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.

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.

Seasonality and host–parasite interrelationship of Mytilus galloprovincialis parasites in Turkish Black Sea coasts

2015 ◽  
Vol 95 (8) ◽  
pp. 1591-1599 ◽  
Author(s):  
Ahmet Özer ◽  
Sevilay Güneydağ
Keyword(s):  
Black Sea ◽  
Mytilus Galloprovincialis ◽  
Parasite Species ◽  
Research Study ◽  
The Black Sea ◽  
Infection Prevalence ◽  
Biotic Factors ◽  
Polydora Ciliata ◽  
Host Parasite ◽  
Prevalent Species

This is the first comprehensive research study on the parasites of Mytilus galloprovincialis collected from the Sinop coasts of the Black Sea and their relationships with several environmental and biotic factors. A total of 1740 mussels were collected monthly at three sampling localities representing different ecosystems in the period between August 2012 and July 2013 and examined for parasites. Identified parasites were Nematopsis legeri, Peniculistoma mytili, Urastoma cyprinae, Parvatrema duboisi and Polydora ciliata. Infection prevalence (%), mean intensity and mean abundance values of each parasite species were calculated according to season, sampling localities and length classes of mussel. Nematopsis legeri was the most prevalent species (32.5%), followed by Pe. mytili (6.70%), U. cyprinae (6.30%), Pa. duboisi (4.50%) and Po. ciliata (2.20%). Nematopsis legeri and Parvatrema duboisi had their highest infection prevalence and intensity values in sampling locality III where secondary hosts present to complete their life cycle and larger sized mussels had higher parasite loads. Statistically significant differences were determined in the prevalence of infection and intensity values among seasons, length classes of mussel and sampling localities of each parasite species. The present study provided valuable information on mussel parasites and their relationships with host length, seasons and ecology.

scholarly journals Seasonality and host-parasite interrelationship of Hysterothylacium aduncum (Nematoda) in whiting Merlangius merlangus off the southern and northern coasts of the Black Sea

2016 ◽  
Vol 53 (3) ◽  
pp. 248-256 ◽  
Author(s):  
A. Özer ◽  
Y. M. Kornyychuk ◽  
V. Yurakhno ◽  
T. Öztürk
Keyword(s):  
Digestive Tract ◽  
Black Sea ◽  
Nematode Species ◽  
The Black Sea ◽  
Season Length ◽  
Mean Intensity ◽  
Merlangius Merlangus ◽  
Host Parasite ◽  
First Time ◽  
Hysterothylacium Aduncum

SummaryIn the present study, we investigated the comparative infection levels, ecology and host-parasite interrelationship of a nematodeHysterothylacium aduncum(Rudolphi, 1802) in whiting,Merlangius merlangus(L., 1758) in southern (Sinop) and northern (Balaklava Bay) coasts of the Black Sea for the first time. Fish were collected throughout a period from May 2011 to March 2014 from local fishermen. A total of 690 fish specimens near Sinop and 423 fish near Balaklava Bay were examined for parasites.Hysterothylacium aduncumwas the only nematode species identified in the digestive tract of the Black Sea whitingMerlangius merlangus. Prevalence of infection, mean intensity and mean abundance values were determined according to season, length classes and sex of fish at both localities. These infection indices were always higher in Sinop samples than those of Balaklava Bay samples.

scholarly journals New data on wild grey mullet (mugil cephalus linnaeus, 1758) myxosporean (myxobolus episquamalis egusa et al., 1990) in the black sea

2020 ◽  
Vol 175 ◽  
pp. 02014
Author(s):  
Anna Kazarnikova ◽  
Tatyana Strigakova ◽  
Evgeny Bortnikov ◽  
Ovkar Byadgi ◽  
Marco Galeotti ◽  
...  
Keyword(s):  
Black Sea ◽  
Infected Fish ◽  
Mugil Cephalus ◽  
Fish Mortality ◽  
The Black Sea ◽  
Grey Mullet ◽  
Frontal View ◽  
Universal Primer ◽  
Russian Waters ◽  
18S Rdna Gene

Flathead grey mullet, Mugil cephalus, with mass whitish cystlike plasmodia on their scales were collected at Kerchensky preglass of the Black Sea in 2015. The prevalence of infected fish varied from 15% in spring, reached 100% in summer, and declined to 2.5% in autumn. No fish mortality was detected. The spores were oval in frontal view, tapering to a blunt apex. Two unequal polar capsules were pyriform and extended over the anterior half of spore. Spores were 8.2±0.03 µm (7.9-8.4) long, 5.9±0.23 µm (5.2-7.3) wide, and 4.4±0.17 µm (4.0-4.7) thick. Two pyriform and unequal polar capsules were observed (4.0±0.07 µm (3.3-4.5) long, and 1.5±0.24 µm (1.1-1.8) wide). The investigation of nucleotide sequences of the 18S rDNA gene of the myxosporean spores from scales with universal primer А (5′-ACCTGGTTGATCCTGCCAGT-3′) and В (5′-TGATCCTTCTGCAGGTTCACCTAC-3′) showed 100% identity with episquamalis, and 99 % with M. bizerti, M. ichkeulensis, M. spinacurvata and Myxobolus sp. previously detected in mullets. The results obtained from the present study reveal that M. episquamalis, found on the scales of M. cephalus from Kerchensky preglass of the Black Sea, is new record for Russian waters.

scholarly journals Ichthyoplankton of The Shelf and Deep Water Areas of the North and Northeast of the Black Sea in The Spring Season

2021 ◽  
Vol 21 (05) ◽  
pp. 255-263
Author(s):  
Tatyana Klimova ◽  
Irina Vdodovich ◽  
Polina Podrezova
Keyword(s):  
Black Sea ◽  
Hydrological Regime ◽  
Shelf Zone ◽  
The Black Sea ◽  
Commercial Fishing ◽  
The Caucasus ◽  
Crimean Peninsula ◽  
The North ◽  
Younger Age ◽  
Water Species

This paper is focused on the ichthyoplankton species composition and spatial distribution in the Black sea shelf zone and the deepwater regions off Crimean Peninsula and coast of the Caucasus during the spring hydrological season. Recent changes in the hydrological regime of the Black sea induced by the climate warming have led to an extension of the active and productive spawning of the dominant temperate-water species Sprattus sprattus until the end of the spring hydrological season. An intensive spawning of sprat was detected in March, April and May 2016, 2017 and 2019, which was confirmed by a predominance of younger age group larvae. The maximum number of eggs reached 224 ind./m2 , and the larvae - 116 ind./m2. The wide size range of larvae as well as the low proportion of larvae with empty guts evidenced a favorable fodder base for their survival. The reduction in the age and sizeweight composition of sprat stock in the Black sea observed since 2016 as a result of an increase in its commercial fishing on the shelf of the Crimean Peninsula, did not affect sprat’ spawning activity.

Parasites of juvenile golden grey mullet Liza aurata Risso, 1810 in Sarıkum Lagoon Lake at Sinop, Turkey

2013 ◽  
Vol 58 (4) ◽  
Author(s):  
Türkay Öztürk
Keyword(s):  
Parasite Species ◽  
Host Record ◽  
Parasite Fauna ◽  
The Black Sea ◽  
Infection Prevalence ◽  
Grey Mullet ◽  
New Host ◽  
Mean Intensity ◽  
Liza Aurata ◽  
Lagoon Lake

AbstractJuvenile golden grey mullet, Liza aurata were collected from Sarıkum Lagoon Lake which connected to the Black Sea at Sinop, Turkey and examined for parasitic fauna. A total of 219 fish were investigated throughout a 1-year period. Parasite species recovered were Trichodina lepsii, T. puytoraci, Gyrodactylus sp., Ligophorus cephali, Ligophorus mediterraneus, Solostamenides mugilis, Ascocotyle sp. (metacercaria) and Ergasilus lizae. Overall infection prevalence (%) and mean intensity values were 95.9% and 412.65 ± 85.31 parasites per infected fish, respectively. Infection prevalence and mean intensity values for each parasite species in relation to season and fish size were also determined and discussed. While Ligophorus cephali and L. mediterraneus are new records for Turkish parasite fauna, the juvenile Liza aurata is a new host record for Ligophorus cephali and L. mediterraneus.

scholarly journals Metazoan parasites of common sole (Solea solea) and scaldfish (Arnoglossus laterna) (Pleuronectiformes) from Sinop coast of Black Sea

2019 ◽  
Vol 56 (2) ◽  
pp. 132-140
Author(s):  
A. Güven ◽  
T. Öztürk
Keyword(s):  
Black Sea ◽  
Parasite Species ◽  
Infection Prevalence ◽  
Metazoan Parasites ◽  
Solea Solea ◽  
The Common ◽  
Taxonomic Groups ◽  
Common Sole ◽  
Hysterothylacium Aduncum ◽  
Grillotia Erinaceus

SummaryThe metazoan parasites were investigated of two flatfish the common sole, Solea solea (n:140) and the scaldfish, Arnoglossus laterna (n: 22) in the Sinop coast of Black Sea from June 2015 to June 2017. A total of 15 metazoan parasite species belonging to Digenea (6), Cestoda (3), Acanthocephala (1), Nematoda (4) and Isopoda (1) taxonomic groups were identified. Solea solea was found to be infected by Condylocotyla pilodora, Proctoeces maculatus, Opecoelidae gen. sp., Metadena sp., Stephanostomum sp., Progrillotia sp., Capillaria gracilis, Cucullanus campanae, Solearhynchus rhytidotes and Nerocila orbignyi. Arnoglossus laterna was found to be infected by Lecithochirium musculus and Grillotia erinaceus. Scolex pleuronectis, Hysterothylacium aduncum and Dichelyne minutus were determined in both flatfish. Infection prevalence and mean intensity values were re- corded for each parasite species. Infection values for each parasite species in relation to season and fish size were also determined and compared as comparatively. This study is the first one assessing the metazoan parasites both of S. solea and A. laterna collected from the Turkish coast of Black Sea. While Condylocotyle pilodora and Capillaria gracilis are new parasite records for S. solea, Grillotia erinecaus is new parasite record for A. laterna. Moreover, this paper is the first report on occurrence of Opecoelidae gen. sp., Metadena and Stephanostomum genera in S. solea.

scholarly journals On recording of Atlantic mackerel Scomber scombrus Linnaeus, 1758 (Scombridae) in the coastal zone of Sevastopol and prospects for the revival of its fishing

2019 ◽  
Vol 4 (2) ◽  
pp. 3-10
Author(s):  
A. R. Boltachev ◽  
E. P. Karpova
Keyword(s):  
Coastal Zone ◽  
Black Sea ◽  
The Black Sea ◽  
Commercial Fishing ◽  
Complete Disappearance ◽  
Mediterranean Population ◽  
North Caucasus ◽  
Atlantic Mackerel ◽  
Scomber Scombrus ◽  
Biological Studies

Information on catching of Atlantic mackerel Scomber scombrus Linnaeus, 1758, which has become very rare in the Black Sea in the last 50 years, is considered. Several specimens were found in the period from June 7 to 15, 2018 in the catches of commercial fixed nets in the lower part of the Balaklava Bay and in the coastal zone near the Bay. One specimen was given to the authors for the study; the results of morphometric and biological studies of this specimen are given in the work. The features of the area of Atlantic mackerel are briefly considered, the distribution and biology of four main populations of this species inhabiting European waters are given, with the main attention paid to the Black Sea population. Information on the level of modern fishing of this species in the world as a whole and separately in the Republic of Turkey is given. A retrospective analysis of the catching of mackerel in the Black Sea, in particular, near the coast of Crimea, is made. The reasons for the complete disappearance of its Black Sea population in the late 1960s in the Black and Marmara seas are analyzed. The conclusion was made that, despite the increase in some cases of mackerel catchings off the coast of Crimea, the North Caucasus and Turkey, the Black Sea population of this species either completely disappeared or is in a very depressed state, and the probability of its commercial fishing recovery in the region is minimal. The preliminary conclusion on the basis of the analysis of the given material has been made that the specimen caught in the Sevastopol region may belong to the Mediterranean population of Atlantic mackerel.

scholarly journals Comparative Diplectanum aequans (Monogenea) infestations in cultured European seabass (Dicentrarchus labrax) in the Black Sea and the Aegean Sea

2019 ◽  
Vol 36 (2) ◽  
pp. 163-169
Author(s):  
Ahmet Özer ◽  
Sevilay Okkay ◽  
Türkay Öztürk ◽  
Birol Baki ◽  
Gökçe Acar ◽  
...  
Keyword(s):  
Black Sea ◽  
Average Length ◽  
Dicentrarchus Labrax ◽  
Aegean Sea ◽  
The Black Sea ◽  
Homogeneous Distribution ◽  
Mean Intensity ◽  
European Seabass ◽  
Significant Difference ◽  
The Difference

In the present study, monogenean infestations were investigated on the gills of the European seabass Dicentrarchus labrax grown in culture cages located at Yakakent coast of the Black Sea and Milas coast of the Aegean Sea. Parasitological investigations were conducted simultaneously at both localities during September 2014, February and April 2015. While a total of 100 fish specimens were examined from Yakakent samples whose average length was 19.37 cm, a total of 88 fish specimens were examined from Milas samples whose length was 22.67 cm in average. Only one monogenean species Diplectanum aequans was recovered from investigated fish specimens at both sampling localities. Infestation prevalence (%) and mean intensity values of D. aequans were 89.0% and 9.6 ± 0.8 in Yakakent samples while those infestation indices were 90.9% and 13.3 ± 1.2 in Milas samples, respectively. The difference between the infestation prevalence (%) values of D. aequans at both sampling localities was not statistically significant, on the other hand, the difference was statistically significant in the mean intensity values at both locations. Diplectanum aequans showed a homogeneous distribution in all gill arches of fish without any statistically significant difference. This is the first comparative study on the infestation of D. aequans on the gills of European sea bass D. labrax cultured in the Black Sea and the Aegean Sea.

Sign in / Sign up

Export Citation Format

Share Document