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PREFERRED TERM
SDN:B07::NDT018Multiple net/multiple cod-end system or CPR horizontal tow  
DEFINITION
  • Multiple nets are deployed on a single frame with opening and closing capability or this type of deployment also applies to a single net with a multiple cod-end system or a Continuous Plankton Recorder (CPR). In the case of a system like MOCNESS, the first net (0) is deployed to a predetermined depth, open. Once at that depth, that net is closed, at the same time opening the second (net 1) net. Net 1 and all subsequent nets are opened/closed at the depth selected for the horizontal tow. For systems, like the Multinet, the system can be deployed without a net open and the first net is opened at the selected depth. The CPR is normally towed horizontally just below the sea surface and samples plankton on a single slow-moving band of silk that is then spooled in a storage tank until recovery. Examples of gears that can be deployed that way include MOCNESS, BIONESS, Multinet, multiple net opening/closing systems; cod-end serial samplers such as LHPR, ARIES; CPR. See Wiebe and Benfield 2003, Plates 19, 27-31.
ENTRY TERMS
  • Serial sampler horizontal tow
NOTE
  • accepted
IDENTIFIER
  • SDN:B07::NDT018
DATE
  • 2014-10-14 12:14:45.0
IDENTIFIER
  • SDN:B07::NDT018
VERSION
  • 1
IN OTHER LANGUAGES
Serial sampler horizontal tow
URI
http://vocab.nerc.ac.uk/collection/B07/current/NDT018/
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