ANALYSIS OF THE RESULTS OF THE PACIFIC OYSTER CULTIVATION IN THE BLACK SEA

2021 ◽  
pp. 54-65
Author(s):  
Galina Viktorovna Kozlova ◽  
Daria Nikolaevna Lenkova
Keyword(s):  
Black Sea ◽  
Pacific Oyster ◽  
The Black Sea ◽  
The Pacific ◽  
Oyster Cultivation

Mitochondrial DNA Barcoding of the Pacific Oyster Crassostrea gigas (Thunberg, 1793) (Mollusca: Bivalvia: Ostreidae), Cultivated in the Black Sea

2018 ◽  
Vol 54 (12) ◽  
pp. 1445-1451
Author(s):  
Yu. V. Slynko ◽  
E. E. Slynko ◽  
A. V. Pirkova ◽  
L. V. Ladygina ◽  
V. I. Ryabushko
Keyword(s):  
Mitochondrial Dna ◽  
Dna Barcoding ◽  
Black Sea ◽  
Crassostrea Gigas ◽  
Pacific Oyster ◽  
The Black Sea ◽  
The Pacific

scholarly journals Invasive species in the context of climate change: the case of Magallana Gigas (Thunberg, 1793) in the Black Sea

2021 ◽  
Author(s):  
Ana-Maria Krapa ◽  
◽  
Elena Buhaciuc-Ionita ◽  
Marian Ionita ◽  
Elena Iulia Iorgu ◽  
...  
Keyword(s):  
Climate Change ◽  
Invasive Species ◽  
Black Sea ◽  
Species Distribution ◽  
Climate Changes ◽  
Pacific Oyster ◽  
Current Situation ◽  
The Black Sea ◽  
Current Climate ◽  
The Pacific

The current climate changes are having a significant impact on species distribution. While some species are affected, others are thriving in these new conditions, expanding their range. This is also the case of some invasive species who seem to benefit from these changes. The invasive Pacific oyster Magallana gigas is among these species. The current situation of the Pacific oyster in the Black Sea is discussed, with new data from the Romanian waters.

scholarly journals Wild Pacific oyster Magallana gigas (Thunberg, 1793) populations in Romanian Black Sea waters – friend or foe?

2019 ◽  
Vol 62 (2) ◽  
pp. 175-183
Author(s):  
Ana-Maria Krapal ◽  
Marin Ioniță ◽  
Mihaela Caplan ◽  
Elena Buhaciuc-Ioniță
Keyword(s):  
Dna Barcoding ◽  
Black Sea ◽  
Pacific Oyster ◽  
Small Population ◽  
The Black Sea ◽  
Morphological Identification ◽  
Oyster Population

A relatively small population of Magallana gigas was discovered near the Agigea harbor (Constanța, Romania) in 2017. The DNA barcoding method was used to confirm the morphological identification of the species. We consider this colony to be the first instance of a possibly stable Pacific oyster population in the Black Sea, outside of farming activities. The possible impact on native ecosystems is briefly discussed.

scholarly journals Study of fouling communities succession under conditions of the device of controlled water flow

2021 ◽  
Vol 6 (1) ◽  
pp. 17-33
Author(s):  
А. Ю. Звягинцев ◽  
С. И. Масленников ◽  
А. К. Цветников ◽  
А. А. Бегун ◽  
Н. И. Григорьева
Keyword(s):  
Black Sea ◽  
Larval Settlement ◽  
The Black Sea ◽  
Bivalve Molluscs ◽  
Fouling Communities ◽  
The Caucasus ◽  
Development Cycle ◽  
The Pacific ◽  
Shell Damage ◽  
Study Species

The number of mollusc farms off the coast of Crimea and the Caucasus has increased significantly in recent years. The cultivation of the Pacific oyster Crassostrea gigas (Thunberg, 1793) requires monitoring of mollusc health and parasitological control of mariculture farms. The aim of this work was to study species composition of epibionts and endobionts, associated with shells of cultivated oyster C. gigas, as well as to identify species, damaging shells. Commercial oysters with visual shell damage were collected on a mariculture farm in the Donuzlav Bay (Crimea, the Black Sea) and brought to the laboratory alive chilled. As a result of 22 oysters’ examination, 14 macrozoobenthos species and live specimens of rock-boring mollusc Petricola lithophaga (Retzius, 1788) were found. The size of rock-borers varied 9 to 16 mm; their age was about two years. Prolonged presence of P. lithophaga inside oyster valves can cause degradation of shell calcareous layer and even death of the mollusc host; this fact is of great importance for the Black Sea mariculture. Considering P. lithophaga annual development cycle, during the period of mass larval settlement (July to October), it is recommended to inspect the shells of cultivated oysters. Further detailed studies will allow to develop measures for prevention and protection of bivalve molluscs from infestation with P. lithophaga.

scholarly journals On the Neoechinorhynchus agilis (Acanthocephala: Neoechinorhynchidae) complex, with a description of Neoechinorhynchus ponticus n. sp. from Chelon auratus in the Black Sea

Parasite ◽  
2020 ◽  
Vol 27 ◽  
pp. 48 ◽  
Author(s):  
Omar M. Amin ◽  
Meysam Sharifdini ◽  
Richard A. Heckmann ◽  
Nataliya Rubtsova ◽  
Halima Jmii Chine
Keyword(s):  
Black Sea ◽  
Mineral Content ◽  
Sensu Stricto ◽  
The Black Sea ◽  
The Sea Of Japan ◽  
Saltwater Fish ◽  
The Pacific ◽  
The Pacific Ocean ◽  
The Mediterranean ◽  
The Persian Gulf

We recognize four species in the Neoechinorhynchus agilis complex. We studied specimens of Neoechinorhynchus (Hebesoma) personatus Tkach, Sarabeev & Shvetsova, 2014 from Mugil cephalus in the Mediterranean Sea off Tunisia and in the Black Sea, and also specimens of Neoechinorhynchus ponticus n. sp. from Chelon auratus Risso in the Black Sea. Specimens from M. cephalus at both locations were similar. All structures of N. ponticus n. sp. were considerably smaller than those of N. personatus. Two other species of the N. agilis complex are recognized: Neoechinorhynchus agilis (Rudolphi, 1819) sensu stricto from various hosts in the Atlantic and the Mediterranean, and Neoechinorhynchus yamagutii Tkach, Sarabeev & Shvetsova, 2014 from M. cephalus and Planiliza haematocheila in the Pacific, especially the Sea of Japan. Neoechinorhynchus dimorphospinus Amin & Sey, 1996 from marine fish in the Persian Gulf and the Pacific Ocean off Vietnam may be a candidate for membership in the N. agilis complex. X-ray scans of gallium cut and intact hooks of N. personatus and N. ponticus showed differences in the mineral content of hooks with higher sulfur levels in smaller hooks and in hooks from specimens in the Black Sea compared to specimens from the Mediterranean. The relatively high genetic differences between N. ponticus n. sp. and other species of Neoechinorhynchus using a partial 18S rDNA dataset support its independent status. Neoechinorhynchus ponticus n. sp. and N. personatus have a common ancestor with species of Neoechinorhynchus collected from saltwater fish.

Introduction

2020 ◽  
pp. 1-4
Author(s):  
Martine Robbeets ◽  
Alexander Savelyev
Keyword(s):  
Black Sea ◽  
Current Understanding ◽  
The Black Sea ◽  
The West ◽  
Large Group ◽  
The Pacific ◽  
Turkic Languages ◽  
Areal Linguistics ◽  
The Baltic ◽  
Traditional Term

The Transeurasian languages are among the most fervently debated language families in modern linguistics, their data contributing extensively to our current understanding of how genealogical and areal linguistics can complement each other as twin faces of diachronic linguistics. The term “Transeurasian” refers to a large group of geographically adjacent languages, stretching from the Pacific in the East to the Baltic, the Black Sea, and the Mediterranean in the West, that includes up to five uncontroversial linguistic families: Japonic, Koreanic, Tungusic, Mongolic, and Turkic. It is distinguished from the more traditional term “Altaic,” which we here reserve for the linguistic grouping consisting of Tungusic, Mongolic, and Turkic languages only. Figure 1 displays the distribution of the Transeurasian languages....

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