A movie that releases salmon's fry from the airplane is a topic, it looks rough, in fact the survival rate is more than 95%



In the Utah state of the U.S. in the Utah state there are movies on the lake of Yamagami releasing the fry of "trout" such as salmon and trout from the airplane. In this way that there are a lot of people who frown at eyebrows "to drop live fry from the sky", but in fact 95% - 99% of the fryed fish are safely sailing safely without losing it safely There seems to be a reasonable way to have it.

Utah Annually Bombs Its Lakes With Baby Fish Dropped From a Plane - Motherboard
https://motherboard.vice.com/en_us/article/a3qbgk/utah-annually-bombs-its-lakes-with-baby-fish-dropped-from-a-plane

This movie released on Twitter by Utah Division of Wildlife Resources (Utah State Resources Bureau) attracts a lot of attention.


The movie that was filmed in GoPro contains a state where a large amount of juveniles and water are dropped onto the lake from a window on the fuselage of a small aircraft flying low altitude.



The larvae delivered gently reached the lake after a fall of about 10 seconds. If you look at the movie, you can see that the plane releases the fish with the altitude lowered beforehand and raises the altitude at a stretch at the timing of the release completion.



There are circumstances unique to Utah in the background that this method which seems to be violent is used. There are more than 650 lakes that can be called fishing landmarks in Utah State and collect many fishing fans, but in order to preserve the appearance of nature, it is necessary to release fry every year. So the Natural Resources Bureau delivers fry to many lakes in the state, but there are problems that many of the lakes are located in places that can not be easily reached by people or cars.

It seems that humans and horses once carried large containers containing frying fish and climbed the mountain path and delivered fry to the lake, but inevitably that many fry fish had died in the way . In addition, it visits several lakes in one itinerary and releases it, but it seems that it was necessary to replace the water of all the containers and keep freshness every time they arrive at the lake, which is a big burden of work and It was getting.



Therefore, the Natural Resources Bureau considered that "a fry carried a fry in an airplane and dropped from the sky". Actually, this method has a history that it has been adopted since 1956, hundreds of thousands of juveniles are released each year. The airplane is dropping fry from the altitude as low as possible so that no damage is given to the fry, and because the larva itself is very lightweight, the air resistance at the time of falling fulfills the role of brake and falls The speed is suppressed.

In the Natural Resources Bureau, it is claimed that the stress level given to fryers is lower in the way of using airplanes rather than discharging fry in land transportation. Actually, the death rate of fry by this method is said to be 5% or less. In addition, it is planned to speed up work by using an airplane, and it is said that it is discharging from 40 to 60 lakes per day.

It can be confirmed in the following movie as well. To reduce stress on fry as much as possible, pilots on airplanes are sometimes forced to maneuver as much as an acrobatic flight. It seems that the pilot receives a high salary only for work requiring a high level of maneuverability.

Plane Drops Hundreds Of Fish Into Lake - YouTube

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in Ride,   Creature,   Video, Posted by darkhorse_log