Document of bibliographic reference 404430

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Characterization of mollusca taxocene in Chlorophyta algae along the coast of the Crimea

Abstract

The distribution of mollusks in the epiphyton of some green algaes (Cladophora sp., Chetomorpha sp., Ulva intestinalis, U. rigida and Ulva sp., and in the associations: Ulva sp. + Cladophora sp., Ulva sp. + Chetomorpha sp., Cladophora sp. + Chetomorpha sp., Cladophora sp. + U. linza, Cladophora sp. + U. linza + U. rigida) off the Azov-Black Sea coast of Crimea from Donzulav Gulf to Kazantip was shown. A total of 20 species belonging to Bivalvia (7 species) and Gastropoda (13 species) were recorded in the period 2001-2023 years. Many species (bivalvies Abra nitida, A. segmentum, Cerastoderma glaucum, Lentidium mediterraneum, gastropods Hydrobia acuta, Parthenina interstincta, Setia valvatoides and Theodoxus major) were recorded for the first time in epiphyton of Chlorophyta, becasuse this biotope under-researched. The maximum number of species (14) was found in the mouth of the Chernaya River. The average abundance along the Crimean coast was from 55 ind./kg in the water area in Karadag to 4936 ind./kg in the area of Kazantip, averaging over Crimea 2539±148 ind./kg. The average biomass of Mollusca varied from 0.05 g/kg on Karadag to 138.1 g/kg on Kazantip, with the Crimean average 23.1±1.7 g/kg. Gastropods H. acuta dominated in abundance, but Bivalvia Mytilaster lineatus – in biomass. Trophic affiliation included 7 groups. Phytophagous species were predominanted in terms of number of species (6 or 32 %). Phytophagous species were represented by molluscs from the family Rissoidae, as well as Tricolia pullus. Detritophagous dominated in terms of abundance (1520 ind./kg or 57 %). According to this indicator, H. acuta clearly prevailed among detritophages (almost 100 %) and only less than 1 % were molluscs of the genus Abra. Sestonophagous were prevaled in terms of biomass (17,4 g/kg or 76 %). The sestonophagous species include bivalve filter-feeding mollusks. Among them, M. lineatus was clearly (99 %) predominanted, especially on Kazantip. In comparative aspect, the mean abundance and mean biomass of Mollusca was higher on algae Cladophora sp., than on Ulva intestinalis. On abundance, on both algaes, but especially in Ulva sp., were dominated (88 %) H. acuta. On biomass, on Cladophora sp. was dominated Bittium reticulatum due to its relatively large size, but on Ulva sp. was dominated H. acuta.

Bibliographic citation

Makarov, M.V. (2024). Characterization of mollusca taxocene in Chlorophyta algae along the coast of the Crimea. Ученые записки Крымского федерального университета имени В.И. Вернадского. Биология. Химия 10(76): 116-127. https://dx.doi.org/10.29039/2413-1725-2024-10-2-116-127

Is peer reviewed

true

Access rights

open access

Is accessible for free

true