Fish Orgy stun dolphins
Fish in the Gulf of California publish in the mating period, so loud sounds that can stun other sea creatures. This is the biggest ever recorded fish sounds, which should help save an endangered species.
Article describing results published in the journal Biology Letters.
Mexican Corvina (Cynoscion othonopterus) is threatened with extinction species of fish only to the Gulf of California coasts of Mexico, as well as in the Delta of the Colorado river. One such fish during the breeding season produces a mating call resembling “really loud gun”, which consists of several individual sound pulses. When hundreds or thousands of animals gather to mate once a year, the “collective chorus sounds like the crowd in the stadium or perhaps as a very loud beehive”, says co-author Timothy Rowell of the University of San Diego.
The sounds are so loud that it temporarily deafened by a nearby marine mammals. This only happens in a couple of weeks of the breeding season, when all the adults of the Mexican Corvina collected in an area of less than a percent of normal range.
At this time, their sound can be felt as a trembling of boat hulls, and even hear over the water. Fishermen are attracted to this cluster of fish that grows up to meters and weighing about 12 pounds. Boat with one network can very quickly catch up to two tons of fish.
Scientists have found in 2014 sound recording equipment under the water to track the number of fish in troubled waters.
It turned out that lately the fish have become smaller, which can be considered a symptom of overfishing. The researchers conclude that it is necessary to regulate fisheries to ensure the continued existence of this wonderful action in the wild.