Aquaculture effects on environmental and public welfare – The case of Mediterranean mariculture

Grigorakis, Kriton; Rigos, George

doi:10.1016/j.chemosphere.2011.07.015

Cited by 176 publications

(107 citation statements)

References 208 publications

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“…Farmed escapees can affect wild populations through (1) predation and competition for food, (2) spatial and breeding opportunities, (3) the spread of parasites and diseases, and (4) interbreeding with wild fish (Jonsson & Jonsson 2006, Grigorakis & Rigos 2011. Escaped gilthead sea bream are able to survive for months in the wild (Arechavala-Lopez et al 2011, 2012a, where they can interact with local fish populations, potentially changing the genetic structure of the latter through introgression.…”

Section: Introductionmentioning

confidence: 99%

Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management

Šegvić-Bubić¹,

Talijančić²,

Grubišić³

et al. 2014

Aquacult. Environ. Interact.

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A combination of molecular and morphological characteristics was used to investigate populations of wild and farmed gilthead sea bream Sparus aurata from the largest Croatian shellfish production area, Mali Ston Bay. Identification of farmed escapees was performed in the wild in order to evaluate and compare the detection sensitivity of molecular and morphological tools. Using a traditional set of measurements and a truss network system, morphometric trait analysis of gilthead sea bream showed clear body shape differences between individuals from the wild and farmed populations. Microsatellite markers only revealed weak neutral genetic differentiation between farmed and wild samples from Mali Ston Bay (Wright's F ST = 0.019, p > 0.05; Jost's D EST = 0.022), despite the fact that the farmed gilthead sea bream were of Atlantic origin. Using assignment tests, morphological (16%) and molecular (25%) analysis identified farmed escapees in the samples of wild gilthead sea bream in the vicinity of aquaculture sites. Morphological data showed good potential for distinguishing recent escapees in wild populations, since these characteristics are affected by the environment. This study demonstrates the presence of escapees in the local wild population in this region, and suggests the potential for genetic interaction.

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Section: Introductionmentioning

confidence: 99%

Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management

Šegvić-Bubić¹,

Talijančić²,

Grubišić³

et al. 2014

Aquacult. Environ. Interact.

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“…However, the rapid development of aquaculture has caused serious environmental concerns, which include sediment organic enrichment and eutrophication, pollutions derived from the application of pharmaceuticals, feeds, antibiotics, and heavy metals [2,3]. The diversity and composition of microbial communities is well known to be influenced by these chemical and biochemical environmental inputs [4,5].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Mariculture on the Diversity of Bacterial Communities within Intertidal Sediments in the Northeast of China

et al. 2013

Microb Ecol

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Mariculture is one of the major seafood supplies worldwide and has caused serious environmental concerns on the coastal zone. Its rapid development has been shown to disrupt the sediment ecosystems and thus influence the benthic bacterial communities. Bacterial diversity and community structure within both adjacent farms and non-cultured zones intertidal sediments along the coasts of Qinhuangdao and Dalian, China, were investigated using full-length 16S rRNA gene-based T-RFLP analyses and clone library construction. Richness and Shannon-Wiener index were significantly increased at sites adjacent the mariculture farm with mean values of 29 and 2.97 from peak profiles of T-RFLP result. Clustering analyses suggested that impacts of mariculture on bacterial diversity of sediment were significantly larger than those resulted from temporal and spatial scales. Upon comparisons of RFLP patterns from 602 clones from libraries of the selected five samples, 137 OTUs were retrieved. Members of γ-and δ-Proteobacteria, Bacilli, Flavobacteria, and Actinobacteria were recorded in all libraries. In addition, γ-Proteobacteria were dominant in all samples (21.7~45.0 %). Redundancy analysis revealed that the distribution of bacterial composition seemed to be determined by the variables of salinity, PO 4 3− -P, NH 4 + -N, and Chlorophyll a content. The phyla of γ-Proteobacteria, Clostridia, Flavobacteria, Bacilli, and Planctomycetes were principal components to contribute to the bacterial differences of clone libraries. Our finding demonstrated that these phyla could display variations of bacterial composition linked to environmental disturbance resulted from mariculture.

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“…Indeed, the conflicts between aquaculture and other interests are typically due to negative environmental effects from aquaculture, or competition over marine areas (Primavera 2006). Changes in environmental conditions due to aquaculture can be measured technically (Grigorakis and Rigos 2011) and thus rather objectively. Assessing the impact or severity of a change in the natural environment due to aquaculture, and even more so in offshore environments, is however more difficult.…”

Section: Negative Effects Of Aquaculture Production Activities and Comentioning

confidence: 99%

The Socio-economic Dimensions of Offshore Aquaculture in a Multi-use Setting

Krause¹,

Mikkelsen

2017

Aquaculture Perspective of Multi-Use Sites in the Open Ocean

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Decision-making within the marine realm is a complex process, which endorses ecological, societal and economic needs and they must therefore be managed jointly. Much of the formerly "free oceans" is nowadays subject to intensive uses, thus making the need to optimise the management of the resources within a multifunctional and multi-use(r) context apparent. The high competition for functions and uses of inshore and nearshore waters has given strong incentives to investigate the opportunities of moving industrial activities offshore. The current raise of offshore aquaculture is one prominent example of this. However, our understanding of the social dimensions and effects of offshore aquaculture is yet incomplete. We need to consider also how different multi-use settings for offshore aquaculture affect the socio-economic outcomes on various levels. During the development of offshore aquaculture, this multifunctional perspective has emerged especially for the combination with offshore wind farms. This synergy of two different stakeholders, the so-called multifunctional utilisation of marine areas, can be viewed as a new concept by the implementation of integrated, consensus-based resource planning conditions. We suggest a typology of social dimensions of marine aquaculture, based on the literature of "traditional" nearshore aquaculture. Based on this typology we discuss the current level of knowledge on the socio-economic dimensions of multi-use offshore aquaculture and point to further research needs.

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Aquaculture effects on environmental and public welfare – The case of Mediterranean mariculture

Cited by 176 publications

References 208 publications

Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management

Morphological and molecular differentiation of wild and farmed gilthead sea bream Sparus aurata: implications for management

Impacts of Mariculture on the Diversity of Bacterial Communities within Intertidal Sediments in the Northeast of China

The Socio-economic Dimensions of Offshore Aquaculture in a Multi-use Setting

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