Identification

Title

Habitat point records from 1987 AWA Breydon Water littoral survey

Abstract

The survey was carried out as an extension intensive surveys of the River Yare earlier in 1987. Also, public concern over the inadequacy of sewage disposal facilities in the Yarmouth area. At present, thirty outfalls discharge crude sewage into the lower River Bure, causing some organic enrichment to the lower River Bure. The survey was carried out in the first week in June 1987. Eight sites were sampled with a cylindrical corer (15cms diam by 20cms deep). Three replicates were taken from the mid horizontal distance point between high and low tides. Cores were taken soon after low water on each occassion. A sub sample from each sample was taken for sediment analysis, the remainder was sieved through a 500 micron sieve. The survey suggests sewage enrichment of the lower estuary increases the productivity but does not adversely affect the species diversity. It was also postulated that much of the mercury discharged through the Norwich sewage works during the previous twenty years has accumulated in the sediments of Breydon Water. The estuary was found to support a healthy, but undiverse invertebrate fauna. The lack of diversity was thought to be due to the homogeneity of the sediment types and the lack of extremes of salinity within Breydon Water. Breydon Water satisfied the biological, chemical, and aesthetic criteria for a class A estuary under the UK Estuarine Classification Scheme. Breydon Water is important as an over-wintering ground for waders, wildfowl and gulls.

Resource type

dataset

Resource locator

http://data.jncc.gov.uk/data/355764b3-e311-4d77-b40f-d141772da9d1-1987-AWA-Breydon-Water-littoral-survey.csv

name: 1987-AWA-Breydon-Water-littoral-survey.csv

Unique resource identifier

code

355764b3-e311-4d77-b40f-d141772da9d1

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Additional information source

Johnson (1988) Breydon Water intertidal survey (June 1987) Reise, Schubert (1987) Macrobenthic turnover in the subtidal Wadden Sea: the Norderaue revisited after 60 years

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

Marine

Marine Recorder

JNCCMNCR10000345

Habitat

MNCR

Geographic location

West bounding longitude

1.633150832

East bounding longitude

1.717788823

North bounding latitude

52.62300857

South bounding latitude

52.57540129

Temporal reference

Temporal extent

Begin position

1987-07-01

End position

1987-07-10

Dataset reference date

date type

publication

effective date

2001-11-14

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