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| Bessudo,Sandra; Soler,Germán A.; Klimley,Peter A.; Ketchum,James; Arauz,Randall; Hearn,Alex; Guzmán,Adriana; Calmettes,Beatriz. |
| Understanding distribution ranges and the daily movement patterns of pelagic fishes are key aspects for the establishment and planning of protected areas for their conservation. In this study the vertical and horizontal movements of scalloped hammerhead sharks, Sphyrna lewini, were recorded in Malpelo and Cocos Island using satellite telemetry. Nine sharks were tagged with satellite transmitters during March 2006, 2007 and 2008 at Malpelo Island, and three hammerhead sharks were tagged at Cocos Island in June 2008. The sharks moved between islands in the Tropical Eastern Pacific and made regional movements from Malpelo to the south of Cocos and around the Malpelo ridge. When away from the island, sharks made infrequent nocturnal short dives down to 1000 m... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Satellite telemetry; Vertical and horizontal movements; Sphyrna lewini; Malpelo; Cocos. |
| Ano: 2011 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612011000300005 |
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| Corredor-Acosta,Andrea; Acosta,Alberto; Gaspar,Phillipe; Calmettes,Beatriz. |
| Climatic anomalies have changed the ocean circulation pattern and thus the demographic connectivity. However, in many geographical regions there is insufficient evidence of this change. Therefore, comparisons were made between neutral years and years of El Niño and La Niña with moderate intensity, for the North Equatorial Counter Current (NECC), the South Equatorial Current (SEC), the Coastal Current (CoaC) and the main anticyclonic eddy in the Panama Bight. Daily dynamics topography data of the Maps of Absolute Dynamic Topography (MADT) provided by AVISO and daily wind stress data provide by the European Centre for Medium Range Weather (ECMWF) were used to calculate the speed of surface currents (multi-year, quarterly average), during months with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ocean Currents; ENSO; Climatic Anomalies; Panama Bight. |
| Ano: 2011 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612011000300002 |
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