Using A Gram Stain To Dectect Bacteria In The Hemolyph Of Pacific Oyster

Aquaculture or the farming of aquatic organisms is a method to relive the fishing pressure on wild stocks and may offer tremendous socio-economic benefits to both developing and wealthy countries. Many countries are finding the farming of aquatic organisms such as shellfish to be an effective and beneficial alternative means to increase abundance of catch.

The practice of aquaculture has suffered in many countries due to disease among the shellfish, which can kill up to 80% of the harvest (Wooten et al.2003 ),(Rodriguez et. al.200) and spread sickness to people eating infected shellfish. The sustainability of shrimp culture is questionable as pathological problems in the majority of shrimp producing countries is increasing (Bachere 2000). An understanding of the physiology

of the defense systems in invertebrates may allow for more efficient control of the shellfish, which can be carriers of disease.

5. Decolorized by washing briefly with acetone for 2-3 seconds twice.

The shrimp had a large parasite on its ventral side located between the pleopods. The parasite was a rhizoseflin parasite which causes parasitic castration.

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