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| Registros recuperados: 23 | |
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| Romero López, T.. |
| The present paper involves their results in the pollutant contributions to the aquatic ecosystems according to the products processed in different productive facilities of the Cuba Island, and concerning to the most significant fishing resources as lobster, white shrimp, tuna, shark, snapper, mackerel, jack and bill fish. The polluting loads in 12 years (between 1955 and 1999) respond to the indicators BOD, QOD, TP, TNK and N-NH4. The captures for those years were approximately between 3 950 and 23 970 tons, with fluctuations of BOD loads between 56 and 342 tons and of DQO between 111 and 676 tons. The principal nutrients contribution was the nitrogen, followed by the phosphorous and finally the ammonium, representing a total contribution of 136,3; 52,7... |
| Tipo: Proceedings Paper |
Palavras-chave: Fishery industry; Waste water; Environmental impact; Waste water; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_24927; Http://aims.fao.org/aos/agrovoc/c_24420. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2083 |
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| Arias, J.; Zea, S.; Newmark, F.; Santos-Acevedo, M.. |
| As a contribution to the biological knowledge about the sea fan Gorgonia ventalina and the use of this information as a tool to generate conservation and management strategies for this threatened species, a study about its annual growth rate, in different reef areas in Santa Marta and the National Natural Park Tayrona in the Colombian Caribbean took place. Manual measurements of 35 colonies were analyzed and images of 11 colonies were recorded in the beginning and in the end of the field stage. The annual growth rate varies among colonies and areas where measurements were taken. The average annual growth rate obtained with both of the methods was high and oscillated between 7.6 and 8.1 cm/year in height and between 6.9 and 8.3 cm/year wide. The total area... |
| Tipo: Journal Contribution |
Palavras-chave: Antifouling substances; Environmental impact; Fans; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_24420. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/1975 |
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| Valencia T., M.. |
| Durante los veranos australes de 1995-1996 y 1997-1998 se llevó a cabo, en Ensenada Guayaquil, cuerpo de agua aledaño a Punta Fort William, Isla Greenwich, del archipiélago de las Shetland del Sur, lugar del asentamiento de la Estación Científica "Pedro Vicente Maldonado", estudios químicos de la calidad de las aguas tendientes a determinar el eventual impacto que las actividades humanas pudieran ocasionar sobre tal ecosistema. Se presenta información acerca de las condiciones de oxigenación de las aguas, temperatura y salinidad de las mismas, la capacidad nutricia en relación con la concentración de micronutrientes inorgánicos así como información acerca de la presencia de hidrocarburos del petróleo disueltos y dispersos y, para establecer la efectividad... |
| Tipo: Journal Contribution |
Palavras-chave: Environmental impact; Water quality; Hydrocarbons; Waste water; Dissolved oxygen; Chemical analysis; Environmental impact; Water quality; Waste water; Dissolved oxygen; Hydrocarbons; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_24927; Http://aims.fao.org/aos/agrovoc/c_36106; Http://aims.fao.org/aos/agrovoc/c_3719. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/3850 |
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| Perigó Hernández, A.M.; Perigó Arnaud, E.; Montalvo, J.F.; Chang Corona, E.; César Manfarrol, M.E.; García, R.. |
| En la zona costera del municipio Bauta se encuentra la laguna costera el Doctor, cuya calidad se ha visto seriamente dañada por ser receptora de un considerable volumen de residuales crudos (alrededor de 8000 m3) originados por las actividades domésticas de de una Comunidad de alrededor de 5000 habitantes y otras instalaciones comerciales y vivienda que se desarrollan en la margen de la laguna, como consecuencia ocurrió masivas mortandades de peces derivado de las condiciones anóxicas de la laguna (Perigó, et al, 2003, Alcalde et al, 2003). El objetivo de este trabajo es actualizar el conocimiento sobre el estado de la calidad ambiental de la laguna El Doctor a través de variables de estado indicadoras de contaminación orgánica. |
| Tipo: Conference Material |
Palavras-chave: Coastal lagoons; Brackishwater pollution; Organic wastes; Environmental impact; Domestic wastes; Organic wastes; Environmental impact; Domestic wastes; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_35237; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_35241; Http://aims.fao.org/aos/agrovoc/c_1697. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2255 |
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| Martínez Canals, M.; Montalvo, J.F.; Miravet, M.E.; Lugioyo, M.; Loza, S.; Pérez, R.. |
| The evaluation of the possible environmental changes due to the anthropic impacts that have happened in the last years in this scenario and the redefinition of areas that suffer affectations were carried up. Any environmental alteration of this ecosystem, either of natural or human origin, can have an important economic and social repercussion. According to the proposed chemical and biological indexes, the waters of the Gulf of Batabanó presented mesotrophic conditions with tendency to the eutrofization in four fundamental areas. In the silts of the Gulf the values of organic carbon and sulphidric acid were characteristic of sediments with high concentrations of organic matter. In the coastal sector N, was determinate high concentrations of sulphidric acid... |
| Tipo: Conference Material |
Palavras-chave: Heavy metals; Environmental impact; Coastal waters; Water quality; Man-induced effects; Marine pollution; Heavy metals; Environmental impact; Water quality; Coastal waters; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_25205. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2254 |
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| Mancera-P., José E.; Vidal-V., Luis A.. |
| Entre los meses de julio y agosto de 1994 un fenómeno discontinuo de muerte masiva de peces se registró en aguas del complejo lagunar de la Ciénaga Grande de Santa Marta, Colombia. El primer evento se presentó del 15 al 19 de julio, el segundo alrededor del día 20 de agosto y el tercero entre el 26 y 31 del mismo mes. La presencia en altas concentraciones de la cianofita filamentosa Cf. Anabaenopsis sp., registrada en la literatura como altamente tóxica, podría estar relacionada con las causas del primer evento. Un incremento en las concentraciones de fósforo, y un posterior florecimiento de nano y picoplancton, especialmente cianofíceas y algas flageladas, explicaría en parte las condiciones hipóxicas y anóxicas observadas en el tercer evento, las cuales... |
| Tipo: Journal Contribution |
Palavras-chave: Ecology; Phytoplankton; Chemical analysis; Environmental impact; Coastal lagoons; Estuaries; Ecology; Phytoplankton; Environmental impact; Estuaries; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_1697. |
| Ano: 1994 |
URL: http://hdl.handle.net/1834/3787 |
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| Koedam, N.; Dahdouh-Guebas, F.; De Wulf, R.; Tack, J.; Obade, P.T.. |
| Historic environmental, faunal, floral and socioeconomic data of Gazi Bay in coastal Kenya were collated and integrated into a GIS environment and data of impacts due to various factors were then related to remotely sensed data. Rhizophora mucronata, a valuable mangrove species, was investigated. Very low values of basal area (7.7 m2/ha and 4.9 m2/ha) and complexity indices (1.86 and 1.12) at Makongeni and Kinondo 1, respectively, reflected intense human pressure in these areas. Areas that were easily accessible or close to human settlements appeared more vulnerable. Accrued information from a socioeconomic survey carried out over the same period corroborates the hypothesis that human influence was a major contributor to these changes. Historic aerial... |
| Tipo: Journal Contribution |
Palavras-chave: Ecology; Environmental monitoring; Mangroves; Fauna; Satellite imagery; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_24420. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/1087 |
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| Rivas-Rodríguez, L.; Martínez-Iglesias, J. C.; Sánchez-Noda, R.; Areces-Mallea, A. J.; Rodríguez-Quintana, Y.. |
| Conocer como el hombre ha impactado las zonas de plataforma marino costera I, II y III, es el principal objetivo del presente trabajo. Se inventariaron y evaluaron un total de 382 impactos, de ellos 302 eran negativos, 74 positivos y 6 neutros. Dichos impactos estaban recogidos en 11 Estudios de Evaluación de Impacto Ambiental. Es importante aclarar que los resultados obtenidos se restringen solo a la información contenida en estos estudios. Para la evaluación se empleó la Matriz de Evaluación Rápida de Impactos Ambientales (RIAM). Los resultados permitieron establecer que los impactos ambientales negativos residuales más importantes fueron: afectación a la fauna, a los ecosistemas marino – costeros, al suelo, al hábitat natural, a las aguas... |
| Tipo: Journal Contribution |
Palavras-chave: Environmental impact; Environmental factors; Environmental impact; Environmental factors; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_2594. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4056 |
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| 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 |
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| Hénocque, Y.; Denis, J.. |
| This second volume of a guide to integrated coastal zone management opens a new dimension by discussing the processes involved in a more complete and dynamic way than the first, To fulfil1 this requirement, an expanded work group, drawing upon the knowledge of experts in political science, economics, and sociology, devoted over two years of effort (1999 - 2001) to its completion, following a disciplined working method. A dual principle prevailed in the application of this method. On one hand, it prescribed an approach structured as a series of steps, and on the other, it demanded that real situations be brought to light, emphasizing case studies of experience with or analysis of coastal management. |
| Tipo: Book |
Palavras-chave: Marine Environment Management; Coastal zone; Ecological zonation; Ecosystem management; Environmental factors; Environmental impact; Environmental monitoring; Environmental surveys; Environmental assessment; Marine ecology; Marine environment; Marine sciences; Ecological zonation; Environmental factors; Environmental impact; Environmental monitoring; Marine environment; Environmental assessment; Marine ecology; Marine sciences; Http://aims.fao.org/aos/agrovoc/c_2465; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_37751; Http://aims.fao.org/aos/agrovoc/c_4609; Http://aims.fao.org/aos/agrovoc/c_4613. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/2806 |
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| Mahmoudi, E.; Beyrem, H.; Boufahja, F.; Essid, N.; Hedfi, A.; Aissa, P.. |
| Dix stations côtières ont été prospectées dans la lagune de Bizerte en hiver 2001 pour étudier l’impact des conditions environnementales sur les plans morphométrique, trophique et de maturité des nématodes méiobenthiques. Nos résultats montrent que la croissance en largeur des nématodes libres a été proportionnelle aux charges sédimentaires en fraction fine et en métaux et ce parallèlement à l’individualisation de quatre morphotypes nématologiques. D’autre part, la structure trophique de la nématofaune est liée à la turbidité et aux concentrations des eaux en nitrites. En effet, la proportion en détritivores sélectifs, principalement bactériophages, au sein des communautés nématologiques, est positivement corrélée à la concentration des eaux en nitrites et... |
| Tipo: Journal Contribution |
Palavras-chave: Environmental effects; Feed composition; Indicator species; Pollution monitoring; Sedimentation; Sexual maturity; Turbidity; Nematoda; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_5112; Http://aims.fao.org/aos/agrovoc/c_24420. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/4156 |
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| Registros recuperados: 23 | |
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