Demersais survey in the Azores between 1996 and 2013

Gui Menezes

doi:10.14284/22

Demersais survey in the Azores between 1996 and 2013

Citation

Menezes, G.; Institute of Marine Research (IMAR - Azores), Portugal; Department of Oceanography and Fisheries, University of the Azores (DOP/UAC), Portugal; (2014): Demersais survey in the Azores between 1996 and 2013. https://dx.doi.org/10.14284/22 accessed via GBIF.org on 2024-12-15.

Description

Demersal surveys performed with bottom longline during research cruises around Azorean islands and several seamounts. Surveys conducted annually (few exceptions) from 1996 to 2013.

Sampling Description

Study Extent

Entire sampling area

Sampling

stone-buoy longline

Method steps

Sampling is performed using a "stone-buoy longline" similar to the one used in the commercial demersal fishery in the Azores. The sampling is stratified and random based on depth and geographic areas from 25 meters to 1200 meters mostly, but few sets down to 2000 meters. In some sets a different longline design was used (see Menezes et al. 2009). Soak time was usually 2 to 3 hours, but deeper sets (below 1000 meters) have longer soaks times. Chopped and salted sardines were used as bait.

Additional info

Sampling is performed using a "stone-buoy longline" similar to the one used in the commercial demersal fishery in the Azores. The sampling is stratified and random based on depth and geographic areas from 25 meters to 1200 meters mostly, but few sets down to 2000 meters. In some sets a different longline design was used (see Menezes et al. 2009). Soak time was usually 2 to 3 hours, but deeper sets (below 1000 meters) have longer soaks times. Chopped and salted sardines were used as bait.

Taxonomic Coverages

urn:lsid:marinespecies.org:taxname:1066

Crustacea
rank: subphylum

urn:lsid:marinespecies.org:taxname:51

Mollusca
rank: phylum

urn:lsid:marinespecies.org:taxname:11676

Pisces
rank: superclass

Geographic Coverages

Portugal

EurOBIS calculated BBOX > station Bounding Box

Bibliographic Citations

Contacts

Gui Menezes
originator
University of the Azores; Department of Oceanography and Fisheries
PT
email: gui.mm.menezes@uac.pt
userId: https://orcid.org/0000-0003-0781-4579

originator
Institute of Marine Research

originator
University of the Azores Department of Oceanography and Fisheries
PT
email: ricardo@uac.pt

Gui Menezes
metadata author
University of the Azores; Department of Oceanography and Fisheries
PT
email: gui.mm.menezes@uac.pt
userId: https://orcid.org/0000-0003-0781-4579

Diana Catarino
point of contact
University of the Azores; Department of Oceanography and Fisheries
PT
email: dianacatarino@uac.pt
userId: https://orcid.org/0000-0003-0635-6174

Gui Menezes
administrative point of contact
University of the Azores; Department of Oceanography and Fisheries
PT
email: gui.mm.menezes@uac.pt
userId: https://orcid.org/0000-0003-0781-4579