Balearic shearwater and northern gannet bycatch risk assessment in Portuguese Continental Waters

Araújo, Hélder; Correia-Rodrigues, Pedro; Debru, Philippe; Ferreira, Marisa; Vingada, José; Eira, Catarina

doi:10.1016/j.biocon.2022.109463

Cited by 3 publications

(3 citation statements)

References 52 publications

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“…For instance, Northern Gannet and Balearic Shearwater are known to be bycaught in Portuguese fisheries (e.g. Calado et al ., 2020; Oliveira et al ., 2020; Araújo et al ., 2022b). Also, the inter-annual changes in Razorbill abundance may be related to the mortality of adults and immatures in wintering areas caused by storms or massive events of bycatch (e.g.…”

Section: Discussionmentioning

confidence: 99%

Temporal Changes in Migratory Seabird Abundance on the Portuguese Coast Revealed by a Citizen Science Project

Fagundes,

Godinho,

Ramos

et al. 2024

Ardeola

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Section: Discussionmentioning

confidence: 99%

Temporal Changes in Migratory Seabird Abundance on the Portuguese Coast Revealed by a Citizen Science Project

Fagundes,

Godinho,

Ramos

et al. 2024

Ardeola

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“…However, there are important patches of European storm‐petrel core areas in this zone that are unprotected, mainly on the northern coast of Portugal. In addition, these key areas were not recognised in previous marine spatial plans, and consequently there is a lack of designation of MPAs in these regions (Araújo et al., 2017; Araújo, Correia‐Rodrigues, et al., 2022; Pereira et al., 2018). Furthermore, all Atlantic coast of Iberia is an important migratory flyway for seabird species breeding in northern Europe and moving to lower latitudes during the winter (Araújo, Rodrigues, et al., 2022; Arcos et al., 2009; Paris et al., 2021).…”

Section: Discussionmentioning

confidence: 99%

“…However, there are important patches of European storm-petrel core areas in this zone that are unprotected, mainly on the northern coast of Portugal. In addition, these key areas were not recognised in previous marine spatial plans, and consequently there is a lack of designation of MPAs in these regions (Araújo et al, 2017;Araújo, Correia-Rodrigues, et al, 2022;Pereira et al, 2018).…”

Section: Strategising Mpas For European Storm-petrel Conservationmentioning

confidence: 99%

Using long‐term data series to design adequate protected areas that ensure the conservation of inconspicuous small petrel species

De la Cruz,

Pereira,

Paiva

et al. 2023

Journal of Applied Ecology

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Marine protected areas (MPAs) are widely used tools for conservation and management. Their correct delimitation is challenging, especially when the target species are small, elusive and inconspicuous, as little data are generally available to adequately assess their distribution at sea. Therefore, currently designated MPAs may not effectively cover key areas for small seabirds, particularly during migration and wintering seasons. We used ensemble species distribution models (ESDMs) on a 15‐year time‐series data set of at‐sea census along the Atlantic Iberian arc to predict the potential distribution of the smallest European seabird, the European storm‐petrel (Hydrobates pelagicus), and compare it with official marine special protection areas (SPAs). Occurrence of European storm‐petrel was related to shifts in sea surface temperature, and to small distances from the coast over the continental shelf. Most relevant area for the species in the Atlantic Iberian arc was west‐central Portugal to north‐western coast of the Iberian Peninsula, with an additional key area in the Gulf of Cádiz. Both zones host significant SPAs, but they inadequately cover key areas for European storm‐petrels. Our findings support extending marine SPAs in the Atlantic Iberian arc to ensure their effective protection. The distribution of the species expands over the years, varying in both size and location. These changes might be attributed to dynamic oceanographic variables, such as sea surface temperature and biomass of micronekton, which seem to play a significant role in their foraging behaviour. Synthesis and applications. Our study highlights the importance of analysing long time series and ESDMs to design adequate protected areas, which ensure the conservation of small and highly mobile species such as storm petrels. Our results should be considered by decision‐makers to prioritise and update marine protected areas, while incorporating the dynamic nature of the ocean within an ecosystem‐based approach.

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Correlation between seabirds and fisheries varies by species at fine-scale pattern

Cruz

Rodríguez‐García

Cabrera-Castro

et al. 2022

ICES Journal of Marine Science

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Understanding how fisheries influence seabird distribution is critical in the development of sustainable fisheries management. Species distribution models were applied to analyse the influence of the fishing footprint, discards, and oceanographic factors on seabird attendance patterns to trawlers in the Gulf of Cádiz. More than 30 species of seabirds were attracted to trawlers, although only seven were registered with relatively high frequency and abundance. For these species, fishery footprint was a good predictor for the distribution of four out of seven (yellow-legged gull, lesser black-backed gull, northern gannet, and Cory's shearwater). Yellow-legged and lesser black-backed gull flocked in large numbers to trawlers, mostly in shallow areas where they were also attracted by purse seines. Northern gannets and Cory's shearwaters appeared with relatively high frequency and their distributions correlated with trawler effort and abundance of potential prey discards. Balearic shearwaters were attracted in low numbers and concentrated in shallow areas, where potential prey discards were also more abundant. For these three species, discards as surrogate of natural prey distribution were good predictors of trawler attendance. Our research revealed that, at a local scale, the degree of interaction of seabirds on fishing discards varies by species. Therefore, fine-scale studies are essential in identifying interactions between seabirds and fisheries, and thus assessing conservation issues such as bycatch or the consequences of discard bans.

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Balearic shearwater and northern gannet bycatch risk assessment in Portuguese Continental Waters

Cited by 3 publications

References 52 publications

Temporal Changes in Migratory Seabird Abundance on the Portuguese Coast Revealed by a Citizen Science Project

Temporal Changes in Migratory Seabird Abundance on the Portuguese Coast Revealed by a Citizen Science Project

Using long‐term data series to design adequate protected areas that ensure the conservation of inconspicuous small petrel species

Correlation between seabirds and fisheries varies by species at fine-scale pattern

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