Concept
Modified Longhurt-Hardy Plankton Recorder - Haury et al. (1976)
| URI | http://vocab.nerc.ac.uk/collection/L22/current/NETT0083/ | |
|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | |
| Alternative Labels | Haury modified LHPR | |
| Definition | Three lengths (230, 300, 370 cm) of 70 cm diameter net were mounted in a towing frame. The modified recorder box had a mesh area to mouth opening ratio of 2.9 as opposed to < 1.0 for previous designs and the orientation of the gauze across the recorder box tunnels was horizontal instead of vertical. The modified design reduced or eliminated many of the problems observed in earlier designs. Data on pressure and temperature and flow counts were logged on an internal recorder in the pressure case. Normally towed at 1.5 to 2.5 knots and collected ~ 100 samples [Wiebe and Benfield 2003 Plate 26 E]. | |
| Date | 2011-10-21T14:18:49 | |
| Identifier | SDN:L22::NETT0083 | |
| Note | accepted | |
| Has Current Version | 1 | |
| version | 1 | |
| inScheme | http://vocab.nerc.ac.uk/scheme/SDNDEV/current/ | |
| Broader | L05:134 | water temperature sensor |
L19:SDNKG17 | sensor_model | |
L05:388 | flow meters | |
L05:21 | plankton recorders | |
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