HEAVY METALS IN ABIOTIC AND BIOTIC COMPONENTS OF AQUACULTURE HYDROECOSYSTEM “ISHKHAN" / ВАЖКІ МЕТАЛИ У АБІОТИЧНИХ І БІОТИЧНИХ СКЛАДОВИХ РИБОГОСПОДАРСЬКОЇ ГІДРОЕКОСИСТЕМИ «ІШХАН»
Journal Title: Рибогосподарська наука України - Year 2015, Vol 34, Issue 4
Abstract
Purpose. To determine the heavy metal content in abiotic components (water and bottom sediments of tanks), feeds, organs and tissues of rainbow trout in the conditions of industrial aquaculture. Methodology. The materials for the study were 1+ rainbow trout cultivated in 2011–2012, which were produced from brood rainbow trout reared in the tank aquaculture farm “Ishkhan”. Experimental fish were collected from rearing tanks №№ 3–4. Mean fish weight was 466 g with mean fork length of 36 cm. Fish stocking density at the final stage of rearing was 50 kg/m3 or 100 fish/m2. Fish were kept according to standard salmon culture methods. Quantitative determination of heavy metal concentrations in water, bottom sediments and fish were performed by direct suction of solution in propane-butane-air flame with the aid of absorption spectrophotometer S-115-M1. Findings. The results of the performed studies include the determined ecological state of rearing tanks and quality of marketable rainbow trout of the fish farm “Ishkhan” by the above-mentioned characteristics. Main hydrochemical parameters, which characterized water quality, complied with aquaculture norms. However, a tendency for an increase in heavy metal content was noted in bottom sediments. In particular, an increased content of copper, nickel as well as toxic elements – lead and cadmium was observed. Originality. First study of the ecological state of rearing tanks of the fish farm “Ishkhan”. Practical value. The obtained results of the ecological state of rearing tanks of the fish farm “Ishkhan” will allow crating optimum conditions for fish rearing.
Authors and Affiliations
A. Melnik, Yu. Sytnyk, N. Kolesnyk, L. Galoyan
Keywords
Related Articles
- EP ID EP475588
- DOI 10.15407/fsu2015.04.005
- Views 28
- Downloads 0
Food resources and trophic relationships of brown, rainbow trout and european grayling in different habitats of Shypit river of the Transcarpathian region / Кормова база та особливості живлення струмкової, радужної форелі та харіуса на різних біотопах річки Шипіт Закарпатського регіону
Purpose. To study food resources, feeding conditions and trophic relationships of the brown trout (Salmo trutta morpha fario), rainbow trout (Oncorhynchus mykiss), and European grayling (Thymallus thymallus) in a Transca...
Methods in fish genetics, selection and biotechnology. Thematic bibliography / Методи досліджень у генетиці, селекції риб та біотехнологіях. Тематична бібліографія
Purpose. Forming a thematic bibliographic list of publications publications on the application of classical and newest methods of research in fish genetics and fish selection, as well as in biotechnologies in aquaculture...
THE CURRENT METHODS FOR MOLECULAR DIAGNOSTICS OF FISH DISEASES (REVIEW) / СУЧАСНІ МЕТОДИ МОЛЕКУЛЯРНОЇ ДІАГНОСТИКИ ЗАХВОРЮВАНЬ РИБ (ОГЛЯД)
Purpose. The methods of molecular diagnostic (MMD) gradually become widespread in modern fish farming. MMD contain a wide variety of specific approaches, each of which has distinct limits of their possible applications a...
EFFECT OF AQUATIC ENVIRONMENT PH ON THE LEVEL OF ECTOPARASITE INFESTATION, PROTEIN AND LYSOZYME CONTENT IN SOME CYPRINID SPECIES (CYPRINIDAE) / ВПЛИВ PН ВОДНОГО СЕРЕДОВИЩА НА РІВЕНЬ ЗАРАЖЕННЯ ЕКТОПАРАЗИТАМИ, ВМІСТ БІЛКА ТА ЛІЗОЦИМУ У ДЕЯКИХ ВИДІВ КОРОПОВИХ РИБ (CYPRINIDAE)
Purpose. To study the effect of рН values of the aquatic environment on the level of ectoparasite infestation, protein and lysozyme content in organs and serum of some cyprinid species in experimental conditions. Method...
Effect of the diet and growing conditions on the manifestations of cannibalism in the eastern freshwater shrimp (Macrobrachium nipponense De Haan, 1849) / Вплив складу раціону і умов вирощування на прояви канібалізму у східної прісноводної креветки (Macrobrachium nipponense Dе Haan, 1849)
Purpose. To study the effect of diet and water flow composition on the manifestations of cannibalism of shrimp Macrobrachium nipponense during rearing under controlled conditions. Methodology. The material for the work...