Analysis, Aquaculture, Fish-culture, Fishes, Bacteria, Anti-Bacterial Agents - isolation & purification, Aquaculture industry, Anti-Bacterial Agents - pharmacology, Rhodophyta - genetics, Rhodophyta - classification, Rhodophyta - chemistry, Gram-Negative Bacteria - drug effects, Anti-Bacterial Agents - toxicity, Mytilus - drug effects, Cholera toxin, Antibac...