Identification

Title

Species point records from 1988 STPG Severn Estuary sublittoral survey

Abstract

This survey sampled the area of the Severn Estuary identified by Warwick and Davies (1977) as an area of impoverished fauna. The survey of the Severn Estuary was part of a broader survey, combining an investigation of benthic macrofauna, sediment distribution and transport. Quantitative infaunal samples were obtained from 6 April to 6 May 1988, using a weighted Day Grab (0.1m2 surface area), at points on a grid with intersections at intervals of 1.5 km; sieved through a 0.5 mm mesh. Sampling stations extended from the seaward limit due south of Sker Point (03 45 W) in the west, to the landward limit at the mouth of the River Wye (03 40 W). Where hard substrata occurred, west of 03 20 W stations were unable to be adequately sampled and thus omitted. Single samples were taken (with a few exceptions where small volumes were grabbed, up to 4 replicates were taken) and a sub-sample removed for sediment analysis. 136 stations containing 112 macrobenthic taxa were used in analysis (Mettam et al. 1994), and 8 faunal groups identified. Although 589 stations were sampled, not all have been worked up, and Dr. Mettam requires funding in order to process the remaining samples, all of which cover intermediate positions. [Dr. Chris Mettam (University of Wales College of Cardiff) supplied data for the infaunal samples; Richard Powys, GeoSea (UK) Ltd (Cambridge), was responsible for sediment analysis and supplied the granulometry data. The survey was funded by the Severn Tidal Power Group, and permission to obtain the data was given by Steve Tailor (McAlpine) chairman of STPG meeting board.]

Resource type

dataset

Resource locator

http://data.jncc.gov.uk/data/1ac71077-1766-439f-a1fc-06f3533a0b53-1988-STPG-Severn-Estuary-sublittoral-survey.csv

name: 1988-STPG-Severn-Estuary-sublittoral-survey.csv

Unique resource identifier

code

1ac71077-1766-439f-a1fc-06f3533a0b53

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Additional information source

Mettam, Conneely, White (1994) Benthic macrofauna and sediments in the Severn estuary Cribb (1958) A note on the structure of green alga $Callipsygma wilsonis$ J. Ag.

Classification of spatial data and services

Topic category

oceans

Keywords

Keyword set

keyword value

Marine

Marine Recorder

JNCCMNCR10000460

MNCR

Species

Geographic location

West bounding longitude

-3.748235793

East bounding longitude

-2.723298326

North bounding latitude

51.85474767

South bounding latitude

51.19499078

Temporal reference

Temporal extent

Begin position

1988-04-06

End position

1988-05-06

Dataset reference date

date type

publication

effective date

1999-07-26

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

Not Known

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