|
|
|
| Registros recuperados: 41 | |
|
|
| López-Victoria, M.; Díaz, J.M.; Márquez, J.C.. |
| Tortuguilla is a small island off the southern portion of the Colombian Caribbean continental coast. It is surrounded by a shallow calcareous shelf which is overgrown by recent coral formations whose distribution, composition and zonation are herewith qualitative described for the first time. Observations and data collecting were conducted during two days from a boat by snorkeling at 63 stations and along manta tow transects. Despite the reduced area and the adverse turbidity and sedimentation conditions, at least 16 species of stony corals were registered (4 more to be confirmed), being Millepora spp. and Siderastrea siderea the most common. Five different coral assemblages were recognized. |
| Tipo: Journal Contribution |
Palavras-chave: Coral reefs; Composition; Coral reefs; Http://aims.fao.org/aos/agrovoc/c_1880. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/3240 |
| |
|
| |
|
|
| Caballero, H.; Alcolado, P.M.; Semidey, A.. |
| Coral reef condition north of the Havanan provinces (NW Cuba), an area with variable influence from human settlements and runoff, was assessed using the AGRRA methodology’s benthic biological indicators: live coral cover, coral density, maximum colony diameter, old and recent coral mortality, coral recruitment, Diadema antillarum density, and macroalgae cover. Coral communities at 11 reef crest and 22 forereef sites were sampled during 2004. The Shannon heterogenety and Pielou evenness indices were calculated. A total of 33 species of coral, larger than 10 cm in maximum diameter, were identified. The biological indicators analyzed showed significant differences among sites, which suggest a marked heterogeneity in environmental conditions along the study... |
| Tipo: Journal Contribution |
Palavras-chave: Species diversity; Abundance; Coral reefs; Coral reefs; Species diversity; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_33954. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3521 |
| |
|
|
| Alcolado, P.M.; García-Parrado, P.; Hernández-Muñoz, D.. |
| Para conocer la composición y estructura de las comunidades de gorgonias de los arrecifes coralinos del Archipiélago Sabana-Camagüey (norte central de Cuba) y los factores que las gobiernan, se realizaron muestreos de estaciones en 10 transecciones de arrecife que incluyen la zona trasera (cerca de 1 m de profundidad) y la zona del arrecife frontal (entre 5 y 20 m de profundidad). La especie más predominante y frecuente fue Pseudopterogorgia americana, seguida por Eunicea flexuosa, Eunicea mammosa, Plexaurella dichotoma y Plexaura kuekenthali. La primera es típica de fondos rocosos con acumulación de sedimentos, y las demás son consideradas como resistentes a la turbulencia del agua, excepto la última. Según el análisis BIOENV la turbulencia del agua fue... |
| Tipo: Journal Contribution |
Palavras-chave: Coral reefs; Coral reefs; Http://aims.fao.org/aos/agrovoc/c_1880. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/3487 |
| |
|
|
| Reyes Nivia, M. C.; Rodríguez Ramírez, A.; Garzón Ferreira, J.. |
| Five coral reef areas at the Colombian Caribbean were assessed between 1998 and 2003 through the “National Coral Reef Monitoring System of Colombia” (SIMAC), recording 198 species of fishes. The highest species number was observed in Chengue bay (149), including four new records for the Santa Marta area. At San Andrés Island, 138 species were identified, with nine new records for the Archipelago. At the Rosario Island, 128 species were recorded with eight new records, while 114 species and 12 new records were observed at San Bernardo Islands. Of the 119 fish species recorded at the Urabá area, 48 are reported for the first time. |
| Tipo: Journal Contribution |
Palavras-chave: Reef fish; Coral reefs; Coral reefs; Http://aims.fao.org/aos/agrovoc/c_1880. |
| Ano: 2004 |
URL: http://hdl.handle.net/1834/3061 |
| |
|
|
| Miravet, M.E.; Enríquez, D.; Lugioyo, G.M.; Delgado, Y.; Núñez, R.; Cabrera, H.; Martí, J.. |
| Se registran por primera vez para los arrecifes de la plataforma SW cubana, la presencia de 5 géneros y 16 especies de bacterias heterótrofas aeróbicas y 15 géneros de hongos, de los cuales, 7 se identificaron hasta especie. Los géneros Bacillus sp. (bacteria) y Aspergillus sp. (hongo) resultaron los más cosmopolitas de todos los géneros encontrados, predominando en las aguas y sedimentos de todos los arrecifes estudiados. Del total de cepas aisladas la mayor diversidad de géneros, tanto de bacterias heterótrofas aeróbicas como de hongos, correspondió a muestras procedentes del arrecife Juan García. |
| Tipo: Journal Contribution |
Palavras-chave: New records; Species diversity; Coral reefs; Bacteria; Coral reefs; Species diversity; Bacteria; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_33954; Http://aims.fao.org/aos/agrovoc/c_765. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/3331 |
| |
|
|
| Martínez, S.; Acosta, A.. |
| Several predictions have been made, about magnitude and direction of temporal changes in the coral community structure, during the last decade. However, few studies have demonstrated it quantitatively. In order to document such changes, the coral community structure was studied in four continental reefs in the Colombian Caribbean, two in the Santa Marta region: Punta Betín (PB) and Morro Grande Island (MO), and two in the Tayrona National Natural Park (PNNT): Granate cove (GR) and Gayraca bay (GA). Coral composition and cover were quantified in 2002 and compared to base line studies from 1989 (PB, MO & GR) and from 1992 (GA). These variables were quantified by 20 m linear transects between 1.5 m and 29 m depth. After a decade, all reefs lost in average... |
| Tipo: Journal Contribution |
Palavras-chave: Coral reefs; Degradation; Temporal variations; Community composition; Coral reefs; Degradation; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_2159. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/2012 |
| |
|
| |
|
|
| Mejía N., N.; Garzón-Ferreira, J.. |
| As a contribution to understanding the potential impact of macroalgae on coral communities, this work evaluated the presence and dynamics of algae-coral interactions in two bays of the Santa Marta region. Two stations were sampled in Chengue Bay, located within the Tayrona Natural Park, and two other in the Santa Marta Bay which is adjacent to the city of Santa Marta. Three permanent 10 m belt transects were settled at each station, at which a total of 270 coral colonies were monitored monthly. Algae - coral interactions were recorded from each colony based on five categories defined by the distance between the coral tissue and the algal mat. A total of 1956 interactions were recorded, 67% of which corresponded to direct contacts, 22% to indirect contacts,... |
| Tipo: Journal Contribution |
Palavras-chave: Coral reefs; Algae; Interactions; Coral reefs; Algae; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_258. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/3190 |
| |
|
|
| Montalvo, J.F.; Perigó, E.. |
| Coral reefs are very sensitive to the increment in nitrogen concentrations and phosphorus, since these compounds propitiate the macroalgae growth, resulting in the degradation of coral reefs. With the purpose of assessing the degree of nutriphication of the coral reefs in Los Canarreos Archipelago, located in the periphery of the Gulf of Batabanó, and those located in the outer area of Sabana-Camagüey Archipelago (SCA), three samplings were executed in the reefs of Los Canarreos Archipelago (August 1999, March 2000 and August 2000). In SCA, samplings were done in May 2002 and August 2003. The parameters evaluated were nitrates + nitrite, ammonium, total nitrogen, inorganic phosphorus and total phosphorus. The nutrient contents in the reefs located in the... |
| Tipo: Proceedings Paper |
Palavras-chave: Coral reefs; Eutrophication; Nutrients (mineral); Nitrogen; Phosphorus; Coral reefs; Eutrophication; Nitrogen; Phosphorus; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_2734; Http://aims.fao.org/aos/agrovoc/c_5192; Http://aims.fao.org/aos/agrovoc/c_5804. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2084 |
| |
|
|
| Zamorano, P.; Leyte_Morales, G.E.. |
| El conocimiento de los equinodermos de la región de Zihuatanejo y Acapulco, Guerrero, es escaso, y el existente refiere principalmente a listados taxonómicos. Con esos antecedentes, en este trabajo, se describión y caracterizó la comunidad de equinodermos asociada a arrecifes coralinos a partir de transectos de banda de 50 m de largo por 1 m d ancho. Durante 2004 se realizaron dos muestreos prospectivos (uno en época de lluvias y otro en época de secas). En total se registraron diez especies, tres asteroideos, seis echinoideos y un holoturoideo. La diversidad promedio obtenida en los 13 sitios estudiados (1.036 bits ind-1) se considera baja al compararla con la diversidad mácima posible (3.322 bits ind-1) debido a la dominancia del erizo negro Diadema... |
| Tipo: Journal Contribution |
Palavras-chave: Coral reefs; Coral reefs; Http://aims.fao.org/aos/agrovoc/c_1880. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3581 |
| |
|
|
| Geister, J.. |
| Según observaciones submarinas realizadas alrededor de la Isla de San Andrés el coral de columnas Dendrogyra cylindrus prefiere como habitat las regiones protegidas como el arrecife de Sotavento y las barrancas y plataformas submarinas de la costa Occidental desde 1 m hasta unos 20 m de profundidad. Es el único coral de tamaño grande que se destaca en su capacidad de resistir a la abrasión fuerte por fragmentos de corales sueltos, movidos por la resaca de las ocasionales tempestades invernales en la costa occidental. Dendrogyra se mantiene en este ambiente, al lado de unas pocas especies de octocorales y escleractinios incrustantes y hemisféricos de tamaño pequeño sin sufrir daño permanente, por medio de su base ancha, su estructura maciza y sus septos... |
| Tipo: Journal Contribution |
Palavras-chave: Coral; Coral reefs; Exoskeleton; Coral reefs; Exoskeleton; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_2754. |
| Ano: 1972 |
URL: http://hdl.handle.net/1834/3307 |
| |
|
| |
|
| |
|
| |
|
|
| Ammar, M.S.A.; Ghobashi, A.A.; Omran, M.A.; Shaaban, A.M.. |
| Using Using SCUBA diving, surveying the coral reef communities at four sites, Red Sea Egypt was done. These sites are: Ras El Behar (polluted by petroleum oil), El-Hamraween (impacted by phosphate shipping), Shabrour Umm Gam’ar (harmed by recreational activities and has been suffering from the outbreak of Acanthaster planci during 1998) and Kalawy (a control site). The skeletal growth of the coral Stylophora pistillata was promoted greatly at the expense of other corals, in presence of chronic oil pollution (Ras El-Behar). In contrast, this species was completely suppressed in presence of phosphate and sulphur enrichment. Petroleum oil led to coral scarcity, space monopolization by one coral and increased sea urchins and algae. Coral reefs enriched with... |
| Tipo: Journal Contribution |
Palavras-chave: Field Study; Coral reefs; Hydrocarbons; Phosphates; Coral reefs; Hydrocarbons; Phosphates; Http://aims.fao.org/aos/agrovoc/c_1880; Http://aims.fao.org/aos/agrovoc/c_3719; Http://aims.fao.org/aos/agrovoc/c_35986. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/1909 |
| |
|
| |
|
| |
| Registros recuperados: 41 | |
|
|
|
