نتایج جستجو برای: planktons

تعداد نتایج: 54  

Journal: :CoRR 2017
Hakan Bilen Andrea Vedaldi

With the advent of large labelled datasets and highcapacity models, the performance of machine vision systems has been improving rapidly. However, the technology has still major limitations, starting from the fact that different vision problems are still solved by different models, trained from scratch or fine-tuned on the target data. The human visual system, in stark contrast, learns a univer...

Journal: :Journal of Marine Science and Application 2021

Abstract Monitoring the ecology and physiology of corals, sediments, planktons, microplastic at a suitable spatial resolution is great importance in oceanic scientific research. To meet this requirement, an underwater microscope with electrically controlled variable lens was designed tested. The captured microscopic images revealed their physical, biological, morphological characteristics. Furt...

2017
Kerstin Bitter Alexander Vlassakidis Mediha Niepel Daniela Hoedke Julia Schulze Konrad Neumann Annette Moter Jörn Noetzel

The objective was to compare the antibacterial effects of adjunctive disinfection using diode laser and gaseous ozone compared to the medical dressings calcium hydroxide (Ca(OH)2) and chlorhexidine gel (CHX-Gel) on Enterococcus faecalis biofilms in human root canals ex vivo. Root canals of 180 human extracted teeth were infected by E. faecalis and divided into 3 main groups (G): G1, control; G2...

A. R. Mirzajani, H. Khodaparast Sharifi O. Heidari

A biological study was conducted to find out about reproduction and feeding of G. lacustris in Neur Lake from northwest mountains of Iran. Plankton diversity, hydro-chemical factors and substrate characteristic were recorded monthly. Findings showed that reproduction period of this species was short and limited to May and the mean brood size was 10.2 ± 5.3 eggs per female. The hydro-chemical an...

A. R. Mirzajani , H. Khodaparast Sharifi , O. Heidari ,

A biological study was conducted to find out about reproduction and feeding of G. lacustris in Neur Lake from northwest mountains of Iran. Plankton diversity, hydro-chemical factors and substrate characteristic were recorded monthly. Findings showed that reproduction period of this species was short and limited to May and the mean brood size was 10.2 ± 5.3 eggs per female. The hydro-chemical an...

2008
C. Sarker

Seasonal variation of the plankton populations with some water quality parameters of Borobila beel, Rangpur district was carried out during July 2003 to June 2004. Total plankton ranged from 98.3×104 to 35.0×105 cells/l with mean values of 19.67±9.77×105 cells/l. A total of 51 genera of planktons were recorded belonging to Chlorophyceae, Bacillariophyceae, Cyanophyceae, Euglenophyceae, Dinophyc...

2010
Emmanuel E.O. Odjadjare Larry C. Obi Anthony I. Okoh

We evaluated the effluent quality of an urban wastewater treatment facility in South Africa and its impact on the receiving watershed for a period of 12 months. The prevalence and antimicrobial susceptibility of potential Listeria pathogens (L. ivanovii and L. innocua) and the physicochemical quality of the treated wastewater effluent was assessed, with a view to ascertain the potential health ...

Journal: :International Journal of Fisheries and Aquaculture 2023

This study was conducted to determine the trophic relationship of Clarias gariepinus, Parachanna obscura, and Oreochromis niloticus collected from Ogbese River, Ado Ekiti, South-Western, Nigeria between June September, 2017. The fish specimens were examined their stomach contents analyzed. Numerical, frequency occurrence volumetric methods employed in this study. result analysis showe...

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