Identifying core areas for mobile species in space and time: A case study of the demersal fish community in the North Sea

Probst, Wolfgang; Stelzenmüller, Vanessa; Rambo, Henrike; Moriarty, Meadhbh; Greenstreet, Simon P. R.

doi:10.1016/j.biocon.2020.108946

Cited by 10 publications

(23 citation statements)

References 47 publications

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“…Indeed, whilst there have been numerous biological investigations of A. lupus in the waters off northern Russia (Pavlov & Novikov, 1993), Iceland (e.g., Gunnarsson et al, 2019;J onsson, 1982) and from the north-west Atlantic (e.g., Nelson & Ross, 1992;Templeman, 1986), and other studies relating to aquaculture potential (e.g., Desjardins et al, 2007;Le François et al, 2002), there have been comparatively few biological studies of A. lupus in the North Sea (Liao & Lucas, 2000a, 2000b. Whilst trawl survey data can identify some important areas for A. lupus in the North Sea (e.g., Ellis, 2015;Probst et al, 2021; present study), these data are from trawlable grounds and more detailed descriptions of preferred and critical habitats in this area are lacking. Additionally, some life-history stages of A. lupus prefer harder substrates, which are not sampled effectively in most trawl surveys, to minimize gear damage.…”

Section: Further Researchmentioning

confidence: 99%

Decline in Atlantic wolffish Anarhichas lupus in the North Sea: Impacts of fishing pressure and climate change

Bluemel

Fischer

Kulka

et al. 2021

Journal of Fish Biology

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Anarhichas lupus is a boreo-Arctic species with biological characteristics often associated with vulnerability to overexploitation. Although not commercially targeted in the North Sea, A. lupus is a bycatch species in mixed demersal fisheries. Here we provide an overview of the status of A. lupus in the North Sea, as observed from commercial landings and fishery-independent trawl survey data. A. lupus was once common across much of the central and northern North Sea but, since the 1980s, have declined in abundance, demographic characteristics (reduced size) and geographical range, with the shallower and more southerly parts of its range most impacted. A. lupus is still relatively frequent in the northern North Sea, where fishing intensity, though decreasing, is high. Bycatch through fishing remains a potential threat and, considering the likely impacts of predicted climate change on cold-water species, risks of further regional depletion and/or range contraction remain. Whether or not A. lupus is able to re-establish viable populations in former habitat in UK coastal waters is unknown. Given the lack of data, the precautionary principle would suggest that manageable pressures be minimized where the species and its habitat are at risk of further impacts, and more regular assessments of population status be undertaken.

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Section: Further Researchmentioning

confidence: 99%

Decline in Atlantic wolffish Anarhichas lupus in the North Sea: Impacts of fishing pressure and climate change

Bluemel

Fischer

Kulka

et al. 2021

Journal of Fish Biology

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“…Few MPAs within European waters protect marine fish and instead focus on protecting seabed features with a few exceptions (e.g., protected seabirds and marine mammals). Therefore the only protection measure that exist for vulnerable marine fish is through the removal of targeted fishing (Dureuil et al, 2018; Probst et al, 2021; Stratoudakis et al, 2016). There is, however, increasing evidence that MPAs may have positive impacts on fish populations if appropriate management measures are implemented (Davies et al, 2021; Moland et al, 2013; Probst et al, 2021; Worm et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…Therefore the only protection measure that exist for vulnerable marine fish is through the removal of targeted fishing (Dureuil et al, 2018; Probst et al, 2021; Stratoudakis et al, 2016). There is, however, increasing evidence that MPAs may have positive impacts on fish populations if appropriate management measures are implemented (Davies et al, 2021; Moland et al, 2013; Probst et al, 2021; Worm et al, 2006). The value of protected areas for highly migratory species has been questioned, but there is evidence that MPAs may have positive impacts on migratory species (Pendoley et al, 2014; Takashina and Mougi, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…Finally, it has been well acknowledged that although a large impetus for the designation of MPAs has been undertaken in the last two decades (Probst et al, 2021; Worm et al, 2006). The implementation of management measures has been slow to put in place (Dureuil et al, 2018; Probst et al, 2021; Stratoudakis et al, 2016). Furthermore, little has been undertaken to protect diadromous fish within marine ecosystems (Dureuil et al, 2018; Probst et al, 2021; Stratoudakis et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…The implementation of management measures has been slow to put in place (Dureuil et al, 2018; Probst et al, 2021; Stratoudakis et al, 2016). Furthermore, little has been undertaken to protect diadromous fish within marine ecosystems (Dureuil et al, 2018; Probst et al, 2021; Stratoudakis et al, 2016). We highlight the value of Habitat Directive MPAs that have the jurisdiction to protect diadromous fish.…”

Section: Discussionmentioning

confidence: 99%

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Modelling the distribution of rare and data-poor diadromous fish at sea for protected area management

Elliott

Acou

Beaulaton³

et al. 2022

Preprint

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Anthropogenic pressures have resulted in declines in diadromous fish. Many diadromous fish which were commercially important are now threatened and protected. Little is known about their marine life history phases, and no observation-based Species Distribution Model exists for this group of species at sea. Yet, fisheries dependent and independent data could provide new insights to the distribution of diadromous fish at sea. We collated a database of 168 904 hauls from fisheries observer bycatch data and scientific fisheries surveys, from eastern Atlantic and Mediterranean waters. The distribution of eleven rare and data-poor diadromous fish (shads, lampreys, salmonids, the European eel, the thinlip mullet, smelt and the European flounder) were modelled. A Bayesian site occupancy model, which incorporates imperfect detection to account for repeat detections and non-detections, the non-random nature of fishing gear type and spatial autocorrelation was used. From the model outputs, we explored bycatch risk and the role of MPAs, required under the Marine Strategy Framework Directive and Habitat Directive and assessed. Diadromous fish were observed within relatively shallow coastal areas. Species specific gear bycatch trends were observed. Core distribution areas corresponded to their known water basin presence, indicating connectivity with their freshwater habitats. Numerous Habitat Directive Marine Protected Areas were found to be of relevance. Given the coastal distribution of these species, they are exposed to higher anthropogenic pressures from both terrestrial and marine environments. Risk of bycatch at sea for most species appears to be low. Nonetheless, for threatened individuals, even a small amount of bycatch may impact their populations, especially since miss-reporting is likely to be high. Differences in catchability between gears highlight potential benefits of limiting access of certain gears within protected areas to reduce bycatch.

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Framing future trajectories of human activities in the German North Sea to inform cumulative effects assessments and marine spatial planning

Stelzenmüller,

Rehren,

Örey

et al. 2024

Journal of Environmental Management

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Identifying core areas for mobile species in space and time: A case study of the demersal fish community in the North Sea

Cited by 10 publications

References 47 publications

Decline in Atlantic wolffish Anarhichas lupus in the North Sea: Impacts of fishing pressure and climate change

Decline in Atlantic wolffish Anarhichas lupus in the North Sea: Impacts of fishing pressure and climate change

Modelling the distribution of rare and data-poor diadromous fish at sea for protected area management

Framing future trajectories of human activities in the German North Sea to inform cumulative effects assessments and marine spatial planning

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