Habitat point records from 1982 OPRU Jura and Islay sublittoral survey
type: Dataset
description: 1. This report describes the results of surveys of nearshore sublittoral habitats and communities around the Hebridean islands of Jura and Islay in June and July 1982. 2. Sites were selected to ensure that as wide a range of habitats as possible was surveyed and sampled in the two weeks of survey. Survey was carried out using diving and systematic records were made of the habitats present and of the abundance of conspicuous species in those habitats. Photographs were taken to illustrate the communities and species present. 3. Fifty sites including about 110 stations were surveyed along the 350 km of coastline within the survey area. The sites were distributed all around the islands and included locations from sites that were exposed to extremely strong water movements to those sheltered within sea lochs. Twenty-three different habitats and associated communities were distinguished and the occurrence of 540 species described as a result of the survey. 4. The upper infralittoral (dominated by Laminaria hyperborea) extended to 15 to 17 m on the open coast. The extent of the infralittoral (dominated by foliose algae) appeared to be only a little deeper but records were difficult to obtain because of the small amount of sublittoral bedrock present in deep water. For the same reason, records of the extent of the upper circalittoral (where foliose algae are still present) were not confidently obtained although spots of encrusting algae and one small piece of a foliose alga were collected at 36 to 38 m in the Sound of Jura. 5. The main contrasts in community types were between the bedrock sites extremely exposed to water movement and those extremely sheltered from water movement with a very large number of sites with basically similar communities present in between. Some of the communities were 'classic' exposed coast, tidal sound, rapids or sea loch communities characterised by species not encountered or rare elsewhere. Several habitats were searched for but not found incl…
issued: 2015-12-15T20:17:38.203654
modified: 2018-05-17T12:25:17.615612
spatial: Location
  geometry: {"type":"Polygon","coordinates":[[[-5.672933122, 55.56050956],[-5.672933122, 56.15598134], [-6.537482905, 56.15598134], [-6.537482905, 55.56050956], [-5.672933122, 55.56050956]]]}

Joint Nature Conservation Committee
type: Organization

1982-OPRU-Jura-and-Islay-sublittoral-survey.csv
type: Distribution
description: Resource locator
format: CSV
access URL: http://data.jncc.gov.uk/data/14c7f6d1-702a-4fee-a6f3-5c0d08d8aaaa-1982-OPRU-Jura-and-Islay-sublittoral-survey.csv
issued: 2015-12-15T20:17:38.266906
modified: 2015-12-15T20:17:38.266906