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  • Chemistry  (1)
  • Environmental impact  (1)
  • CONyMA  (2)
  • Iranian Fisheries Science Research Institute
  • Tehran, Iran
  • 2015-2019
  • 2005-2009  (2)
  • 1985-1989
  • 2008  (2)
  • 1
    Publikationsdatum: 2021-05-19
    Beschreibung: The anthropogenic affectation was evaluated on the coast N of the Gulf of Batabanó in May 2003 (corresponding to the provinces of Matanzas and Havana), in areas located in the line of the coast. The results were compared with the historical information of the sector. In the coast N and the Ensenada of the Broa, the parameters oxygen saturation, DBO5 and DQO showed characteristic high values of eutrofication. The biggest contribution in the Cianoficies was in the near coastal areas to sources of organic contamination. In the case of the nutrients they show specific data of mesothrofic waters with tendency to the eutrofization and the silts presented a high affectation for toxic metals. The area near to Guanímar is distinguished to present conditions of organic contamination that favor heterothrofic conditions, corroborated by a prevalence of the processes of mineralization of the organic matter over primary production and lows values of fitoplankton concentration. On the contrary, in the region of Surgidero of Batabanó, the processes of synthesis of organic matter prevail suggested by a high primary production, and concentration of fitoplankton, with low breathing levels and mineralization of the organic matter, that indicates that the system is behaving autothrofically. In a general way, this sector is very affected by the anthropogenic impact. The information obtained is of great importance for the development of the fishing and tourist industries in the area.
    Beschreibung: Published
    Schlagwort(e): Phytoplankton ; Water quality ; Primary production ; Chemistry ; Environmental monitoring ; Phytoplankton ; Water quality ; Primary production ; Chemistry ; Environmental monitoring
    Repository-Name: AquaDocs
    Materialart: Proceedings Paper
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Publikationsdatum: 2021-05-19
    Beschreibung: The present paper involves their results in the pollutant contributions to the aquatic ecosystems according to the products processed in different productive facilities of the Cuba Island, and concerning to the most significant fishing resources as lobster, white shrimp, tuna, shark, snapper, mackerel, jack and bill fish. The polluting loads in 12 years (between 1955 and 1999) respond to the indicators BOD, QOD, TP, TNK and N-NH4. The captures for those years were approximately between 3 950 and 23 970 tons, with fluctuations of BOD loads between 56 and 342 tons and of DQO between 111 and 676 tons. The principal nutrients contribution was the nitrogen, followed by the phosphorous and finally the ammonium, representing a total contribution of 136,3; 52,7 and 18,0 tons respectively in those 12 years. For the purification of this pollutant concurrence is necessary 600 tons of oxygen that is in correspondence with a contribution of 100 x 106 m3 of seawater, insinuating the impracticable of a natural purification process. The report culminates with the possible affectations caused by discharges of polluted waters on the ecosystems, recommending the use of the information offered in this document, with the objective to elaborate the future plans that allow to establish environmental programs, as well as to estimate the treatment system effectiveness operation, required to implement in the Cuban fishing industry.
    Beschreibung: Published
    Schlagwort(e): Waste water ; Environmental impact ; Fishery industry ; Waste water ; Environmental impact
    Repository-Name: AquaDocs
    Materialart: Proceedings Paper
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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