Unusual foaming along Thiruvananthapuram coast

Unusual foaming was observed on 18 and 19 October 2009 along the coast of Thiruvananthapuram, Kerala, India. A similar phenomenon was reported in 1999, which suggested that foaming in coastal waters of the Northern Adriatic, the English Channel and beaches of France, the Netherlands and Germany was due to the mucilage formed from the extracellular polymeric substances

Vizhinjam Marine Aquarium Haven for Marine Ornamentals

There has been a huge growth of public aquaria since the opening of the first public aquarium display in the Fish House at the London Zoo in t 826, and particularly in the past 20 years (Hall and Douglas 2003)

Antibacterial activity of aqueous extract from selected macroalgae of southwest coast of India

Aqueous extract of seven species of marine macroalgae were screened for their antimicrobial potency against ten pathogenic bacterial strains. Ulva fasciata, Gracilaria corticata, Sargassum wightii and Padina tetrastromatica showed significantly higher activity against 70% of the tested bacterial isolates. The maximum zone of inhibition was noted for the red alga G.corticata against Proteus mirabilis (17mm) and brown alga P. tetrastromatica against the pathogens Staphylococcus aureus and Vibrio harveyi (15mm). The general trend of inhibitory activity was higher towards Gram negative bacteria

Polymicrobial skin lesions in the red spot emperor, Lethrinus lentjan (Lacepede 1802) during mass incursion towards shore along Kanyakumari coast, south India

Mass incursion of fishes with polymicrobial skin lesions, fin erosions and scale loss was recorded in the red spot emperor Lethrinus lentjan (Lacepede 1802) along the Kanyakumari coast, south India during August 2009. An estimated 2.5 t of fish, mostly the red spot emperors were found to migrate in live condition to the shore areas in a stressful state. Microbiological analyses of tissue from sampled fishes revealed three distinct types of bacterial colonies forming 5.2 x 105 CFU g-1 of the infected tissues. The predominant bacterial colonies were characterized as Aeromonas sp. (70.0%) followed by Flavobacterium sp. (20%) and Vibrio sp. (10%). The Aeromonas isolate was highly susceptible to norfloxacin while the Flavobacterium and Vibrio isolates were susceptible to chloramphenicol. The Aeromonas and Vibrio isolates exhibited protease and amylase enzyme activities in vitro, suggesting their possible role in the progression of skin lesions and scale loss. The possibilities of ambient unknown stressors weakening the fish and subsequent infections by these bacterial isolates are discussed

On Q*s - regular spaces and Q*s - normal spaces

The notion of Q* - open sets in a topological space was introduced by Murugalingam and Lalitha [7]. We introduce the notion of Q*s - regular, Q*s - normal, s*Q* - normal and obtain some characterizations Q*s - regularity and Q*s – normality, s*Q* - normal

Anaesthesia mumps after total laparoscopic hysterectomy under general anaesthesia

Anaesthesia mumps is a rare clinical entity characterised by acute transient swelling of the parotid gland in postoperative period. In our case a 58 years obese lady developed left sided parotid swelling which was managed conservatively and settled without any sequelae. In this article we discuss possible causes, differential diagnosis and treatment for this condition. This is to increase awareness about this relatively unknown condition amongst anaesthetist and surgeons and to avoid unnecessarily apprehension in post-operative period

POST-HARVEST SOIL TEST VALUES (PHSTVS) PREDICTION EQUATION FOR A PEARL MILLET BASED CROPPING SEQUENCE ON AN INCEPTISOL

Analyzing soil samples for prescribing soil test based fertilizer doses after each crop in a sequence is time, labour and energy consuming and involves additional cost. With a view to develop post-harvest soil-test values (PHSTVs) prediction equations with multiple linear regression, field experiments were conducted during 2015-16 by adopting Inductive cum Targeted yield model, on an Inceptisol (Vertic Ustropept) with pearl millet under integrated plant nutrition system (IPNS). The experiment was laid out in a fractional factorial design comprising twenty-four treatments. When grain yield was considered, the predictability values of KMnO4-N, Olsen-P, and NH4OAc-K under NPK plus FYM @ 12.5 t ha-1 treatment were 98.4, 97.5, and 98.1%, respectively. When uptake was considered, the predictability values of KMnO4-N, Olsen-P, and NH4OAc-K under NPK plus FYM @ 12.5 t ha-1 treatment were 98.4, 97.6, and 98.1%, respectively. Significant R2-values (>0.65) were recorded for these regression equations which could be used with confidence for the prediction of post-harvest KMnO4- N, Olsen-P and NH4OAc-K. The data on observed and predicted soil test values of available N, P and K were in good agreement with each other, proving the validity of the post-harvest soil test values prediction equations as evidenced by highly significant correlation

Design of low-cost indigenous recirculating aquaculture systems (RAS) for broodstock maturation of marine fishes

Maturation of most coastal fishes may well be achieved if the animals are maintained in good quality seawater, provided they are well fed and reared without the stress of overcrowding and disturbances. RAS provides perfect opportunity to manipulate environmental conditions that are critical in maturation processes such as temperature, photoperiod, nutrition and other water quality parameters in addition to facilitating observation of the behaviour of fishes and do various husbandry steps. There is a need for the development of cost-effective, economically viable systems that minimize the environmental impact while at the same time ensuring optimal rearing conditions. Present article describes design and operation of low-cost RAS systems developed by ICAR-CMFRI for broodstock development of marine fishes, which include 30000 to 2000 l FRP systems with mechanical, biological filtration sub systems including disinfection, temperature control and photoperiod manipulation, using equipment such as, proteins skimmer, UV filters, chillers, biological filter cabinets and LED lighting with timer control