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Marine pollution

Marine pollution Coastal zone; growth and human activities Contaminant enter sea : 1. riverine 2.nonpoint source runoff from land 3. pipe line discharges 4. discharged and dumping from ship. 5. atmoshperic deposition. Type of contaminants: 1.petroleum hydrocarbon.

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Marine pollution

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  1. Marine pollutionCoastal zone; growth and human activitiesContaminant enter sea : 1. riverine 2.nonpoint source runoff from land 3. pipe line discharges 4. discharged and dumping from ship. 5. atmoshperic deposition.Type of contaminants:1.petroleum hydrocarbon

  2. 2. Halogenated hydrocarbon3. Heavy metal4. Radio nuclied (Ce 137, Sr 90, P 239, P 240)5. LitterControl

  3. Important of Fish DiseaseDisease and pathogen impact to commercially fish, sport, ornamental, human, domestic animalFish disease useful as bioindicator human contaminatiosXenobiotic effect in water, viruses, bacteria, parasite, neoplasms

  4. Disease of wild fishCaused by phisical and chemical changes, water temp, cold shock, thermal effluent, low DO, pollution caused neoplasmaAC caused skin lesion, fin ulcers etc, impairment of defense mechanism, detrimental effects of reproductionsDetrimental effects of algal bloomAB caused by dinoflagellatae, produce

  5. Disease of wild fishCaused by phisical and chemical changes, water temp, cold shock, thermal effluent, low DO, pollution caused neoplasmaAC caused skin lesion, fin ulcers etc, impairment of defense mechanism, detrimental effects of reproductionsDetrimental effects of algal bloomAB caused by dinoflagellatae, produce

  6. Toxin, ex Chattonela antiqua killed yellowtail. 4 known mechanism algal, 1.physical damage to gill, 2. asphyxation 3.gas bubble trauma., 4.direct chemical toxicity.Infectious disease in wild fishParasite cause poor flesh, ex fish infected by Kudoa, Hexacapsula etc.Infect human, anisakine, trematoda

  7. Some bacteri, V. anguillarum, P.piscicida, Streptoccocus, etc causing disease in marine fish.Birvavirus also reported disease in atlantic menhaden etc.Disease in captive fishReared in crowded, cauded immunosuppesion

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