Intraspecific Differences in Responses of Marsh Frog (Pelophylax ridibundus) Tadpoles Exposed to Environmentally Relevant and Acute Levels of Ammonium Nitrate Fertilizer

2010 ◽  
Vol 25 (3) ◽  
pp. 353-366 ◽  
Author(s):  
Handan Karaoglu ◽  
Bilal Kutrup ◽  
Hamdi Ogut
2018 ◽  
Vol 5 (1) ◽  
pp. 54-63
Author(s):  
Simeon Lukanov ◽  
Georgi Popgeorgiev ◽  
Nikolay Tzankov

AbstractWater frog mating calls from two localities were studied and analyzed. Recordings were made in the summer of 2010 at the Arkutino swamp near the town of Primorsko and at the Vurbitza River near the town of Momchilgrad. A total of 154 calls were analyzed and the results suggested the presence of both the Marsh frog (Pelophylax ridibundus) and the Levant frog (Pelophylax bedriagae) in both sites, with the former being more frequent in Vurbitza River, and the latter – in Arkutino. At Vurbitza, we also captured and measured 2 specimens, which morphological characteristics differed from P. ridibundus and matched those of P. bedriagae. These are the first localities for P. bedriagae in Bulgaria.


2020 ◽  
Vol 13 (4) ◽  
pp. 691-696
Author(s):  
D. L. Berzin ◽  
M. Ja. Chebotina ◽  
V. P. Guseva

2016 ◽  
Vol 170 ◽  
pp. 62-71 ◽  
Author(s):  
Halina Falfushynska ◽  
Lesya Gnatyshyna ◽  
Olga Fedoruk ◽  
Inna M. Sokolova ◽  
Oksana Stoliar

2019 ◽  
Vol 55 (8) ◽  
pp. 1041-1045 ◽  
Author(s):  
V. L. Vershinin ◽  
I. A. Sitnikov ◽  
S. D. Vershinina ◽  
A. G. Trofimov ◽  
A. A. Lebedinsky ◽  
...  

1994 ◽  
Vol 30 (9) ◽  
pp. 111-119 ◽  
Author(s):  
M. Buday

The paper deals with adsorption of ammonium ions from wastewater of ammonia and ammonium nitrate plant on cation exchange resins. The aim of the treatment was not only separation of ammonium ions but also their return to the technology of ammonium nitrate fertilizer. Therefore, it was desirable to obtain high concentration of eluate. The columns of cation exchangers were arranged in the so-called “coupled columns” technique. The results were obtained on the pilot scale (0.6 m3.h−1) and in full scale (50 −110 m3.h−1) plants. Nitric acid was used for the regeneration of the exhausted resins. Its concentration was in the range of 3.9 − 7.0 mol.1−1. The average ammonium concentration of the eluate was in the range of 0.95 − 2.35 mol.l−1. This parameter of the treatment process depended on the pH value of wastewater and on the concentration of the regenerant. The concentration of ammonium nitrate achieved in the eluate is sufficient for its utilization in the technology for the ammonium nitrate fertilizer production.


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