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This paper depicts the research conducted at a micro-pilot scale on autochthonous cultures in order to develop adequate technological solutions for the treatment of wastewater resulting from shrimp cultures (Palaemonidae) that would ensure the protection of the Black Sea ecosystem and constitute an applicable tool for the development of aquaculture in Romania. The proposed objectives were attained by adopting an integrated system of marine cultures shrimps-mussels-macrophyte algae, followed by a conventional chemical treatment step using aluminium sulphate recovered from metallurgical slags. This system together with wastewater treatment ensures an optimum development of species and a minimum load of pollutants in the aquatic environment.

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Summary:The extension of the Natura 2000 European ecological network to the Romanian marine territory (1 site according to the Birds Directive requirements and eight sites according to the Habitats Directive requirements, one also being a natural reserve and one part of the Danube Delta Biosphere Reserve) might cause conflicts between the Romanian marine fishery and these sites. In order to minimize such conflicts, the evaluation of the interaction between fishery and the preservation objectives of the Natura 2000 sites is compulsory and extremely important. The assessment of the environmental impact is a key tool of the EU environmental legislation, which is used in evaluating the effect of human activities on the ecosystem. In addition, the involvement of all interested stakeholders in the development of the fishery on the Romanian littoral and in environmental protection will be the key to success in finding viable co-management solutions in the Natura 2000 sites. The present paper aims to examine how the fisheries interact with the marine environment on the Romanian coast in the network of marine protected areas.Keywords: marine fisheries; marine protected areas; Romanian littoral. Cómo reconciliar la pesca y la protección de hábitats en áreas marinas protegidas de RumaníaResumen: La extensión de la red de trabajo ecológica europea Natura 2000 en el territorio marino de Rumanía (1 lugar según los requisitos de la Directiva de aves y 8 lugares según los requisitos de la Directiva de Hábitats, siendo también uno de ellos una reserva natural y una parte de la Reserva de Biosfera del Delta del Danubio) podría causar conflictos entre las pesquerías marinas rumanas y estos lugares. Para minimizar estos conflictos, es obligatorio y extremadamente importante llevar a cabo la evaluación de la interacción entre la pesca y los objetivos de preservación de los lugares de la red Natura 2000. La evaluación del impacto ambiental es una herramienta clave de la legislación ambiental europea, que se utiliza en la evaluación del efecto de las actividades antropogénicas en el ecosistema. Además, la participación de todos los actores interesados en el desarrollo de las pesquerías del litoral rumano y en la protección ambiental, servirá para demostrar la viabilidad de las soluciones alcanzadas a través de la cogestión en los lugares de la red Natura 2000. El presente documento tiene como objeto examinar como interaccionan las pesquerías con el medio marino en la costa de Rumanía dentro del sistema de Áreas Marinas Protegidas.Palabras clave: pesca marina; áreas marinas protegidas; litoral rumano.Citation/Como citar este artículo: Zaharia T

This paper aims to point-out the effects of applying different live feed diets to the long-snouted seahorse (Hippocampus guttulatus Cuvier, 1829) of the Romanian Black Sea coast. The response of seahorses to Brachionus plicatilis-based, Artemia salina-based and combined diet is analysed, from the development, ethologic and biochemical point of view. Three experimental tanks were set in laboratory conditions, for a 10 day period. The different batches of seahorses collected from the natural environment were placed in the three tanks, after previous acclimation. Subsequently, one batch (Tank A) was fed exclusively with B. plicatilis, one with A. salina (Tank B), and one with a 50%/50% combined mixture of the two invertebrates (Tank C). The results obtained indicated a linear length and weight increase of H. guttulatus in all three feeding regimes, the final length (+10 days) being higher than the +5 days length and initial length. The biochemical composition of the three batches showed some variations. From the ethologic point of view, differences in the behavior of H. guttulatus in the three tanks were observed. Future research is required, focusing mainly on extending the experimental period (more than 30 days), separating males and females and diversifying the prey fed to seahorses.