Subtidal underwater rock communities of the White Sea: Structure and interaction with bottom flow

Abstract

On page 337, the third and fifth legends in Figure 2 should read Laminaria saccharina , Polymastia arctica , respectively. On page 339, the first column of Table 1 row 6 should read Ahnfeltia plicata row 7 should read Corallina sp. row 8 should read Lithothamnion sp. row 19 should read Pigospio elegans row 26 should read Hiatella arctica row 27 should read Mytilus edulis row 30 should read Margarites groenlandicus row 36 should read Asterias rubens row 40 should read Molgula sp. In the second column of Table 1 row 6 should read Rhodophyta row 40 should read Ascidiacea On page 340, the first column of Table 2 row 4 should read Polysiphonia nigrescens row 5 should read Rhodophyta gen. sp. row 6 should read Rhodophyllus sp. row 15 should read Leucosolenia complicata row 18 should read Lucernaria quadricornis row 24 should read Shizoporella limbata row 27 should read Hiatella arctica row 29 should read Nicania montagui row 30 should read Margarites groenlandicus row 31 should read Testudinalia tesselata row 38 should read Ophiura robusta In the second column of Table 2 row 2 should read Rhodophyta row 39 should read Ascidiacea ERRATA

Comparative efficiency of Mytilus edulis as engineering species for shallow-water fouling communities on artificial structures in the White Sea

“…A methodological advantage of this biological model is that different communities within one mussel farm are being formed and exist under similar environmental conditions and on the same type of substrate, with the substrates being exposed in the sea over the same period of time. In our opinion, it seems more correct to compare the ‘efficiency’ of various engineering species in such standardized conditions than in natural bottom communities, where the compared species usually occupy different locations, substrates and depths (Golikov et al ., 1985; Oshurkov, 1992; Plotkin et al ., 2005). In addition, the lifespan of natural populations of these species is unknown.…”

Polymastiidae (Porifera: Demospongiae) of the Nordic and Siberian Seas

“…Despite the polymastiids never reaching such large sizes as, for example, the astrophorid species do , they are subdominants of shallowwater hard bottom communities in some Norwegian fjords (Svensen, personal communication), in the White Sea (Plotkin et al, 2005) and Laptev Sea (Golikov et al, 1990). In the deep waters common polymastiids such as Tentorium semisuberites (Schmidt, 1870) and Radiella spp.…”