|
|
|
| Registros recuperados: 62 | |
|
|
| Kirugara, D.. |
| In the context of high sea-surface temperature anomalies causing widespread coral mortality, this study investigates the heat balance of a semi-enclosed coral reef lagoon system and any additional contribution of UV radiation as a trigger for bleaching. The study lagoon is situated north of Mombasa Island, along the Nyali- Bamburi-Shanzu coastline, at 4o0’01" S, 39o0’44" E (Figure 1) and has a surface area of 3.75 km2 and 12.5 km2 during spring low and high tides respectively. It consists of three topographic features: the shallow back-reef lagoon, the 300 m wide, 7.5 km long reef crest that is exposed during low tide and shelters the lagoon from oceanic swells and the relatively deep central longitudinal channel that collects all lagoon water at spring... |
| Tipo: Preprint |
Palavras-chave: Coastal lagoons; Water temperature. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/478 |
| |
|
| |
|
| |
|
|
| Cosel, R.v.. |
| Este trabajo trata de las especies de moluscos conocidas de la Ciénaga Grande de Santa Marta y de la zona litoral y la parte superior de la plataforma continental de la faja costera entre la Isla de Salamanca y el balneario El Rodadero (costa Caribe de Colombia, América del Sur). 468 especies y subespecies de moluscos marinos, estuarinos y dulceacuícoias son registradas; este número incluye 211 bivalvos, 6 scaphópodos y 215 gastrópodos. Dentro de la Ciénaga Grande se han hallado 101 especies y 1 subespecie (la mayoría también en el mar); adicionalmente 9 especies marinas han sido registradas sólo como conchas viejas en la porción estuarina de la Ciénaga Grande, el resto han sido colectadas exclusivamente en la parte marina del área investigada. 268... |
| Tipo: Journal Contribution |
Palavras-chave: Marine molluscs; Identification keys; Coastal lagoons; Salinity effects; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_1697. |
| Ano: 1986 |
URL: http://hdl.handle.net/1834/4048 |
| |
|
|
| 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 |
| |
|
| |
|
|
| Ghuetat, F.; Sellem, F.; Akrout, F.; Brahim, M.; Atoui, A.; Ben Romdhane, M.S.; Daly, Yahia, M. N.. |
| L’étude de l’état environnemental de la lagune de Boughrara a été réalisée deux ans après la mise en service du nouveau pont El Kantara. Les paramètres étudiés dans l’eau (nitrites, nitrates, ammonium, azote, phosphore total, chlorophylle a) et le sédiment (matière organique, faciès sédimentaire) ont été analysés dans trois zones de la lagune appartenants à divers contextes géographiques et environnementaux. Les résultats obtenus ont montré d’évidents signes d’amélioration des conditions générales de cet écosystème. Les distributions spatiotemporelles et saisonnières des paramètres étudiés indiquent que les teneurs trouvées atteignent le seuil d’eutrophisation pas mal de fois mais restent toujours inférieurs à ceux mentionnés par la DGPA en 2000 avant les... |
| Tipo: Journal Contribution |
Palavras-chave: Water quality; Coastal lagoons; Sediments; Abiotic factors; Coastal lagoons; Environmental assessment. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/5316 |
| |
|
| |
|
|
| Arrieta V., L.; Rosa Muñoz, J. de la. |
| In order to evaluate the structure of the fish community in the coastal lagoon of Mallorquín, sampling was made each two weeks in nine stations widely allocated in the study area from July 1998 to April 1999. A total of 36 species corresponding to 22 fish families were analized. Based on the frequency of occurrence, 58% were classified as occasional visitors, 26% as frequent visitors, and a 16% as residents. Total abundance was 2424 individuals and 187 Kg of biomass (fresh weight). 89,3% of total abundance and the 89,6% of total biomass was represented by four families (Mugilidae, Engraulidae, Gerreidae and Ariidae. Four species (Mugil incilis, Cetengraulis edentulus, Diapterus rhombeus and Eugerres plumieri), included in three families, were dominant,... |
| Tipo: Journal Contribution |
Palavras-chave: Coastal lagoons; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_1697. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/3199 |
| |
|
| |
|
| |
|
| |
|
|
| Ruiz-Ochoa, M.; Bernal, G.; Polanía, J.. |
| La influencia del río Sinú y del mar Caribe en el sistema lagunar de Cispatá se estudió a través del análisis anual, interanual y de tendencia de las series de tiempo hidrológicas (precipitación, caudal) y marinas (TSM, nivel). Las series hidrológicas fueron correlacionadas con los índices macroclimáticos ONI, NAO y PDO y, a partir del registro de las estaciones de caudal ubicadas aguas abajo de la represa Urrá I, se estudiaron sus efectos sobre el sistema lagunar. No se encontró relación significativa entre la precipitación y los eventos ENSO. Los caudales de la parte alta de la cuenca aportan el 50% de la salida. El caudal que llega al sistema lagunar presentó un ciclo unimodal. Anomalías positivas de caudal estuvieron asociadas con La Niña y anomalías... |
| Tipo: Journal Contribution |
Palavras-chave: Coastal lagoons; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_1697. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/3490 |
| |
|
|
| Koné, Yéfanlan José-Mathieu; Seu-Anoi, N.M.. |
| Les données de CO2 obtenues pendant deux campagnes dans les lagunes Aby et Ebrié montrent que ces écosystèmes sont très hétérogènes en terme de dynamique de CO2. Alors que la lagune Ebrié est sursaturée de CO2 vis-à-vis de l'atmosphère , la lagune Aby quant à elle est sous saturée en CO2 à cause d'une forte production phytoplanctonique caractérisée par des valeurs élevées de chlorophylle a dans la colonne d'eau. Ces résultats ne permettent pas par conséquent de conclure si les lagunes sont des sources ou des puits de CO2. Cependant, ils mettent en exergue l'importance de ces milieux dans les bilans globaux de CO2 surtout dans les régions tropicales. Ils soulignent aussi l'importance de la diversité des écosystèmes côtiers dans le cycle global du carbone. |
| Tipo: Journal Contribution |
Palavras-chave: Jets; Carbon dioxide; Coastal lagoons. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/5773 |
| |
|
|
| Alves-de-Souza,Catharina; Menezes,Mariângela; Huszar,Vera. |
| This paper presents the composition and functional groups of the phytoplankton from Comprida lagoon, a tropical humic coastal Lagoon located in Southeast Brazil. A total of 28 taxa was found, distributed in eight taxonomic divisions as follows: 26% Heterokontophyta, 21% Chlorophyta, 21% Cyanophyta, 14% Bacillariophyta, 14% Cryptophyta, and 4% Prymnesiophyta. Twenty-three taxa were identified at the specific and infraspecific levels, from which four are new records for Brazil and two for Rio de Janeiro State. Phytoplankton of the Comprida lagoon was comprised of several flagellates, but also eukaryote and prokaryote picoplankton, filamentous cyanobacteria and several diatoms. The biomass was lower than that found in other lacustrine systems, and showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phytoplankton; Tropics; Humic systems; Coastal lagoons; Functional groups; Southeast Brazil. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062006000300019 |
| |
|
| |
|
|
| ABSTRACT Coastal lagoons are a focus of primary production and a refuge for biodiversity due to their relative confinement and low depth. La Escollera is a human-made coastal lagoon in El Rodadero, Santa Marta (Colombian Caribbean), excavated in the early 1980s to hold a marina and its fringes planted with mangroves. To generate a baseline of physical variables that contribute to the nderstanding of water circulation and its influence on ecosystem attributes, salinity, temperature, sea level and light penetration data are outinely obtained through electronic recorders and handheld sensors. Salinity and temperature data from January 2017 to February 2018 ollowed the seasonal pattern of the open sea in the Santa Marta area, alternating between lower... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coastal lagoons; Marinas; Tides; Salinity; Temperatur. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612020000200025 |
| |
|
|
| Schifino,Lúcia Cabral; Fialho,Clarice Bernhardt; Verani,José Roberto. |
| The Fortaleza Lagoon belongs to the Southern Tramandaí subsystem, formed by lagoons disposed linearly on the north-south direction (30º 08S, 50º 13W). The objective of this study was to describe some aspects related to the composition of the fish community of Fortaleza Lagoon. Samples were collected monthly from November 1998 to October 1999. The specimens were captured at four previously determined points in the lagoon, and classified in five orders, 12 families and 22 species. Cyphocharax voga, Hyphessobrycon luetkenii, Oligosarcus jenynsii, Oligosarcus robustus and Loricariichthys anus were more abundant species. Amongst the sampled species only two could not be characterised as freshwater species: Centropomus sp (marine) and Lycengraulius grossidens... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Freshwater fishes; Coastal lagoons; Rio Grande do Sul; Brazil. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000500011 |
| |
|
|
| Aguiaro,Talita; Castelo Branco,Christina Wyss; Verani,José Roberto; Caramaschi,Érica Pellegrini. |
| Platanichthys platana is considered a constant species in both Cabiúnas and Imboassica lagoons that are characterised by different marine and freshwater inputs, and anthropogenic influences. The stomach content analysis of P. platana captured between July 1991 and July 1993 revealed filamentous algae, detritus, eggs of benthic invertebrates, larvae of chironomids and bivalves as the main food sources in Imboassica lagoon. Small-sized cladocerans, copepods and shrimp larvae were the prevailing items in Cabiúnas lagoon. Seasonal food variations were noted for the fishes of Imboassica lagoon. Diet differences were highlighted within specimens lesser than 40 mm standard length in Imboassica lagoon, and were related to the increase of marine influence due to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazil; Coastal lagoons; Food items; Platanichthys platana. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000200013 |
| |
|
| |
| Registros recuperados: 62 | |
|
|
|
