An interesting new study using stable isotopes to look at the feeding ecology of more than 5,000 individual sharks across 114 species. The cartoon above does a nice job of characterizing this study, and here is a good summary.
Shark populations are declining worldwide and shark awareness and conservation is necessary. However, some interesting news from a recently published paper suggests that we might be overestimating the density of sharks required on reefs to resemble pristine reefs. This is very exciting, as shark researchers and conservationists’ goals are now potentially more realistic. Read more in this short (650 words, […]
A guest post from Oliver Shipley at the Cape Eleuthera Institute. Photos courtesy of Sean Williams. Thanks Oliver!
Across the Caribbean, overexploitation has led to growing concern regarding the fate of apex predator populations, particularly sharks, which constitute an important structural component of many marine ecosystems. In 2011 The Bahamas outlawed the commercial fishing, and trade of any shark related […]
Cool new study by John Bruno’s lab at the University of North Carolina. They surveyed sites across the Caribbean region and use these data to project back to how many fish there used to be before the fishing pressure. Here is a video summary of the paper from the authors, including footage from The Bahamas. Also, some popular press […]
New socio-economic study on the value of sharks in The Bahamas (paper here). The paper Abstract summarizes the findings well:
Elasmobranch populations in The Bahamas offer a unique juxtaposition to the widespread decline of many species around the world, largely due to management and conservation initiatives implemented over the last 25 years. Several industries have been built around the diverse […]
Sulikowski, James A. et al. Seasonal and life-stage variation in the reproductive ecology of a marine apex predator, the tiger shark, Galeocerdo cuvier, at a protected female-dominated site. […]
‘To unify shark conservation efforts worldwide, marine life experts have just launched a new database containing information on some of the planet’s most threatened sharks.
The online tool, called the “Database of measures on conservation and management of sharks,” also includes information on threatened skates, rays and chimaeras, which are all related to sharks. It was created by FAO-CITES, […]
This new study (see paper here) investigated whether three species of shark utilize deep Caribbean reefs. Shark species studied were Tiger, Lemon and Caribbean Reef sharks. The researchers found that out of the three species, Lemon sharks were consistently found at deep reefs during spawning aggregations. Though this study was done in the U.S Virgin Islands, it would […]
As expected, last week was an absolute success in Abaco as we hosted Sharks4Kids to present at multiple public schools on Great Abaco Island (previous post here). We started our week down south in Sandy Point at JA Pinder Primary, then to Crossing Rocks Public School, making our way to Central Abaco Primary School, and then finished up […]