Hatha, A A M; Vivekanandhan, A A; Julie Joice, G; Christol(Elsevier, May 28, 2004)
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Abstract:
Motile aeromonads isolated from the intestines of farm-raised freshwater fish such as Catla catla, Labeo rohita and
Ctenopharyngodon idella have been characterized to species level. Morphological and physiological grouping revealed 61%
Aeromonas hydrophila, 30% Aeromonas caviae, 7% Aeromonas sobria and 2% which remained unidentified. Hemolytic
activity was detected mostly in A. hydrophila, while only half of the A. sobria and A. caviae showed this activity. Antibiotic
resistance patterns of the strains revealed that they had acquired a relatively higher resistance to oxytetracycline, amoxycillin,
ampicillin, novobiocin and polymixin-B, implicating possible use of these antibiotics in the aquaculture systems.
Description:
International Journal of Food Microbiology 98 (2005) 131– 134
Euphrasia, C J; Dr.Madhusoodana,Kurup B(Cochin University Of Science And Technology, July 30, 2004)
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Abstract:
The previous faunistic studies were concentrated.on the taxonomical and zoogeo—
graphical aspects. These studies contributed to many new additions to
the fish fauna of Kerala meanwhile many species described earlier are
reported missing in recent years. Many fish species were collected only
once or twice by scientists. Detailed information on distribution, habitat,
feeding habits, reproduction, population size, etc. are available only with
regard to a very few fish species. A meaningful assessment on the
biodiversity status of the majority of freshwater fishes cannot be done for
want of sufficient data base and therefore, no suitable conservation and
management programmes are forthcoming for the protection and
preservation of the unique fish germplasm resources of Kerala. The
present study was conceptualised and undertaken mostly aiming at
bridging these gaps by generating an authentic data base on the
distribution, resource characteristics and bionomics of the threatened
fishes inhabiting the rivers of Kerala. Osteobrama bakeri (Day) is an endemic fish having a very highly restricted and fragmented distribution in Periyar, Chalakudy, Kabini,
Kallada and Meenachil rivers of Kerala. This belongs to vulnerable
category and is locally known as Mullanpaval which is valued as food
fish. Besides, due to its vibrant and attractive colouration and easiness
for domestication, it has great potential for being propagated as an
ornamental fish. Hitherto, no information is available on the bionomics
and resource characteristics of this species. Studies on detailed life
history traits are indispensable for fishery management, development of
captive breeding technique and implementation of various conservation
programmes. In the present study, a pioneer attempt is also made to
investigate the life history traits, resource characteristics, proximate
composition, etc. of O.baken'.
Description:
School of Industrial Fisheries
Cochin University of Science and Technology