scholarly journals FIRST OCCURRENCE OF THE INVASIVE ALIEN SPECIES STREBLOSPIO GYNOBRANCHIATA (RICE & LEVIN, 1998) AND POLYDORA CORNUTA BOSC, 1802 (POLYCHAETA: SPIONIDAE) ON THE COAST OF ABKHAZIA (SUKHUM BAY, BLACK SEA)

2018 ◽  
Vol 18 ◽  
pp. 129-132
Author(s):  
Zhanna P. Selifonova ◽  
Levard M. Bartsits

This study reports the first occurrence of an alien spionid polychaetes Streblospio gynobranchiata (Rice & Levin, 1998) and Polydora cornuta Bosc, 1802, in the Abkhazian coast and new locality for distribution of the species in the Black Sea.

Geo&Bio ◽  
2019 ◽  
Vol 2019 (17) ◽  
pp. 48-61
Author(s):  
Dariya Korolesova ◽  
◽  
Yurii Moskalenko ◽  
Maria Nitochko ◽  
Zoya Selyunina ◽  
...  

2008 ◽  
Vol 9 (2) ◽  
pp. 119 ◽  
Author(s):  
N. SIMBOURA ◽  
K. SIGALA ◽  
E. VOUTSINAS ◽  
E. KALKAN

The present study reports on the occurrence of two specimens of the alien species Polydora cornutaBosc, 1802, in Elefsis Bay, the Saronikos Gulf (Aegean Sea, eastern Mediterranean). This is the firstrecord of this invasive alien species on the coast of Greece and the second report in the eastern MediterraneanSea after its first finding in Izmir Bay (on the Turkish Aegean coast). This finding enhances its distributionalpattern within the Mediterranean


2014 ◽  
Vol 48 (5) ◽  
pp. 457-466 ◽  
Author(s):  
V. V. Anistratenko ◽  
O. Yu. Anistratenko ◽  
I. A. Khaliman

Abstract Conchological Variability of Anadara inaequivalvis (Bivalvia, Arcidae) in the Black-Azov Sea Basin. Anistratenko, V. V., Anistratenko, O. Yu., Khaliman, I. A. - An alien species in the Black Sea and the Sea of Azov - Anadara inaequivalvis (Bruguiere, 1789) - was recently discovered to have a wide range of shell variability. From the investigated samples (over 900 valves) six basic types of the shell commissural opening were defined; they are not, however, discrete conditions. Th e presence of intermediate variants reveals a gradual (continuous) character of the shell variability and indicates that all the samples investigated belong to the same species. Th e variation of some other Anadara characteristics is also discussed, including: quantity and ornamentation of the ribs on the surface of the valves, quantity of chevrons on the ligament area, shape of the hinge plate and quantity of hinge teeth. A comparison of conchological characteristics of Anadara from the Black-Azov Sea Basin with A. inaequivalvis from southeast India shows that ranges and patterns of shell variability of Azov-Black Sea Anadara correspond to variability of A. inaequivalvis from this species type locality - Coromandel Coast of India.


2017 ◽  
pp. 5-14
Author(s):  
Blagovest Belev

Marine ecosystems are under increasing anthropogenic pressures from marine and terrestrial activities. Shipping forms a network that spans the globe and introduces many economically and environmentally harmful invasive species, including human diseases such as cholera. Ship traffic, the major cause of change in the open ocean, and its temporal evolution are still largely unknown. Since the 1960s the Black Sea has undergone dramatic environmental changes. These changes are considered as result from a complex interaction of different pressures, the most important being eutrophication, overfishing and introduction of alien species. Some nations, and the International Maritime Organization, are moving towards requirements for managing ballast water to reduce the number of alien species transported and released.


Author(s):  
Marian-Traian Gomoiu ◽  
Boris Alexandrov ◽  
Nickolai Shadrin ◽  
Yuvenaly Zaitsev

2021 ◽  
Vol 14 (4) ◽  
pp. 157-177
Author(s):  
N. N. Shalovenkov

The number of alien species in the zoobenthos of the Black Sea increased up to 65 species. Depending on the scale of their distribution in the Black Sea, non-native zoobenthos species are combined into three groups: 1) 5 species have spread in the entire sea, 2) 35 species were found in several areas, and 3) 25 species were found only in one of the areas of the sea. Six areas of the Black Sea shelf have been identified (Varna - Burgas, Danube, Northwestern, Crimean, Caucasian and Anatolian) in accordance with the seasonal and annual values of the thermohaline characteristics. The zoobenthos differed not only in quantity, but also in the composition of non-native species between the six areas of the shelf. The results of multivariate statistical analysis revealed a low level of similarity between these areas of the Black Sea shelf. The greatest similarity in the composition of alien species of zoobenthos was observed for the Danube region with the Varna and Burgas bays, which border each other. The species composition of the alien species of the Caucasian shelf was more similar to the Varna - Burgas and Danube areas than to the neighboring Crimean and Anatolian areas. Spatial gradients of temperature and salinity form hydrological fronts of water masses, which are a kind of ecological barriers and can limit the natural exchange of alien species between shelf areas.


Geo&Bio ◽  
2019 ◽  
Vol 2019 (17) ◽  
pp. 48-61
Author(s):  
Dariya Korolesova ◽  
◽  
Yurii Moskalenko ◽  
Maria Nitochko ◽  
Zoya Selyunina ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document