Concept
Multiple net/multiple cod-end system or CPR horizontal tow
| URI | http://vocab.nerc.ac.uk/collection/B07/current/NDT018/1/ | |
|---|---|---|
| Within Vocab | Sampling net gear deployment vocabulary | |
| Alternative Labels | Serial sampler 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. | |
| Date | 2014-10-14T12:14:45 | |
| Identifier | SDN:B07::NDT018 | |
| Note | accepted | |
| Is Version Of | NDT018 | |
| version | 1 | |
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