Macroalgal Fouling of Shells of &lt;i&gt;Rapana venosa&lt;/i&gt; (Valenciennes, 1846) (Gastropoda, Muricidae) in the Northern Black Sea

Bondarev, Igor P.; Milchakova, Nataliya

doi:10.5376/ijms.2018.08.0015

Cited by 6 publications

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“…Из семи обследованных нами районов балянусы не были обнаружены только в двух (1 -Мамайя, Румыния; 2 -северо-западная часть Чёрного моря, Крымский сектор). В этих районах зарегистрировано минимальное количество эпибионтов и эпифитов рапаны [3,4,5,16]. На песчаной рапане в районах 3 (г. Севастополь) и 7 (г. Керчь) частота встречаемости балянусов составляла 40 и 35 % соответственно, а площадь покрытия достигала 40 % (рис.…”

Section: материал и методыunclassified

“…В состав эпифитона членистоногие входят как одна из основных систематических групп беспозвоночных [13]. На современном этапе исследований выявлено 65 видов макроводорослей -обрастателей рапаны; плотность их покрытия может достигать 100 % поверхности раковины [16]. Ранее показано, что обилие водорослей и беспозвоночных вдоль градиента глубин в значительной мере определяется динамическими характеристиками водной среды [3,4,5,16].…”

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“…На современном этапе исследований выявлено 65 видов макроводорослей -обрастателей рапаны; плотность их покрытия может достигать 100 % поверхности раковины [16]. Ранее показано, что обилие водорослей и беспозвоночных вдоль градиента глубин в значительной мере определяется динамическими характеристиками водной среды [3,4,5,16]. Установлено, что наибольшее видовое разнообразие водорослей и максимальная степень покрытия ими раковин присущи песчаной рапане.…”

unclassified

“…Установлено, что наибольшее видовое разнообразие водорослей и максимальная степень покрытия ими раковин присущи песчаной рапане. На ней обнаружены 65 видов макроводорослей, а на скальной рапане -только 21 [16].…”

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“…Этот же фактор лимитирует возможность удерживания взрослых особей на водорослях-обрастателях и на раковине рапаны. Динамическое воздействие водной среды и минеральной взвеси частиц грунта -главный фактор, определяющий различие в таксономическом составе двух основных экологических разновидностей R. venosa -песчаной и скальной [3,4,5,16].…”

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Консорты брюхоногого моллюска Rapana venosa (Valenciennes, 1846) в северной части Чёрного моря. Часть IV: Arthropoda

Bondarev

Bondarenko

2019

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This article containing information about study of the taxocene Arthropoda is a continuation of the cycle describing the composition of the consortium of the invasive gastropod mollusk Rapana venosa (Valenciennes, 1846). The consortium of R. venosa is still an unaccounted component in the biocenosis structure of the Black Sea shelf. The material used and the research methods are discussed in detail in previous articles of the cycle. The purpose of this work is to describe the complex of epibiontic organisms and to compile an annotated list of Arthropoda taxa of the consortium of R. venosa. The 27 species of phylum Arthropoda found in the consortium belong to two subphyla: Chelicerata (class Arachnida) and Crustacea (classes Malacostraca and Hexanauplia). The only representative of the arachnids class (Arachnida; Acari) – Rhombognathus notops (Gosse, 1855) – was found just twice (in a single specimen in samplings of 2016 and 2017). The shell of R. venosa serves as a substrate for the development of a variety of algae – favorable habitat for the epiphyton, which causes a high number and diversity of crustaceans in this biotope. The greatest taxonomic diversity was noted for the Malacostraca class – 25 species belonging to 22 genera of 19 families. Arthropods are represented in consortium of R. venosa by two main ecological groups – sedentary and mobile epibionts. The largest species diversity of Arthropoda is inherent in free-living mobile forms (23 species). Sedentary forms, which inferior in number of species (4), dominate by quantity (86 %) and biomass (94 %). The only representative of Cirripedia – Amphibalanus improvisus (Darwin, 1854) – is the most common (53 % of the total quantity) and massive crustacean, which contributes the most significant amount to the biomass (91.8 %) of Arthropoda in the consortium. More than 50 % of the Arthropoda species in the consortium are polyphages; phytophages are 20 %; detritophages are 28 % of the total number of arthropod species. The only adult specimen of fish ectoparasites is the isopod Elaphognathia bacescoi (Kussakin, 1969) found in a consortium of sandy rapa-whelk at a depth of 8 m in the Golubaya Bay of Sevastopol. All of the 27 species of Arthropoda found are present in the consortium of the sandy R. venosa, and only 3 species are noted on the rocky rapa-whelks. The differences in the composition of the consortium of the two ecomorphs of R. venosa are mainly due to the great development of the epiphytes and the reduced dynamics of the water masses in the sandy rapa-whelk habitats in Sevastopol region. Due to their taxonomic diversity, quantity and biomass, Arthropoda are an important element of the bottom biocenosis spatially and trophically associated with individuals of the largest gastropod of the Black Sea – R. venosa.

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Консорты брюхоногого моллюска Rapana venosa (Valenciennes, 1846) в северной части Чёрного моря. Часть IV: Arthropoda

Bondarev

Bondarenko

2019

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Features of Biocenotic Relations of Anadara kagoshimensis (Bivalvia, Arcidae) in the Kazachya Bay of the Black Sea

Bondarev

2020

Russ J Biol Invasions

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Консорты брюхоногого моллюска Rapana venosa (Valenciennes, 1846) в северной части Чёрного моря. Часть V: Annelida (Polychaeta)

Bondarev¹,

Болтачева²

2021

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The study of Annelida (Polychaeta) taxocene – epibionts of the invasive gastropod Rapana venosa – continues the cycle of publications describing the composition of the consortium of the largest gastropod of the Black Sea benthos. R. venosa consortium is still a poorly investigated and unaccounted component in the structure of the Black Sea shelf biocenoses. The aim of this work is to study the complex of polychaetes of R. venosa consortium. The objectives of this stage are as follows: compiling a list of Annelida (Polychaeta) taxa – rapa whelk epibionts; studying taxocene biogeographic and trophic structure; and analyzing ecological relationships of polychaetes with the consortium core. To study the consort community of rapa whelk, sampling was conducted in seven areas of the northern Black Sea: 1 – Mamaia, Romania; 2 – northwestern Black Sea, Crimea offshore; 3 – Sevastopol; 4 – Alupka; 5 – Yalta – Alushta; 6 – Karadag; 7 – Kerch Strait. In the coastal area down to a depth of 15 m, R. venosa was sampled totally using surface-supplied diving equipment; in the deeper-water area (up to 40 m), samples were taken with an “Ocean-50” bottom grab from the board of the RV “Professor Vodyanitsky”. Each rapa whelk specimen (sample) was placed in a separate plastic bag, with the indication of the area, depth, and biotope. In total, 2,411 samples were taken and analyzed: 977 – rock rapa whelks and 1434 – sand rapa whelks. R. venosa shell coverage with epibionts (fouling intensity) was determined as a percentage of the total area of the outer shell surface. Polychaeta taxocene of R. venosa consortium includes 31 species representing 31 genera of 15 families of 2 subclasses. Most species (18) belong to Errantia, and half of them are representatives of the families Nereididae and Syllidae. Sedentaria includes 13 species; by the largest number of species (4), the family Serpulidae is represented. Polychaeta taxocene of R. venosa consortium is represented by three biogeographic groups: native species of the Mediterranean-Atlantic genesis (84 %), the Black Sea endemics (10 %), and recent invaders of various geographical genesis (6 %). On sand rapa whelk, 31 Polychaeta species were found; on rock rapa whelk, only 5 species were recorded. The indicators of Polychaeta fauna development differ significantly by the depth and research area. The most diverse polychaetes are those in bays of Sevastopol (the area No. 3) at depths of 2–10 m; the maximum depth of Polychaeta finding (40 m) corresponds to the greatest depth of rapa whelk sampling. The area of shell coverage with polychaetes reaches 70 %; occurrence in several areas is up to 95 %. The maximum number of species found at a single rapa whelk specimen is 8; on average, 2–4 Polychaeta species are recorded at R. venosa individuals. Taxonomic diversity and abundance of polychaetes determine their significance in R. venosa consortium. Due to the invasive predatory mollusc R. venosa, polychaetes get additional opportunities for spread on the Black Sea shelf.

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Macroalgal Fouling of Shells of <i>Rapana venosa</i> (Valenciennes, 1846) (Gastropoda, Muricidae) in the Northern Black Sea

Cited by 6 publications

References 0 publications

Консорты брюхоногого моллюска Rapana venosa (Valenciennes, 1846) в северной части Чёрного моря. Часть IV: Arthropoda

Консорты брюхоногого моллюска Rapana venosa (Valenciennes, 1846) в северной части Чёрного моря. Часть IV: Arthropoda

Features of Biocenotic Relations of Anadara kagoshimensis (Bivalvia, Arcidae) in the Kazachya Bay of the Black Sea

Консорты брюхоногого моллюска Rapana venosa (Valenciennes, 1846) в северной части Чёрного моря. Часть V: Annelida (Polychaeta)

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