As copepods are an important food source for most fish larvae, there is a continuing interest in developing techniques for culturing marine copepods as live food in aquaculture. Studies have shown that several species of calanoid copepods can be used successfully in aquaculture, acclimatized and grown in the laboratory over several generations and serve as testing organisms in acute toxicity tests. However, significant difficulties in cultivating calanoid copepods in high quantities were reported. They are related to their low tolerance to changes in water quality and reduced production capacity compared to other taxonomic groups. Therefore, working methods for obtaining viable cultures of calanoid copepods are dependent highly on the local environmental context. Until now, such a method has not been implemented for calanoid species from the Romanian Black Sea coast. This paper details the methodology we adapted and used for achieving a viable Acartia (Acartiura) clausi (Giesbrecht, 1889) culture using specimens collected along the Romania Black Sea coast Reproduction and egg hatching occurred under laboratory-controlled conditions, and viable individuals of A. clausi were obtained. Our results open the possibility of integrating this species in toxicity tests and food production for the marine aquaculture industry.
The paper presents the analysis of hyponeustonic species present in the south-western part of the Black Sea, in October 2019, within the ANEMONE Project. From the qualitative and quantitative point of view, two species were identified: Anomalocera patersonii Templeton, 1837 (WoRMS) and Pontella mediterranea Claus, 1863 (WoRMS). The analyzed samples showed significant densities of these species, being found in different development stages, from nauplii to copepodites but also as adults and having a representative distribution on the entire analyzed surface. A. patersonii was abundant in the northern part of the Romanian marine area, the southern marine area of Bulgaria and in Turkey central area, while P. mediterranea recorded a higher abundance in the Romanian Black Sea area.
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