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121.
Ackley C. Lane Joy Mukherjee Vera B. S. Chan Vengatesen Thiyagarajan 《Marine Biology》2013,160(8):1983-1993
Using CO2 perturbation experiments, we examined the pre- and post-settlement growth responses of a dominant biofouling tubeworm (Hydroides elegans) to a range of pH. In three different experiments, embryos were reared to, or past, metamorphosis in seawater equilibrated to CO2 values of about 480 (control), 980, 1,480, and 2,300 μatm resulting in pH values of around 8.1 (control), 7.9, 7.7, and 7.5, respectively. These three decreased pH conditions did not affect either embryo or larval development, but both larval calcification at the time of metamorphosis and early juvenile growth were adversely affected. During the 24-h settlement assay experiment, half of the metamorphosed larvae were unable to calcify tubes at pH 7.9 while almost no tubes were calcified at pH 7.7. Decreased ability to calcify at decreased pH may indicate that these calcifying tubeworms may be one of the highly threatened species in the future ocean. 相似文献
122.
123.
A field experiment has been conducted with two herbicides viz. oxadiazon [5-terbutyl-3-(2,4-dichloro-5-isopropoxyphenyl)-1,3,4-oxadiazol-2-one] and oxyfluorfen [2-chloro-1-(3-ethoxy-4-nitrophenyl)-4-(trifluoromethyl) benzene] at rates of 0.4 and 0.12 kg a.i. ha(-1), respectively, to investigate their effect on the growth and activities of phosphate solubilizing microorganisms in relation to availability of phosphorus as well as persistence of the herbicides in the rhizosphere soil of wetland rice (Oryza sativa L. variety IR-36). Application of herbicides stimulated the population and activities of phosphate solubilizing microorganisms and also the availability of phosphorus in the rhizosphere soil. Oxyfluorfen provided greater microbial stimulation than oxadiazon. Dissipation of oxyfluorfen and oxadiazon followed first order reaction kinetics with half-life (T(1/2)) of 8.8 and 12 days, respectively. Sixty days after application 0.5% and 3% of the applied oxadiazon and oxyfluorfen residues persisted, respectively, in the rhizosphere soil of rice. 相似文献
124.
Summary The water qualities of the River Ganga (The Ganges) over a short stretch from Swarupganj to Barrackpore (in West Bengal) have been determined and are compared with the values reported by the National Environmental Engineering Research Institute of India for the periods 1972–74 and 1979–80. The water quality is generally bad, but not at such alarming levels as previously determined by other agencies. Biochemical and chemical oxygen demand (BOD and COD) levels are high but within tolerable limits. Dissolved oxygen (DO) levels are are fairly high, indicating a reasonable self-purifying capability for the River Ganga. However, nutrient loads containing N and P have increased enormously in recent years. 相似文献
125.
Gogoi Mandakini Mukherjee Indranil Ray Chaudhuri Shaon 《Environmental science and pollution research international》2022,29(41):61838-61855
Environmental Science and Pollution Research - Presence of higher concentration of ammonia (> 0.5 mg/L) as well as nitrite (> 0.2 mg/L) in aquaculture environment create difficulties... 相似文献
126.
Mukherjee Arkadeep Ahn Young-Ho 《Environmental science and pollution research international》2022,29(23):34500-34514
Environmental Science and Pollution Research - The present study reports for the first time, a novel disinfection method that combines ultrasonication with a natural biocide terpinolene to inhibit... 相似文献
127.
Mukherjee Dip Ferreira Nuno G. C. Saha Nimai Chandra 《Environmental science and pollution research international》2022,29(31):47011-47024
Environmental Science and Pollution Research - 2,4,6-Trichlorophenol (2,4,6-TCP) is a common waste among the resulting chlorophenols generated in the production of common products classified as an... 相似文献
128.
Mal Payel Mukherjee Tuhin Upadhyay Abhay K. Mohanty Satyajit Pattnaik Ashok K. 《Environmental science and pollution research international》2022,29(38):57040-57053
Environmental Science and Pollution Research - Obesity is a term that has recently been referred to describe a condition in which a person has become a diseased vessel. Obesity’s internal... 相似文献
129.
Sen Rohit Sengupta Devashish Mukherjee Avinaba 《Environmental science and pollution research international》2022,29(41):62235-62247
Environmental Science and Pollution Research - Pathogens in our environment can act as agents capable of inflicting severe human diseases. Among them, the SARS-CoV-2 virus has recently plagued the... 相似文献