Microphallids in Gammarus insensibilis Stock, 1966 from a Black Sea lagoon: manipulation hypothesis going East?

Parasitology ◽  
2005 ◽  
Vol 131 (3) ◽  
pp. 337-346 ◽  
Author(s):  
A. KOSTADINOVA ◽  
R. S. MAVRODIEVA
Keyword(s):  
Black Sea ◽  
Parasite Load ◽  
Mediterranean Coast ◽  
The Other ◽  
Bird Diversity ◽  
The Black Sea ◽  
Interspecific Associations ◽  
Concurrent Infections ◽  
Infection Parameters ◽  
Host Parasite

Patterns of parasite site selection, variation in infection parameters and interspecific associations are examined in the light of new field data on larval microphallids in Gammarus insensibilis from a Black Sea lagoon. These patterns are discussed in relation to the predictions for the manipulative effect of Microphallus papillorobustus and its relationships with the other microphallid species based on studies on the French Mediterranean coast. Four species were recovered: Maritrema subdolum, Microphallus hoffmanni, M. papillorobustus and Levinseniella propinqua. The latter two were located in both corporal and cephalic segments, but the selection of brain appeared stronger for L. propinqua. M. subdolum was the first colonizer of amphipod population recruits, and unequivocally the dominant species in the lagoon. There was a significant positive relationship between the parasite load of all 4 species. Concurrent infections were exceedingly frequent, and no departures from random association were detected. We found no evidence that the cerebral metacercariae of M. papillorobustus consistently predict the parasite load of any of the other species in the system and identify sources for heterogeneity that may account for the differences between the Black Sea and the Mediterranean system: habitat heterogeneity, bird diversity and host-parasite systems used to infer relationships between microphallids.

Grillotia erinaceus (van Beneden, 1858) (Cestoda:Trypanorhyncha) from whiting in the Black Sea, with observations on seasonality and host-parasite interrelationship

2014 ◽  
Vol 59 (3) ◽  
Author(s):  
Ahmet Özer ◽  
Türkay Öztürk ◽  
Vadim Kornyushin ◽  
Yulia Kornyychuk ◽  
Violetta Yurakhno
Keyword(s):  
Black Sea ◽  
Infected Fish ◽  
The Black Sea ◽  
Commercial Fishing ◽  
Infection Prevalence ◽  
Mean Intensity ◽  
Fishing Vessels ◽  
Infection Parameters ◽  
Host Parasite ◽  
Grillotia Erinaceus

AbstractThe genus Grillotia Guiart, 1927 is cosmopolitan in its distribution and the type-species, G. erinaceus (van Beneden, 1858), has been relatively well studied. However, this study provides infection indices of Grillotia erinaceus from southern and northern Black Sea whiting Merlangius merlangus for the first time. The specimens of Grillotia erinaceus were obtained from subserosa of the anterior oesophagus, stomach, pyloric caeca, liver, ovaries and mesenterium of whiting caught by commercial fishing vessels off Sinop, Turkey and off Balaklava, Ukraine. Fish were examined during the period from May 2011 to April 2012. Prevalence and mean intensity values in 268 fish collected off Sinop in the Black Sea were 18.66% and 1.82 ± 0.16 parasites per infected fish, respectively. In Ukrainian 166 whiting samples collected off Balaklava in the Black Sea, however, G. erinaceus plerocercus infection prevalence was 10.24% and mean intensity 1.71 ± 0.75 parasites per infected fish. Infection parameters were also determined at both sampling sites in relation with host length, sex and season.

Settlement of early Byzantine time at the Kyz-Aul necropolis

2018 ◽  
Author(s):  
Н.Ф. Федосеев ◽  
Л.Ю. Пономарев
Keyword(s):  
Black Sea ◽  
The Other ◽  
The Black Sea ◽  
Living Room ◽  
The South ◽  
Kerch Peninsula ◽  
Black Sea Coast ◽  
The Village ◽  
Sea Coast ◽  
Early Byzantine

Necropolis Kyz-Aul is located on the Black Sea coast, 1 km to the south-east of the village. Yakovenkovo. In 1930, 1979–1983, 1985, 1995, 1997, 2000, 2005–2006, 2015–2017, he was investigated by Yu. Martti, O. Chevelev, N. Sudarev and N. Fedoseev. Separate burials date back to the II–I BC, the burial of the I–III AD the most recent burials, apparently, were committed in the IV–V AD. In the VI – third quarter of the VII century AD on the territory of the already abandoned necropolis, a small settlement was located. Its cultural stratum is traced on all sites that have been followed in the last decade. As living quarters, the looted crypts of the 1st–3rd centuries AD were adapted, consisting of one or two funerary cells and built of massive blocks of limestone (№ 6, 7, 9, 10). With exception of the crypts of the poorly preserved pit of the semidugout (?) other residential and household buildings on the necropolis could not be fixed. One child burial also belongs to the same period. The most well-preserved living room in the crypt number 6. In one of its funerary cells housed five household pits and heating devices, including a fireplace, reminiscent of the design of the fireplace. In the other crypts, the interior details of the “underground” dwellings have not been preserved. In the “Khazar” time burial chamber crypts were adapted for the maintenance of small cattle. The time of the early Byzantine settlement on the necropolis dates numerous finds of amphorae. The upper date was determined thanks to the coin of 674 Constantine IV Pogonat. In addition, a ring with the image of an archangel was found, an analogy of which is known in the burial complexes of the 7th century. Unfortunately, the area and location of the necropolis of this settlement is not yet established. Cannot be reconstructed and its layout. It is difficult to reconstruct the interior of the “underground” dwellings themselves, since the crypts were reused in the “Khazar” period. In addition, no other settlements of this time were found on the ancient necropolises of the Kerch Peninsula

Benthic community structure of the Bosphorus and surrounding area

2002 ◽  
Vol 46 (8) ◽  
pp. 37-44 ◽  
Author(s):  
A. Uysal ◽  
A. Yüksek ◽  
E. Okuş ◽  
N. Yilmaz
Keyword(s):  
Black Sea ◽  
Dominant Species ◽  
Lower Layer ◽  
Current System ◽  
Temporal Distribution ◽  
Wide Distribution ◽  
The Other ◽  
The Black Sea ◽  
Sea Of Marmara ◽  
Other Hand

Spatial and temporal distribution of benthic communities around the Strait of Istanbul (Bosphorus) and the effect of lower layer discharge on these communities have been evaluated during studies between FebruaryÐDecember 1999. Mytilus galloprovincialis was the dominant species with fasies at the Black Sea station that is not affected by the strait lower layer current system. On the other hand, another Black Sea station, influenced by the strait lower layer currents, has a similar biota to the strait stations. Species richness and diversity is highest in the strait than other areas. The dominant species is Maera grossimana. However, the station located at the Black Sea exit of the strait has a different biota, and various groups/species appeared to be dominant. Melinna palmata is the dominant species at the Sea of Marmara during the study period. Low dissolved oxygen values of lower layer and soft substratum of sediment resulted in wide distribution of Melinna palmata, adapted to these conditions. The closer stations to the strait in the Sea of Marmara have higher diversity as a result of hydrodynamic processes. On the other hand, coastal stations with low currents and inputs have lower index values, showing the negative effect of discharges and pollution.

Solon's ‘Price-Equalisation’

1960 ◽  
Vol 80 ◽  
pp. 181-190
Author(s):  
K. H. Waters
Keyword(s):  
Soil Fertility ◽  
Black Sea ◽  
Economic Reforms ◽  
The Other ◽  
High Price ◽  
The Black Sea ◽  
The City

In his article entitled ‘Solon and the Megarian Question’ (JHSlxxvii) Mr A. French has given a valuable exposition of Solon's economic reforms in their relation to the strategic necessities of Athenian overseas trade. This, however, leads him to an assessment of the statesman's policy which it is rather difficult to accept, conflicting as it does both with tradition and the general probabilities of the situation. Further, it is partly based on an interpretation of a passage in Plutarch which is, I think, mistaken and indeed impossible, although it has been adopted by most authorities. Mr French's argument may be summarised as follows:(1) In the pre-Solonian era the sea route to South Attica and Phaleron, still more to Mounychia, was dominated by a hostile Megara owing to her control of Salamis; hence only the ports of East Attica were available for overseas trade in bulk cargoes. Early imports of grain and timber would have been from Thessaly, for which these ports were particularly convenient.(2) However, increasing population and the decline in soil fertility made it desirable to import wheat in large quantities from the Black Sea; this would necessitate delivery at a port nearer the city and therefore control of Salamis to prevent Megarian interference on top of the other considerable hazards of the Black Sea voyage. It would also necessitate a high price which, though in accordance with the internal agricultural conditions, would diminish the advantages of the additional external supplies to the impoverished population of Attica. The Athenian government must either embark on a naval programme, and fight Megara for Salamis, or use less grain, which meant limiting the population.

Tornado Climatology of Turkey

2014 ◽  
Vol 142 (6) ◽  
pp. 2345-2352 ◽  
Author(s):  
Abdullah Kahraman ◽  
Paul M. Markowski
Keyword(s):  
Black Sea ◽  
Mediterranean Coast ◽  
Severe Weather ◽  
The Black Sea ◽  
Northern Coast ◽  
Secondary Maximum ◽  
Early Evening ◽  
Southern Mediterranean ◽  
Internet Searches ◽  
Turkish State

Abstract A climatology of tornadoes in Turkey is presented using records from a wide variety of sources (e.g., the Turkish State Meteorological Service, European Severe Weather Database, newspaper archives, Internet searches, etc.). The climatology includes the annual, diurnal, geographical, and intensity distributions of both mesocyclonic and nonmesocyclonic tornadoes. From 1818 to 2013, 385 tornado cases were obtained. The tornadoes range from F0 to F3, with F1 being the most frequently reported or inferred intensity. Mesocyclonic tornadoes are most likely in May and June, and a secondary maximum in frequency is present in October and November. Nonmesocyclonic tornadoes (waterspouts) are most common in the winter along the (southern) Mediterranean coast and in the fall along the Black Sea (northern) coast. Tornadoes (both mesocyclonic and nonmesocyclonic) are most likely in the afternoon and early evening hours.

High genetic connectivity among morphologically differentiated populations of the black sea urchin Arbacia lixula (Echinoidea: Arbacioida) across the central African Mediterranean coast

2017 ◽  
Vol 49 (2) ◽  
pp. 603-620 ◽  
Author(s):  
Temim Deli ◽  
Ahmed Ben Mohamed ◽  
Mohamed Hbib Ben Attia ◽  
Rym Zitari-Chatti ◽  
Khaled Said ◽  
...  
Keyword(s):  
Sea Urchin ◽  
Black Sea ◽  
Mediterranean Coast ◽  
Genetic Connectivity ◽  
The Black Sea ◽  
Arbacia Lixula

Northern Anatolia before Classical Times

1956 ◽  
Vol 6 ◽  
pp. 179-203 ◽  
Author(s):  
C. A. Burney
Keyword(s):  
Bronze Age ◽  
Black Sea ◽  
Mediterranean Coast ◽  
Deciduous Forests ◽  
The Black Sea ◽  
Anatolian Plateau ◽  
North Side ◽  
Maritime Climate ◽  
The Bronze Age ◽  
Eastern Half

That part of northern Anatolia known in Greek and Roman times as Bithynia and Paphlagonia comprises a number of high ridges running from west to east, through which the rivers break their way in their tortuous courses down to the Black Sea. The region discussed in this article in fact comprises Paphlagonia, the eastern half of Bithynia and part of Phrygia, from the lower Sakarya to the mouth of the Halys; but, since these names do not apply to the Bronze Age, the whole will be termed northern Anatolia. As far south as the crest of the main ridge bounding the Anatolian plateau along its north side the land has a maritime climate quite different from that of either the plateau or the Mediterranean coast: rainfall is abundant, even at times in the summer; deciduous forests cover these north-facing slopes, right to the top. Sinop provides the best natural harbour on this coast. The change to the steppe country of the plateau is abrupt.

scholarly journals Transboundary Environmental Damages in the Black Sea Basin and Regional Liability Regime

2013 ◽  
Author(s):  
Arda Özkan
Keyword(s):  
Black Sea ◽  
Environmental Problems ◽  
Environmental Security ◽  
The Other ◽  
The Black Sea ◽  
Environmental Damage ◽  
Security Risks ◽  
Environmental Damages ◽  
Security Problem

The Black Sea is a significant basin where transboundary environmental damage activities take place. The environmental problems in the Black Sea are not only on the agenda of six Black Sea littorals, but also the states in the wider Black Sea basin. The large scales of strategic, economical and political problems in the region require entrepreneurship and co operations of the other states on the same platform. This study has two main environmental security dimensions: One of them is identifying the damages and opponents; the other one is the security problem in transboundary environment and the responsibilities of the Black Sea states. In this regard, this study aims to initiate a conversation in precautions against transboundary environmental damages considering the current security risks.

scholarly journals First survey of shallow-water Amphipoda along the Georgian Black Sea coast reveals new faunistic records and the unexpected Atlantic invader Melita nitida

2020 ◽  
Author(s):  
DENIS COPILAȘ-CIOCIANU ◽  
GAVRIL MARIUS BERCHI ◽  
LEVAN MUMLADZE
Keyword(s):  
Shallow Water ◽  
New Taxa ◽  
Black Sea ◽  
First Record ◽  
The Other ◽  
The Black Sea ◽  
Number Of Species ◽  
Black Sea Coast ◽  
Cryptic Invasions ◽  
Sea Coast

We present findings from the first survey of shallow-water amphipods conducted along the Black Sea coast in Georgia. Eight species from five families have been identified, all but one being new for the Georgian fauna. Although most are usual inhabitants of the Black and Mediterranean seas, we report the first record of the invader Melita nitida in this region. This North American species was previously known in Europe only from the Atlantic and Baltic coasts. Its finding in the Black Sea implies either jump dispersal, or a more widespread, but cryptic distribution. Given that the total number of species reported in Georgia is lower than in the other countries neighbouring the Black Sea, we anticipate the discovery of new taxa in future surveys. Our study highlights the importance of faunistic exploration in previously overlooked regions for detecting potentially cryptic invasions and corroborating biogeographical patterns.

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