Effort reduction and the large fish indicator: spatial trends reveal positive impacts of recent European fleet reduction schemes

Engelhard, Georg H.; Lynam, Christopher P.; García‐Carreras, Bernardo; Dolder, Paul J.; Mackinson, Steven

doi:10.1017/s0376892915000077

Cited by 46 publications

(57 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Total sandeel landings in 2013 were 529,141 tonnes (15 % of total landings), Norway pout 1990-1995 (left) and 2003-2012 (right). Light to dark shading indicates the number of hours fishing in each ICES rectangle (redrawn from Engelhard et al 2015) landings were 155,752 tonnes (4 %) and blue whiting 17,645 tonnes (0.5 %). All of these short-lived industrial species are thought to be heavily influenced by climatic variability (e.g.…”

Section: Overview Of North Sea Fisheriesmentioning

confidence: 99%

Socio-economic Impacts—Fisheries

Pinnegar

Engelhard

Jones

et al. 2016

North Sea Region Climate Change Assessment

Self Cite

View full text Add to dashboard Cite

Fishers and scientists have known for over 100 years that the status of fish stocks can be greatly influenced by prevailing climatic conditions. Based on historical sea surface temperature data, the North Sea has been identified as one of 20 'hot spots' of climate change globally and projections for the next 100 years suggest that the region will continue to warm. The consequences of this rapid temperature rise are already being seen in shifts in species distribution and variability in stock recruitment. This chapter reviews current evidence for climate change effects on fisheries in the North Sea-one of the most important fishing grounds in the world-as well as available projections for North Sea fisheries in the future. Discussion focuses on biological, operational and wider market concerns, as well as on possible economic consequences. It is clear that fish communities and the fisheries that target them will be very different in 50 or 100 years' time and that management and governance will need to adapt accordingly. IntroductionThe North Sea remains one of the world's most important fishing grounds. In 2013, around 3.5 million tonnes of fish and shellfish were taken from the region (2.6 million tonnes by EU countries), approximately 55 % of the total for EU countries as a whole. European fisheries are very diverse, ranging from highly industrialised distant-water fisheries to small-scale artisanal fisheries that typically operate near the coast. EU citizens consume large quantities of seafood each year (currently around 23.3 kg on average per person), and rely on fisheries for health and well-being, as well as for supporting more than 120,000 jobs directly and a further 115,000 in fish processing (STECF 2013). There has been

show abstract

Section: Overview Of North Sea Fisheriesmentioning

confidence: 99%

Socio-economic Impacts—Fisheries

Pinnegar

Engelhard

Jones

et al. 2016

North Sea Region Climate Change Assessment

Self Cite

View full text Add to dashboard Cite

show abstract

“…Seabed depth was obtained from the General Bathymetric Chart of the Oceans (GEBCO, www.gebco.ne t). This assumption is supported by an overall consistency in the spatial distribution of beam trawl effort between the early 1990s and the mid-2000s (Engelhard et al 2015), despite a reduction in the overall fishing effort caused by a fleet reduction scheme initiated by the European Commission in the late 1990s (Villasante 2010). For each grid cell, the sediment categories were assessed as a coverage proportion, with the proportion of all categories in a grid cell summing up to one.…”

Section: Environmental Data and Anthropogenic Pressuresmentioning

confidence: 90%

“…Black arrows indicate a feeding link from one compartment to the other, while half-circle arrows represent intra-guild predation. In addition, recent changes in climate have impacted the distribution of multiple organisms in the North Sea (Beaugrand 2004, as well as the trait composition of their communities (Engelhard et al 2015). species and influence the composition and dynamics of different pelagic and benthic communities (Beaugrand et al 2001, Reiss et al 2010, Frelat et al 2017.…”

Section: Study Areamentioning

confidence: 99%

Spatial distribution of life‐history traits and their response to environmental gradients across multiple marine taxa

et al. 2018

View full text Add to dashboard Cite

Trait-based approaches enable comparison of community composition across multiple organism groups. Yet, little is known about the degree to which empirical trait responses found for one taxonomic group can be generalized across organisms. In this study, we investigated the spatial variability of marine community-weighted mean traits and compared their environmental responses across multiple taxa and habitats, including pelagic zooplankton (copepods), demersal fish, and benthic infaunal invertebrates. We used extensive, spatially explicit datasets collected from scientific surveys in the North Sea and examined community composition of these groups using a trait-based approach. In order to cover the key biological characteristics of an organism, we considered three life-history traits (adult size, offspring size, and fecundity) and taxon-specific feeding traits. While many of the traits co-varied in space and notably demonstrated a south-north gradient, none of the traits showed a consistent spatial distribution across all groups. However, traits are often correlated as a result of trade-offs. When studying spatial patterns of multiple traits variability in fish and copepods, we showed a high spatial correlation. This also applied to a lesser extent to fish and benthic infauna, whereas no correlation was found between benthic infauna and copepods. The result suggested a decoupling in the community traits between strictly benthic and strictly pelagic species. The strongest drivers of spatial variability for many community traits are the gradients in temperature seasonality, primary productivity, fishing effort, and depth. Spatial variability in benthic traits also co-varied with descriptors of the seabed habitat. Overall, results showed that trait responses to environmental gradients cannot be generalized across organism groups, pointing toward potential complex responses of multi-taxa communities to environmental changes and highlighting the need for cross-habitat multi-trait analyses to foresee how environmental change will affect community structure and biodiversity at large.

show abstract

“…An ecosystem-based approach is, therefore, needed, where an improvement of the environmental status requires a combination of measures to control the whole suite of pressures introduced by the full range of human activities that impact the marine ecosystem (Knights et al, 2013). The availability of state indicators capable of capturing signal from an identified pressure(s) can provide direct statistical evidence for the relationship between the activity (e.g., trawling effort, which can be managed) that induces the pressure (e.g., fish removal) and an indicator response (e.g., "Large Fish Indicator, " Engelhard et al, 2015).…”

Section: Capability To Address Pressuresmentioning

confidence: 99%

A Catalogue of Marine Biodiversity Indicators

et al. 2016

Self Cite

View full text Add to dashboard Cite

A Catalogue of Marine Biodiversity Indicators was developed with the aim of providing the basis for assessing the environmental status of the marine ecosystems. Useful for the implementation of the Marine Strategy Framework Directive (MSFD), this catalogue allows the navigation of a database of indicators mostly related to biological diversity, non-indigenous species, food webs, and seafloor integrity. Over 600 indicators were compiled, which were developed and used in the framework of different initiatives (e.g., EU policies, research projects) and in national and international contexts (e.g., Regional Seas Conventions, and assessments in non-European seas). The catalogue reflects the current scientific capability to address environmental assessment needs by providing a broad coverage of the most relevant indicators for marine biodiversity and ecosystem integrity. The available indicators are reviewed according to their typology, data requirements, development status, geographical coverage, relevance to habitats or biodiversity components, and related human pressures. Through this comprehensive overview, we discuss the potential of the current set of indicators in a wide range of contexts, from large-scale to local environmental programs, and we also address shortcomings in light of current needs. Developed by the DEVOTES Project, the catalogue is freely available through the DEVOTool software application, which provides browsing and query options for the associated metadata. The tool allows extraction of ranked indicator lists best fulfilling selected criteria, enabling users to search for suitable indicators to address a particular biodiversity component, ecosystem feature, habitat, or pressure in a marine area of interest. This tool is useful for EU Member States, Teixeira et al. Catalogue of Marine Biodiversity IndicatorsRegional Sea Conventions, the European Commission, non-governmental organizations, managers, scientists, and any person interested in marine environmental assessment. It allows users to build, complement or adjust monitoring programs and has the potential to improve comparability and foster transfer of knowledge across marine regions.

show abstract

Effort reduction and the large fish indicator: spatial trends reveal positive impacts of recent European fleet reduction schemes

Cited by 46 publications

References 38 publications

Socio-economic Impacts—Fisheries

Socio-economic Impacts—Fisheries

Spatial distribution of life‐history traits and their response to environmental gradients across multiple marine taxa

A Catalogue of Marine Biodiversity Indicators

Contact Info

Product

Resources

About