2019-2020 Cornwall Inshore Fisheries and Conservation Authority (IFCA) Scallop dredging Survey

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Not released
Published by:
Marine Environmental Data & Information Network
Last updated:
27 May 2021
Topic:
Not added
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Summary

Cornwall Inshore Fisheries and Conservation Authority (CIFCA) is the authority responsible for the sustainable management of sea fisheries in the Cornwall IFCA district, which extends to 6 nautical miles from coastal baselines. Dredging for king scallops in the Cornwall IFCA district is currently subject to a number of byelaws, including; Shellfish Boats Byelaw, Scallop Dredge (Limited Fishing Time) byelaw and Methods of Fishing (Dredges) byelaw. These byelaws limit boat size to 16.46m in the district, prohibit scallop dredging between 7pm and 7am and stipulate gear requirements, including a limit of 12 dredges per vessel at any one time. Cornwall IFCA’s research team are preparing to start annual dredge tow surveys for scallops within the district. Currently the proposal is to conduct annual survey tows at a number of inshore sites within the district which were previously regularly surveyed by CEFAS along with some new sites. Data from these surveys, in conjunction with the larger current Cefas Stock Assessment program, would help to guide management of this fishery in inshore waters. Cornwall IFCA carried out this survey in preparation to start annual dredge tow surveys for scallops within the district. Currently the proposal is to conduct annual survey tows at a number of inshore sites within the district which were previously regularly surveyed by CEFAS along with some new sites. Data from these surveys, in conjunction with the larger current Cefas Stock Assessment program, would help to guide management of this fishery in inshore waters. The aim of the project was to develop a suitable method for repeat surveying for scallops from R/V Tiger Lily, to be used in multiple locations. The objectives of the survey were to trial the effectiveness of the N-Virodredge and tow bar for dredging for scallops from R/V Tiger Lily, to obtain measurement of all scallops (P. maximus) collect and to trial identifying and measuring the growth rings on individual scallop shells for ageing purposes. In 2019, five tows were completed with a total of 74 scallops recorded. In 2020, a total of nine tows were completed with a total of 105 scallops recorded.

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Additional information

View additional metadata
Added to data.gov.uk
2024-07-22
Access contraints
No restrictions to public access
Harvest GUID
fc5f58fca24ea6b70f2cb425c7fb26a2
Extent
Latitude: 50.2182° to 50.1987°
Longitude: -4.8858° to -4.8699°
Spatial reference system
urn:ogc:def:crs:EPSG::32630
Dataset reference date
2021-05-27 (publication)
Frequency of update
asNeeded
Responsible party
Cornwall Inshore Fisheries and Conservation Authority (originator, custodian)
ISO 19139 resource type
dataset
Metadata language
eng
Source Metadata
XML
HTML

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Data is freely available for research or commercial use providing that the originators are acknowledged in any publications produced. Permission must be sought if the data will be reproduced in full or part or if used in any analyses. This data is not suitable for use in navigation