Posts under category: coral reef


CORDIO at IPBES 7, Paris

CORDIO’s Dr. David Obura was a Coordinating Lead Author in the IPBES Global Assessment report launched in Paris on 6 May 2019. The assessment is the first of its kind to assess, from local to global levels, peoples’ dependence on nature, the degree of impact we are having, and to […]


Coral decline or recovery?

Reefs that were heavily smothered by silt on 28 March are clearing, and stress to the corals seems to be over with little additional mortality. The coming rough and cool seas of the southeast monsoon should return conditions to normal. This is a report of a field survey conducted on […]


KPA stakeholder meeting, 27 March 2019 my take.

The week of 25-30 March saw an unusual set of events in Mombasa. Public outcry on the ongoing dredging/dumping and sand harvesting by two vessels was growing to a fever pitch, resulting in the CS for Transport, Mr. James Macharia, putting a stop to the activities with a tweet on […]


Sand harvest impacts to Waa-Tiwi coral reefs

Sand-harvesting has been carried out from 8-27 March at 3 areas off the Waa and Tiwi coral reefs, Kwale County, Kenya (see map). Sub-blocks 3, 4 and 5 have been exploited, with greatest pressure at block 4. The findings of the report are summarized below, or click on the icon […]


Preliminary Ocean Health Index assessments completed for Kenya and Tanzania

The Ocean Health Index (OHI) is a scientific framework used to measure how healthy oceans are. It is the first integrated assessment framework that scientifically combines key biological, physical, economic, cultural and social elements of the ocean’s health. The OHI scores reflect how well coastal regions optimize their potential ocean benefits and services in […]


Red List assessment of Scleractinian corals 2018-2020

The challenge The first complete assessment of reef-building corals was completed in 2008 (Carpenter et al. 2008) from which the Red List Index of corals shows the most significant decline of all taxonomic groups assessed (fig. below), due to the impact of the 1998 global coral bleaching event. Cost/investment We estimate […]


Climate vulnerability in the Comoros Archipelago

The Comoros islands are a poorly known volcanic chain of islands in between Mozambique and Madagascar in the ‘hotspot’ of coral reef biodiversity for the Western Indian Ocean. They still possess some beautiful areas of coral, but are threatened because of the combined effects of over-fishing, sedimentation from deforestation on land, coral […]