of seaweed (ÓLAFSSON et al, 1995). These studies have used the whole meiofauna community, or isolated groups as Nematoda and Copepoda, and as a general rule the faunal responses are rather uniform with an initial enrichment in meiofaunal numbers and a decrease in diversity with an increase in the dominance of a few species (GIERE, 2009).…”

Section: Introductionmentioning

confidence: 99%

Nematodes as indicators of shrimp farm impact on an amazonian estuary (Curuçá, Pará, Brazil)

Venekey

Melo

2016

Braz. j. oceanogr.

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Shrimp farming reduces demand on wild fishery stocks and avoids environmental damage resulting from fishing practices, however, it has the potential to affect the water quality if not properly managed. In this study the impacts of a shrimp farm in an Amazonian estuary were evaluated, focusing on changes in nematodes regarding taxonomic composition, richness, density and diversity. Sampling was conducted in August 2004 (dry season) and January 2005 (rainy season) in the river at stations situated upstream and downstream at different distances from the main source of farm effluent discharge. Thirty-eight genera were recorded with Terschellingia dominating in the dry season and Terschellingia, Daptonema, Ptycholaimellus and Gomphionema in the rainy season. Abundances were within the range recorded in other estuaries and together with genera richness and diversity showed a strong temporal pattern with significantly higher values in the rainy season. No clear patterns of changes were observed at the stations. Some signs of organic enrichment were detected but they were not yet intense, probably a consequence of the strong local hydrodynamics and the age of the shrimp farm, which was just starting its operation. We recommend that in future studies on farming impacts a combination of factors, beyond the physical and chemical parameters of the water and sediments or taxonomic refinement, should be taken into accountsuch as the duration of the operation of the farm, the area occupied by ponds and the farm's production. Furthermore, we also believe that nematodes are a useful tool for evaluating aquaculture impacts due to the ease of sampling and because they are organisms at the base of marine food chain. A carcinocultura reduz a demanda de estoques pesqueiros naturais e evita o dano ambiental resultante da pesca. Entretanto, tem o potencial de afetar a qualidade da água quando não manejada apropriadamente. Nesse trabalho, os impactos de uma fazenda de carcinocultura foram avaliados em um estuário amazô-nico focando nas mudanças de composição taxonô-mica, riqueza, densidade e diversidade de Nematoda. A amostragem ocorreu em agosto de 2004 (período seco) e janeiro de 2005 (período chuvoso) a montante e jusante em locais situados a diferentes distâncias do principal local de descarga de efluentes da fazenda. Trinta e oito gêneros foram encontrados, com dominância de Terschellingia na estação seca e Terschellingia, Daptonema, Ptycholaimellus e Gomphionema na estação chuvosa. As abundâncias foram similares às encontradas em outros estuários e, juntamente com a riqueza e diversidade, apresentaram um forte padrão sazonal com valores significativamente maiores na estação chuvosa. Nas estações de coleta não foram encontrados padrões claros de mudanças. O estuário de Curuçá mostrou alguns sinais de enriquecimento orgânico ainda não intensos, provavelmente devido à forte hidrodinâmica local e à idade da fazenda, que recentemente começou suas atividades. Recomenda-se que no futuro os trabalhos sobre impactos de cultivo, além dos pa...

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Microbial and Meiofaunal Response to Intensive Mussel-Farm Biodeposition in Coastal Sediments of the Western Mediterranean

Cited by 160 publications

References 21 publications

Effects of intensive scallop mariculture on macrobenthic assemblages in Sishili Bay, the northern Yellow Sea of China

Effects of intensive scallop mariculture on macrobenthic assemblages in Sishili Bay, the northern Yellow Sea of China

Disturbance of a soft‐sediment meiobenthic community by clam hand raking

Nematodes as indicators of shrimp farm impact on an amazonian estuary (Curuçá, Pará, Brazil)

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