Marine Biodiversity Data Portal - NI
Launches Little (sand), Strangford Lough.
Survey number: 555 Event number: 19860715/22 Date: 1986-07-15 GPS: 54.37700,-5.63000. Depth: 3.5 to 0.2 m. [ View map ]
Site Description: The transect was taken across the sedimentary area lying between Launches Little and Shark island. The lower shore sediment is fine sand (with small boulder outcrops scattered on the surface); the mid shore sediment is muddy sand, becoming muddier towards high water, while the upper shore is composed of muddy gravel and pebbles lying between Ascophyllum dominated sediment covered boulders. A clay layer lies under the transect. General collections were taken from the boulder areas at low and high water. There were large numbers of Arenicola and Lanice on the lower shore and the sediment surface was covered by dense mats of brown filamentous algae (with some Ulva (originally recorded as Enteromorpha) ) which became less common higher up the intertidal. The black layer was near the surface in the higher sites.
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