Abstract：
:Area wise, the measurement of LC50 for pollutants is of great value in predicting the safe concentration dose of the contaminant in the environment on different aquatic species. The lethality of toxic substances including heavy metals to the aquatic organisms are usually assessed by following static bio-assay or continuous flow methods. The toxicity tests for mercuric chloride (HgCl2), cadmium chloride (CdCl2) and their mixture on Notopterus notopterus was determined by using 96h LC50 concentration on fish N. notopterus which indicated that cadmium chloride (CdCl2) was less toxic and mercuric chloride (HgCl2) was most highly toxic. The order of toxicity is mercuric chloride > mixture > cadmium chloride. On the basis of gonadosomatic index the reproductive cycle of N. notopterus can be categorised into immature, developing, maturing, mature, ripe and spent stages. Liver forms important organ of the body, which has a role in the ovarian development. On exposure to heavy metals at sublethal concentration both GSI (gonadosomatic index) and HSI (hepatosomatic index) are reduced.
journal_name
J Environ Bioljournal_title
Journal of environmental biologyauthors
Sindhe VR,Kulkarni RSsubject
Has Abstractpub_date
2004-07-01 00:00:00pages
365-8issue
3eissn
0254-8704issn
2394-0379journal_volume
25pub_type
杂志文章abstract：:A study was conducted to find out the effect of different concentrations of Methyl parathion, an organophosphorus pesticide on soil bacterial population, soil respiratory activity and dehydrogenase activity, under laboratory conditions for a definite time period. The higher concentration (100 ppm) of Methyl parathion ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2009-05-01 00:00:00
abstract：:Two year (1998 and 1999) extensive survey was carried out in Mandya district hospital, Karnataka for a period of three years to monitor the prevalence of Staphylococcus aureus, Pseudomonas aeruginosa (S. aureus and Ps. aeruginosa) from the indoor air samples of operation theater labor room, children's ward, male and f...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-04-01 00:00:00
abstract：:Petrochemical industry have severe problem in disposing effluent and semisolid sludge despite repeated recycling. It requires further treatment prior to disposal of sludge. In recent years biological treatment methods received much attention and considered as an efficient low-cost treatment. One such method is vermicu...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：:The present investigation was carried out in Cachar district of Assam over a period of one year (January 2011 - December 2011) to understand the seasonal ecology of Acarina (Oribatida) in rice (Oryza sativa L.) cultivated fields. Population of Oribatida was found to be maximum during August 2011, both in no-tillage (6...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2015-01-01 00:00:00
abstract：:The present study aimed at elucidating the role of biosurfactant produced by yeast for the removal of Zn(II) ions from electroplating wastewater. The yeast species isolated from CETP, Vellore, Tamilnadu was identified as Cryptococcus sp.VITGBN2, based on molecular techniques, and was found to be potent producer of bio...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2014-11-01 00:00:00
abstract：:Excess of cadmium (Cd) induced changes in oxidative scenario and water status of plants viz.., total water content, specific water content, water saturation deficit (WSD) and transpiration of Brassica juncea plants grown in soil pot culture. Although lower and marginal levels of excess cadmium (100 and 250 ppm) improv...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:The aim of the present study was to isolate and screen actinomycetes from the mangrove sediments of Nizampatnam that are potent to produce L-asparaginase, an enzyme that catalyses the hydrolysis of asparagine. A total of 31 actinomycetes strains were isolated, of which 6 strains were positive for L-asparaginase. Sever...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2014-09-01 00:00:00
abstract：:Phaeophyscia hispidula (Ach.) Moberg, foliose lichen is widespread in Garhwal Himalayas and grows luxuriantly on different substratum in polluted as well as non polluted sites, where no other macrolichens are able to colonize. The elemental concentration and biochemical parameters in P. hispidula collected from Dehra ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2012-11-01 00:00:00
abstract：:Indian bullfrog Haplobatrachus tigerinus (Daudin) was exposed to sublethal dose (1/3 of LC50 I.E. 1.166 mg/kg) of fenvalerate technical grade and the effect was studied on the specific activity of acetyl cholinesterase in the different tissues of frog viz., brain, muscle, liver, kidney and testis at different time per...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2003-10-01 00:00:00
abstract：:The fungi Botryodiplodia theobromae and Rhizopus oryzae produce extracellular amylase when grown on a liquid medium containing 2% (WN) soluble starch or cassava starch residue(CSR) (as starch equivalent), a waste generated after extraction of starch from cassava, as the sole carbon source. Using CSR as the sole carbon...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2004-10-01 00:00:00
abstract：:Phytotoxic effect of diesel contaminated soil on germination rate of Lactuca sativa and Ipomoea batatas, at two concentrations ranges (0-6ml and 0-30ml), were investigated and compared. Diesel soil contamination was simulated and soil samples were taken from contaminated soil at 1, 5,10, 15, 25, 50, 75 and 100 days sh...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2015-11-01 00:00:00
abstract：:Of 44 species of seaweed screened for potential anti-Gardnerella vaginalis activity, 27 (61.4%) showed antimicrobial activity by the agar disk-diffusion method. Among them, the strongest activities against the pathogen were exhibited by Chlorophyta, with Ulva pertusa producing an 11.3-mm zone of inhibition at 5 mg dis...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2014-05-01 00:00:00
abstract：:A preliminary investigation was conducted to assess lignocellulolytic efficiency of crude extracts from three white-rot fungi, Pleurotus florida PF05 (PF), Pleurotus sajor-caju PS07 (PS) and Pleurotus eryngii PE08 (PE). The activities of CMC-ase, xylanase, beta-glucosidase, beta-xylosidase, laccase and Mn peroxidase i...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-11-01 00:00:00
abstract：:The present communication deals with the bacteriological examination of a pond water, which is being used as one of the sources of drinking water, by multiple tube fermentation test to detect the coliform bacteria. The test was performed sequentially in three stages: presumptive, confirmed and completed coliform test....
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：:A bacterium capable of biodegrading surfactant sodium dodecyl sulphate (SDS) was isolated from Antarctic soil. The isolate was tentatively identified as Pseudomonas sp. strain DRY15 based on carbon utilization profiles using Biolog GN plates and partial 16S rDNA molecular phylogeny. Growth characteristic studies showe...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2013-11-01 00:00:00
abstract：:Agricultural practices such as harvesting of crops cause the pathogens to disseminate in abundance and may cause diseases, like skin and respiratory allergies in an epidemic form. Also the farm workers were likely to be exposed repeatedly to high doses of fungal spore allergens from crop harvesting operations. At Srik...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:A bacterial strain (Bacillus cereus) with the ability to grow under conditions of high concentrations of lead was isolated from the industrial effluent collected from Peenya Industrial Area, Bangalore. The effect of lead on growth, protein content and lead biosorption capacity of Bacillus cereus was investigated. The ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2014-03-01 00:00:00
abstract：:The toxicity studies were conducted on the fish Channa punctata (Bloch) by employing static and continuous flow through systems, for the toxicant butachlor (technical grade+) and its commercial formulation+ (machete 50% EC). The LC50 values are 297.89 ppb and 247.46 ppb for 24 hr and 48 hr in static for technical and ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-04-01 00:00:00
abstract：:Seeds from three provenances of Pinus brutia were stratified for 0 or 45 d (days) at 4 +/- 1 degrees C and then germinated at 15 degrees C or 20 degrees C on filter paper saturated with polyethylene glycol solutions to provide water potentials of 0, -0.2 and -0.4 MPa (mega Pascal). Regardless of stratification, germin...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:Vegetative and reproductive phenology of Barringtonia acutangula, a floodplain tree species was studied at Chatla floodplain, Assam North East India with the aim to investigate vegetative and reproductive phenology under stressful environment of seasonal submergence and to assess the impact of environmental variables ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-03-01 00:00:00
abstract：:Traditional medicinal plants contain a wide variety of chemicals that have potent antibacterial activity. To find an alternative agent of overcoming the problems of methicillin-resistant Staphylococcus aureus (MRSA), the antibacterial mechanism of Ponciruss trifoliata against MRSA was investigated. Ethyl acetate (EtOA...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-01-01 00:00:00
abstract：:The present study analyzed sandstorms in Harbin, a city in Heilongjiang province in northeastern part of China. Based on the available ground observation data from meteorological stations in Harbin from 1961 to 2010, investigation was conducted for temporal and spatial distribution characteristics and weather conditio...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2015-07-01 00:00:00
abstract：:A laboratory investigation was undertaken to study the cyclic usage of field recommended doses of Bacillus thuringiensis israelensis (Bti), Bacillus sphaericus (Bsp) and combination of Bti and Bsp (half the recommended dose of each) with deltamethrin 2.8 EC to attain better control of mosquito larvae. To understand th...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2004-10-01 00:00:00
abstract：:Nickel chloride, heavy metal widely used in industries was investigated in the present study for histopathological studies in silver carp (Hypophthalmichthys molitrix). Fish were exposed for 10, 20 and 30 days in sublethal concentration of nickel 5.7 mg/l. The histopathological changes were studied in the gill, liver,...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2006-05-01 00:00:00
abstract：:Field experiments were conducted during Kharif 2012 and 2013 to evaluate the efficacy of different herbicides for weed management in cotton. Highest seed cotton yield (3537.3 kg ha(-1)) was recorded in weed free plots followed by pendimethalin @1.0 kg a.i ha(-1) as Pre.em.+quizalofopethyl @50 g a.i ha(-1) post-em at 2...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2015-07-01 00:00:00
abstract：:This investigation was conducted in an area of oil spill along the east coast of Thailand to examine the relations among cytochrome P450 1A activity in liver and PAHs in the bile of the tonguefish and petroleum hydrocarbons in the sediments. PAH sediment concentrations in the reference and oil spill areas were 5.03 +/...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-10-01 00:00:00
abstract：:Mealybugs (Hemiptera: Pseudococcidae) are major pests of a wide range of crops and ornamental plants worldwide. Their high degree of morphological similarity makes them difficult to identify and limits their study and management. In the present study, four Indian populations of mango mealybug (mango, litchi, guava fro...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-01-01 00:00:00
abstract：:Catla catla, under the sublethal stress of cadmium exhibited depletion in food utilization parameters and it was concentration dependent. Heavy metal intoxication was found to exhibit reduction in biomass. ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2002-04-01 00:00:00
abstract：:Microbial communities in three drinking water reservoirs, with different depth in Xi'an city, were quantified by phospholipids fatty acids analysis and multivariate statistical analysis was employed to interpret their response to different hydrostatic pressure and other physico-chemical properties of sediment and over...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2015-07-01 00:00:00
abstract：:Time is particularly critical for an oil spill occurring in the ocean as wind and current can rapidly spread the oil over a large area in a short time. Using the features of sensor surveillance system and mathematical trajectory models, the cooperation of surveillance and trajectory under oil spill emergency response ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-09-01 00:00:00
