Marine species (n=36) available in a supermarket of Cluj-Napoca city, Romania were collected and analyzed for the levels of heavy metals (Cr, Cu, Zn, Cd, Pb, Hg) and As, polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCPs), such as dichlorodiphenyltrichloroethane (DDT) and analogous, hexachlorocyclohexanes (HCHs) and hexachlorobenzene (HCB). The collection included samples from twelve fish groups (sardine, tuna, herring, pangasius, marbled rockcod, hake, shrimp, pink shrimp, lo...
Autori: Adriana Gog, Claudiu Tanaselia, Ioan Ştefan Groza, Marin Senila, Mirela Miclean, Oana Cadar
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=25863

Abstract The first step for scientific and sustainable aquaculture development is appropriate site selection, and the success or failure of any aquaculture development largely depends on the right selection of the site. Due to favorable climatic conditions, suitable water quality, soil high natural productivity and space availability, the long southern coastline of Iran is regarded as highly suitable for aquaculture development. Site selection can be viewed as a multi-criteria decision makin...
Autori: Freydoon Vafaie
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26866

Abstract Superintensive growth of fish in a controlled environment involves taking a series of measures to ensure the oxygen necessary to provide optimal living conditions for stocks. Considering the fact that oxygen has a relatively low solubility in water, the photosynthesis in basins does not occur and the rate of incoming water may be low, it is imperative to supplement the water with oxygen. The paper presents theoretical researches on mathematical modelling and numerical simulation of ...
Autori: Vasilica Ştefan
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=26871

Sustainable development of rural areas involving rural communities is a complex and timeless research theme, as it is based on two fundamental parties, which are in close interdependence: the headspring of sustainable resources generating development, and the rural residents representing both the consumer and the active factors of the development. In this context, this paper proposes an approach addressing the strategic options for the development and diversification of the rural economy, bas...
Autori: Romulus Iagăru
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27059

Phosphorous (P) and organic carbon (OC) found in organic matter (OM) play pivotal role in the productivity process of aquatic environment and significantly controlling its physico-chemical properties. The excessive P and OC containing muds of aquaculture systems deteriorate the congenial culture environment through developing eutrophication problems. The objective of present study was to determine the distributional relationship between the P, OC, and OM in the mud of shrimp-farming ponds of Vie...
Autori: Jatindra N. Bhakta
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27175

Non-availability of good quality water in sufficient quantities and the environmental impacts of used water discharges have led to the treatment and reuse of the aquaculture water contaminated with dissolved organics and ammonia rather than discharging it. This paper explores the effectiveness of in-situ sediment microbial fuel cell (MFC) for aquaculture water treatment along with generation of electricity. A sediment microbial fuel cell (SMFC) was designed and the efficiency of stainless steel ...
Autori: Thypparampil Karunakaran Sajana
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27261

The impacts of anthropogenic activities on the water and sediment fluxes in coastal areas have caused significant economic and environmental damages over the last century. The development of large-scale water abstraction and sediment retention infrastructures has facilitated phenomena such as coastal erosion, frequent eutrophication events and sea water anoxia. The present work investigates the alterations that have been observed over the last 50 years in the area of Thermaikos Gulf, Northern Gr...
Autori: Elias Dimitriou
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27582

Dam construction in Cuba and their use for freshwater aquaculture development are explained. Some of the environmental impacts of Cuban freshwater reservoirs, particularly in fisheries, the salinization of coastal lands, and effects on marine fisheries, are reviewed and analyzed. Some argumentation and explanations given are in response to remarks on the impact of Cuban dams on species composition of reservoir fishery landings and on coastal marine fisheries. The main impacts of dams are on estu...
Autori: Luis Alvarez-Lajonchčre
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27653

One of the main challenges for the development of biomass algal system production is the high operational and capital costs for these technologies. A great opportunity to overcome these challenges may however exist in the integration of wastewater treatment with algal biomass production. The algae are used for treatment of industrial wastewater, for purification of effluent originating from livestock production, while the studies concerning the use of algae species for the treatment of aquacultu...
Autori: Katya Velichkova
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27684

Livestock farming in rural areas in Jilin Province is producing a huge amount of organic pollutants like livestock and poultry manure, of which, a large portion is directly dumped into the Yitng River, bringing serious harm to the environment. Taking Soonlng Village as an example, this paper investigates the environmental pollution caused by the livestock husbandry in this village and builds a biogas heat storage greenhouse ecosystem, which, by using solar energy to heat the biogas digester, ...
Autori: Songying Zhao
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=27943

As one of the largest coastal wetlands in northern China, the ecological function of Caofeidian wetland has gradually degraded due to the influence of climate and surrounding environment. In order to regulate and repair the water area of the wetland, it is necessary to study and analyse the historical changes and influencing factors of the water area of Caofeidian wetland This paper extracts the water area of Caofeidian Wetland in 1984~2013 from the images collected by Landsat satellites usin...
Autori: Shaoxiong Zhang
ISSN: 1843 - 3707
http://www.ecozone.ro/reviste.php?RID=28022