1989-UMBSM-Mull-sealochs-survey.csv
type: Distribution
access URL: http://data.jncc.gov.uk/data/10152001-773b-4053-b621-aaa12fb66f76-1989-UMBSM-Mull-sealochs-survey.csv
description: Resource locator
format: CSV
issued: 2015-12-15T20:17:32.378719
modified: 2015-12-15T20:17:32.378719

Habitat point records from 1989 UMBSM Mull sealochs survey
type: Dataset
description: The island of Mull, which is the second largest of the Scottish Inner Hebrides island group, has a deeply indented coastline containing nine sealochs and at least one other large embayment. The sublittoral of seven of these sealochs, Buie, Mingary, a' Chumhainn, Tuath, na Keal, Scridain and na Lathaich, along with Calgary Bay, were surveyed in 1989 as part of a major survey of Scottish sealochs. Lochs na Keal and Scridain are large, sill-bound lochs with basins exceeding 100m depth, and have a wide range of exposures to wave action along their lengths. Lochs Tuath and Buie are also large, but are estuarine in nature, having no definable sills or basins, and have maximum depths of 48 and 105m respectively. Loch Buie is wide-mouthed and faces into the prevailing winds, and so lacks significant shelter, whilst Loch Tuath possesses higher levels of shelter at its head. The remaining lochs are small and shallow, lacking sills and basins. Loch na Lathaich opens onto the large western embayment on Mull, and is well sheltered throughout its length, whereas the other lochs open onto the exposed north-west coast and lack appreciable shelter. None of have significant narrows or tidal rapids, and tidal streams are generally weak or negligible. Substrata in the lochs varies widely, from shallow bedrock and coarse shell gravel in the exposed north-western lochs, to vertical deep bedrock and predominantly muddy sediments in the heavily glaciated lochs na Keal and Scridain. The area is relatively undeveloped, with few fish farms. Fifty-eight sublittoral sites were surveyed, from which twenty habitat or community types were described. The exposed north- western lochs contained Laminaria hyperborea forests on bedrock which gave way to coarse shell gravel supporting beds of maerl Phymatolithon calcareum with a variety of foliose red and brown algae attached. Calgary Bay also had Laminaria hyperborea dominated infralittoral bedrock, but the sediment was sand with a relatively rich biva…
issued: 2015-12-15T20:17:32.299983
modified: 2018-05-17T12:25:01.203448
spatial: Location
  geometry: {"type":"Polygon","coordinates":[[[-5.890756069, 56.30641073],[-5.890756069, 56.65106045], [-6.331208185, 56.65106045], [-6.331208185, 56.30641073], [-5.890756069, 56.30641073]]]}

Joint Nature Conservation Committee
type: Organization