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| Registros recuperados: 16 | |
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| Simanca, J.; Arriaza, L.. |
| This work, it is applied a unidirectional and stationary model for estimating the dissolved oxygen distribution in the area of the Gulf of Batabanó, starting from the influence of physical-biological parameters (marine currents, temperature, salinity, photosynthesis and respiration). In this first approach, estimates of the dissolved oxygen concentration are obtained for Ensenada de la Broa, with an error of 0.2693 mg/L, while for the rest of the Gulf the estimate error oscillated between -4.13 y -4.69 mg/L. Consequently, it is concluded that the pattern is efficient for the estimate of dissolved oxygen concentration in Ensenada de La Broa, while for the rest of the Gulf it is not enough the consideration of primary production in the water column as only... |
| Tipo: Conference Material |
Palavras-chave: Dissolved oxygen; Water quality; Environmental factors; Dissolved oxygen; Water quality; Environmental factors; Http://aims.fao.org/aos/agrovoc/c_36106; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_2594. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2227 |
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| Gómez-López, D.I.; Albis-Salas, M.R.; Duque-Nivia, G.. |
| La distribución espacial de los pastos marinos depende de las condiciones ambientales presentes, destacándose la profundidad, temperatura, salinidad, sustrato y nutrientes. La plataforma continental de La Guajira presenta extensas praderas de pastos marinos dominadas por Thalassia testudinum, las cuales representan más del 80 % del total nacional. Con el fin de caracterizar su distribución en función de la profundidad, materia orgánica y tipo de sustrato, se midieron algunas variables estructurales de T. testudinum en 15 estaciones situadas en uno de los tres siguientes intervalos de profundidad: somero (0-2 m), medio (2-4 m) y profundo (>4 m). Mediante cuadrantes de 20 x 20 cm se determinó la densidad de vástagos,... |
| Tipo: Journal Contribution |
Palavras-chave: Environmental factors; Sea grass; Environmental factors; Http://aims.fao.org/aos/agrovoc/c_2594. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4023 |
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| Gualancañay, E.. |
| Salinas por su posición en la península de Santa Elena está situada en el límite noroeste del Golfo de Guayaquil y, debido a que la línea costanera se curva hacia el noroeste y se coloca por ello fuera de la acción de la corriente de Humboldt, aumenta progresivamente la precipitación hacia el norte (PMRC, 1995). Se realiza el estudio de las especies de foraminíferos bentónicos del área de Salinas y se hace la relación de las especies más frecuentes: Elphidium articulatum, f, typica; reophax cf. guttiferus; Rotalia cubensis y Textularia secasensis con los factores ambientales: salinidad, temperatura, pH, oxígeno, profundidad, turbidez, alimentación y sustrato. |
| Tipo: Journal Contribution |
Palavras-chave: Foraminifera; Benthos; Environmental factors; Geographical distribution; Benthos; Environmental factors; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_5083. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/2290 |
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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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| Barretto, A.C.. |
| The age-class distribution of the Brazilian flathead Percophis brasiliensis in relation to environmental variables in spring and winter, and the growth of both sexes, were studied in the SW Atlantic Coastal System (SACS)(34°S-31° S). Growth was studied from 1449 individuals (n=853, spring (1998 + 2000), n=596, winter (2004)) to which size (TL), sex, and age were determined. Age was determined considering that an opaque plus a hyaline band (present in the transverse section of the sagitta otolith) represented 1 year of life. The age-class distribution in spring and winter was established through hierarchical clustering and non-metric multi-dimensional scaling (nMDS analysis). This analysis grouped sampling stations (n=109, spring 1998; n=160, winter 2004)... |
| Tipo: Theses and Dissertations |
Palavras-chave: Age groups; Age composition; Environmental factors; Geographical distribution; Population structure; Growth; Environmental effects; Coastal waters; Age composition; Environmental factors; Geographical distribution; Population structure; Growth; Age groups; Coastal waters; Http://aims.fao.org/aos/agrovoc/c_29093; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_28628; Http://aims.fao.org/aos/agrovoc/c_25205. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/3017 |
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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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| Jaureguizar, A.J.. |
| The spatial and temporal changes of the fish assemblage areas composition at the coastal ecosystem of the western South Atlantic (34 degree -41 degree S) during six springs (1981, 1983, 1994, 1995, 1998 and 1999), were examined. For each assemblage area the most common species and those species that discriminate it from adjacent assemblages areas within years, were identified. Within each area, also resident (common in all years) and facultative (contributing to less than 90% of similarity within any year) species, were studied. Also were identified what parameters control the main structuring of the fish community on the spatial and temporal patterns. In order to determine how the environmental factors influenced the fish community structure, the... |
| Tipo: Theses and Dissertations |
Palavras-chave: Marine fish; Community composition; Coastal fisheries; Ecosystem management; Species diversity; Coastal zone; Ecological zonation; Environmental factors; Assemblages; Ecological zonation; Environmental factors; Coastal fisheries; Species diversity; Http://aims.fao.org/aos/agrovoc/c_2465; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_1696; Http://aims.fao.org/aos/agrovoc/c_33954. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/1469 |
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| Mailu, A.M.. |
| The paper presents preliminary data collected in an assessment of the social, economic and environmental impacts of water hyacinth in the Lake Victoria Basin. A summary of the status of control and strategies for the future is given. The report draws on field observations made, studies through interviews of affected communities and organisations, personal communications and published reports by scientists in the region. Lake Victoria, the world’s second largest freshwater body, supports an estimated 25 million people living in the Basin, with an estimated gross economic product of US$3–4 billion annually, mainly from subsistence agriculture and fishing in Kenya, Uganda, Tanzania, and parts of Rwanda and Burundi. The multiple activities in the Lake Victoria... |
| Tipo: Proceedings Paper |
Palavras-chave: Environmental conditions; Environmental factors; Environmental impact; Environmental protection; Freshwater pollution; Resource management; Environmental factors; Environmental impact; Environmental conditions; Environmental protection; Resource management; Http://aims.fao.org/aos/agrovoc/c_2594; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_32980; Http://aims.fao.org/aos/agrovoc/c_15898; Http://aims.fao.org/aos/agrovoc/c_6524. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/1292 |
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| Registros recuperados: 16 | |
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