b72b6ea8-c4de-41c7-816a-e506f1a56d19 eng dataset Digital and Data Solutions, JNCC data@jncc.gov.uk pointOfContact 2018-05-17 Species point records from 1965-70 DAFS Scottish littoral sediment survey 2014-09-29 2014-09-29 b72b6ea8-c4de-41c7-816a-e506f1a56d19 The study of a number of sandy beaches covering a range of environmental conditions revealed faunistic variation which reflected the different species' tolerance of or preference for the conditions prevailing on particular beaches. Whenever a balanced situation in the environmental conditions existed, especially between shelter and exposure, a typical marine north-temperate water community characterised by the bivalve Tellina tenuis was present. This comunity included a basic faunistic complement consisting of polychaetes (both sessile and errant) on the mid and lower shore, and a few crustaceans on the upper shore. Severe exposure restricts diversity, eliminating sedentary forms, especially bivalve molluscs and, encouraging the numerical dominance of agile swimmers such as haustoriid amphipods and isopods. These species have a short life-span and the fauna is characterised by its flexibility. Extreme shelter favours the establishment of a predominantly sessile community of polychaetes and long-living bivalves. Digital and Data Solutions, JNCC data@jncc.gov.uk custodian Marine Marine Recorder JNCCMNCR10000326 MNCR Species Open Government Licence v3.0 otherRestrictions no limitations eng oceans -7.430422549 -2.001723168 54.47139107 58.70189748 1965-03-10 1970-04-08 Eleftheriou, McIntyre (1976) The intertidal fauna of sandy beaches - a survey of the Scottish coast Comma Separated Values Unknown http://data.jncc.gov.uk/data/b72b6ea8-c4de-41c7-816a-e506f1a56d19-1965-70-DAFS-Scottish-littoral-sediment-survey.csv 1965-70-DAFS-Scottish-littoral-sediment-survey.csv This survey was extracted from a Marine Recorder snapshot.