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2004 Strategic Environmental Assessment SEA5 Technical Report - Cephalopods (North Sea)

Publisher
British Geological Survey (BGS)
Updated
15 March 2024
Topic
Not set

Summary

This report is a contribution to the Strategic Environmental Assessment (SEA5) conducted by the Department of Trade and Industry (now Department of Energy and Climate Change). Cephalopods are short-lived molluscs, characterised by rapid growth rates, and are important predators and prey in oceanic and neritic environments. They can range in size from 1.5 cm in pygmy squid (Sepiolidae) to 20 m in giant squid (Architheutidae). Cephalopods exhibit the highest degree of development in invertebrate nervous systems, expressed through complex behaviour patterns such as the ability to learn and the display of complex colour changes. In contrast to other molluscs, most cephalopods lack an external shell, are highly mobile as adults and occupy similar ecological niches to predatory fish. This report focuses mainly on the species of fishery importance: the loliginid squid Loligo forbesi and the ommastrephid squid Todarodes sagittatus and Todaropsis eblanae together with the octopus Eledone cirrhosa. Brief accounts of other commonly occurring cephalopod species are also provided.

Data links

Link Format Preview Updated
Strategic Environmental Assessment (SEA) data portal HTML 15/3/2024

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Additional information

Source Metadata
XML, HTML
Date added
30 August 2011
Harvest GUID
aba64100-c134-4de3-e044-0003ba6f30bd
Extent (Latitude)
61.5° to 55.8°
Extent (Longitude)
-4° to 1°
Spatial reference system
urn:ogc:def:crs:EPSG::4326
Dataset reference date (publication)
2004-01-01
Frequency of update
notPlanned
Responsible party
British Geological Survey (BGS) (custodian); Department for Energy and Climate Change (DECC) (originator)
ISO 19139 resource type
dataset
Metadata language
eng

Contact

offshoredata@bgs.ac.uk

Freedom of Information (FOI) requests

Licence information

The SEAs data were produced as part of the UK Department of Energy and Climate Change's Offshore Energy Strategic Environmental Assessment programme; Crown Copyright, all rights reserved. The DECC SEA must be acknowledged in any maps or publications that make use of the data. All the data files are freely available to the public. The Strategic Environmental Assessment (SEA) data portal provides free access to available data and reports which have been produced through the SEA process. The site is run and managed by BGS on behalf of the Department of Energy and Climate Change (DECC). Many files can be downloaded directly from this website. Those that are too large to download can be ordered via the website for postal delivery from BGS. BGS (NERC) has been contracted by DECC to publish SEA datasets on its behalf. All intellectual property rights (including , without limitation, copyrights, database rights and all other rights which subsist or may at any time in the future subsist in the Dataset(s)) in the Dataset(s) ('Intellectual Property Rights') are owned by DECC (formerly the Department of Trade and Industry, and the Department for Business, Enterprise and Regulatory Reform). BGS has been authorised by DECC to use SEA datasets for all purposes but on a 'not-for-profit basis'. BGS has been authorised by DECC to pass on SEA datasets to third parties so that they can use them for all purposes but on a 'not-for-profit' basis.