Rays at risk

Rays are a group of fish whose bodies are flattened and have a skeleton made of cartilage – the same material that forms much of human ears and noses. They occur throughout the world except at the poles. Similar to sharks, rays are targeted by fishers and overfishing is causing a global decline in abundance. A recent study found that rays are even more threatened than shark species: using IUCN criterion, 36% of rays are considered threatened compared to 31% for sharks[1]. These beautiful creatures are particularly threatened in the tropics and subtropics, and several find their home in Watamu Marine National Park (WMNP) where A Rocha Kenya assists local managers in protecting threatened ray species.

Six ray species and one guitarfish, which are technically rays, inhabit WMNP based on A Rocha’s research over the past 10 years[2]. The Shark Conservation Fund provided resources to study these species in more detail this past year, including education and livelihoods work among local fishers outside of WMNP.

Four methods were used to study these species: baited remote underwater video, timed swims, beach walks, and SCUBA surveys. Three of the rays were either Endangered or Critically Endangered and one species is considered Data Deficient with this study helping to better understand its threatened status. Rays were most often found in sandy and seagrass habitats, indicating the importance of these often-overlooked areas in WMNP where the focus has frequently been on coral reefs. Education events in eight local schools and among ten community groups helped children and adults better understand the beauty and value of these amazing species.