QUANTITATIVE AND QUALITATIVE EVALUATION OF ICHTHYOPLANKTON IN THE ROSCI0066 DANUBE DELTA - THE MARIN AREA SITE – A CASE STUDY IN VERNAL SEASON 2012

Journal Title: Current Trends in Natural Sciences - Year 2014, Vol 3, Issue 5

Abstract

Ichthyoplankton are the eggs and larvae of fish and is a component of the trophic spectrum of different consumers, but also is a new ichtyofauna for aquatic ecosystem. To assess the qualitative and quantitative structure of the ichthyoplankton in ROSCI0066 site, in vernal season 2012, the samples were collected using Bongo net in six stations (Sfantu Gheorghe, Zaton, Sahalin, Periteasca, Sulina, Portita). For each particular station were recorded the data like: date when the sample was taken; the geographical coordinates of the station; water depth (m); the number of revolutions of the net. The biological samples were stored in 4% formaldehyde and analyzed in the laboratory. To estimate the number of spawn and larvae per m2 was used Tanaka's formula, by taking into consideration: the sampling depth, the surface net, the number of revolutions of the flow meter, the volume of filtered water (m3), number of spawn or larvae collected. Ichthyoplankton results are expressed in number of individuals/sample and individuals m-2 and for juveniles in numbers/trawling and individuals m-2. In the ROSCI0066 Danube Delta - the Marin Area site, in vernal season 2012, it is found that the diversity of species in the samples analyzed is very low, being identified only four species of fish from the Engraulidae, Clupeidae, Mullidae and Gobiidae families. According to the results, sprat prefers the south of the Romanian Black Sea coast and is prevalent in evidence by the presence of eggs and anchovy by the presence of larvae.

Authors and Affiliations

Carmen Georgeta Nicolae, Madalina Galatchi, Monica Marin, Valodia Maximov, Ion Răducuţă, Gratziela Bahaciu

Keywords

Related Articles

CONTRIBUTIONS TO THE STUDY ON THE EFFECTS OF STOMP 330 EC HERBICIDE UPON THE MARSH FROG

Pesticides are the best examples of risky compounds because they spread all over the environment. The experiments were performed to determine the effect of the Stomp 330EC herbicide at concentrations of 0.5 x 103, 1 x 1...

AGRICULTURAL WATER MANAGEMENT IN TURKEY: PAST-PRESENT-FUTURE

Water is an essential element in ensuring food safety. It is not possible to obtain food without water. The importance of water is gradually increased and nowadays raised to the top ranks among strategic resources. The...

RESEARCH ON THE ENVIRONMENTAL QUALITY IN DOAMNEI RIVER

The main purpose of this study is to determine the ecological quality of Doamnei River. The present paper was developed on the basis of bibliography in connection with this subject and personal field research conducted...

THE INVASIVE ENTOMOFAUNA OF THE HOLOMETABOLA GROUP, SUPERORDER MECOPTEROIDEA FOR REPUBLIC OF MOLDOVA

The invasive entomofauna from the Holometabola group, Mecopteroidea supraorder for Republic of Moldova consists of 79 species from 3 orders (Lepidoptera, Hymenoptera and Diptera). These 79 species of insects were compar...

ACHIEVEMENTS IN PEPPER BREEDING AT RESEARCH DEVELOPMENT INSTITUTE FOR VEGETABLE AND FLOWER GROWING - VIDRA

Pepper is one of the annual vegetable species occupying large areas both in open field and in protected areas. In our country there are cultivated several types: bell pepper, round pepper, long pepper for fresh consumpt...

Download PDF file
  • EP ID EP24987
  • DOI -
  • Views 204
  • Downloads 15

How To Cite

Carmen Georgeta Nicolae, Madalina Galatchi, Monica Marin, Valodia Maximov, Ion Răducuţă, Gratziela Bahaciu (2014). QUANTITATIVE AND QUALITATIVE EVALUATION OF ICHTHYOPLANKTON IN THE ROSCI0066 DANUBE DELTA - THE MARIN AREA SITE – A CASE STUDY IN VERNAL SEASON 2012. Current Trends in Natural Sciences, 3(5), -. https://europub.co.uk/articles/-A-24987