A meta-analysis approach to the effects of fish farming on soft bottom polychaeta assemblages in temperate regions

Martínez‐García, Elena; Sánchez-Jérez, Pablo; Aguado‐Giménez, Felipe; Ávila, Pablo; Guerrero, Alejandro; Sánchez-Lizaso, José Luis; Fernandez-González, Victoria; González, Nieves; Gairín, J.I.; Carballeira, C.; García‐García, Benjamín; Carreras, Jordi; Macias, Jose Carlos; Carballeira, A.; Collado, Cayetano

doi:10.1016/j.marpolbul.2013.01.032

Cited by 43 publications

(40 citation statements)

References 56 publications

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“…As a consequence, fish-farm biodeposition, by releasing organic and nutrient loads in the surrounding waters, is affecting the marine ecosystem in many ways (Holmer 2010). For instance, the excess fodder used for carnivorous fish, together with their faeces, are responsible for significant changes in sediment chemistry (Karakassis et al 2002, Holmer et al 2003 and in benthic flora and fauna (Duplisea & Hargrave 1996, Mazzola et al 2000, La Rosa et al 2001, Mirto et al 2002, Grego et al 2009, Vidovic et al 2009, Moreno et al 2011, Martinez-Garcia et al 2013. Moreover, as fish cages are frequently installed in protected costal areas, their presence could affect different habitats, and among them, seagrasses can be considered as one of the most susceptible ecosystems to fish-farm biodeposition (Holmer et al 2008, Rountos et al 2012.…”

Section: Introductionmentioning

confidence: 99%

Nematode assemblage response to fish-farm impact in vegetated (Posidonia oceanica) and non‑vegetated habitats

Mirto¹,

Arigo²,

Genovese³

et al. 2014

Aquacult. Environ. Interact.

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We investigated the impact of fish farming on the benthic biota of 2 habitats (seagrass meadows of Posidonia oceanica and non-vegetated soft bottoms), by examining in detail the nematode assemblages, and the effects of organic enrichment on their abundance, diversity (species richness and trophic diversity), community structure and individual size. All investigated faunal variables differed significantly between impact and control sediments, except for individual nematode biomass. Nematodes displayed reduced biodiversity beneath the investigated fish farms in both vegetated and non-vegetated habitats. The nematode genera Richtersia, Desmoscolex and Halalaimus were highly sensitive to biodeposition and disappeared almost completely in farm sediments, whereas other genera such as Daptonema and Prochromadorella largely increased their relative abundance. The impact of biodeposition was investigated also in terms of K-dominance curves and functional variables (life strategies as maturity index, and functional [i.e. trophic] diversity) which showed that nematodes are very sensitive to this kind of environmental disturbance. Our results indicate that the analysis of nematode assemblage composition, the life traits of the dominant species and the presence/disappearance of certain nematode species represent a reliable tool for monitoring the quality state of marine sediments exposed to fish-farm organic wastes.

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Section: Introductionmentioning

confidence: 99%

Nematode assemblage response to fish-farm impact in vegetated (Posidonia oceanica) and non‑vegetated habitats

Mirto¹,

Arigo²,

Genovese³

et al. 2014

Aquacult. Environ. Interact.

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“…Some of the most important documented effects of aquaculture comprise increase in organic matter contents and compositional changes of the sediment below fish cages, alteration of inorganic and organic chemistry of farm water and sediments, alteration of abundance, biomass and biodiversity of micro, meio and macro benthic communities and modification of distributional patterns of phytoplankton and microzooplankton abundance and production [75][76][77][78]. Although large-scale modification of the trophic status (i.e., nutrient concentrations and phytoplankton biomass) of marine areas has been described as a consequence of fish farming [75], most of the described impacts are confined to within 25 m up to 1 km distance [79,80].…”

Section: Fish Farmingmentioning

confidence: 99%

Boosting Blue Growth in a Mild Sea: Analysis of the Synergies Produced by a Multi-Purpose Offshore Installation in the Northern Adriatic, Italy

et al. 2015

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Abstract:In the near future, the oceans will be subjected to a massive development of marine infrastructures, including offshore wind, tidal and wave energy farms and constructions for marine aquaculture. The development of these facilities will unavoidably exert environmental pressures on marine ecosystems. It is therefore crucial that the economic costs, the use of marine space and the environmental impacts of these activities remain within acceptable limits. Moreover, the installation of arrays of wave energy devices is still far from being economically feasible due to many combined aspects, such as immature technologies for energy conversion, local energy storage and moorings. Therefore, multi-purpose solutions combining renewable energy from the sea (wind, wave, tide), aquaculture and transportation facilities can be considered as a challenging, yet advantageous, way to boost blue growth. This would be due to the sharing of the costs of installation and using the produced energy locally to feed the different functionalities and optimizing marine spatial planning. This paper focuses on the synergies that may be produced by a multi-purpose offshore installation in a relatively calm sea, i.e., the Northern Adriatic Sea, Italy, and specifically offshore Venice. It analyzes the combination of aquaculture, energy production from wind and waves, and energy storage or transfer. Alternative solutions are evaluated based on specific criteria, including the maturity of the technology, the environmental impact, the induced risks and the costs. Based on expert judgment, the alternatives are ranked and a preliminary layout of the selected multi-purpose installation for the case study is proposed, to further allow the exploitation of the synergies among different functionalities.

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“…This approach to EMPs focuses on the interactions between aquaculture and benthic ecosystems, in particular, increases in organic enrichment (from uneaten food and fish faeces) and the sensitiveness of benthic assemblages to detecting environmental impacts (Papageorgiou et al 2010, Martinez-Garcia et al 2013, Mangion et al 2014). This incremental increase in organic matter (OM) over the benthos may affect sediment biogeochemistry (Karakassis et al 2005), causing oxygen depletion, augmentation of nutrient efflux and decreased benthic fauna diversity (Pearson and Rosenberg 1978, Hargrave et al 2008.…”

Section: Introductionmentioning

confidence: 99%

“…Some polychaetes are regarded as pollution tolerant, because they can survive in advanced stages of disturbance, while other species are regarded as pollution sensitive, because they are not able to persist under stress conditions (Pearson andRosenberg 1978, Giangrande et al 2005). Some authors (Tomassetti and Porrello 2005, Martinez-Garcia et al 2013, Aguado-Giménez et al 2015 have tested the use of polychaete assemblages to study disturbances originating from fish farm facilities and concluded that these assemblages give accurate information about the quality of the environment.…”

Section: Introductionmentioning

confidence: 99%

From paper to practice: an initial approach to implementation of the environmental monitoring plan for fish farming proposed by JACUMAR

et al. 2018

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Summary:The Spanish National Advisory Board of Mariculture (JACUMAR) developed an initiative to unify methodologies between the regions of Spain, in which they proposed the implementation of site-specific "Environmental Monitoring Plans" (EMPs). In this study, we tested the feasibility of an EMP on a fish farm in the Mediterranean Sea. The methods and tools proposed in the EMP are highly useful for environmental monitoring of aquaculture. However, spatial heterogeneity figured prominently in a univariate analysis with environmental variables and a multivariate analysis of polychaete assemblages. This variability may be due to habitat patchiness, and may therefore be solved by an improved experimental design, e.g. by adding replications for increasing statistical power. Multivariate analysis of polychaete assemblages provided accurate information about the quality of the sediment. This information could also be improved using ecological data about key polychaete families in order to avoid misleading results. Thus, the JACUMAR EMP has proved useful in providing precise information about the ecological status of marine benthic habitats, meeting the requirements of current European Directives. However, we suggest that some modifications may be required in order to account for possible misleading thresholds for environmental quality standards, spatial heterogeneity and increasing power analyses.Keywords: aquaculture; environmental management; spatial variations; abiotic parameters; polychaete assemblages; environmental monitoring plan.Del papel a la práctica: una primera aproximación a la implementación del plan de seguimiento ambiental para acuicultura propuesto por JACUMAR Resumen: La Junta Nacional Asesora de Cultivos Marinos (JACUMAR) desarrolló una iniciativa para unificar metodologías entre las regiones de España, en la que propusieron la implementación de "Planes de Seguimiento Ambiental" (EMP) específicos de cada caso. En este estudio se ha evaluado la viabilidad del EMP en una granja de peces del Mediterráneo. Los métodos y herramientas propuestos en el EMP son de gran utilidad para el seguimiento ambiental de la acuicultura. Sin embargo, la heterogeneidad espacial ha jugado un papel destacado en los análisis uni-variante con variables ambientales y multi-variante de las comunidades de poliquetos. Esta variabilidad puede ser debida a la heterogeneidad de los hábitats y, por tanto, debe resolverse mejorando el diseño experimental, p. ej. añadiendo réplicas en el muestreo para aumentar la potencia estadística. El análisis multi-variante de las comunidades de poliquetos ha proporcionado información precisa sobre la calidad del sedimento. Esta información también podría mejorarse utilizando datos ecológicos sobre las principales familias de poliquetos, con el fin de evitar resultados que pudieran inducir a errores. Por todo lo anterior, el EMP propuesto por JA-CUMAR ha demostrado ser útil para proporcionar información precisa sobre el estado ecológico de los hábitats bentónicos marinos, cumpliendo con los requis...

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A meta-analysis approach to the effects of fish farming on soft bottom polychaeta assemblages in temperate regions

Cited by 43 publications

References 56 publications

Nematode assemblage response to fish-farm impact in vegetated (Posidonia oceanica) and non‑vegetated habitats

Nematode assemblage response to fish-farm impact in vegetated (Posidonia oceanica) and non‑vegetated habitats

Boosting Blue Growth in a Mild Sea: Analysis of the Synergies Produced by a Multi-Purpose Offshore Installation in the Northern Adriatic, Italy

From paper to practice: an initial approach to implementation of the environmental monitoring plan for fish farming proposed by JACUMAR

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