Objective:To study the prevalence and mean intensity of copepod parasite Lernaeenicus polynemi infestation on Eleutheronema tetradactylum from Pazayar,Tamil Nadu,southeast coast of India.Methods:The fish was collected...Objective:To study the prevalence and mean intensity of copepod parasite Lernaeenicus polynemi infestation on Eleutheronema tetradactylum from Pazayar,Tamil Nadu,southeast coast of India.Methods:The fish was collected from Pazhayar landing centre from January to December 2012 and their biometric measurements were examined.Toal number of infected fish and total number of parasites were recorded.Results:Higher prevalence and mean intensity of infestation of 35.23%and 3.1 were respectively reported during monsoon season of 2012.The parasitic infestations were scattered over the entire body of the host and targeted the different internal organs such as liver and the dorsal aorta.The highest intensity was reported to be 66 parasites in a single host.Conclusions:Due to the heavy parasitic attack the fish will suffer and its economical value or the marketability may reduce.展开更多
Objective:To identify fish tumour associated bacteria.Methods:The marine fish Sphyraena jello with odontoma was collected from in Tamil Nadu(Southeast India),and tumour associated bacteria were isolated.Then the isola...Objective:To identify fish tumour associated bacteria.Methods:The marine fish Sphyraena jello with odontoma was collected from in Tamil Nadu(Southeast India),and tumour associated bacteria were isolated.Then the isolated bacteria were identified based on molecular characters.Results:A total of 4 different bacterial species were isolated from tumour tissue.The bacterial species were Bacillus sp.,Pontibacter sp.,Burkholderia sp.and Macrococcus sp.,and the sequences were submitted in DNA Data Bank of Japan with accession numbers of AB859240,AB859241,AB859242 and AB859243 respectively.Conclusions:Four different bacterial species were isolated from Sphyraena jello,but the role of bacteria within tumour needs to be further investigated.展开更多
Objective:To describe and observe four types of neoplasms on different parts(external and internal organs)of an Asian sea bass(Lates calcarifer).Methods:The sample was collected from local fish landing center(south ea...Objective:To describe and observe four types of neoplasms on different parts(external and internal organs)of an Asian sea bass(Lates calcarifer).Methods:The sample was collected from local fish landing center(south east coast of India).Histopathology of normal and tumour tissues were analyzed.Results:A total of 83 tumour masses(neoplasm)were recorded on the fish skin,also the neoplasms were recorded in internal organs of fish such as liver,stomach and ovary.Conclusions:Aetiology of such neoplasm’s are unknown,further more researches need to confirm the causative agent for this type of neoplasm.展开更多
Objective:To carry out the survey of prevalence of gastric tumour in Sardinella longiceps of Parangipettai coastal waters,south east coast of India for a period of one year.Methods:Fish samples were directly collected...Objective:To carry out the survey of prevalence of gastric tumour in Sardinella longiceps of Parangipettai coastal waters,south east coast of India for a period of one year.Methods:Fish samples were directly collected from fishermen and also from auction yard.The prevalence of gastric tumour,gross pathology,radiography,histopathology,morphometric and meristic characters were investigated.Results:A total of 31 stomach tumour infected individuals were collected during the study period.The gross morphology showed distended abdomen and the radiograph exhibited enlargement of stomach.Autopsy of the infected fish exhibited reddish multilobed tumourous growth on the stomach.Histologically,the tumour lesions were characterized by the differential rate of glandular epitheloid and mesenchymal cells,polymorphic and hyperchromatic nuclei and mitotic activity.No evidence of local invasion and distinct metastases were observed in these cases.Conclusions:The tumours were diagnosed as gastric adenoma,myofibroblastoma,lipoma and fibrosarcoma.Among them myofibroblastoma is highly prevalent.展开更多
基金Supported by MOES major project(Ref.No.36/OOIS/SIBER/07)UGC major project(F.No.39-569/2010(SR)).
文摘Objective:To study the prevalence and mean intensity of copepod parasite Lernaeenicus polynemi infestation on Eleutheronema tetradactylum from Pazayar,Tamil Nadu,southeast coast of India.Methods:The fish was collected from Pazhayar landing centre from January to December 2012 and their biometric measurements were examined.Toal number of infected fish and total number of parasites were recorded.Results:Higher prevalence and mean intensity of infestation of 35.23%and 3.1 were respectively reported during monsoon season of 2012.The parasitic infestations were scattered over the entire body of the host and targeted the different internal organs such as liver and the dorsal aorta.The highest intensity was reported to be 66 parasites in a single host.Conclusions:Due to the heavy parasitic attack the fish will suffer and its economical value or the marketability may reduce.
基金Supported by the Ministry of Environment and Forest,Government of India,New Delhi.The project titled“Prevalence of tumours in food fishes of Tamil Nadu coast”(D.O.No.22-31/2010-CS-I).
文摘Objective:To identify fish tumour associated bacteria.Methods:The marine fish Sphyraena jello with odontoma was collected from in Tamil Nadu(Southeast India),and tumour associated bacteria were isolated.Then the isolated bacteria were identified based on molecular characters.Results:A total of 4 different bacterial species were isolated from tumour tissue.The bacterial species were Bacillus sp.,Pontibacter sp.,Burkholderia sp.and Macrococcus sp.,and the sequences were submitted in DNA Data Bank of Japan with accession numbers of AB859240,AB859241,AB859242 and AB859243 respectively.Conclusions:Four different bacterial species were isolated from Sphyraena jello,but the role of bacteria within tumour needs to be further investigated.
基金Supported by Ministry of Environment and Forest(MoEF),Government of India,New Delhi for financial support of the project titled“Prevalence of tumours in food fishes of Tamil Nadu coast”(D.O.No.22-31/2010-CS-I.).
文摘Objective:To describe and observe four types of neoplasms on different parts(external and internal organs)of an Asian sea bass(Lates calcarifer).Methods:The sample was collected from local fish landing center(south east coast of India).Histopathology of normal and tumour tissues were analyzed.Results:A total of 83 tumour masses(neoplasm)were recorded on the fish skin,also the neoplasms were recorded in internal organs of fish such as liver,stomach and ovary.Conclusions:Aetiology of such neoplasm’s are unknown,further more researches need to confirm the causative agent for this type of neoplasm.
基金Supported by Ministry of Environment Forest and Climate Change(MoEF&CC),Government of India,New Delhi for financial support for the project entitled"Prevalence of tumours in food fishes of Tamil Nadu coast"(D.O.No.22-31/2010-CS-I).
文摘Objective:To carry out the survey of prevalence of gastric tumour in Sardinella longiceps of Parangipettai coastal waters,south east coast of India for a period of one year.Methods:Fish samples were directly collected from fishermen and also from auction yard.The prevalence of gastric tumour,gross pathology,radiography,histopathology,morphometric and meristic characters were investigated.Results:A total of 31 stomach tumour infected individuals were collected during the study period.The gross morphology showed distended abdomen and the radiograph exhibited enlargement of stomach.Autopsy of the infected fish exhibited reddish multilobed tumourous growth on the stomach.Histologically,the tumour lesions were characterized by the differential rate of glandular epitheloid and mesenchymal cells,polymorphic and hyperchromatic nuclei and mitotic activity.No evidence of local invasion and distinct metastases were observed in these cases.Conclusions:The tumours were diagnosed as gastric adenoma,myofibroblastoma,lipoma and fibrosarcoma.Among them myofibroblastoma is highly prevalent.
