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  • Articles  (29)
  • Open Access-Papers  (29)
  • Caribbean
  • Coral reefs
  • 2020-2023  (21)
  • 2010-2014  (6)
  • 2000-2004  (2)
  • 1985-1989
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  • Articles  (29)
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  • 1
    Publication Date: 2022-05-26
    Description: Author Posting. © The Author(s), 2012. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Coral Reefs 32 (2013): 727-735, doi:10.1007/s00338-013-1021-5.
    Description: Ocean acidification (OA) threatens the existence of coral reefs by slowing the rate of calcium carbonate (CaCO3) production of framework-building corals thus reducing the amount of CaCO3 the reef can produce to counteract natural dissolution. Some evidence exists to suggest that elevated levels of dissolved inorganic nutrients can reduce the impact of OA on coral calcification. Here, we investigated the potential for enhanced energetic status of juvenile corals, achieved via heterotrophic feeding, to modulate the negative impact of OA on calcification. Larvae of the common Atlantic golf ball coral, Favia fragum, were collected and reared for 3 weeks under ambient (421 μatm) or significantly elevated (1,311 μatm) CO2 conditions. The metamorphosed, zooxanthellate spat were either fed brine shrimp (i.e., received nutrition from photosynthesis plus heterotrophy) or not fed (i.e., primarily autotrophic). Regardless of CO2 condition, the skeletons of fed corals exhibited accelerated development of septal cycles and were larger than those of unfed corals. At each CO2 level, fed corals accreted more CaCO3 than unfed corals, and fed corals reared under 1,311 μatm CO2 accreted as much CaCO3 as unfed corals reared under ambient CO2. However, feeding did not alter the sensitivity of calcification to increased CO2; Δcalcification/ΔΩ was comparable for fed and unfed corals. Our results suggest that calcification rates of nutritionally replete juvenile corals will decline as OA intensifies over the course of this century. Critically, however, such corals could maintain higher rates of skeletal growth and CaCO3 production under OA than those in nutritionally limited environments.
    Description: This project was funded by NSF OCE-1041106 and NSF OCE-1041052, a WHOI winter intern fellowship to A. Zicht made possible by the A. V. Davis Foundation and support from the MIT/WHOI Bermuda Biological Station for Research Fund.
    Description: 2014-03-08
    Keywords: Climate change ; Ocean acidification ; Coral reefs ; Coral calcification ; Heterotrophy ; Energetics
    Repository Name: Woods Hole Open Access Server
    Type: Preprint
    Format: application/pdf
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  • 2
    Publication Date: 2021-05-19
    Description: Los arrecifes coralinos, uno de los más bellos e importantes ecosistemas de nuestro planeta, han existido por más de 200 millones de años, sobreviviendo a grandes cambios durante su historia (glaciaciones, extinciones masivas, entre otros). Sin embargo, durante las últimas tres décadas se han registrado grandes y súbitos cambios en el medio marino que a juicio de algunos investigadores ponen en peligro la supervivencia de corales y arrecifes coralinos. Uno de los mayores problemas que enfrentan los arrecifes coralinos hoy en día es la aparición de enfermedades que atacan a los corales, la base de estos ecosistemas. No existe un concenso sobre si estas enfermedades son realmente nuevas o no, pero lo que sí se sabe es que algunas de ellas están creando cambios en los arrecifes coralinos sin precedentes en más de cuatro mil años. Los arrecifes colombianos no son ajenos a la influencia de enfermedades. Desde la década de los años 80 varias de ellas han sido observadas y estudiadas e incluso una de ellas fue descrita por primera vez en áreas arrecifales de Colombia. Esta revisión presenta un compendio de las principales enfermedades coralinas observadas en el mundo con el fin de servir como guía para su indentificación y como base para nuevos estudios en el tema. De igual forma, se presenta un resumen de los estudios en enfermedades coralinas que han sido llevados a cabo en Colombia y se discute sobre las perspectivas de investigación en este campo en el país.
    Description: Coral reefs are one of the most beautiful and important ecosystems in the planet. These ecosystems have existed for over 200 million years and have survived extrem episodes such as glaciations and mass extinctions during their history. Nonetheless, during the last three decades, these ecosystems have registered sudden and dramatic changes that, according to some researchers, endanger their survival and persistence. One of the major problems coral reefs are facing nowadays is the outbreak of diseases that affect corals, which constitute the basic unit of this ecosystem. There is no consensus regaring whether these disease outbreaks are recents episodes; but what seems to be true is that some of these diseases have favored unprecedented changes in coral reefs. Coral reefs in Colombia have also been affected by disease events, and since the 1980´s, several coral diseases have been observed and studied, and even one of them was first described in Colombian reefs. This work presents a compendium of the main coral diseases registered around the world and is meant to serve as a guide for new studies in this topic. Similarly, a summary of coral disease research carried out in Colombia is presented as well as a discussion on current perspectives for the study of this field in the country.
    Description: Published
    Description: Coral diseases
    Keywords: Coral reefs ; Mortality ; Coral reefs ; Mortality
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.189-224
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  • 3
    Publication Date: 2021-05-19
    Description: 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 excepcionalmente robustos. El crecimiento de la colonia se inicia con una incrustación ancha de la cual sucesivamente se levantan las columnas individuales. Con base poco estable el coral puede caer de lado por consecuencia de tempestades e iniciar de nuevo un crecimiento, resultando otro sistema de columnas superpuestas en angulo más o menos recto a las anteriores. Este proceso puede repetirse.
    Description: Submarine observations around San Andrés Island indicate that quiet backreef and leeward reef waters from 1 to 20 m deep, are the most favorable habitat for the pillar coral Dendrogyra cylindrus. It thrives even at the submarine terraces along the calm West coast of the Island, where abrasive action by coral fragments, is heavy during occasional storm surges. Besides a few minor incrusting and hemispherical species, Dendrogyra seems to be the only major scleractinian to resist abrasion and break-down without permanent damage in this environment. Dendrogyra initiates colony growth with a broad incrustation followed by upgrowth of pillars. Unstable basement may cause tumbling of the whole coral and subsequent pillar growth at approximately right angles to old columns. This process may be repeated, resulting in the formation of a third generation of pillars.
    Description: Published
    Keywords: Coral reefs ; Exoskeleton ; Coral ; Coral reefs ; Exoskeleton
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.77-87
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  • 4
    Publication Date: 2021-05-19
    Description: Benthic macrofauna and meiofauna distribution patterns were described in a tropical coral reef (Punta Francés, Cuban Archipelago, Caribbean Sea). Density and main taxa composition for macrofauna and meiofauna and species diversity and organismal traits for free-living nematodes were compared among four habitats: seagrass bed, sand flat, dead coral and hard bottom. Strong spatial patterns of distribution across habitats were detected and explained by a complex combination of habitat features. Signal/noise ratio for macrofauna data of distribution was enough strong to detect changes across habitats but the sizes of sampling devices were not adequate to represent the real patterns in the nature. Meiofauna patterns of distribution were driven by the type of substrate (unconsolidated versus hard bottoms) which surely was in turn dependent of the hydrodynamic regime. Nematodes dominated in seagrass beds and copepods in the other three habitats. Nematode density of species and individuals and species richness were highest in unconsolidated habitats maybe due to higher physical stability, larger spatial niche and more food resource availability. Diversity variation was large and similar between pairs of habitats with the exception of the hard bottom habitat which had lower differentiation. Most of the nematodes living in hard substrates showed adaptive organismal traits to cope with hydrodynamic regime and food availability (biofilm/algal turf), namely small and stout body, teeth for epigrazing, ornamented cuticle and cephalic capsule. Physical control on nematode assemblages was evident but biotic interactions may play a more important role in seagrass beds and sand flats compared to hard substrate habitats. The species diversity of nematodes, both in terms of α- and β-diversity, was high at the scale of the whole Punta Francés coral reef.
    Description: Se describen los patrones de distribución de la macro- y meiofauna en un arrecife de coral (Punta Francés, Archipiélago Cubano, Mar Caribe). La densidad y la composición por taxa para la macrofauna y meiofauna y la diversidad de especies y de caracteres biológicos para nemátodos se compararon entre cuatro hábitats: pastos marinos, arenazo, coral muerto y fondo duro. Se detectaron consistentes patrones espaciales de distribución los cuales fueron explicados por una combinación compleja de características del hábitat. La relación señal/ruido en los datos dedistribución de la macrofauna fue lo suficientemente fuerte para detectar cambios entre hábitats pero el tamaño de los dispositivos demuestreo no fue adecuado para representar los patrones reales en el medio natural. Los patrones de distribución de la meiofauna fueron afectados por el tipo de sustrato (sedimento versus fondo duro) el cual a su vez seguramente depende del régimen hidrodinámico. Los nemátodos dominaron en los pastos marinos y los copépodos en los otros tres hábitats. La densidad de especies e individuos y la riqueza de especie de nemátodos fueron más altas en los hábitats sedimentarios debidos probablemente a mayor estabilidad física, mayor nicho espacial y más disponibilidad de alimento. La variación en la diversidad fue alta y similar entre pares de hábitats con la excepción de los hábitats en fondo duro que tuvieron menor diferenciación. La mayoría de los nemátodos que habitan sobre sustratos duros mostraron rasgos morfológicos que les permiten adaptarse al régimen hidrodinámico y a la disponibilidad de alimento (biofilm/algas), esto es cuerpo pequeño y robusto, dientes para raspar, cutícula ornamentada y capsula cefálica. Fue evidente un control físico sobre las comunidades de nemátodos pero las interacciones bióticas pueden jugar un papel más importante en pastos marinos y arenazos comparado a los hábitats de sustrato duro. La diversidad de especies de nemátodos, en términos de α- y β-diversidad fue alta a la escala del arrecife coralino en Punta Francés.
    Description: Published
    Description: Biological traits
    Description: Caribbean Sea
    Description: Macrofauna
    Description: Meiofauna
    Description: Nematodes
    Keywords: Coral reefs ; Distribution ; Diversity index ; Macrofauna
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
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  • 5
    Publication Date: 2021-05-19
    Description: 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.
    Description: The presence of five genera and 16 species of aerobic heterotrophic bacteria and 15 genera of fungy (seven species) were registrated in coral reefs waters of the SW cuban shelf for the first time up to date. The Bacillus genera (bacterias) and Aspergillus (fungy) were the most frecuently founded in isolates from waters and sediments of all the coral reef studied. From the total number of isolates, the highest heterotrophic aerobic bacterial and fungal diversity were founded in samples from Juan García coral reef.
    Description: Published
    Description: heterotrophic bacteria, marine fungy
    Keywords: Coral reefs ; Species diversity ; Bacteria ; New records ; Species diversity ; Coral reefs ; Bacteria
    Repository Name: AquaDocs
    Type: Journal Contribution
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  • 6
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    CORDIO-SAREC, Stockholm University | Stockholm, Sweden
    Publication Date: 2021-05-19
    Description: Research Groups : Kenya Marine and Fisheries Research Institute (KMFRI), Mombasa, Kenya
    Description: In May 1999, two sites were selected within the Mombasa Marine Park and Reserve for the study of macroalgal succession due to bleaching. One of the sites was Starfish, which lies within the Mombasa Marine Park and is protected from fishing and the other site was Ras Iwatine, which lies in the Reserve area and is Subjected to fishing activities. The study revealed that the Starfish site had a significantly higher hard coral cover, which did not change over the study period. A comparison of the density of macroalgae revealed that a higher proportion of the substrate in Ras Iwatine was dominated by macroalgae. Settlement tiles, used to study algal recruitment, indicated that the succession process in the Starfish site passes through more stages compared to the Ras Iwatine site. This succession process suggested the influence of grazers in Starfish and their importance in maintaining a lower cover of macroalgae in this site.
    Description: Published
    Description: Algal succession, Macro algae, Coral bleaching, Marine protected areas
    Keywords: Algal blooms ; Coral reefs ; Ecosystems
    Repository Name: AquaDocs
    Type: Report Section , Non-Refereed
    Format: 0 bytes
    Format: application/pdf
    Format: pp.61-69
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  • 7
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    Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu
    Publication Date: 2022-05-25
    Description: Dataset: Fish abundance: canopy effect fish assemblage
    Description: Fish abundance and foraging rates by family from point surveys within and outside of canopies at Lameshur Bay, St John, USVI in February and March 2016. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/826193
    Description: NSF Division of Ocean Sciences (NSF OCE) OCE-1332915, NSF Division of Ocean Sciences (NSF OCE) OCE-1756381
    Keywords: Grazing impacts ; Restoration ; Ecosystem engineers ; Ecosystem services ; Canopy effect ; Gorgonian ; Fish nursery ; Caribbean ; Habitat-structure
    Repository Name: Woods Hole Open Access Server
    Type: Dataset
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  • 8
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    Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu
    Publication Date: 2022-05-25
    Description: Dataset: Focal fish foraging
    Description: Fish bite rates of individual 'focal' herbivorous fishes within and outside of canopies at Lameshur Bay, St John, USVI, February and March 2016. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/826253
    Description: NSF Division of Ocean Sciences (NSF OCE) OCE-1332915, NSF Division of Ocean Sciences (NSF OCE) OCE-1756381
    Keywords: Grazing impacts ; Restoration ; Ecosystem engineers ; Ecosystem services ; Canopy effect ; Gorgonian ; Fish nursery ; Caribbean ; Habitat-structure
    Repository Name: Woods Hole Open Access Server
    Type: Dataset
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  • 9
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    Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu
    Publication Date: 2022-05-25
    Description: Dataset: Edge effect fish assemblage
    Description: Demersal fish feeding rates within and at edges of octocoral communities at Lameshur Bay, St John, USVI, February and March 2016. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/826263
    Description: NSF Division of Ocean Sciences (NSF OCE) OCE-1332915, NSF Division of Ocean Sciences (NSF OCE) OCE-1756381
    Keywords: Grazing impacts ; Restoration ; Ecosystem engineers ; Ecosystem services ; Canopy effect ; Gorgonian ; Fish nursery ; Caribbean ; Habitat-structure
    Repository Name: Woods Hole Open Access Server
    Type: Dataset
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  • 10
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    Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu
    Publication Date: 2022-05-25
    Description: Dataset: Canopy effect benthic community
    Description: Scleractinian coral counts within and outside of canopies at Lameshur Bay, St John, USVIin February and March 2016. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/826227
    Description: NSF Division of Ocean Sciences (NSF OCE) OCE-1332915, NSF Division of Ocean Sciences (NSF OCE) OCE-1756381
    Keywords: Grazing impacts ; Restoration ; Ecosystem engineers ; Ecosystem services ; Canopy effect ; Gorgonian ; Fish nursery ; Caribbean ; Habitat-structure
    Repository Name: Woods Hole Open Access Server
    Type: Dataset
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