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Demersais survey in the Azores between 1996 and 2013
Citable as data publication
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. http://dx.doi.org/10.14284/22

Access data
Archived data
Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

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. more

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.

Scope
Themes:
Biology, Biology > Benthos, Biology > Fish
Keywords:
Marine, ANE, Azores, Crustacea, Mollusca, Pisces

Geographical coverage
ANE, Azores [Marine Regions]

Temporal coverage
1994 - 2013
Yearly

Taxonomic coverage
Crustacea [WoRMS]
Mollusca [WoRMS]
Pisces [WoRMS]

Parameter
Fish species Methodology
Fish species: stone-buoy longline
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.

Contributors
Institute of Marine Research (IMAR), moredata creator
University of the Azores; Department of Oceanography and Fisheries (DOP), moredata creatordata owner

Related datasets
Published in:
EurOBIS: European Ocean Biogeographic Information System, more

Publication
Based on this dataset:
Menezes, G.M. et al. (2009). Demersal fish assemblages off the Seine and Sedlo seamounts (northeast Atlantic). Deep-Sea Res., Part II, Top. Stud. Oceanogr. 56(25): 2683-2704. dx.doi.org/10.1016/j.dsr2.2008.12.028, more
Menezes, G.M. et al. (2013). Reconstruction of demersal fisheries history on the Condor seamount, Azores archipelago (Northeast Atlantic). Deep-Sea Res., Part II, Top. Stud. Oceanogr. 98(A): 190-203. dx.doi.org/10.1016/j.dsr2.2013.02.031, more
Menezes, G.M. et al. (2006). Structure and zonation of demersal fish assemblages off the Azores Archipelago (mid-Atlantic). Mar. Ecol. Prog. Ser. 324: 241-260. hdl.handle.net/10.3354/meps324241, more

Dataset status: Completed
Data type: Data
Data origin: Monitoring: field survey
Metadatarecord created: 2004-06-30
Information last updated: 2016-06-01
All data in IMIS is subject to the VLIZ privacy policy