The die-off of the long-spined sea urchin Diadema antillarum in the 1980s highlighted its crucial role as a primary grazer in tropical western Atlantic coral reefs. However, natural recovery has been slow, exacerbated by a new die-off in 2022. Interest in actively restoring D. antillarum populations …

The Dutch Caribbean is making significant strides in coral reef restoration through innovative approaches to restoring invertebrate herbivores, as presented by Alwin Hylkema of Van Hall Larenstein University of Applied Sciences and Wageningen University during the DCNA Reef Restoration Workshop. Hylkema …

Klimaatverandering zorgt voor een stijgende zeewatertemperatuur, hierdoor veranderen de ecologische condities van mariene ecosystemen, waardoor soorten moeten migreren of zich aanpassen. Kelp is een groep bruine macro-algen, die verschillende functies vervullen binnen mariene ecosystemen (bijv. habitatvorming, …

Tropical western Atlantic reefs have gradually shifted from being dominated by corals to being mainly covered by macroalgae. The mass-mortality of the sea urchin Diadema antillarum in the 80s and the slow to non-existent recovery exacerbated this shift. Chemical cues associated with these reefs are expected …

The world’s population is consistently increasing and as such is the demand for food. Current industrial farming methods pollute the environment and are unsustainable on multiple levels. To be able to feed future populations it is necessary to look for new, efficient, and more sustainable ways to feed …

Donderdag bezocht de koninklijke familie Saba. Ze gingen langs bij een project van Nederlandse wetenschappers van hogeschool Van Hall Larenstein die door middel van zee-egels het afstervende koraalrif helpen herstellen.

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 …

Klimaatverandering is een groot wereldwijd probleem. Het feit dat klimaatverandering veroorzaakt wordt door mensen betekent dat er ook in Nederland maatregelen genomen moeten worden. Een passend nationaal beleid voor de agrarische sector is kringlooplandbouw. Zeewier lijkt hier een passend en kansrijk …

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 …

1. We assessed the hypothesized negative correlation between the influence of multiple predators and body condition and fecundity of the European hare, from 13 areas in the Netherlands. 2. Year-round abundance of predators was estimated by hunters. We quantified predator influence as the sum of their …