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<oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:title xmlns:dc="http://purl.org/dc/elements/1.1/">1504S-North sea mackerel acoustic survey-Scotia cruise 1504</dc:title>
  <dc:type xmlns:dc="http://purl.org/dc/elements/1.1/">dataset</dc:type>
  <dc:identifier xmlns:dc="http://purl.org/dc/elements/1.1/">https://portal.medin.org.uk/portal/start.php?tpc=012_Marine_Scotland_FishDAC_1754</dc:identifier>
  <dc:description xmlns:dc="http://purl.org/dc/elements/1.1/">Daily folders (16) of Simrad format (.raw) acoustic data. 16 daily folders of acoustic data (.ek5 format) 9 Echoview format (EV) format analysis files. Excel biological data for 16 pelagic hauls. CTD data for 27 vertical dips. 
Objectives:
1.	To conduct an acoustic survey to estimate the abundance and distribution of mackerel in the northern North Sea (ICES division IVa).

2.	To obtain samples of mackerel for biological analysis, including age, length, weight, sex and maturity.

3.	To determine the species composition and target strength of fish in schools using the autonomous echosounder and video rig.

4.	To make video observations of the multi-sampling pelagic trawl with the RCTV.</dc:description>
  <dc:date xmlns:dc="http://purl.org/dc/elements/1.1/">20160509</dc:date>
</oai_dc:dc>