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Nederlands, Papiamentu and Papiamento below
Last week, the Dutch Caribbean Nature Alliance hosted a sea urchin (Diadema Antillarum) restoration...
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Dutch below
Diadema sea urchins (Diadema antillarum) are important algae grazers, but restoration attempts often record low survival of restocked...
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Dutch below
The RAAK-PRO Diadema II project, is a pioneering effort to restore populations of the herbivorous sea urchin Diadema antillarum on...
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The Diadema RAAK Project is a collaborative effort between University of Applied Sciences Van Hall Larenstein, Wageningen Marine Research and...
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On October 22st, 2021, the first ever recorded Diadema sea urchins in the Caribbean were cultured on Saba. Diadema sea urchins are important grazers...
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Dutch below
Long-spined sea urchins (Diadema antillarum) help maintain healthy coral reefs by grazing on algae. In 2022, there was a die-off of long-...
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Project description
Time: July 2023- July 2025
Project leaders: VHL (Alwin Hylkema), SCF (Kai Wulf), STENAPA (Erik Boman), WUR (Dolfi Debrot)
Project...
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Nederlands below.
Researchers from Van Hall Larenstein, Wageningen University and Wageningen Marine Research have developed a new approach to assist...
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Nederlands, Papiamento and Papiamentu below
Since February 2022 there have been reports of Long-spined sea urchin (Diadema) die off from a number...
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As previously mentioned, a new wave of long-spiced sea urchins (Diadema antillarum) die-offs are happening throughout the Caribbean, including...
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Nederlands below:
Diadema sea-urchins play a vital role in maintaining a balanced coral reef ecosystem and their restoration is essential to assist...
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Dutch below
Sint Eustatius’ once-thriving coral reefs are now mere survivors, facing a decline from 25% hard coral cover in 1999 to less than 2.5%...
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Help Protect Sea urchins
Help us track sea urchin health in the Caribbean by adding your observations of healthy, sick or dead urchins. These...
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The sea urchin Diadema antillarum commonly occurs on Caribbean reefs in densities sufficiently high to influence characteristics such as community...
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The massive die-off of the sea urchin Diadema antillarum in 1983–1984 is one the main reasons for low coral recruitment and little coral recovery in...
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Abstract:
Recruitment of the sea urchin Diadema antillarum philippi, 1845 was studied on artificial recruitment panels along the leeward coast of the...
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The new RAAK PRO Diadema project aims to restore long spined sea urchin populations (scientific name Diadema antillarum) on the coral reefs around...
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Populations of Diadema antillarum have had low densities ever since its mass mortality event in 1983. A slow population density increase has resulted...
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Abstract
Before its mass-mortality in the 1980’s, Diadema antillarum was the most important benthic herbivore on Caribbean reefs. Since then, reefs...
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The 1983-1984 die-off of the long-spined sea urchin Diadema antillarum stands out as a catastrophic marine event because of its detrimental effectson...
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The massive die-off of hte sea urchin Diademan antillarum in 1983-1984 is one of the main reasons for low coral recuirtmenat and little coral...
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At Van Hall Larenstein University of Applied Sciences (HVHL) in Leeuwarden, the sea urchin Diadema antillarum has been cultivated to help restore the...
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Recovery of the Caribbean long-spined sea urchin Diadema antillarum from the pathogen-induced mass mortality event of 1983 has been slow and variable...
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Coral reefs are among the most valuable and threatened ecosystems on Earth. Lower species diversity, and subsequently reduced resilience, make...
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The massive die-off of the herbivorous sea urchin Diadema antillarum in 1983 and 1984 resulted in phase shifts on Caribbean coral reefs, where...
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A B S T R A C T
The long spined sea urchin Diadema antillarum was an abundant grazer on Caribbean coral reefs, until
1983–1984, when densities were...
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The sea urchin Diadema antillarum is an important herbivore in coral reef ecosystems of the Caribbean. The Caribbean is still recovering from a 1983...
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The early 80’s die-off of Diadema antillarum and the subsequent reef degradation is by now a well-discussed and studied topic throughout the...
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Diadema sea-urchins play a vital role in maintaining a balanced coral reef ecosystem by grazing away algae and creating bare substrate for coral...
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Long-spined sea urchins (Diadema antillarum) play a critical role in maintaining healthy coral reefs. By grazing on algae, these sea urchins keep...
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Unusually warm ocean temperatures surrounding Bonaire during the late summer and fall of 2010 caused 10 to 20 % of corals to bleach (Fig. 1)....
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As part of CIEE's Bonaire semester programs, each student conducts an independent research project on a topic of their choice. The projects...
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TABLE OF CONTENTS:
Chapter 1: Patterns and trends in corals, seaweeds
Chapter 2: Trends in Bonaire’s herbivorous fish: change over time
Chapter 3:...
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Outbreaks of Acropora and Diadema diseases in the 1970s and early 1980s, overpopulation in the form of too many tourists, and overfishing are the...
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Outbreaks of Acropora and Diadema diseases in the 1970s and early 1980s, overpopulation in the form of too many tourists, and overfishing are the...
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As part of CIEE's Bonaire semester programs, each student conducts an independent research project on a topic of their choice. The projects...
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Bonaire’s reefs remain among the best in the Caribbean. However, our monitoring has revealed some potentially troubling trends that may require...
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This report characterizes the state of Bonaire’s reefs as of March 2005. We pay particular attention to structural and functional attributes of reefs...
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Twenty-two sites across four monitoring zones of St. Eustatius’s marine ecosystem were assessed using the Global Coral Reef Monitoring Network...
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Coral reefs are being threatened by both anthropogenic and environmental factors. One prominent factor is the loss of herbivores on coral reefs due...
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Caribbean coral reefs have been declining for decades due to a combination of anthropogenic drivers and natural phenomena like hurricanes. The...
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BioNews 70
BioNews is a newsletter produced by the Dutch Caribbean Nature Alliance (DCNA) which focuses on science and conservation in the Dutch...
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In the past, diseases and infections have had dramatic impacts on Caribbean coral reef ecosystems (e.g. white band disease in corals (Pantos and...
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Caribbean corals have suffered from bleaching, diseases and Diadema die-off. Reefs on narrow shelves adjacent to high human population and many...
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Bonaire has long been considered to have amongst the healthiest reefs of the Caribbean. However, at the 2002 Annual Meeting of Pew Fellows for Marine...
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Coral reef ecosystems provide a number of important ecological services, such as nurseries and protection from storms. This makes their health of...
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As part of CIEE's Bonaire semester programs, each student conducts an independent research project on a topic of their choice. The projects...
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As part of CIEE's Bonaire semester programs, each student conducts an independent research project on a topic of their choice. The projects...
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In recent decades, reduced grazing pressure caused by a die-off of Diadema antillarum and the overexploitation of herbivorous fishes have facilitated...
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BioNews is a newsletter produced by the Dutch Caribbean Nature Alliance (DCNA) which focuses on science and conservation in the Dutch Caribbean....
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BioNews 50 - Dutch Caribbean Newsletter
BioNews is a newsletter produced by the Dutch Caribbean Nature Alliance (DCNA) which focuses on science and...
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Herbivory drives ecosystem dynamics in both terrestrial and marine habitats, controlling type and biomass of vegetation. In tropical coral reefs,...
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A new study compared the effectiveness of three popular artificial reefs to increase fish densities around Saba and St Eustatius. The researchers...
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This is the last part of the Marine Scientific Assessment The State of Curacao's Coral Reefs document. For part 1 click here, for part 2 here &...
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The status of coral reefs around the world is almost exclusively gauged by data on reef-building corals (live coverage, diversity, prevalence of...
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Twenty sites across four monitoring zones of St. Eustatius’s marine ecosystem were assessed using the Global Coral Reef Monitoring Network Caribbean...
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This is the first part of the Marine Scientific Assessment The State of Curacao's Coral Reefs document. For part 2 click here, for part 3 here ...
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On January 17th, 2022, Mark Zagers, Managing Director of the Saba Electric Company (SEC), officially handed over the keys to Peter Johnson, President...
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Twenty-two sites across four monitoring zones of St. Eustatius’ marine ecosystem within the national marine park were assessed using the Global Coral...
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From big litigation to renovations for their new sea lab, 2022 promises to be a banner year for the Saba Conservation Foundation (SCF). SCF recently...
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CNSI continues to monitor the vulnerable ecosystems of St. Eustatius coordinated by Data Monitoring Officer (DMO) Kimani Kitson-Walters. Coral reef...
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The Nature Conservation Network Organization the Dutch Caribbean Nature Alliance (DCNA) hosted its biannual Board Meeting on Sint Maarten between...
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Coral reefs are threatened globally and their trajectories of decline are very similar worldwide. In the Caribbean coral cover has declined by 80%...
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Christmas tree worms (Serpulidae: Spirobranchus) occur in shallow parts of coral reefs, where they
live as associates of a large number of stony...
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Abstract:
From July 19-26, 2010, a dedicated team of researchers completed transect surveys on 25 reefs located on the leeward side of Bonaire and...
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Abstracts:
TOURISM IN THE CARIBBEAN: CHALLENGES FOR THE MANAGEMENT OF FISHERIES & CORAL REEF ECOSYSTEMS (Sponsored by CORALINA & GCFI)
Kyne...