SISP 7 - Manual for the Baltic International Trawl Surveys (BITS). Version 2.
View/ Open
Average rating
votes
Date
2017Corporate Author
International Council for the Exploration of the Sea (ICES)
Status
PublishedPages
95pp.Metadata
Show full item recordAbstract
This manual describes the coordinated survey design for Baltic international trawl surveys. Randomly stratified fishing-stations location is based on ICES subdivisions and their depth layers as strata to reflect the variability of the Baltic target species temporal-spatial distribution pattern. Besides the traditional Baltic International Trawl Survey (BITS-Q1) in February-March additional coordinated, routine survey (BITS-Q4) has been conducted in November, since 2001. The above-mentioned demersal trawl surveys are coordinated by the ICES WGBIFS. The surveys aimed to the monitoring of the spatial distribution and year-classes abundance of the demersal species, i.e. cod (Gadus morhua), flounder (Platichthys flesus) and other flatfish (plaice - Pleuronectes platessa, turbot - Scophthalmus maximus, dab - Limanda limanda, brill - Scophthalmus rhombus) and to some extent to clupeids (sprat - Sprattus sprattus and herring - Clupea harengus) in the Baltic Sea. WGBIFS agreed in 2009, that dat.....
Resource URL
https://doi.org/10.17895/ices.pub.c.6315609Publisher
International Council for the Exploration of the Sea (ICES)Denmark, Copehagen
Series;Nr
Series of ICES Survey Protocols;SISP 7Document Language
enSustainable Development Goals (SDG)
14.2Essential Ocean Variables (EOV)
Fish abundance and distributionMaturity Level
MatureSpatial Coverage
Baltic SeaDOI Original
http://doi.org/10.17895/ices.pub.2883Citation
International Council for the Exploration of the Sea (2017) SISP 7 - Manual for the Baltic International Trawl Surveys (BITS). Version 2. Copenhagen, Denmark, ICES, 95pp. (Series of ICES Survey Protocols SISP 7). DOI: http://doi.org/10.17895/ices.pub.2883The following license files are associated with this item: