Carnivorous conchs to blame for oyster decline

David Kimbro, a marine and envi­ron­mental sci­ence pro­fessor at North­eastern Uni­ver­sity, has solved the mys­tery of why reefs in Florida inlets were expe­ri­encing large num­bers of oyster loss. Drought and sub­se­quent high salt levels in water led to a pop­u­la­tion spike in one of the oys­ters’ main preda­tors: conchs.

3Qs: Lionfish roar into tropical waters

Inva­sive species can wreak havoc on ecosys­tems, like the Atlantic Ocean off the South­eastern U.S. and the Caribbean. Researchers have strug­gled in recent years to combat the pres­ence of lion­fish — which are native to the Indo-​​Pacific waters. Annette Govin­darajan, an instructor in North­eastern University’s Depart­ment of Earth and Envi­ron­mental Sci­ences, explores the dan­gers that this fish and other inva­sive species present.