ABSTRACT
Shrimps are considered as the pinkish gold of sea, around 80% of World's aquaculture production comes from this industry. In Indian subcontinent 75% of aquaculture development is on the East Coast of the Bay of Bengal. Present study was undertaken to study the Vibrio and fungal infection in the ice stored Penaeus monodon [Shrimps]. Present study reveals that the samples harvested from Mallipattinum showed highest rate of infection [71.47%] and was followed by the Nagapattinum samples [67.66%]. Green and Yellow coloured colonies of smooth, raised and mucoid Gram negative rods were observed. Fungal analysis revealed that Mallipattinum showed highest percentage of infection [21.47%] and was followed by the samples collected from Nagapattinum. The lactophenol cotton blue mounting revealed the presence of A. flavus, A. niger and Fusarium oxysporum
ABSTRACT
Intertidal driftwood samples were collected from Muthupet mangrove environment, South East Coast of Tamilnadu, India. The wood samples were examined for fungi by plating method culturing on Potato Dextrose Agar Medium with sea water. A total number of 27 species of fungi belonging to 7 genera were recorded. Most of them were Deuteromycetes except Rhizopus. Out of 27 species Aspergillus niger was found to be dominant fungus followed by Aspergillus fumigatus and A. flavus. Thus the intertidal driftwood along Tamilnadu East Coast yield impressive diversity of fungi
Subject(s)
Wood , Mitosporic Fungi , Aspergillus niger , Aspergillus fumigatus , Aspergillus flavusABSTRACT
Fish serves as food for mankind. Flesh of fish is a perishable commodity. A study was taken to ascertain the pathogenicity of Aeromonas hydrophila; Pseudomonas aeruginosa and Vibrio parahaemolylicus on Indian major carps Catla catla and Labeo rohita. Among the three bacteria used, Aeromonas hydrophila was more pathogenic followed by Vibrio parahaemolyticus and Pseudomonas aeruginosa. Among the carps tested Catla catla was found to be more susceptible than Lobeo rohita. The major biochemical components such as the protein, carbohydrate and lipid levels showed significant variation between the control and infected groups [p<0.05] Morphological chances like yellow coloured abdomen, haemorrhage on the head region, swelling of the abdomen, accumulation of fluid in the abdomen and necrosis of the internal organs were observed in the Aeromonas hydrophila and Vibrio parahaemolyticus infected carps
ABSTRACT
This paper describes the detection of virus by using polymerase chain reaction and histopathological changes occurred in WSBV infected post larvae of Penaeus monodon. The affected shrimp showed red coloured body exhibiting type II outbreak. In histopathology, hypertrophied nuclei and eosinophilic inclusions were observed