Back to dataset

Species point records from 1982 Lumb Menai Strait sublittoral survey1982-Lumb-Menai-Strait-sublittoral-survey.csv

You're previewing the first 3 rows of this file.

Download this file
RecordKey SurveyKey SurveyName SampleKey StartDate EndDate DateType LocationName DataType Latitude Longitude Projection AphiaId Species Uncertain Abundance_SACFORN Abundance_Count IsDead SampleComment
JNCCMNCR10250586 JNCCMNCR10000293 1982 Lumb Menai Strait sublittoral survey JNCCMNCR10010703 1982-04-10 1982-09-19 DD Ynys Faelog (Menai Straits) Point 53.2264117258195 -4.15706619197615 WGS84 107398 Necora puber FALSE C Not set FALSE L. digitata, L. hyperborea and large L. saccharina plants, with H. siliquosa, were present down to 1.5m. Red algae, including G. flosculosa, G. corallinoides, C. ramosa and P. cartilagineum were found down to 2.5m. The large boulders were dominated by F. folicea, A. digitatum, erect hydroids and bryozoa, including N. ramosa, H. halecinum and Bugula spp., by H. panicea and T. indivisa or by H. oculata. Often the individual boulders were completely covered by a stand of just one or two species. The smaller boulders provided a variety of microhabitats and C. pagurus, L. puber, G. squamifera and P. gunnellus were frequent or common. On this substrate, where there was a thin silt cover, H. bowerbanki formed an extensive network of anastomosing branches. The sediment fauna included C. lloydii, locally abundant, Sagartia sp., S. pavonina, C. pedunculatus and U. felina. The site showed some similarities to Pwllfanog and was rich faunistically.
JNCCMNCR10250895 JNCCMNCR10000293 1982 Lumb Menai Strait sublittoral survey JNCCMNCR10010715 1982-04-11 1982-04-11 D George Hostel to Menai Bridge Pier (Menai Straits) Point 53.2236898198499 -4.15842732359863 WGS84 107398 Necora puber FALSE O Not set FALSE On the south shore there was a narrow band of L. digitata and L. saccharina down to 1m. Red algae were present down to 1.5m, but this region was sponge-dominated with both encrusting H. panicea and H. oculata common or abundant. A. digitatum and T. indivisa were frequent where tidal streams were strongest. No F. foliacea was recorded in shallow water but boulders covered in the species were found near the bed of the channel. There was an increase in polyclinid ascidians on the boulders in deeper water. U. felina, C. lloydii and S. pavonina were common in the finer sediment. No sponge growth was recorded on the Anglesey side of the transect. Erect hydroids and bryozoans were dominant and A. digitatum and F. foliacea were common. In shallow water C. maenas was abundant. Gyres are produced on the north side of the channel during the flood tide and on both sides during the ebb.
JNCCMNCR10251211 JNCCMNCR10000293 1982 Lumb Menai Strait sublittoral survey JNCCMNCR10010732 1982-04-16 1982-04-16 D Menai Suspension Bridge (Menai Straits) Point 53.2191169835271 -4.16269062980655 WGS84 107398 Necora puber FALSE O Not set FALSE There was a narrow Laminaria zone, but it did not extend below 0m. Large areas of rock covered in B. crenatus scars were present in shallow water, and on the scoured bed of the channel. The dominant cover on the profile was H. panicea, with a thin encrusting cover in shallow and deep water, and a massive form present on the steep rock slope. A. fucorum was common initially but became less so with increasing depth. U. felina was common in the pockets of shell gravel. F. foliacea was not observed at this site.