Rybohospodars'ka nauka Ukrayiny (Fisheries Science of Ukraine)

11-15

Authors: Grytsyniak І., Lytvynova Т., Kolesnyk N.

Statistic analysis of longstanding investigations (1990–2008) of content of heavy metals in water and organs and tissues of carp and silver carp is given, as well as formula for calculating their concentration. The method is recommended for use in ichthyological investigations for evaluation of physiological state of fish.

20-27

Authors: Krazhan S., Grygorenko T., Kolos O., Koba S.

Presented results of hydrochemical and hydrobiological researches at the fertilizer of excres- cence ponds wastes of brewing production (by a beer pellet).

49-52

Authors: Kotovs’ka G., Khristenko D.

The article contains basic biological indicators of silver bream spawning stock: average-weighed age, length, weight, condition index, fattness, sex ratio, and spwaning kernel composition. There have been analyzed effects of water temperature and level during spawning period on time and efficiency of repoduction of this species during 1998–2007. It was found that the time of spawning commencemnet did not practically changed during last 10 years.

59-64

Authors: Vasilkovskaja O.

The data resulting perennial investigations on zooplankton in the steppe small rivers of the North Eastern Pontic Region, mainly from the interflow area of Danube and Dniester are given. The plankton species are listed, and average indices of plankton development during vegetation period are shown to reach 722,01 mg per m3 for flow and 768,73 mg per m3 for delta portions of rivers.

70-76

Authors: Hankevych B., Tretyak О., Onuchenko O., Bazaeva А., Chuzhma N.

Growing of marketable production of North American zooplankton-eating representative of sturgeon species — paddlefish was conducted at polyculture with cyprinids (common carp, silver carp, bighead carp, grass carp) in ponds located in the central region of Ukraine. There was used a limited feeding of carp by artificial feeds. Stocking density of 1–3-year paddlefish with average bodyweight from 86,2 to 3345,0 g in ponds with area 72–74 ha varied within 59–85 ind./ha with total stocking density of all fishes 1568–2402 ind./ha. As a whole, environmental conditions of ponds corresponded to biological requirements of studied polyculture objects, average seasonal zooplankton biomass was within 3,9–5,8 g/m3. As a result, paddlefish production was 48,6– 224,3 kg/ha with total fish productivity in ponds from 1067,1 to 1248,8 kg/ha. Average seasonal paddlefish bodyweight gains increased with age from 1,22 до 2,47 kg at average bodyweight of age-2 fish — 1,31–2,14 kg, age-3 fish — 4,26 kg, age-4 fish — 5,82 kg.

82-84

Authors: Filipov V., Mruk A., Buchatsky L.

The possibility of rainbow trout (Oncorhynhus mykis) sperm cryopreservation with the aid dehydrataion-vitrification method was shown. There have been determined conditions of bioob- ject cryopreservation: mediums, cryopreservatives and freezing–thawing regimes. We obtained progeny of rainbow trout with the use of cryopreserved sexual products.

90-97

Authors: Koziy M., Sherman I.

Is studied citostruktury of hepar of maggot Cyprinus carpio, got zooplankton and two types artificial startprovender. Change citostruktury of hepar are connected with periodicity morpho- genesis processes (the growing, differentiation and synchronous proliferation of the cellues) in early postembriogenesis fish. The factors of the fluctuations citostruktury of hepar of mag- got fish is offered use as biotest at optimization technology and in biomonitoring water ambience.

104-109

Authors: Pshenychny D., Hrytsynyak I., Grynzhevsky M., Shvets T.

Economic efficiency of growing of carp hybrids in polyculture with herbivorous fishes in ponds by intensive technology, that provides the receipt of carp hybrids by individual weight 820–1050 g with fish productivity of ponds 1040–1297 kg/ha is shown.

117-123

Authors: Borbat M., Oleksienko V., Bezusiy O., Borbat L.

The are presented expected changes of water fund and sncrease оf amounts of fish rearing in water bodies of Kyiv region until 2020.

130-133

Authors: Deren O.

Influence of different doses alcoholic extract of echinacea purpurea introduced over probe at he- matologic and biochemical parameters carp blood is studied. That indicators tended to increasing at all experimental groups, but it was higher at the echinacea concentration 0.3 ml/kg living masses.