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1

The metazoa parasites of gobiids in the Dniester estuary (Black Sea) depending on water salinity

100%
Kvach Y.
Oceanological and Hydrobiological Studies
|
2004
|
issue 3
47-56
EN
A list is presented of metazoan parasites that infect seven gobiid fishes (the toad goby Mesogobius batrachocephalus, monkey goby Neogobius fluviatilis, racer goby N. gymnotrachelus, bighead goby N. kessleri, round goby N. melanostomus, ratan goby N. ratan, and syrman goby N. syrman) from the Dniester Estuary (Black Sea). Infections by thirteen species of metazoa parasites, including four trematodes, three cestodes, five nematodes, and one crustacean species, were observed in the gobies sampled from the estuary. The data complements the existing list of parasite species that inhabit the fishes of this aquatic basin. Water salinity varies in the estuary, which impacts parasite distribution. Brackish-water parasites prevailed in the Dniester Estuary, while the marine trematode C. lingua occurred only in the southern part.
2

Influence of environmental factors on myxosporean infestation of Black Sea fish in coastal waters

100%
Yurakhno V. M.
Oceanological Studies
|
1997
|
vol. 26
|
issue 1
75-85
EN
The myxosporean fauna of the Black Sea is predominantly marine with a few brackish and fresh-water species. Seasonal changes in water temperature influence the life-cycle of Black Sea myxosporeans primarily through the biology of the host. This is because the mass formation of spores in Myxosporea takes place when hosts form the largest shoals. The high saturation of the water in Tendrovsky Bay with hydrogen sulphide accounts for the mass mortality of fish, but and at the same time for the fact that many fish species were found to be free of parasites. Myxosporeans occur practically at any depth where their hosts can live.
3

Helminthes of gobies from the Tuzly?s Lagoons (the north-western part of the Black Sea)

100%
Kvach J.
|
EN
The round goby Neogobius melanostomus and the grass goby Zosterisessor ophiocephalus are most widespread fishes of the Tuzly?s group salty lagoons - Alibey and Burnas (North-Western part of the Black sea, Ukraine). The helminthofauna of these fishes consists of six species of parasites: Cryptocotyle lingua, C. concavum, Acanthocephaloides propinquus, Telosentis exiguus, Contracaecum microcephalum, and Cucullanellus minutus. Trematods of the genus Cryptocotyle, acanthocephalans A. propinquus, and larvae of nematods C. microcephalum are reported from this water area for the first time; the latter from gobies for the first time. The interrelation between infection of fishes and biology of helminthes and their host is discussed. This is the first study containing the complete information on the parasite fauna of the Lagoons.
4

Feeding preferences of the round goby Neogobius melanostomus and mushroom goby Neogobius cephalarges in the Odessa Bay

100%
Kvach J., Zamorov V.
Oceanological Studies
|
2001
|
vol. 30
|
issue 3-4
91-101
EN
Feeding preferences of the round goby and mushroom goby from the Odessa Bay (areas with civil engineering works) were studied. Two goby species were observed to choose different dietary items in dependence of the season and place of fishery. The mushroom goby chose Nereis succinea more intensively than the round goby.
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