Habitat point records from 1988-89 NRA Orwell Estuary littoral survey
The main objective of this survey was to assess the impact of the major discharge, Cliff Quay Sewage Treatment works on the intertidal fauna of the Orwell Estuary. All twenty five sites were located between Cliff Reach and Shotley Point. A sediment sample was collected at each site for particle-size analysis and organic carbon content determination. Data from sites 1, 4, and 24 are missing from the survey report. In a preliminary survey, the upper estuary had been described as faunistically impoverished, suffering from over-dominance of a few species, in particular Tharyx sp and the tubificids. Contrary to the preliminary survey, no major trends in intertidal species diversity were found along the length of the estuary. Species assemblages were found to be related to the percentage of clay, the percentage of silt and the mean particle size of the sediment. Very high levels of abundance were recorded in the upper estuary, the dominant species being Tubificoides pseudogaster.
dataset
name: 1988-89-NRA-Orwell-Estuary-littoral-survey.csv
fb651f07-8778-4bc4-93c0-e6447d0b3d97
eng
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
oceans
Marine
Marine Recorder
JNCCMNCR10000327
Habitat
MNCR
1.15373446
1.289579377
52.03686114
51.9648778
1988-10-18
1988-11-03
publication
2001-08-29
This survey was extracted from a Marine Recorder snapshot.
Comma Separated Values
Unknown
Open Government Licence v3.0
no limitations
Digital and Data Solutions, JNCC
custodian
Digital and Data Solutions, JNCC
pointOfContact
2018-05-17