|
|
|
| Registros recuperados: 28 | |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Martinez Canals, M.; Lugioyo Gallardo, G.M.; Loza Alvarez, S.; Garcia, I.; Cesar, M.E.; Chang, E.; Esponda, S.; Sanchez, M.; Nuñez, R.. |
| Una de las causas que puede haber incidido de forma negativa en las poblaciones de langosta en el Golfo de Batabanó, son los cambios en la calidad ambiental del medio. Por tal motivo, se estudia el comportamiento de un conjunto de variables abióticas y bióticas y se compara con la información histórica existente que se remonta a la década de los años ’60. El estudio abarca dos matrices, aguas y sedimentos de fondo, en las especialidades de química, microbiología y fitoplancton. La salinidad mostró una baja variabilidad y valores elevados con una media de 38.64 ups, lo cual es de esperar teniendo en cuenta la gran sequía que sufrió el País durante muchos meses. El oxígeno disuelto mostró concentraciones normales para este tipo de ecosistema y valores por... |
| Tipo: Journal Contribution |
Palavras-chave: Water quality; Water quality; Http://aims.fao.org/aos/agrovoc/c_16061. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/3401 |
| |
|
| |
|
| |
|
| |
|
|
| Pérez Santos, I.E.; Arencibia Carballo, G.; Capetillo Piñar, N.; Isla Molleda, M.. |
| In this work the result of the project “Determination of the environmental impact on aquaculture in the coastal zone" is presented. Where there were sampled more than 28 points. The water quality of the ecosystems is studied around the shrimp farms like coastal lagoons, rivers and the coastal area, where the shrimp farm get the water from, and at the same time the waste water of the process is spilled. The obtained values of the analisis in water and silts give a valuation of the environmental state of the area; revealing that the lagoon Las Playas is in a not well environmental state, (salinity of 47 ppt, DQO between 3,26 and 6,14 mg/L, N-NO3 700 - 900 µg/L, ammonium 36 - 148 µg/L and silicates between the 1600 and 3400 µg/L) and silts (carbon and... |
| Tipo: Journal Contribution |
Palavras-chave: Water quality; Shrimp culture; Environmental impact; Ecosystems; Coastal zone; Water quality; Environmental impact; Ecosystems; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2482. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/1884 |
| |
|
| |
|
|
| Palacios, C.; Burgos, L.. |
| Se analiza los datos tomados en el área marino costera de tres importantes islas de Galápagos como son: Bahía Academia-Santa Cruz, Caleta Aeolian-Baltra y Puerto Villamil-Isabela, durante los meses de junio y julio del 2007, considerando la distribución superficial de los parámetros físicos, químicos en cada una de las áreas. Se efectúa el análisis comparativo de las concentraciones promedios y la calidad microbiológica con los límites permisibles establecidos en la Legislación Secundaria Ambiental, concluyendo en general, que la calidad del agua está acorde con la vida marina, pero que a pesar de no presentar mayores problemas de contaminación, existen área muy puntuales que ameritan mayor cuidado y seguimiento para preservar y conservar estas islas que... |
| Tipo: Journal Contribution |
Palavras-chave: Water quality; Microbiological analysis; Physical properties; Data processing; Water quality; Microbiological analysis; Physical properties; Data processing; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_25302; Http://aims.fao.org/aos/agrovoc/c_13328; Http://aims.fao.org/aos/agrovoc/c_10289. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3369 |
| |
|
| |
|
| |
|
|
| Farag, A.; El-Shenawy, M.; Zaky, M.. |
| During the course of 7 years (1998-2004), five field trips were performed annually in January, march, May, July and September. 1400 water samples (200 samples/year) were collected from 40 coastal sites covering the recreational areas as well as different hot spots and some protectorate areas. Hydrochemical parameters including temperature, salinity, pH and dissolved oxygen as well as bacteriological parameters including total coliforms, E. coli and fecal streptococci were investigated. Inverse relationships were observed between salinity and each of total coliforms (TC) (r = -0.149, P ≤ 0.05) and E. coli (EC) (r = -0.147, P ≤ 0.05) in the Suez Gulf, whereas in Red Sea there was an inverse relationship between temperature and fecal streptococci (FS) (r =... |
| Tipo: Journal Contribution |
Palavras-chave: Environmental Study (Micobiology Study); Water quality; Recreational waters; Water quality; Http://aims.fao.org/aos/agrovoc/c_16061. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/1461 |
| |
|
| |
|
| |
|
|
| Boukef, I.; El Bour, M.; Bejaoui, B.; Harzallah, A.; Belhassen, M.; Mrouana, R.; Mejri, S.; Boudabous, A.. |
| La présente étude est effectuée dans le but d’évaluer l’effet des facteurs du milieu sur la distribution des populations bactériennes entériques dans un milieu lagunaire : la lagune de Bizerte. Un échantillonnage saisonnier, (novembre 2004, février 2005, mai 2005 et août 2005), portant sur 41 stations couvrant toute la lagune ont été réalisés. Les analyses bactériologiques effectuées ont concerné l’eau et le sédiment. Les paramètres physico-chimiques de l’eau ont été mesurés in-situ simultanément aux différents échantillonnages. Aussi, les paramètres climatiques ont été fournis par une station météorologique située à proximité de la lagune. Les résultats obtenus ont révélé que les charges en bactéries sont plus importantes dans les sédiments que dans... |
| Tipo: Journal Contribution |
Palavras-chave: Abiotic factors; Ecosystems; Geographical distribution; Pollution monitoring; Public health; Water quality; Geographical distribution; Ecosystems; Public health; Water quality; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_2482; Http://aims.fao.org/aos/agrovoc/c_6349; Http://aims.fao.org/aos/agrovoc/c_16061. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/3696 |
| |
|
|
| Martínez Canals, M.; Montalvo, J.F.; Miravet, M.E.; Lugioyo, M.; Loza, S.; Pérez, R.; García, I.; Rodríguez, A.; Cesar, M.E.; Esponda, S.; Sánchez, M.; Delgado, V.. |
| The anthropogenic affectation was evaluated on the coast N of the Gulf of Batabanó in May 2003 (corresponding to the provinces of Matanzas and Havana), in areas located in the line of the coast. The results were compared with the historical information of the sector. In the coast N and the Ensenada of the Broa, the parameters oxygen saturation, DBO5 and DQO showed characteristic high values of eutrofication. The biggest contribution in the Cianoficies was in the near coastal areas to sources of organic contamination. In the case of the nutrients they show specific data of mesothrofic waters with tendency to the eutrofization and the silts presented a high affectation for toxic metals. The area near to Guanímar is distinguished to present conditions of... |
| Tipo: Proceedings Paper |
Palavras-chave: Phytoplankton; Water quality; Primary production; Chemistry; Environmental monitoring; Phytoplankton; Water quality; Primary production; Chemistry; Environmental monitoring; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_34329; Http://aims.fao.org/aos/agrovoc/c_1522; Http://aims.fao.org/aos/agrovoc/c_37876. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2172 |
| |
| Registros recuperados: 28 | |
|
|
|
