Evidence of difference in landings and discards patterns in the English Channel and North Sea Rajidae complex fishery

Amelot, Morgane; Batsleer, Jurgen; Foucher, Éric; Girardin, Raphaël; Marchal, Paul; Poos, J.J.; Sys, Klaas

doi:10.1016/j.fishres.2021.106028

Cited by 8 publications

(8 citation statements)

References 43 publications

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“…We depicted the continuous northward shift pattern of S. canicula previously stated in several studies (Ellis et al., 2004; Rindorf et al., 2020; Sguotti et al., 2016; Townhill et al., 2023), coupled with a shift in depth. Before population depletion in the 1990s (Amelot et al., 2021), R. clavata was historically widespread around the British Isles (Ellis et al., 2004) and across the southern North Sea (Sguotti et al., 2016). After the 2000s, abundance increased in the North Sea (Rindorf et al., 2020) and in the eastern English Channel (Elliott, Bearup, et al., 2020), particularly with the fisheries ban on Undulate Ray ( Raja undulata ; 2009–2015), since R. undulata has a similar niche as R. clavata (Elliott, Bearup, et al., 2020; Elliott, Carpentier, et al., 2020).…”

Section: Discussionmentioning

confidence: 99%

“…Within more coastal areas, we detected increased habitat suitability of R. montagui off the Humber Estuary and Start Bay but not throughout the Greater North Sea (Ellis et al., 2004; Sguotti et al., 2016). It could be hypothesized that although remaining adults could currently withstand the environmental conditions faced in estuaries (Ashcroft, 2010), eggs and juveniles may not have the same ability (Di Santo, 2015; Elliott, Bearup, et al., 2020; Musa et al., 2020; Rosa et al., 2014), thereby impeding the recolonization process that has been underway since the 1990s (Amelot et al., 2021). This also highlights the importance of long‐term monitoring of spawning and nursery sites (Kinney & Simpfendorfer, 2009; McLean et al., 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Fishing activity is also one of the main concerns in the Northeast Atlantic (Pimiento et al, 2023;Walker et al, 2019). In the Greater North Sea, the three main landed Rajidae species are R. clavata, L. naevus, and R. montagui (Amelot et al, 2021); hence, we cannot neglect an effect of fishing that we could not test in this study given the temporal range and spatial resolution of the fishing data available. Furthermore, our study did not test the possible degradation of essential habitats due to human pressures (e.g., the effect of bottom trawling on the productivity of marine fish; Collie et al, 2017).…”

Section: Changes In Species Traits Compositionmentioning

confidence: 99%

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Northeast Atlantic elasmobranch community on the move: Functional reorganization in response to climate change

Coulon,

Elliott,

Teichert

et al. 2024

Global Change Biology

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While spatial distribution shifts have been documented in many marine fishes under global change, the responses of elasmobranchs have rarely been studied, which may have led to an underestimation of their potential additional threats. Given their irreplaceable role in ecosystems and their high extinction risk, we used a 24‐year time series (1997–2020) of scientific bottom trawl surveys to examine the effects of climate change on the spatial distribution of nine elasmobranch species within Northeast Atlantic waters. Using a hierarchical modeling of species communities, belonging to the joint species distribution models, we found that suitable habitats for four species increased on average by a factor of 1.6 and, for six species, shifted north‐eastwards and/or to deeper waters over the past two decades. By integrating species traits, we showed changes in habitat suitability led to changes in the elasmobranchs trait composition. Moreover, communities shifted to deeper waters and their mean trophic level decreased. We also note an increase in the mean community size at maturity concurrent with a decrease in fecundity. Because skates and sharks are functionally unique and dangerously vulnerable to both climate change and fishing, we advocate for urgent considerations of species traits in management measures. Their use would make it better to identify species whose loss could have irreversible impacts in face of the myriad of anthropogenic threats.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Changes In Species Traits Compositionmentioning

confidence: 99%

See 1 more Smart Citation

Northeast Atlantic elasmobranch community on the move: Functional reorganization in response to climate change

Coulon,

Elliott,

Teichert

et al. 2024

Global Change Biology

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show abstract

“…Despite the high intrinsic sensitivity of many species, sustainable shark and ray fisheries are possible if assessment and management is adequate. There are 39 sustainably fished populations of 33 species of sharks and rays around the globe (Simpfendorfer & Dulvy, 2017) and signs of recovery in US and EU managed populations (Amelot et al, 2021; Peterson et al, 2017). Sustainable shark and ray fisheries all have common characteristics that distinguish them from unsustainable shark and ray fisheries.…”

Section: Introductionmentioning

confidence: 99%

M-Risk: A framework for assessing global fisheries management efficacy of sharks, rays, and chimaeras

Sherman

Sant

Simpfendorfer

et al. 2022

Preprint

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Fisheries management is essential to guarantee sustainable capture of target species and avoid undesirable declines of incidentally captured species. A key challenge is halting and reversing declines of shark and ray species, and specifically assessing the degree to which management is sufficient to avoid declines in relatively data-poor fisheries. While ecological risk analyses focus on intrinsic 'productivity' and extrinsic 'susceptibility', one would ideally consider the influence of 'fisheries management'. Currently, there is no single management evaluation that can be applied to a combination of fishery types at the scale of individual country or Regional Fisheries Management Organisations (RFMOs). Here, we outline a management risk (M-Risk) framework for sharks, rays, and chimaeras used to evaluate species' risk to overfishing resulting from ineffective management. We illustrate our approach with application to one country (Ecuador) and RFMO (Inter-American Tropical Tuna Commission) and illustrate the variation in scores among species. We found that while both management units assessed had similar overall scores, the scores for individual attributes varied. Ecuador scored higher in reporting-related attributes, while the IATTC scored higher in attributes related to data collection and use. We evaluated whether management of individual species was sufficient for their relative sensitivity by combining the management risk score for each species with their intrinsic sensitivity to determine a final M-Risk score. This framework can be applied to determine which species face the greatest risk of overfishing and be used by fisheries managers to identify effective management policies by replicating regulations from countries with lower risk scores.

show abstract

“…Despite the high intrinsic sensitivity of many species, sustainable shark and ray fisheries are possible if assessment and management are adequate. There are 39 sustainably fished populations of 33 species of sharks and rays around the globe (Simpfendorfer & Dulvy, 2017) and signs of recovery in US‐ and EU‐managed populations (Amelot et al, 2021; Peterson et al, 2017). Sustainable shark and ray fisheries all have common characteristics that distinguish them from unsustainable shark and ray fisheries.…”

Section: Introductionmentioning

confidence: 99%

M‐Risk: A framework for assessing global fisheries management efficacy of sharks, rays and chimaeras

et al. 2022

View full text Add to dashboard Cite

Fisheries management is essential to guarantee sustainable capture of target species and avoid undesirable declines of incidentally captured species. A key challenge is halting and reversing declines of shark and ray species, and specifically assessing the degree to which management is sufficient to avoid declines in relatively data‐poor fisheries. While ecological risk analyses focus on intrinsic ‘productivity’ and extrinsic ‘susceptibility’, one would ideally consider the influence of ‘fisheries management’. Currently, there is no single management evaluation that can be applied to a combination of fishery types at the scale of individual country or Regional Fisheries Management Organizations (RFMOs). Here, we outline a management‐risk (M‐Risk) framework for sharks, rays and chimaeras used to evaluate species' risk of overfishing resulting from ineffective management. We illustrate our approach with application to one country (Ecuador) and RFMO (Inter‐American Tropical Tuna Commission) and illustrate the variation in scores among species. We found that while both management units assessed had similar overall scores, the scores for individual attributes varied. Ecuador scored higher in reporting‐related attributes, while the IATTC scored higher in attributes related to data collection and use. We evaluated whether the management of individual species was sufficient for their relative sensitivity by combining the management‐risk score for each species with their intrinsic sensitivity to determine a final M‐Risk score. This framework can be applied to determine which species face the greatest risk of overfishing and be used by fisheries managers to identify effective management policies by replicating regulations from countries with lower risk scores.

show abstract

Evidence of difference in landings and discards patterns in the English Channel and North Sea Rajidae complex fishery

Cited by 8 publications

References 43 publications

Northeast Atlantic elasmobranch community on the move: Functional reorganization in response to climate change

Northeast Atlantic elasmobranch community on the move: Functional reorganization in response to climate change

M-Risk: A framework for assessing global fisheries management efficacy of sharks, rays, and chimaeras

M‐Risk: A framework for assessing global fisheries management efficacy of sharks, rays and chimaeras

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