scholarly journals First data on the Radiospongilla crateriformis (Potts, 1882) (Porifera: Spongillidae) from Nicaragua

2016 ◽  
pp. 103-107
Author(s):  
Juna Rueda ◽  
Francesc Mesquita-Joanes

Durante el desarrollo de un curso sobre la evaluación de la calidad biológica de las aguas continentales en León (Nicaragua), se recolectaron ejemplares de la esponja de agua dulce Radiospongilla crateriformis (Potts, 1882) (Porifera: Spongillidae), la cual se cita aquí por primera vez para el país. Los muestreos se realizaron durante la tercera semana de enero de 2016 en el río Los Aposentos. Este circula dentro del recinto del Jardín Botánico Ambiental (JBAUNAN-León). Se aportan datos sobre la autoecología de los ejemplares recolectados y se discuten ciertas diferencias morfológicas con respecto a otras citas en países cercanos. In the framework of a field course on water quality assessment in León (Nicaragua), we collected specimens of the freshwater sponge Radiospongilla crateriformis (Potts, 1882) (Porifera: Spongillidae), which is herein cited for the first time for this country. Samples were obtained during the third week of January 2016 from river Los Aposentos. This stream runs through the Environmental Botanical Garden (Jardín Botánico Ambiental, JBA-UNAN-León). We present data on the species autoecology and discuss morphological differences with previous findings from surrounding areas.

2019 ◽  
Vol 70 (8) ◽  
pp. 2889-2896 ◽  
Author(s):  
Petra Ionescu ◽  
Violeta Monica Radu ◽  
Gyorgy Deak ◽  
Elena Diacu ◽  
Ecaterina Marcu ◽  
...  

The quality assessment of the aquatic environment from some freshwater resources situated in Bucharest and Ilfov County - Romania has been performed in an extended study and data obtained will be presented in several papers. This first paper presents a case study on water quality assessment of the Mogosoaia, Herastrau and Pantelimon Lakes, lakes built on the Colentina River. Two water and sediment sampling campaigns were conducted in the summer and autumn 2016, 29 specific parameters were determined for water samples and heavy metals content for sediment samples. The obtained results for water samples allowed the classification of lakes water in quality classes and the heavy metals values for sediments were compared to the standards of chemical quality, according to the national legislation M.O. 161/2006. Furthermore, for an overview of water quality, the Water Quality Index (WQI) method was used, where the indicators were grouped into two categories: the first category took into account 18 quality parameters (WQI-1) and the second considered heavy metals content (WQI-2).


2019 ◽  
Vol 70 (10) ◽  
pp. 3638-3643
Author(s):  
Petra Ionescu ◽  
Alexandru Anton Ivanov ◽  
Violeta Monica Radu ◽  
Gyorgy Deak ◽  
Elena Diacu ◽  
...  

The water quality assessment of Arges River and its tributary Dambovita River is presented in this paper as second part of an extended study on the evaluation of some freshwater resources quality located in Bucharest and surrounding areas [1]. This case study was carried out mainly for the water in the confluence area of Arges and Dambovita rivers, where a water and sediment sampling campaign was organized in June 2018. 21 quality parameters were determined for water samples and for the sediment samples the heavy metals content was evaluated. The results of the water samples analysis allowed the framing in quality classes, and for sediment samples the values obtained were compared with the chemical quality standards for sediments, according to the current national regulations. Following the assessment, it was established that the freshwaters in both Arge� River and Dambovita River, downstream the confluence with the Dambovita River are loaded with different pollutants, such as organic substances and nutrients leading to a lower water quality classification.


2019 ◽  
Vol 70 (10) ◽  
pp. 3638-3643

The water quality assessment of Arges River and its tributary Dambovita River is presented in this paper as second part of an extended study on the evaluation of some freshwater resources quality located in Bucharest and surrounding areas <1>. This case study was carried out mainly for the water in the confluence area of Arges and Dambovita rivers, where a water and sediment sampling campaign was organized in June 2018. 21 quality parameters were determined for water samples and for the sediment samples the heavy metals content was evaluated. The results of the water samples analysis allowed the framing in quality classes, and for sediment samples the values obtained were compared with the chemical quality standards for sediments, according to the current national regulations. Following the assessment, it was established that the freshwaters in both Argeş River and Dambovita River, downstream the confluence with the Dambovita River are loaded with different pollutants, such as organic substances and nutrients leading to a lower water quality classification. Keywords: freshwater, water quality, pollution, Arges River, Dambovita River


2011 ◽  
Vol 4 (5) ◽  
pp. 70-72
Author(s):  
Cristina Roşu ◽  
◽  
Ioana Piştea ◽  
Carmen Roba ◽  
Mihaela Mihu ◽  
...  

2009 ◽  
Vol 45 (5) ◽  
pp. 3-14
Author(s):  
N. G. Sheveleva ◽  
I. V. Arov ◽  
Ye. A. Misharina

Author(s):  
B.V. Suresh Kumar ◽  
◽  
R.K. Sunil Kumar ◽  
K.N. Prakash Narasimha ◽  
◽  
...  

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