The long spined sea urchin Diadema antillarum was an abundant grazer on Caribbean coral reefs, until 1983–1984, when densities were reduced by ∼98% during a region wide die-off. Since then, there has been very little natural recovery of the species and interest is growing in applying aquaculture as a …

The 1983-1984 die-off of the long-spined sea urchin Diadema antillarum stands out as a catastrophic marine event because of its detrimental effects on Caribbean coral reefs. Without the grazing activities of this key herbivore, turf and macroalgae became the dominant benthic group, inhibiting coral recruitment …

Diadema sea urchins (Diadema antillarum) are important algae grazers, but restoration attempts often record low survival of restocked individuals. This article sheds light on one of the causes for unsuccessful restocking. Restocked sea urchins were monitored with time-lapse cameras for 10 days. There …

Onderzoekers van Hogeschool Van Hall Larenstein, Wageningen University en Wageningen Marine Research hebben een nieuwe techniek ontwikkeld voor het natuurlijk herstel van Diadema zee-egels. Samen met de Saba Conservation Foundation, vonden zij een nieuw aanvullend substraat voor vestiging op het koraal …

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 the Caribbean. As the natural recovery of D. antillarum is slow to non-existent, multiple restoration studies have been attempted. There are currently three …

Het zijn de schapen van het koraal. Zee-egels, die de riffen met hun gegraas schoonhouden van algen. En dat is belangrijk, want het koraal wordt wereldwijd enorm bedreigd. Maar in het Caribisch gebied gaat het ook niet goed met de zee-egels. Een ziekte dreigt verschillende populaties uit te roeien. Marien …

Cetaceans play an important role in the functioning of natural ecosystems. The Caribbean Sea serves as an important foraging, breeding, and birthing area for an array of cetaceans, which led to the establishment of the Yarari Marine Mammal Sanctuary in 2015. Currently, no additional conservation measures …

Sinds de massasterfte van de belangrijke zee-egel soort Diadema Antillarum in het begin van de jaren 1980 zijn de koraalriffen in het Caribisch gebied sterk achteruit gegaan in productiviteit en biodiversiteit. Meerdere pogingen zijn gedaan om de populaties te herstellen, veelal met wisselend succes. …

In april 2022, the Dutch Caribbean Nature Alliance (DCNA), together with the University of Applied Sciences Van Hall Larenstein, hosted a sea urchin (Diadema Antillarum) restoration workshop on Saba. During the workshop experts and representatives from the Dutch Caribbean and Jamaica came together to …

At Van Hall Larenstein University of Applied Sciences (HVHL) in Leeuwarden, the sea urchin Diadema antillarum has been cultivated to help restore the coral reefs around Saba and St. Eustatius (Caribbean Netherlands). The first young urchins bred in Leeuwarden were released on March 24th to the Rotterdam …