An individual spawning Gulf corvina, say the researchers, utters a mating call resembling “a really loud machine gun” with multiple rapid sound pulses. Rowell and colleague Brad Erisman of the University of Texas used specialised underwater sound gear to eavesdrop on spawning Gulf corvina, a popular eating fish. A fleet of 500 boats nets as many as two million fish each spawning season, placing the species in peril. According to the International Union for the Conservation of Nature (IUCN), which keeps a red list of endangered species, the Gulf corvina is “vulnerable” to extinction. Ocean acidification is deadly threat to marine life, finds eight-year study Read moreThe spawning spectacle, added the researchers, deserved “increased appreciation and conservation”.

Source: The Guardian December 20, 2017 02:15 UTC