2022 Natural England Mapping Invasive Non-Native Species on the River Itchen - Lee-on-The Solent to Itchen Estuary SSSI

Published by:
Marine Environmental Data & Information Network
Last updated:
29 April 2026
Topic:
Not added
Licence:
None

Summary

In 2017 The Marine Biological Association (MBA) carried out rapid assessment surveys (RAS) at a number of sites along the estuaries of the R. Itchen and the R. Hamble in the Solent as part of a wider study into the distribution of NNS in estuaries in southern England. The R. Itchen was surveyed from its tidal limit at Woodmill, down to where it meets Southampton Water. Natural England commissioned the work reported here to determine whether there has subsequently been any onward colonisation of INNS within the R. Itchen, and in particular of the Red-ripple bryozoan (Watersipora subatra), an invasive bryozoan which has been shown to be spreading widely in the Solent (and elsewhere) and was recorded at only one site at the mouth of the R. Itchen in 2019, subsequent to the baseline surveys in 2017.

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Data links

Link to the data Format File added Data preview
DOI link N/A 29 April 2026 Not available

Additional information

View additional metadata
Added to data.gov.uk
2026-04-22
Access contraints
OGL - https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/
Harvest GUID
cb409e0d-f5af-415a-af96-bca466c607e7
Extent
Latitude: 50.934258° to °
Longitude: -1.390° to -1.377946°
Spatial reference system
Dataset reference date
2026-04-22 (publication)
Frequency of update
notPlanned
Responsible party
Natural England (owner, custodian); DASSH, The Archive for Marine Species and Habitat Data (custodian, distributor); Marine Biological Association of the United Kingdom (originator)
ISO 19139 resource type
dataset
Metadata language
eng
Source Metadata
XML
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