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EMBRC-BE Joint Development Activity: Optimisation of in-situ sampling from ARMS in dynamic coastal environments [EMBRC-BE Joint Development Activity: Optimisation of in-situ sampling from ARMS in dynamic coastal environments]
Contact:

Availability: This work is licensed under http://vocab.nerc.ac.uk/collection/L08/current/MO meaning it is under moratorium until 2024-12-30

Description

In this Belgian EMBRC Joint Development Activity, funded by FWO, we tested deployment of Autonomous Reef Monitoring Structures (ARMS) in coastal dynamic environments and assessed different retrieval strategies in a methodological study. ARMS are typically deployed in shallow and sheltered areas, like ports and marinas, and are easily accessible with divers. Deploying further offshore, at greater depths and in dynamic environmental conditions with high currents and limited visibility, complicates deployment and retrieval strategies by divers. To this end we explored two set-ups to anchor ARMS in an offshore windmill farm: a concrete anchor and a tripod mounted with a float and acoustic release system. Each set-up was mounted with 3 replicate ARMS units, with each replicate unit undergoing a different retrieval treatment. One replicate unit was left uncovered and winched on board of the RV using the vessels’ A-frame, one replicate units was covered with a crate by a diver before being winched on board, a third replicate unit was covered by a mesh and crate, cut loose from the anchor or tripod by a diver and brought to the surface by hand. Motile and sessile fractions were identified morphologically and subsequently used for the development of sequencing protocols for Oxford Nanopore Technologies (ONT). 

The JDA will deliver SOPs related to the operational and dive work at sea, lab processing, including the construction of a standardized photo set-up, subsequent morphological analysis and sequencing using ONT. 


Scope
Themes:
Biology > Benthos > Macrobenthos
Keywords:
Belgian part of the North Sea

Geographical coverage
Belgian part of the North Sea [Marine Regions]

Temporal coverage
1 November 2022 - 31 December 2024

Contributors
Koninklijk Belgisch Instituut voor Natuurwetenschappen (IRScNB/KBIN), more

Related datasets
Parent dataset:
ARMS-MBON data on long-term monitoring and biodiversity assessment of invasive and indigenous hard-bottom communities, more

Dataset status: In Progress
Metadatarecord created: 2024-07-08
Information last updated: 2024-07-08
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