Long Term Reef
Monitoring Project

TRACKING REEF HEALTH DATA OVER TIME*

2018 Live Reef Cover

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2024 Live Reef Cover

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Reef Check Monitoring

Using established protocols to collect vital data on overall reef health.

Invasive Species Containment

Addressing the on-going Lionfish issue within the Caribbean with safe removal from nursery reefs.

Coral Regeneration

Supporting the ongoing activity within out coral nurseries as we look to grow new corals for our reefs.

Coral Watch Surveys

Specifically looking for signs of coral stress and bleaching, tracking bleaching events globally.

Apex Predator Monitoring

Supporting the Bimini Shark Lab with the collection of data on the proliferation of apex predators.

Coral Gardening

Supporting the reefs and our babies with cleaning and monitoring activities promoting reef health.

Coral Reef Monitoring Research

Nora Valdes

Reseach Co-Ordinator

Building The Picture

Coral reef monitoring using Reef Check and Coral Watch protocols is essential for understanding and preserving the health of reef ecosystems. These protocols provide standardized methods for collecting data on coral health, fish populations, and invertebrate abundance, which are critical for establishing a baseline of reef conditions. This baseline data is invaluable for tracking changes over time and assessing the impacts of environmental stressors such as climate change, pollution, and overfishing.

Reef Check and Coral Watch protocols emphasize the importance of conducting surveys at the same locations and times each year. This consistency helps eliminate the effects of seasonal variations, ensuring that the data accurately reflects long-term trends rather than short-term fluctuations. By repeating surveys under these controlled conditions, researchers can detect subtle changes in the reef ecosystem that might otherwise go unnoticed.

Monitoring coral reefs using these protocols allows scientists to identify early signs of reef degradation, such as coral bleaching or disease outbreaks. Early detection is crucial for implementing timely conservation measures to mitigate damage and promote reef recovery. Additionally, the data collected through these surveys contribute to global databases, enhancing our understanding of coral reef health on a broader scale.

Caribbean Reef Buddy (CRB) offers opportunities for volunteers to participate in coral reef monitoring using these protocols. By joining CRB, volunteers can contribute to vital conservation efforts, gain hands-on experience in marine research, and help protect the delicate balance of Caribbean reef ecosystems. Participation in these programs not only supports scientific research but also fosters a deeper understanding and appreciation of marine conservation.

Predator Week

Gary Ward

Executive Director

Understanding the Role of Predators

Monitoring apex predators and containing invasive lionfish are crucial for maintaining the health of Caribbean reef ecosystems. Apex predators, such as sharks and large groupers, play a vital role in regulating the populations of other marine species, ensuring a balanced and healthy ecosystem. The use of Baited Remote Underwater Video Surveillance (BRUVS) is an effective method for monitoring these predators. BRUVS allow researchers to observe and record the presence and behavior of apex predators without the need for intrusive methods that could disturb the marine environment.

BRUVS provide valuable data on the diversity and abundance of apex predators, which helps in assessing the overall health of the reef ecosystem. This data is essential for predicting changes in prey species and understanding long-term ecological dynamics. By monitoring apex predators, scientists can detect early signs of ecosystem imbalance and take proactive measures to protect the reef.

Invasive lionfish pose a significant threat to Caribbean reefs. Their voracious appetite and lack of natural predators allow them to outcompete native species for food and habitat, leading to declines in biodiversity. Containment efforts, such as organized lionfish hunts, are necessary to control their population and mitigate their impact on the reef ecosystem.

Caribbean Reef Buddy offers opportunities for volunteers to participate in both apex predator monitoring and lionfish containment. By joining these activities, volunteers contribute to vital conservation efforts, gain hands-on experience in marine research, and help protect the delicate balance of Caribbean reef ecosystems. Participation in these programs not only supports scientific research but also fosters a deeper understanding and appreciation of marine conservation. 

Coral Regeneration & Gardening

Racquel Ward

Operations Director

Growth of a new Generation

In-water coral gardens and active reefscape gardening are vital strategies for restoring and preserving Caribbean reefs. These methods involve cultivating coral fragments in underwater nurseries and then transplanting them onto degraded reef areas. This approach not only helps replenish coral populations but also enhances the structural complexity of the reef, providing habitat for a diverse array of marine species.

Coral gardening has shown significant success in the Caribbean, particularly with species like staghorn coral (Acropora cervicornis). Studies have demonstrated that outplanted corals exhibit similar survival and productivity rates as wild colonies, indicating the effectiveness of these restoration techniques. By increasing coral cover and diversity, these efforts contribute to the overall resilience of reef ecosystems, making them better equipped to withstand environmental stressors.

Volunteers play a crucial role in the success of coral gardening initiatives. At Caribbean Reef Buddy (CRB), volunteers are involved in every step of the process, from growing coral fragments in nurseries to out-planting and monitoring their progress. This hands-on involvement not only supports the restoration efforts but also educates participants about marine conservation and the importance of healthy reef ecosystems.

The impacts of climate change, ocean warming, and the El Niño-Southern Oscillation (ENSO) on coral reefs have been profound. Over the 2023/24 period, increased sea temperatures have exacerbated coral bleaching events, where corals expel the symbiotic algae living in their tissues, leading to a loss of color and vital energy sources. These stressors highlight the urgency of active reef restoration efforts. By maintaining and expanding coral gardens, we can help mitigate some of the damage caused by these global phenomena and support the recovery of affected reefs.

Participation in CRB's coral gardening programs offers volunteers a unique opportunity to make a tangible impact on marine conservation. Through their efforts, volunteers help ensure the survival of coral species and the health of Caribbean reef ecosystems for future generations. 

JOIN US IN 2025

Would you like to be part of our project family in 2025? Fill in the information request form here, and one of our team will reach out to you with an information pack.  Our contact details for more information are also below.

  • The Esplanade
  • Main Street, Hillsborough
  • Carriacou, Grenada
  • West Indies

FREQUENTLY ASKED QUESTIONS

We often get asked questions about our projects, here are some of the most commonly asked ones.

Reef Check offers a scientifically proven and widely accepted methodology that allows citizen scientists, like you, to contribute with minimal training. Unlike other methods that require extensive study and deep marine knowledge, Reef Check enables you to start making an impact almost immediately.

We focus on reef surveys for one week per month from May through to September.  We try to consistently monitor the same sites in the same week of the same month each year, to eliminate seasonal variation from our results.  Depending on the capability of the researchers, a survey on one site can be completed in two to four hours.

Firstly all the data is checked to ensure there are no anomalies coming from the data collection process.  Once the data is verified it is submitted to the Reef Check Global Database.  Reef Check will also validate the data again too.  Additionally the data is submitted to the Fisheries Division of the Government of Grenada and is made available to St. George's University, the University of the West Indies, and Canadore College. 

Monitoring sharks is crucial because they are key indicators of ocean health and play a vital role in maintaining the balance of marine ecosystems. By tracking their populations and behaviors, we can better understand and protect our oceans.

Since the early 2000s, the Caribbean has faced an invasion of Lionfish (Pterois volitans). In their native habitat, they are harmless and admired for their beauty. However, in the Atlantic and Caribbean, they have no natural predators, leading to a population explosion and the overconsumption of smaller reef fish. As part of our reef conservation efforts, divers are encouraged to remove Lionfish, especially from highly productive reefs.

Unfortunately, yes.  We try to ensure that all the lionfish we remove from the reef are removed humanely and safely.  Our priority is reef health and protection.  We also aim to have all the fish available for consumption.

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