Synchronous combined effects of fishing and climate within a demersal community

Quetglas, Antoni; Ordines, Francesc; Hidalgo, Manuel; Monserrat, Sebastià; Ruiz, Susana; Amores, Ángel; Moranta, Joan; Massutí, Enric

doi:10.1093/icesjms/fss181

Cited by 42 publications

(41 citation statements)

References 43 publications

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“…As a result of fishing, some target stocks shifted from an early period of under-exploitation to overexploitation during the late 1970s or early 1980s (Quetglas et al, 2013). This change altered the population resilience of those stocks and brought about an increase in the sensitivity of its dynamics to the climate variability.…”

Section: Discussionmentioning

confidence: 99%

“…Whereas, data from the BTF was available from previous studies (e.g., Ordines et al, 2006;Palmer et al, 2009;Quetglas et al, 2013), fishing tactics (a combination of target species, gear, and fishing location at a given time of the year; Pelletier and Ferraris, 2000), and fishery statistics from the SSF were determined within Myfish (for methodology, see Quetglas et al, 2016).…”

Section: Fisheries Descriptionmentioning

confidence: 99%

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Harvest Strategies for an Ecosystem Approach to Fisheries Management in Western Mediterranean Demersal Fisheries

et al. 2017

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The serious overfishing of most Mediterranean stocks demands urgent reforms of the management measures aiming to guarantee the sustainability of resources, notably when compared with the improvement observed in other European areas. The new EU Common Fisheries Policy (CFP) constitutes an excellent opportunity to introduce the changes needed for such a reform. According to this CFP, all European fish stocks should be brought to a state where they can produce at MSY by 2020 at the latest. The CFP also establishes that the objective of sustainable exploitation should be achieved through multiannual plans (MAPs) adopted in consultation with relevant stakeholders having fisheries management interests such as fishermen, non-governmental organizations, and policy makers. Together with the MSY and MAP approaches, the new CFP contains several other measures, directed to guarantee the ecological and socio-economic sustainability of fisheries by means of the implementation of the ecosystem approach to fisheries management (EAFM). With this new perspective, the CFP wants to avoid past failures of fisheries management based on monospecific approaches. This study is a first step toward the application of the EAFM in the Balearic Islands by means of the development of a harvest strategy with defined objectives, targets, limits, and clear management control rules aimed at optimizing socioeconomic and ecological objectives in the framework of the new CFP. Different management scenarios designed to achieve that goal were modeled for the main demersal commercial fisheries from the study area, the bottom trawl, and small-scale fisheries. The work begins with a general description of those fisheries, their main fishing grounds, and assessments of the exploitation status of the main target stocks in order to establish the current situation. Secondly, alternative management scenarios to maximize catch and profits while considering societal objectives were evaluated by means of bio-economic models. Thirdly, management measures were provided based on the previous modeling and discussions with stakeholders. Finally, a monitoring scheme was outlined to assess the progresses of the proposed management actions. This work is intended to be a working example of co-management (fishers, policy-makers, and scientists) in the Mediterranean in the framework of the new EU CFP.

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Section: Discussionmentioning

confidence: 99%

Section: Fisheries Descriptionmentioning

confidence: 99%

Harvest Strategies for an Ecosystem Approach to Fisheries Management in Western Mediterranean Demersal Fisheries

et al. 2017

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“…This implies that biocapacity to satisfy those biomass requirements was insufficient, rising from 78.89% of Balearics primary production in 1990 to a peak of 182.5% in 2007 ( Figure 5 and Table 4). This large footprint (satisfied mainly via imports) explains why Balearics fisheries are less exploited than other Mediterranean regions (Quetglas et al 2013). High tourism revenues compensate for a trade deficit and fish imports (Murray 2012).…”

Section: Primary Production Required To Sustain Fish Catches (1940-20mentioning

confidence: 99%

The fishing footprint of a tourism-based economy: displacing seafood consumption from local to distant waters in the Balearic Islands

Murray

2015

Journal of Political Ecology

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Since the Balearics are one of the key tourism destinations in Europe, the tourism industry has entailed a radical transformation of coastal life on the islands. In the 1960s and 1970s, fish captures increased enormously due to the expansion of consumption derived from tourism, and through technological improvements. There has been a change in target species from cheap fish consumed by local people towards expensive species consumed by tourists. However, since the 1980s a combination of factors including the adoption of the EU Common Fisheries Policy, the globalization of trade, and overfishing of some target species has led to a drastic fall in fishing sector jobs, catch reductions, and an increase in cheap imports. This article analyses the transformation of Balearic fisheries combining ecological economics (EE) and political ecology (PE) approaches. Material flow accounting (MFA) and the ecological footprint (EF) are applied in order to conceptualize the biophysical dimension of fisheries in relation to the historical dynamics of capital in the archipelago. Between 1940 and 2012, total fish catches doubled the official landings, while nonreported or hidden catches were underestimated. In the neoliberal period , fish catches decreased and seafood consumption was satisfied mainly through imports, five times the local captures. Thus, the metabolism of fish consumption in the Balearics illustrates the logics of capital and its metabolism in advanced capitalist regions, characterized by the displacement of socio-ecological conflicts to distant waters. Keywords: Balearic Islands; tourism; fisheries; material flow accounting; ecological footprint. RésuméDepuis les Baléares sont l'une des principales destinations touristiques en Europe, l'industrie du tourisme a entraîné une transformation radicale de la vie sur les îles côtières. Dans les années 1960 et 1970, les captures de poissons a énormément augmenté en raison de l'expansion de la consommation d'un secteur touristique en plein essor, et les améliorations technologiques. Il y a eu un changement dans les espèces cibles de poissons pas cher consommée par les populations locales à l'égard des espèces coûteuses consommés par les touristes. Cependant, depuis les années 1980, il y a eu une chute drastique dans les emplois du secteur de la pêche, une réduction des captures, et une augmentation des importations à bas prix. Ceci a été causé par l'adoption de la politique commune de la pêche de l'UE, la mondialisation des échanges, et la surpêche de certaines espèces cibles. Cet article analyse la transformation de la pêche Baléares en combinant une approche de l'économie écologique (EE) et de l'écologie politique (PE). La comptabilité des flux de matières (AMF) et l'empreinte écologique sont appliqués afin de conceptualiser la dimension biophysique de la pêche dans le cadre de la dynamique historique du capital de l'archipel. Entre 1940 et 2012, les captures officielles de poisson a doublé, tandis que les captures non déclarées ou cachées ont été sous-estimés. Da...

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“…Therefore, Octopus abundance is linked to recruitment success which is highly dependent on environmental conditions (Sonderblohm, Pereira & Erzini, 2014;Boyle & Rodhouse, 2005) and, in some cases, to the combined effect of fishing and environmental variability (Quetglas et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Martinez¹,

Moya²,

Gonzalez³

et al. 2018

Turk. J. Fish. Aquat. Sci.

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Octopus vulgaris is a short living species with environmental adaptive plasticity and high fecundity. Its abundance can experience large fluctuations highly dependent on the recruitment success. Both, these abundance fluctuations and the reproductive season seem to be influenced by the variability of environmental conditions which can determine the beginning and the length of the spawning period, the existence of one or several spawning peaks and the length of both the embryonic and planktonic phases. Beside this inter annual variability, the availability of long time series of octopus landings and biological data can allow us to define a mean or average length for the different phases of the octopus life cycle. Time series for landings, biological and environmental data in the Alboran Sea are analyzed in the present work. Sexual maturity data are used to determine the average spawning season. The ratio of mature females in coastal waters and GSI indicate that spawning occurs during June, July and August. Temperature time series in the Alboran Sea are used to calculate the length of the embryonic and planktonic phases for O.vulgaris. According to our results, individuals spawned during late spring and summer would settle during September, October and November, incorporating to the fisheries some weeks later. These results from our simple model agree with landings time series which show maximum landings from October to January or February.

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Synchronous combined effects of fishing and climate within a demersal community

Cited by 42 publications

References 43 publications

Harvest Strategies for an Ecosystem Approach to Fisheries Management in Western Mediterranean Demersal Fisheries

Harvest Strategies for an Ecosystem Approach to Fisheries Management in Western Mediterranean Demersal Fisheries

The fishing footprint of a tourism-based economy: displacing seafood consumption from local to distant waters in the Balearic Islands

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