VERDA: A Multisampler Tool for Mesopelagic Nets
Different types and systems to discriminate plankton samples at different strata in the water column have been developed in recent decades. For sampling at sufficient depth, opening and closing zooplankton multinets are ideal because there is no contamination of one sample with organisms of the prev...
Published in: | Journal of Marine Science and Engineering |
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MDPI AG
2023
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Online Access: | https://doi.org/10.3390/jmse11010072 https://doaj.org/article/4be97e621637486885862aa20a5e41eb |
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ftdoajarticles:oai:doaj.org/article:4be97e621637486885862aa20a5e41eb 2023-05-15T16:51:25+02:00 VERDA: A Multisampler Tool for Mesopelagic Nets Arturo Castellón María Pilar Olivar 2023-01-01T00:00:00Z https://doi.org/10.3390/jmse11010072 https://doaj.org/article/4be97e621637486885862aa20a5e41eb EN eng MDPI AG https://www.mdpi.com/2077-1312/11/1/72 https://doaj.org/toc/2077-1312 doi:10.3390/jmse11010072 2077-1312 https://doaj.org/article/4be97e621637486885862aa20a5e41eb Journal of Marine Science and Engineering, Vol 11, Iss 72, p 72 (2023) stratified sampling micronekton midwater trawls Mesopelagos Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 article 2023 ftdoajarticles https://doi.org/10.3390/jmse11010072 2023-01-22T01:27:20Z Different types and systems to discriminate plankton samples at different strata in the water column have been developed in recent decades. For sampling at sufficient depth, opening and closing zooplankton multinets are ideal because there is no contamination of one sample with organisms of the previous one. However, for bigger nets, such as those used to collect micronektonic organism, it is difficult to use multiple net units, and multiple cod ends are preferred because of their simplicity, but with the problem of sample contamination from having a common net passageway. We present here a cod-end Multisampler design, VERDA, that uses a carrousel-like system. Similar to some sediment traps, the system works like a revolver with six or eight compartments whose turning mechanism is triggered when the net arrives to a programmed depth level. This prototype was built with inexpensive and recycled components and electronics similar to Arduino ® and Teensy PCB to carry out electronic control. The net we used for testing the equipment was a mid-size midwater trawl of ca. 30 m 2 and total length of 58 m that works with a single towing cable and no doors. The overall system is useful for all type of ships, due to the relatively easy deployment operations and because the Multisampler does not need electrical cable or acoustics. In our case, we used a Marport ® (Reykjavik Iceland) and Scanmar (Åsgårdstrand, Norway) sensors for real-time depth monitoring and opening distance. Article in Journal/Newspaper Iceland Directory of Open Access Journals: DOAJ Articles Norway Journal of Marine Science and Engineering 11 1 72 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
stratified sampling micronekton midwater trawls Mesopelagos Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
spellingShingle |
stratified sampling micronekton midwater trawls Mesopelagos Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Arturo Castellón María Pilar Olivar VERDA: A Multisampler Tool for Mesopelagic Nets |
topic_facet |
stratified sampling micronekton midwater trawls Mesopelagos Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
description |
Different types and systems to discriminate plankton samples at different strata in the water column have been developed in recent decades. For sampling at sufficient depth, opening and closing zooplankton multinets are ideal because there is no contamination of one sample with organisms of the previous one. However, for bigger nets, such as those used to collect micronektonic organism, it is difficult to use multiple net units, and multiple cod ends are preferred because of their simplicity, but with the problem of sample contamination from having a common net passageway. We present here a cod-end Multisampler design, VERDA, that uses a carrousel-like system. Similar to some sediment traps, the system works like a revolver with six or eight compartments whose turning mechanism is triggered when the net arrives to a programmed depth level. This prototype was built with inexpensive and recycled components and electronics similar to Arduino ® and Teensy PCB to carry out electronic control. The net we used for testing the equipment was a mid-size midwater trawl of ca. 30 m 2 and total length of 58 m that works with a single towing cable and no doors. The overall system is useful for all type of ships, due to the relatively easy deployment operations and because the Multisampler does not need electrical cable or acoustics. In our case, we used a Marport ® (Reykjavik Iceland) and Scanmar (Åsgårdstrand, Norway) sensors for real-time depth monitoring and opening distance. |
format |
Article in Journal/Newspaper |
author |
Arturo Castellón María Pilar Olivar |
author_facet |
Arturo Castellón María Pilar Olivar |
author_sort |
Arturo Castellón |
title |
VERDA: A Multisampler Tool for Mesopelagic Nets |
title_short |
VERDA: A Multisampler Tool for Mesopelagic Nets |
title_full |
VERDA: A Multisampler Tool for Mesopelagic Nets |
title_fullStr |
VERDA: A Multisampler Tool for Mesopelagic Nets |
title_full_unstemmed |
VERDA: A Multisampler Tool for Mesopelagic Nets |
title_sort |
verda: a multisampler tool for mesopelagic nets |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/jmse11010072 https://doaj.org/article/4be97e621637486885862aa20a5e41eb |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Journal of Marine Science and Engineering, Vol 11, Iss 72, p 72 (2023) |
op_relation |
https://www.mdpi.com/2077-1312/11/1/72 https://doaj.org/toc/2077-1312 doi:10.3390/jmse11010072 2077-1312 https://doaj.org/article/4be97e621637486885862aa20a5e41eb |
op_doi |
https://doi.org/10.3390/jmse11010072 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
11 |
container_issue |
1 |
container_start_page |
72 |
_version_ |
1766041534289936384 |