Identification

Title

Habitat point records from 1988-89 NRA Orwell Estuary sublittoral survey

Abstract

The main objective of this study was to assess the impact of the major discharge, Cliff Quay Sewage Treatment works on the benthic fauna of the Orwell Estuary. One Day Grab sample was taken at each of twenty eight sites. Sub samples of the sediment were taken for particle-size analysis and organic carbon content determination. The remainder of each sample was put through a 500 micron sieve and stored for later analysis. The results obtained indicated a gradual improvement of the subtidal fauna in a seaward direction. Four species assemblages were identified correlating with the distance down stream from the Orwell Bridge, the combined percentages of silt and clay and the percentage of organic carbon content. Sites in the upper estuary had low diversity, dominated by Tubificoides pseudogaster, Tubificoides swirencoides and Tharyx sp.. A faunistically impoverished area was observed around the Woolverstone Marina (sites 7-10), whereas an area of relatively high diversity was detected down stream of Collimer Point (sites 19-28).

Resource type

dataset

Resource locator

http://data.jncc.gov.uk/data/18032480-81f3-465c-b8ec-1dba40dd2c8c-1988-89-NRA-Orwell-Estuary-sublittoral-survey.csv

name: 1988-89-NRA-Orwell-Estuary-sublittoral-survey.csv

Unique resource identifier

code

18032480-81f3-465c-b8ec-1dba40dd2c8c

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Additional information source

Baxter (1989) Survey of the subtidal and intertidal benthic fauna in the Orwell estuary. Autumn 1988/Spring 1989 Fisher, Emblow, Bolt Ed: Fisher (1990) An environmental atlas of the Irish Sea

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

Marine

Marine Recorder

JNCCMNCR10000328

Habitat

MNCR

Geographic location

West bounding longitude

1.160733018

East bounding longitude

1.28769197

North bounding latitude

52.02903522

South bounding latitude

51.96097324

Temporal reference

Temporal extent

Begin position

1989-04-24

End position

1989-04-26

Dataset reference date

date type

publication

effective date

2001-08-29

Frequency of update

Quality and validity

Lineage

This survey was extracted from a Marine Recorder snapshot.

Conformity

Data format

name of format

Comma Separated Values

version of format

Unknown

Constraints related to access and use

Constraint set

Use constraints

Open Government Licence v3.0

Limitations on public access

no limitations

Responsible organisations

Responsible party

organisation name

Digital and Data Solutions, JNCC

email address

data@jncc.gov.uk

responsible party role

custodian

Metadata on metadata

Metadata point of contact

organisation name

Digital and Data Solutions, JNCC

email address

data@jncc.gov.uk

responsible party role

pointOfContact

Metadata date

2018-05-17

Metadata language

eng