Why Do Large Reefscapes Matter?

Coral reefs face many natural and human-caused threats. In March 2017, a British-owned cruise ship ran aground at Raj Ampat causing significant damage to roughly 1,600 square meters of coral reefs. Recent studies in West Maui have shown that land-based pollution is reducing water quality and covering corals in sediment. Extensive coverage about bleaching on the Great Barrier Reef reminds us that these delicate ecosystems are in crisis. Fortunately, we have a solution that will help corals grow, reproduce and continue to build reefs. We can create Adaptive Reefscapes, which are networks of healthy reefs that is Diverse, Connected and Large. But what’s the right size for an Adaptive Reefscape? It turns out that there may be a Goldilocks solution that’s not too big and not too small. Adaptive Reefscapes should be as big as possible to reduce problems caused by large disturbances; a small Reefscape might be at risk from one major … [Read more...]

Why Does Connectivity Matter?

It’s a clear fall night in the Caribbean. High in the sky is a full moon and the water is perfectly warm. Once a year, the conclusion of a full moon and warmer water temperatures sets the mood for an incredible event – coral spawning. On this night, coral polyps release bundles of eggs and sperm into the water forming billions of free-floating larvae. These baby corals are starting unique journeys, following ocean currents for a few days or weeks before settling down on new reefs. Some corals stay close to home, while others travel for many kilometers to distant reefs. If they are lucky, they’ll find a safe place to call home, and will flourish and produce offspring of their own. This connection of reefs at the local scale is an important attribute in an Adaptive Reefscape, which are diverse, connected and large networks of healthy reefs designed to help corals adapt to climate change. Baby corals are looking for a reef that … [Read more...]

Why Does Coral Reef Diversity Matter?

Coral reefs are one of the most diverse ecosystems on the planet and are home to 25 percent of all marine life though they occupy less than one percent of our oceans. There are sponges and corals of all shapes and sizes, hard and soft; tiny fishes like pygmy seahorses and big fishes like tiger sharks; there are anemones, nudibranchs and snails – the list goes on! Reefs are also diverse in types of habitats: fringing reefs, barrier reefs and atolls to name a few. Even a single species of coral is genetically diverse. But why does coral reef diversity matter in an era of global climate change? We all know the facts: corals face an uncertain future due to local threats, such as pollution and overfishing, and global threats, such as climate change and ocean acidification. But without the reef-building corals, like staghorn or elkhorn, there is no reef and no habitat for the myriad forms of life that call reefs home. If we are to have … [Read more...]

Meet Antonella: Biologist, Diver and Fantasy-Geek

Recently, we welcomed Dr. Antonella Rivera to the Coral Reef Alliance family. Antonella is a Honduran biologist born in the city of Tegucigalpa and will work with local communities on fisheries reform and management efforts along the North Coast and Tela. Antonella first became aware of the profound benefits coral reefs have on the sustainability of coastal communities while diving off the coast of Honduras in the Bay Islands. This new appreciation for reefs motivated her to earn a Ph.D. in marine socio-ecological systems from the University of Oviedo. Her multidisciplinary research background ranges from analyzing the management implications of larval dispersal to the use of perception research to assess the adaptive capacity of coastal communities. Through her studies and work experience with fishing communities in Europe and Latin America, she has become a firm believer in the need for bottom-up, holistic and adaptive conservation … [Read more...]