Protect and Restore Aquatic Ecosystems in Belize

 The Maya rain gods showered upon Belize these last few months, making it very difficult to get out into the field. We had quite a few cold spells come through, which would make the crocs go deep into the mangrove to stay cozy and warm (we don’t blame them!).

Three habitat assessments were carried out within the Placencia Lagoon system. Survey efforts were prioritized in this area because the government and the communities want to move forward in the protection of the Placencia Lagoon as a wildlife sanctuary. Thus our information is pertinent in providing the necessary scientific data needed to illustrate the plethora of biodiversity in this area, and how protection is also ensuring the protection of livelihoods dependent on the health of the lagoon. 

Given it seemed like the evening is when the rains would come, we decided to try to catch crocs in the day… which is practically impossible, unless they are babies. We knew of an area around Placencia Lagoon in which some crocs from last year’s hatch were hanging around. We brought out our Next Gen Croc kids to come out along with one of our volunteers to assist in the catching. Although these babies were quite fast, we were able to get some capture data that will help us in understanding the health of the lagoon.

In March, we did get a small break amongst the rain and conducted population surveys of Morelet’s crocodiles in Orange Walk. Orange Walk Town a few years ago suffered from a catastrophic pollution event, in which pollutants in the water led to fish kills, and many crocodiles dying. Although through our nocturnal eyeshine surveys we observed a stable number of crocodiles, capture surveys illustrate animals that are in chronic stress given pollutants in the water (i.e., lethargy, low body mass, etc). As we can imagine, what impacts the crocs negatively, should also be a public health concern for communities as well.

Thank you to all who have donated towards our project through GlobalGiving. This has been a long and VERY rainy season, therefore the weather prevents us from doing much research. We are very grateful to all of those that have donated and are willing to help us maintain healthy aquatic ecosystems in Belize for wildlife and communities. Our work is currently considered a model project by various wildlife researchers and ecotoxicologists given our results from previous years.

Dr. Marisa Tellez and the CRC team

Protect and Restore Aquatic Ecosystems in Belize

August 1, 2025 – December 15, 2025

From 1 August to 15 December, the Crocodile Research Coalition conducted a series of field surveys to assess crocodilian populations across Belize. During this period, three nocturnal eyeshine surveys (NES) were completed, resulting in the observation of 10 crocodiles. In addition, ten capture surveys were conducted, during which a total of 33 individuals were captured for long-term monitoring and ecotoxicological analyses. These efforts included both Crocodylus moreletii (Morelet’s crocodile) and Crocodylus acutus (American crocodile) across multiple regions of the country.

Complementary to population surveys, four habitat assessments were carried out within the Placencia Lagoon system. Survey efforts were prioritized in this area due to increasing coastal development and associated anthropogenic pressures, which may influence crocodile habitat quality, prey availability, and human–crocodile interactions. These habitat surveys aim to establish baseline environmental conditions and inform future conservation and management strategies.

Thank you to all who have donated towards our project through GlobalGiving. This has been a long and VERY rainy season, therefore the weather prevents us from doing much research. We are excited to say that we have sent samples off to the United States to our colleagues so they can begin the process of analyzing heavy metals in these tissue samples.

We are very grateful to all of those that have donated and are willing to help us maintain healthy aquatic ecosystems in Belize. Our work is currently considered a model project by various wildlife researchers and ecotoxicologists given our results from previous years. Thank you all so

Dr. Marisa Tellez and the CRC team