Nuestro objetivo es desarrollar diversas publicaciones científicas que destaquen nuestro compromiso con la conservación de nuestros recursos marinos.
La mayoría de las publicaciones están disponibles gratuitamente en nuestro sitio web.
2019
Weil, E.; Hernández Delgado, Edwin A.; Gonzalez, M.; Williams, S.; Suleimán-Ramos, S.; Figuerola, M.; Metz-Estrella, T.
Spread of the new coral disease “SCTLD” into the Caribbean: implications for Puerto Rico. Journal Article
In: Reef Encounter, vol. 34, no. 1, pp. 38-43, 2019.
Abstract | Links | BibTeX | Tags: biodiversity, biomass, Caribbean, communities, Coral, coral diseases, coral reefs, diversity, Puerto Rico, reef, reefs
@article{Weil2019,
title = {Spread of the new coral disease “SCTLD” into the Caribbean: implications for Puerto Rico.},
author = {Weil, E. and Hernández Delgado, Edwin A. and Gonzalez, M. and Williams, S. and Suleimán-Ramos, S. and Figuerola, M. and Metz-Estrella, T.},
url = {https://www.researchgate.net/publication/342477916_REEF_ENCOUNTER_Spread_of_the_new_coral_disease_SCTLD_into_the_Caribbean_implications_for_Puerto_Rico
https://www.agrra.org/wp-content/uploads/2020/08/Weil-et-al.-2020-Reef-Encounter.pdf
http://sampr.org/wp-content/uploads/2024/01/Spread-of-the-new-coral-disease-SCTLD-into-the-Caribbean-implications-for-Puerto-Rico.pdf
},
year = {2019},
date = {2019-12-01},
urldate = {2019-12-01},
journal = {Reef Encounter},
volume = {34},
number = {1},
pages = {38-43},
abstract = {The ongoing deterioration and significant decline in live coral cover and diversity in coral reef communities
worldwide is strongly associated with increasing water temperatures linked to Global Climate Change, aided by
anthropogenic activities (Harvell et al. 2004, 2007, 2009; Weil and Rogers 2011; Maynard et al. 2016; Woodley et al.
2016). In the Wider Caribbean, major community structure and function decline was marked by two region-wide,
concurrent, highly virulent disease epizootics in the early 1980’s. These events almost wiped out two foundational
scleractinian species (Acropora palmata and A. cervicornis), and the keystone sea urchin Diadema antillarum. White
band disease (WBD) affected the acroporids and was caused by a complex of vibrio bacteria (Gil-Agudelo et al. 2006).
The Diadema mass mortality had all the trademark characteristics of a virulent, transmissible, bacterial or viral
infection, but the putative pathogen (pathogens) was never identified (Lessios 2016). Populations of both acroporids
and sea urchins suffered over 95% mortalities throughout the wider Caribbean (Gladfelter 1982; Lessios et al. 1984a,b;
Aronson and Precht 2001; Lessios 2016), followed by a cascade of ecological consequences (significant loss of live
coral cover, primary productivity, spatial complexity, biodiversity and fecundity; loss of ecological functions, increase
in algal cover and biomass, etc.), ending in a shift from coral- to algal-dominated communities and the loss of
ecological services to other tropical marine communities and to human beings (Aronson and Precht 2001; Weil and
Rogers 2011). Several other disease-induced mass mortalities of other cnidarians, as well as of massive, plate and
nodular reef-building genera, have in the last 30 years resulted in additional loss of biomass, diversity and live coral
cover on many Caribbean reefs (Miller et al. 2009; Weil et al. 2009a; Weil and Rogers 2011; Bastidas et al. 2011; Weil
et al. 2017). },
keywords = {biodiversity, biomass, Caribbean, communities, Coral, coral diseases, coral reefs, diversity, Puerto Rico, reef, reefs},
pubstate = {published},
tppubtype = {article}
}
worldwide is strongly associated with increasing water temperatures linked to Global Climate Change, aided by
anthropogenic activities (Harvell et al. 2004, 2007, 2009; Weil and Rogers 2011; Maynard et al. 2016; Woodley et al.
2016). In the Wider Caribbean, major community structure and function decline was marked by two region-wide,
concurrent, highly virulent disease epizootics in the early 1980’s. These events almost wiped out two foundational
scleractinian species (Acropora palmata and A. cervicornis), and the keystone sea urchin Diadema antillarum. White
band disease (WBD) affected the acroporids and was caused by a complex of vibrio bacteria (Gil-Agudelo et al. 2006).
The Diadema mass mortality had all the trademark characteristics of a virulent, transmissible, bacterial or viral
infection, but the putative pathogen (pathogens) was never identified (Lessios 2016). Populations of both acroporids
and sea urchins suffered over 95% mortalities throughout the wider Caribbean (Gladfelter 1982; Lessios et al. 1984a,b;
Aronson and Precht 2001; Lessios 2016), followed by a cascade of ecological consequences (significant loss of live
coral cover, primary productivity, spatial complexity, biodiversity and fecundity; loss of ecological functions, increase
in algal cover and biomass, etc.), ending in a shift from coral- to algal-dominated communities and the loss of
ecological services to other tropical marine communities and to human beings (Aronson and Precht 2001; Weil and
Rogers 2011). Several other disease-induced mass mortalities of other cnidarians, as well as of massive, plate and
nodular reef-building genera, have in the last 30 years resulted in additional loss of biomass, diversity and live coral
cover on many Caribbean reefs (Miller et al. 2009; Weil et al. 2009a; Weil and Rogers 2011; Bastidas et al. 2011; Weil
et al. 2017).
Precht, William F.; Aronson, Richard B.; Gardner, Toby A.; Gill, Jennifer A.; Hawkins, Julie P.; Hernández-Delgado, Edwin A.; Jaap, Walter C.; Mcclanahan, Tim R.; Mcfield, Melanie D.; Murdoch, Thaddeus J. T.; Nugues, Maggy M.; Roberts, Callum M.; Schelten, Christiane K.; Watkinson, Andrew R.; Côté, Isabelle M.
Non-Random Timing of Ecological Shifts on Caribbean Coral Reefs Suggests Regional Causes of Change Journal Article
In: Advance in Marine Biology, vol. 87, pp. 1-24, 2019.
Abstract | Links | BibTeX | Tags: Caribbean Coral Reefs, Coral, coral loss, macroalgal cover, macroalgal dominance, Marine biology
@article{Precht2020,
title = {Non-Random Timing of Ecological Shifts on Caribbean Coral Reefs Suggests Regional Causes of Change},
author = {Precht, William F. and Aronson, Richard B. and Gardner, Toby A. and Gill, Jennifer A. and Hawkins, Julie P. and Hernández-Delgado, Edwin A. and Jaap, Walter C. and Mcclanahan, Tim R. and Mcfield, Melanie D. and Murdoch, Thaddeus J. T. and Nugues, Maggy M. and Roberts, Callum M. and Schelten, Christiane K. and Watkinson, Andrew R. and Côté, Isabelle M.},
editor = {Marine and Coastal Programs},
url = {https://www.biorxiv.org/content/10.1101/672121v1.full
https://www.researchgate.net/publication/333988887_NON-RANDOM_TIMING_OF_ECOLOGICAL_SHIFTS_ON_CARIBBEAN_CORAL_REEFS_SUGGESTS_REGIONAL_CAUSES_OF_CHANGE
http://sampr.org/wp-content/uploads/2024/01/Non-random-Timing-of-Ecological-Shifts-on-Caribbean-Coral-Reefs-Suggests-Regional-Causes-of-Change.pdf},
doi = {https://doi.org/10.1101/672121},
year = {2019},
date = {2019-06-24},
urldate = {2019-06-24},
journal = {Advance in Marine Biology},
volume = {87},
pages = {1-24},
abstract = {Caribbean reefs have experienced unprecedented changes in the past four decades. Of great concern is the perceived widespread shift from coral to macroalgal dominance and the question of whether it represents a new, stable equilibrium for coral-reef communities. The primary causes of the shift -- grazing pressure (top-down), nutrient loading (bottom-up) or direct coral mortality (side-in) -- still remain somewhat controversial in the coral reef literature. We have attempted to tease out the relative importance of each of these causes. Four insights emerge from our analysis of an early regional dataset of information on the benthic composition of Caribbean reefs spanning the years 1977–2001. First, although three-quarters of reef sites have experienced coral declines concomitant with macroalgal increases, fewer than 10% of the more than 200 sites studied were dominated by macroalgae in 2001, by even the most conservative definition of dominance. Using relative dominance as the threshold, a total of 49 coral-to-macroalgae shifts were detected. This total represents ∼35% of all sites that were dominated by coral at the start of their monitoring periods. Four shifts (8.2%) occurred because of coral loss with no change in macroalgal cover, 15 (30.6%) occurred because of macroalgal gain without coral loss, and 30 (61.2%) occurred owing to concomitant coral decline and macroalgal increase. Second, the timing of shifts at the regional scale is most consistent with the side-in model of reef degradation, which invokes coral mortality as a precursor to macroalgal takeover, because more shifts occurred after regional coral-mortality events than expected by chance. Third, instantaneous observations taken at the start and end of the time-series for individual sites showed these reefs existed along a continuum of coral and macroalgal cover. The continuous, broadly negative relationship between coral and macroalgal cover suggests that in some cases coral-to-macroalgae phase shifts may be reversed by removing sources of perturbation or restoring critical components such as the herbivorous sea urchin Diadema antillarum to the system. The five instances in which macroalgal dominance was reversed corroborate the conclusion that macroalgal dominance is not a stable, alternative community state as has been commonly assumed. Fourth, the fact that the loss in regional coral cover and concomitant changes to the benthic community are related to punctuated, discrete events with known causes (i.e. coral disease and bleaching), lends credence to the hypothesis that coral reefs of the Caribbean have been under assault from climate-change-related maladies since the 1970s.},
keywords = {Caribbean Coral Reefs, Coral, coral loss, macroalgal cover, macroalgal dominance, Marine biology},
pubstate = {published},
tppubtype = {article}
}
2018
Pérez-Pagán, Birla Sofía; Mercado-Molina, Alex E.
Evaluation of the effectiveness of 3D-printed corals to attract coral reef fish at Tamarindo Reef, Culebra, Puerto Rico. Journal Article
In: Conservation Evidence, vol. 15, pp. 43-47, 2018, ISSN: 1758-2067.
Abstract | Links | BibTeX | Tags: 3D-printed corals, Acropora cervicornis, Caribbean, Caribbean Coral Reefs, Caribbean Sea, Coastal Resilience, Conservation Biology, Coral, Coral Reef Ecology, Coral Reef Ecosystems, coral reefs
@article{Pérez-Pagán2018,
title = {Evaluation of the effectiveness of 3D-printed corals to attract coral reef fish at Tamarindo Reef, Culebra, Puerto Rico.},
author = {Pérez-Pagán, Birla Sofía and Mercado-Molina, Alex E.},
url = {https://www.conservationevidence.com/individual-study/6858
},
issn = {1758-2067},
year = {2018},
date = {2018-06-11},
urldate = {2018-06-11},
journal = {Conservation Evidence},
volume = {15},
pages = {43-47},
abstract = {The development of artificial corals using 3D-printing technology has been proposed as an alternative to aid the recovery of fish populations in degraded reefs. However, no study has empirically evaluated the potential of such artificial corals to attract fish to reef patches. We conducted an experiment to determine whether the number of fish associated with natural and 3D-printed corals differs significantly. The 3D-printed artificial corals mimicked the morphology of staghorn coral Acropora cervicornis, whose branches serve as habitat for many fish species. There is evidence indicating that fish abundance increases with habitat complexity, but no specific evidence relating to A. cervicornis. Therefore, we also investigated whether the structural complexity of both natural and artificial corals affected their effectiveness to attract fish. We found that the number of fish associated with artificial and natural corals was not significantly different. However, irrespective of coral type, fish were more abundant in corals with the highest levels of complexity. Our findings suggest that 3D-printed corals can serve as a complementary tool to improve the ecosystem function of degraded coral reefs.},
keywords = {3D-printed corals, Acropora cervicornis, Caribbean, Caribbean Coral Reefs, Caribbean Sea, Coastal Resilience, Conservation Biology, Coral, Coral Reef Ecology, Coral Reef Ecosystems, coral reefs},
pubstate = {published},
tppubtype = {article}
}
2017
Godoy-Vitorino, Filipa; Ruiz-Diaz, Claudia P.; Rivera-Seda, Abigail; Ramírez-Lugo, Juan S.; Toledo-Hernández, Carlos
The microbial biosphere of the coral Acropora cervicornis in Northeastern Puerto Rico Journal Article
In: PeerJ, vol. 10, no. 3717, pp. 15, 2017.
Abstract | Links | BibTeX | Tags: 16S rDNA, Caribbean, Coral, coral reefs, Depth-related, Microbiota
@article{Godoy-Vitorino2017,
title = {The microbial biosphere of the coral \textit{Acropora cervicornis} in Northeastern Puerto Rico},
author = {Godoy-Vitorino, Filipa and Ruiz-Diaz, Claudia P. and Rivera-Seda, Abigail and Ramírez-Lugo, Juan S. and Toledo-Hernández, Carlos},
editor = {Robert Toonen},
url = {https://peerj.com/articles/3717/
http://sampr.org/wp-content/uploads/2024/01/The-microbial-biosphere-of-the-coral-Acropora-cervicornis-in-Northeastern-Puerto-Rico.pdf},
doi = {https://doi.org/10.7717/peerj.3717},
year = {2017},
date = {2017-08-29},
urldate = {2017-08-29},
journal = {PeerJ},
volume = {10},
number = {3717},
pages = {15},
abstract = {Coral reefs are the most biodiverse ecosystems in the marine realm, and they not only contribute a plethora of ecosystem services to other marine organisms, but they also are beneficial to humankind via, for instance, their role as nurseries for commercially important fish species. Corals are considered holobionts (host + symbionts) since they are composed not only of coral polyps, but also algae, other microbial eukaryotes and prokaryotes. In recent years, Caribbean reef corals, including the once-common scleractinian coral Acropora cervicornis, have suffered unprecedented mortality due to climate change-related stressors. Unfortunately, our basic knowledge of the molecular ecophysiology of reef corals, particularly with respect to their complex bacterial microbiota, is currently too poor to project how climate change will affect this species. For instance, we do not know how light influences microbial communities of A. cervicornis, arguably the most endangered of all Caribbean coral species. To this end, we characterized the microbiota of A. cervicornis inhabiting water depths with different light regimes.},
keywords = {16S rDNA, Caribbean, Coral, coral reefs, Depth-related, Microbiota},
pubstate = {published},
tppubtype = {article}
}
Hernández-Delgado, Edwin A.; Rosado-Matías, Bernard J.
In: Annals of Marine Biology and Research, vol. 4, no. 1, pp. 1-17, 2017.
Abstract | Links | BibTeX | Tags: Beach erosion, Beach renourishment, Climate change, Coastal Erosion, Coastal Resilience, Conservation Biology, Coral, Coral Reef Ecology, Coral Reef Ecosystems, coral reefs, Environmental Sustainability, Wave Energy
@article{Hernández-Delgado2017b,
title = {Long-Lasting Impacts of Beach Renourishment on nearshore Urban Coral Reefs: a Glimpse of Future Impacts of Shoreline Erosion, Climate Change and Sea Level Rise},
author = {Hernández-Delgado, Edwin A. and Rosado-Matías, Bernard J.},
url = {http://sampr.org/wp-content/uploads/2024/01/Long_Lasting_Impacts_of_Beach_Renourishm.pdf
https://www.researchgate.net/publication/318316763_Long-Lasting_Impacts_of_Beach_Renourishment_on_Near_shore_Urban_Coral_Reefs_a_Glimpse_of_Future_Impacts_of_Shoreline_Erosion_Climate_Change_and_Sea_Level_Rise
},
year = {2017},
date = {2017-05-05},
urldate = {2017-05-05},
journal = {Annals of Marine Biology and Research},
volume = {4},
number = {1},
pages = {1-17},
abstract = {Urban shoreline erosion mitigation through beach renourishment has often been dismissed as environmentally insignificant. Given predicted impacts of sea level rise (SLR) and increased shoreline erosion, such activities might become a common practice in the future. But its long-term impacts on adjacent coral reefs have remained poorly documented. Benthic community trajectories were addressed during a period of twelve years across a spatial gradient of sediment burial impacts by beach renourishment on a high-energy urban coral reef at La Marginal Beach, Arecibo, Puerto Rico. Impacts associated to beach renourishment, followed by long-term, slowly-evolving impacts associated to sediment bedload, increased turbidity, increased Arecibo River streamflow, urban polluted runoff discharges, high particulate organic carbon (POC) concentration, and coral mortality following massive coral bleaching in 2005 were
addressed through long-term monitoring. There was an initial catastrophic loss in coral species richness, diversity index and percent living coral cover, and a rapid regime shift favoring dominance by macroalgae and other non-reef building taxa. Long-term chronic impacts arrested high impact sites to an early successional stage, and drove moderate and low impact sites to a similar stage of very low species diversity, colony abundance and reef growth. Such chronic changes in community trajectories represent a glimpse into potential future impacts of shoreline erosion, sediment bedload, increasing turbidity and coastal water quality decline associated to SLR. The combination of chronic coral reef decline resulting from beach renourishment, coastal pollution, turbidity, and sediment bedload may have critical long-term ecological implications for urban coral reef resilience, functions and benefits.},
keywords = {Beach erosion, Beach renourishment, Climate change, Coastal Erosion, Coastal Resilience, Conservation Biology, Coral, Coral Reef Ecology, Coral Reef Ecosystems, coral reefs, Environmental Sustainability, Wave Energy},
pubstate = {published},
tppubtype = {article}
}
addressed through long-term monitoring. There was an initial catastrophic loss in coral species richness, diversity index and percent living coral cover, and a rapid regime shift favoring dominance by macroalgae and other non-reef building taxa. Long-term chronic impacts arrested high impact sites to an early successional stage, and drove moderate and low impact sites to a similar stage of very low species diversity, colony abundance and reef growth. Such chronic changes in community trajectories represent a glimpse into potential future impacts of shoreline erosion, sediment bedload, increasing turbidity and coastal water quality decline associated to SLR. The combination of chronic coral reef decline resulting from beach renourishment, coastal pollution, turbidity, and sediment bedload may have critical long-term ecological implications for urban coral reef resilience, functions and benefits.
2011
Hernández-Delgado, Edwin A.; Suleimán-Ramos, Samuel E.; Olivo, Iván; Fonseca, Jaime; Lucking, Mary Ann
Alternativas tecnológicas para el cultivo y la restauración de los arrecifes de coral en Puerto Rico Book Chapter
In: Seguinot-Barbosa, José (Ed.): Chapter 3.6, pp. 178-186, Ediciones SM, 1, 2011.
Abstract | Links | BibTeX | Tags: Acropora palmata, Conservation, Coral, Coral Deseases, coral farming, Preservation, Restoration Ecology, Seagrass and Coral Reef Restoration Projects
@inbook{Hernández2011,
title = {Alternativas tecnológicas para el cultivo y la restauración de los arrecifes de coral en Puerto Rico},
author = {Hernández-Delgado, Edwin A. and Suleimán-Ramos, Samuel E. and Olivo, Iván and Fonseca, Jaime and Lucking, Mary Ann},
editor = {José Seguinot-Barbosa},
url = {http://sampr.org/hernandez-et-al-2011-c3-6-rest-corales-final/
https://www.researchgate.net/publication/265966133_Alternativas_de_baja_tecnologia_para_la_rehabilitacion_de_los_arrecifes_de_coral
},
year = {2011},
date = {2011-01-11},
urldate = {2011-01-11},
pages = {178-186},
publisher = {Ediciones SM},
edition = {1},
chapter = {3.6},
abstract = {La pérdida de los arrecifes de coral y sus ecosistemas asociados debido a una combinación de factores locales de origen humano y factores asociados al calentamiento del mar ha sido significativa durante las últimas décadas. Esto ha redundado en pérdidas significativas en la biodiversidad de corales y de la fauna asociada al arrecife, así como en un cambio significativo de fase en la estructura de la comunidad, en donde la dominancia de los corales ha sido sustituida por la dominancia de las algas y otros grupos de especies no constructores de arrecifes.
Este tipo de cambios tiene usualmente consecuencias nefastas para el sostenimiento de la resistencia a perturbaciones y de la resiliencia del ecosistema, lo que influye en su capacidad de recuperación después de alguna perturbación. También afecta adversamente el mantenimiento de las funciones ecológicas y los servicios que nos proveen dichos ecosistemas. Las consecuencias ecológicas, ambientales, sociales y económicas de esto pueden ser de gran magnitud.},
keywords = {Acropora palmata, Conservation, Coral, Coral Deseases, coral farming, Preservation, Restoration Ecology, Seagrass and Coral Reef Restoration Projects},
pubstate = {published},
tppubtype = {inbook}
}
Este tipo de cambios tiene usualmente consecuencias nefastas para el sostenimiento de la resistencia a perturbaciones y de la resiliencia del ecosistema, lo que influye en su capacidad de recuperación después de alguna perturbación. También afecta adversamente el mantenimiento de las funciones ecológicas y los servicios que nos proveen dichos ecosistemas. Las consecuencias ecológicas, ambientales, sociales y económicas de esto pueden ser de gran magnitud.

