There have been several previous Green Antilles posts about grouper conservation in the Cayman Islands. Here’s some data that helps shed light on why that conservation effort is important: a quarter of grouper species are being fished to extinction, and the Caribbean Sea is home to a disproportionately high number of the threatened grouper species.
Groupers, a family of fishes often found in coral reefs and prized for their quality of flesh, are facing critical threats to their survival. As part of the International Union for Conservation of Nature (IUCN) Species Survival Commission, a team of scientists has spent the past ten years assessing the status of 163 grouper species worldwide. They report that 20 species (12%) are at risk of extinction if current overfishing trends continue, and an additional 22 species (13%) are Near Threatened.
These findings were published online on April 28 in the journal Fish and Fisheries.
“Fish are one of the last animal resources commercially harvested from the wild by humans, and groupers are among the most desirable fishes,” said Dr. Luiz Rocha, Curator of Ichthyology at the California Academy of Sciences, and one of the paper’s authors. “Unfortunately, the false perception that marine resources are infinite is still common in our society, and in order to preserve groupers and other marine resources we need to reverse this old mentality.”
The team estimates that at least 90,000,000 groupers were captured in 2009. This represents more than 275,000 metric tonnes of fish, an increase of 25% from 1999, and 1600% greater than 1950 figures. The Caribbean Sea, coastal Brazil, and Southeast Asia are home to a disproportionately high number of the 20 Threatened grouper species. (A species is considered “Threatened” if it is Critically Endangered, Endangered, or Vulnerable under IUCN criteria.)
Groupers are among the highest priced market reef species (estimated to be a multi-billion dollar per year industry), are highly regarded for the quality of their flesh, and are often among the first reef fishes to be overexploited. Their disappearance from coral reefs could upset the ecological balance of these threatened ecosystems, since they are ubiquitous predators and may play a large role in controlling the abundance of animals farther down the food chain.
Read more in the full Science Daily article, which concludes by explaining how community and consumer awareness are vital for grouper conservation.
[Photo: Carl Stout]
