Results on main elasmobranch species from 2001 to 2021 Porcupine Bank (NE Atlantic) bottom trawl surveys
This working document presents the results of the most significant elasmobranch species caught on the Porcupine Spanish Groundfish Survey (SP-PORC-Q3) in 2021. Biomass and abundance index, distribution and length frequency information is presented for Galeus melastomus (blackmouth catshark), Deania...
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Centro Oceanográfico de Cádiz
2022
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ftieo:oai:repositorio.ieo.es:10508/16036 2023-05-15T15:56:10+02:00 Results on main elasmobranch species from 2001 to 2021 Porcupine Bank (NE Atlantic) bottom trawl surveys Fernández-Zapico, O. (Olaya) Blanco, M. (Marian) Ruiz-Pico, S. (Susana) Velasco, F. (Francisco) Rodríguez-Cabello, C. (Cristina) Baldó, F. (Francisco) Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic 2022 http://hdl.handle.net/10508/16036 eng eng Centro Oceanográfico de Cádiz http://hdl.handle.net/10508/16036 ICES Working Group on Elasmobranch Fishes (WGEF). (14/06/2022 - 23/06/2022. Lisbon (Portugal)). 2022. Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND fish surveys species time series length frequency workingPaper 2022 ftieo 2022-10-04T23:46:44Z This working document presents the results of the most significant elasmobranch species caught on the Porcupine Spanish Groundfish Survey (SP-PORC-Q3) in 2021. Biomass and abundance index, distribution and length frequency information is presented for Galeus melastomus (blackmouth catshark), Deania calcea (birdbeak dogfish), Deania profundorum (arrowhead dogfish), Scymnodon ringens (knifetooth dogfish), Scyliorhinus canicula (lesser spotted dogfish), Etmopterus spinax (velvet belly lantern shark), Dalatias licha (kitefin shark), Hexanchus griseus (bluntnose sixgill shark), Dipturus nidarosiensis (Norwegian skate), Dipturus batis (common skate), Dipturus intermedius (common skate), Leucoraja circularis (sandy ray) and Leucoraja naevus (cuckoo ray), Squalus acanthias (picked dogfish), Raja clavata (thornback ray) and Raja montagui (spotted ray). In 2021 the biomass of G. melastomus, D. calcea, S. ringens, D. licha, S. acanthias, L. naevus, L. circularis and D. batis increased, whereas it decreased for D. nidarosiensis, H. griseus, S. canicula and E. spinax. Signs of recruitment were found for G. melastomus, D. calcea, S. ringens, D. licha, D. nidarosiensis and D. batis. Only a few specimens of R. clavata, R. montagui, Centroscymnus coelolepis, Oxynotus paradoxus, Centroscymnus crepidater, Apristurus laurussonii, Galeus murinus and Centrophorus squamosus were caught. The species Centroscyllium fabricii and Neoraja caerulea were captured for the first time in the survey. The species D. profundorum and D. intermedius, with regular presence in the historical series, were not found in 2021 survey. Report Common skate Dipturus batis Dipturus nidarosiensis North Atlantic Norwegian skate Picked dogfish Squalus acanthias Instituto Español de Oceanografía: e-IEO Porcupine Bank ENVELOPE(-13.667,-13.667,53.333,53.333) Canicula ENVELOPE(-58.515,-58.515,-63.717,-63.717) |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
topic |
fish surveys species time series length frequency |
spellingShingle |
fish surveys species time series length frequency Fernández-Zapico, O. (Olaya) Blanco, M. (Marian) Ruiz-Pico, S. (Susana) Velasco, F. (Francisco) Rodríguez-Cabello, C. (Cristina) Baldó, F. (Francisco) Results on main elasmobranch species from 2001 to 2021 Porcupine Bank (NE Atlantic) bottom trawl surveys |
topic_facet |
fish surveys species time series length frequency |
description |
This working document presents the results of the most significant elasmobranch species caught on the Porcupine Spanish Groundfish Survey (SP-PORC-Q3) in 2021. Biomass and abundance index, distribution and length frequency information is presented for Galeus melastomus (blackmouth catshark), Deania calcea (birdbeak dogfish), Deania profundorum (arrowhead dogfish), Scymnodon ringens (knifetooth dogfish), Scyliorhinus canicula (lesser spotted dogfish), Etmopterus spinax (velvet belly lantern shark), Dalatias licha (kitefin shark), Hexanchus griseus (bluntnose sixgill shark), Dipturus nidarosiensis (Norwegian skate), Dipturus batis (common skate), Dipturus intermedius (common skate), Leucoraja circularis (sandy ray) and Leucoraja naevus (cuckoo ray), Squalus acanthias (picked dogfish), Raja clavata (thornback ray) and Raja montagui (spotted ray). In 2021 the biomass of G. melastomus, D. calcea, S. ringens, D. licha, S. acanthias, L. naevus, L. circularis and D. batis increased, whereas it decreased for D. nidarosiensis, H. griseus, S. canicula and E. spinax. Signs of recruitment were found for G. melastomus, D. calcea, S. ringens, D. licha, D. nidarosiensis and D. batis. Only a few specimens of R. clavata, R. montagui, Centroscymnus coelolepis, Oxynotus paradoxus, Centroscymnus crepidater, Apristurus laurussonii, Galeus murinus and Centrophorus squamosus were caught. The species Centroscyllium fabricii and Neoraja caerulea were captured for the first time in the survey. The species D. profundorum and D. intermedius, with regular presence in the historical series, were not found in 2021 survey. |
format |
Report |
author |
Fernández-Zapico, O. (Olaya) Blanco, M. (Marian) Ruiz-Pico, S. (Susana) Velasco, F. (Francisco) Rodríguez-Cabello, C. (Cristina) Baldó, F. (Francisco) |
author_facet |
Fernández-Zapico, O. (Olaya) Blanco, M. (Marian) Ruiz-Pico, S. (Susana) Velasco, F. (Francisco) Rodríguez-Cabello, C. (Cristina) Baldó, F. (Francisco) |
author_sort |
Fernández-Zapico, O. (Olaya) |
title |
Results on main elasmobranch species from 2001 to 2021 Porcupine Bank (NE Atlantic) bottom trawl surveys |
title_short |
Results on main elasmobranch species from 2001 to 2021 Porcupine Bank (NE Atlantic) bottom trawl surveys |
title_full |
Results on main elasmobranch species from 2001 to 2021 Porcupine Bank (NE Atlantic) bottom trawl surveys |
title_fullStr |
Results on main elasmobranch species from 2001 to 2021 Porcupine Bank (NE Atlantic) bottom trawl surveys |
title_full_unstemmed |
Results on main elasmobranch species from 2001 to 2021 Porcupine Bank (NE Atlantic) bottom trawl surveys |
title_sort |
results on main elasmobranch species from 2001 to 2021 porcupine bank (ne atlantic) bottom trawl surveys |
publisher |
Centro Oceanográfico de Cádiz |
publishDate |
2022 |
url |
http://hdl.handle.net/10508/16036 |
op_coverage |
Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic |
long_lat |
ENVELOPE(-13.667,-13.667,53.333,53.333) ENVELOPE(-58.515,-58.515,-63.717,-63.717) |
geographic |
Porcupine Bank Canicula |
geographic_facet |
Porcupine Bank Canicula |
genre |
Common skate Dipturus batis Dipturus nidarosiensis North Atlantic Norwegian skate Picked dogfish Squalus acanthias |
genre_facet |
Common skate Dipturus batis Dipturus nidarosiensis North Atlantic Norwegian skate Picked dogfish Squalus acanthias |
op_relation |
http://hdl.handle.net/10508/16036 ICES Working Group on Elasmobranch Fishes (WGEF). (14/06/2022 - 23/06/2022. Lisbon (Portugal)). 2022. |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766391640264540160 |