Results: 79

Invertebrados asociados al coral constructor de arrecifes Pocillopora damicornis en Playa Blanca, Bahía Culebra, Costa Rica

Rev. biol. trop; 60 (supl.2), 2012
Invertebrates associated with the reef-building coral Pocillopora damicornis at Playa Blanca, Bahía Culebra, Costa Rica. The coral reefs are one of the most diverse ecosystems in the planet, not only because their reef-building species but also because of the species that live above, on, inside and belo...

Reconstruction of Diadema mexicanum bioerosion impact on three Costa Rican Pacific coral reefs

Rev. biol. trop; 60 (supl.2), 2012
The 1982-83 El Niño event produced a high coral mortality (50-90%) in several localities in the Eastern Tropical Pacific, which resulted in an outbreak of the sea urchin populations of Diadema mexicanum A. Agassiz, 1863 in some reefs, leading to an increase in coral framework bioerosion. In Costa Rica, ...

Impact of upwelling events on the sea water carbonate chemistry and dissolved oxygen concentration in the Gulf of Papagayo (Culebra Bay), Costa Rica: Implications for coral reefs

Rev. biol. trop; 60 (supl.2), 2012
The Gulf of Papagayo, Pacific coast of Costa Rica, is one of the three seasonal upwelling areas of Mesoamerica. In April 2009, a 29-hour experiment was carried out at the pier of the Marina Papagayo, Culebra Bay. We determined sea surface temperature (SST), dissolved oxygen concentration, salinity, pH, a...

Arnfried Antonius, coral diseases, and the AMLC

Rev. biol. trop; 60 (supl.1), 2012
The study of coral diseases, coral pathogens, and the effects of diseases on tropical and subtropical coral reefs are all current, high-profile research areas. This interest has grown steadily since the first report of a coral disease in 1973. The author of this report was Arnfried Antonius and the publi...

Insights into Migration and Development of Coral Black Band Disease Based on Fine Structure Analysis

Rev. biol. trop; 60 (supl.1), 2012
In many diverse ecosystems, ranging from natural surfaces in aquatic ecosystems to the mammalian gut and medical implants, bacterial populations and communities exist as biofilms. While the process of biofilm development has been well-studied for those produced by unicellular bacteria such Pseudomonas ae...

Massive hard coral loss after a severe bleaching event in 2010 at Los Roques, Venezuela

Rev. biol. trop; 60 (supl.1), 2012
Thermal anomalies have become more severe, frequent and well-documented across the Caribbean for the past 30 years. This increase in temperature has caused coral bleaching resulting in reef decline. At Los Roques National Park, Venezuela, temperature has been monitored at four reef sites. In mid-Septembe...

Static measurements of the resilience of Caribbean coral populations

Rev. biol. trop; 60 (supl.1), 2012
The progressive downward shift in dominance of key reef building corals, coupled with dramatic increases in macroalgae and other nuisance species, fields of unstable coral rubble ,loss of structural relief, and declines of major functional groups of fishes is a common occurrence throughout the Caribbean ...

Transplantation of storm-generated coral fragments to enhance Caribbean coral reefs: A successful method but not a solution

Rev. biol. trop; 60 (supl.1), 2012
In response to dramatic losses of reef-building corals and ongoing lack of recovery, a small-scale coral transplant project was initiated in the Caribbean (U.S. Virgin Islands) in 1999 and was followed for 12 years. The primary objectives were to (1) identify a source of coral colonies for transplantatio...

Coral recruitment to two vessel grounding sites off southeast Florida, USA

Rev. biol. trop; 60 (supl.1), 2012
Over the last two decades, more than 10 major vessel groundings have occurred on coral reefs offshore southeast Florida. Lack of any published information on coral settlement, post-settlement survival, and juvenile coral growth in the southeast Florida region inhibits efforts to determine if coral popula...

Preliminary results with a torsion microbalance indicate that carbon dioxide and exposed carbonic anhydrase in the organic matrix are the basis of calcification on the skeleton surface of living corals

Rev. biol. trop; 60 (supl.1), 2012
Ocean acidification is altering the calcification of corals, but the mechanism is still unclear. To explore what controls calcification, small pieces from the edges of thin plates of Agaricia agaricites were suspended from a torsion microbalance into gently stirred, temperaturecontrolled, seawater. Net c...