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The undulating oceanographic recorder - A new instrument system for sampling plankton and recording physical variables in the euphotic zone from a ship underway Bruce, R.H.; Aiken, J. (1975). The undulating oceanographic recorder - A new instrument system for sampling plankton and recording physical variables in the euphotic zone from a ship underway. Mar. Biol. (Berl.) 32: 85-97 In: Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793

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Beschikbaar in	Auteurs
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Trefwoorden

Aquatic communities > Plankton Aquatic sciences > Marine sciences > Earth sciences > Oceanography Collecting devices > Plankton collecting devices Dimensions > Depth > Water depth Distribution > Geographical distribution > Vertical distribution Equipment > Recording equipment Properties > Chemical properties > Salinity Properties > Physical properties > Thermodynamic properties > Temperature Sampling > Biological sampling Acartia (Acartiura) clausii Giesbrecht, 1892 [WoRMS]; Calanus finmarchicus (Gunnerus, 1770) [WoRMS]; Calanus hyperboreus Krøyer, 1838 [WoRMS]; Evadne nordmanni Lovén, 1836 [WoRMS]; Metridia longa (Lubbock, 1854) [WoRMS]; Metridia lucens Boeck, 1865 [WoRMS] Marien/Kust

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Auteurs		Top
Bruce, R.H. Aiken, J.

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Abstract

The prototype Undulating Oceanographic Recorder Mark I is an instrumented towed vehicle which can be programmed to undulate between a minimum depth of 8 m and a selected maximum depth between 15 and 70 m, with an undulation length between 3 and 30 km, at any speed between 7 and 15 knots (3.6 to 7.7 m/sec). It takes a continuous series of plankton samples, each integrated over the undulation depth range, and records data on magnetic tape, at a preselected rate between 30/min and 30/h, from which salinity, temp and depth can be derived with accuracies of +- 0.1%, +- 0.1C{degree} and +- 0.5m, respectively. The instrument is automatic, self-contained and generates its own power supplies. It is towed on {approx}200m of unfaired steel cable and can be handled with the winching and lifting equipment found on most research vessels. Examples of processed data from three cruises are presented: temperature and salinity contours on a vertical section through a complex stratified area in the N.W.Irish Sea; results from a survey of the waters over the continental shelf and slope to the north of Scotland, showing the distribution of water masses and associated plankton; and hydrographic data taken in Loch Etive on the west coast of Scotland.

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