Fishing management scenarios to rebuild exploited resources and ecosystems of the Northern-Central Adriatic (Mediterranean Sea)

Fouzai, Nadia; Coll, Marta; Palomera, Isabel; Santojanni, Alberto; Arneri, Enrico; Christensen, Villy

doi:10.1016/j.jmarsys.2012.05.003

Cited by 56 publications

(46 citation statements)

References 54 publications

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“…These impacts are evident in the Mediterranean Sea, which combines a long history of exploitation with a high level of social, economic, and political complexity that present major challenges for effective marine management and conservation Micheli et al, 2013a,b). To date, 85% of assessed Mediterranean stocks are overfished (Colloca et al, 2013), and current fisheries management is considered inadequate (Fouzai et al, 2012). The management strategies adopted in the Mediterranean basin largely take a single species approach instead of an ecosystem-base management approach (de Juan et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…The management strategies adopted in the Mediterranean basin largely take a single species approach instead of an ecosystem-base management approach (de Juan et al, 2012). Most regulations are aimed at reducing fishing effort and fishing capacity, and/or at implementing technical measures such as the regulation of mesh size, the establishment of a minimum landing size, and temporal, mostly seasonal fishing closures (de Juan et al, 2012;Fouzai et al, 2012;Colloca et al, 2013). However, scientific advice is rarely used to implement the spatial and temporal fisheries management strategies needed to achieve sustainable yields and to preserve the ecological role of the exploited species and their habitats (Colloca et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies, most of which conducted in the northern Adriatic Sea, have described negative trends and chronic effects of commercial species and benthic communities due to trawling activities (HallSpencer et al, 1999;Jukic-Peladic et al, 2001;Pranovi et al, 2001Pranovi et al, , 2005Morello et al, 2005;Romanelli et al, 2009). More than 90% of Adriatic marine resources are depleted and the current management of fisheries is inadequate (Lotze et al, 2011;Fouzai et al, 2012). Mean discard rate in Adriatic bottom trawl fisheries ranges between 20 and 67% of total catches, higher than the Mediterranean average (Tsagarakis et al, 2013;, with a rate that varies according to fishing intensity.…”

Section: Introductionmentioning

confidence: 99%

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Local Ecological Knowledge Indicates Temporal Trends of Benthic Invertebrates Species of the Adriatic Sea

et al. 2017

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In the Adriatic Sea, shifts in benthic community structure have been attributed to multiple stressors, from the effects of climate change to the impacts of commercial fishing. Some fishing practices, such as bottom trawling, have caused a widespread decline in exploited fish stocks. Bottom trawling is also expected to have negative impacts on benthic habitats, usually structured by and hosting a large array of invertebrate species, which provide important ecological services to fish and commercial invertebrate stocks. However, in contrast to commercial species for which long-term time series of the abundance exist, data on these habitat-forming invertebrates are scarce, as they are usually caught as bycatch and discarded. Therefore, there is great uncertainty about their long-term trends, and if these populations are stable or declining. Here we used interview surveys conducted with bottom-trawling fishers of the central Adriatic Sea to gather local ecological knowledge on megabenthos abundance occurring in their fishing domain, as an alternative source of information to conventional fisheries data. We interviewed 44 fishers, from the most important ports of the Marche region of Italy, to understand how megabenthic species have changed in abundance within the area since the 1980s. Specifically, we asked fishers to provide qualitative abundance scores for 18 invertebrate species in five phyla (Porifera, Cnidaria, Bryozoa, Mollusca, and Echinodermata) based on their recollection of these species' presence in bycatch. We stratified responses in homogeneous temporal periods and geographic sectors of the study area, and analyzed their response with mixed effect ordered logistic regression models in order to evaluate spatiotemporal changes in the perceived abundance of each species. Our analysis suggests that the abundance of the sponge Geodia cydonium, the molluscs Pecten jacobaeus, Atrina fragilis, Neopycnodonte cochlear, and the group of holothurians, have declined. From fishers' perceptions, only the bryozoan Amathia semiconvoluta has increased. Local ecological knowledge can provide important information on environmental change and can highlight species and ecosystems at risk when conventional scientific data are scarce or absent. This approach can be expanded to other regions of the Adriatic and broader Mediterranean Sea to reconstruct change of this heavily exploited marine region.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Local Ecological Knowledge Indicates Temporal Trends of Benthic Invertebrates Species of the Adriatic Sea

et al. 2017

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“…Other ecosystem models were tested in the Adriatic Sea, particularly whole-ofecosystem models constructed to evaluate fisheries impacts and they do not portray a hopeful future for the Adriatic Sea, which has been reported as having possibly been subject to ecosystem overfishing in the past 30 years (Coll et al, 2007;Libralato et al, 2008;Coll et al, 2010). The importance of appropriate management of the Pomo/Jabuka Pit area is also highlighted (central Adriatic; Fouzai et al, 2012), especially in view of this area's status as a nursery ground for European hake (Županović and Jardas, 1986;Druon et al, 2015), one of the most important demersal species of the Adriatic Sea.…”

Section: Discussionmentioning

confidence: 99%

An Ecosystem Model of Intermediate Complexity to test management options for fisheries: A case study

Angelini

Hillary

Morello

et al. 2016

Ecological Modelling

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“…Those who did simulate management scenarios generally used spatially explicit tools and approaches such as Ecospace (Fouzai et al, 2012), Zonation (Moilanen, 2013;Winiarski et al, 2014), or a combination of GIS and BN models to allow for a non-static assessment of cause-effect pathways.…”

Section: Discussionmentioning

confidence: 99%

Quantitative environmental risk assessments in the context of marine spatial management: current approaches and some perspectives

Stelzenmüller¹,

Fock²,

Gimpel³

et al. 2014

ICES Journal of Marine Science

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Marine spatial planning (MSP) requires spatially explicit environmental risk assessment (ERA) frameworks with quantitative or probabilistic measures of risk, enabling an evaluation of spatial management scenarios. ERAs comprise the steps of risk identification, risk analysis, and risk evaluation. A review of ERAs in in the context of spatial management revealed a synonymous use of the concepts of risk, vulnerability and impact, a need to account for uncertainty and a lack of a clear link between risk analysis and risk evaluation. In a case study, we addressed some of the identified gaps and predicted the risk of changing the current state of benthic disturbance by bottom trawling due to future MSP measures in the German EEZ of the North Sea. We used a quantitative, dynamic, and spatially explicit approach where we combined a Bayesian belief network with GIS to showcase the steps of risk characterization, risk analysis, and risk evaluation. We distinguished 10 benthic communities and 6 international fishing fleets. The risk analysis produced spatially explicit estimates of benthic disturbance, which was computed as a ratio between relative local mortality by benthic trawling and the recovery potential after a trawl event. Results showed great differences in spatial patterns of benthic disturbance when accounting for different environmental impacts of the respective fleets. To illustrate a risk evaluation process, we simulated a spatial shift of the international effort of two beam trawl fleets, which are affected the most by future offshore wind development. The Bayesian belief network (BN) model was able to predict the proportion of the area where benthic disturbance likely increases. In conclusion, MSP processes should embed ERA frameworks which allow for the integration of multiple risk assessments and the quantification of related risks as well as uncertainties at a common spatial scale.

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Fishing management scenarios to rebuild exploited resources and ecosystems of the Northern-Central Adriatic (Mediterranean Sea)

Cited by 56 publications

References 54 publications

Local Ecological Knowledge Indicates Temporal Trends of Benthic Invertebrates Species of the Adriatic Sea

Local Ecological Knowledge Indicates Temporal Trends of Benthic Invertebrates Species of the Adriatic Sea

An Ecosystem Model of Intermediate Complexity to test management options for fisheries: A case study

Quantitative environmental risk assessments in the context of marine spatial management: current approaches and some perspectives

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