The salmon, in all their known
species, is a famous fish for the thing it must do to keep their circle of life
going. Hatching from eggs in freshwater streams and rivers, they go downstream
into the sea as adults, and then swim back upriver in time for spawning season.
This is a tedious and treacherous journey, with salmon trying to survive not
only fishermen and predators but also obstacles like rapids and waterfalls.
Hydroelectric dams in rivers tend to defeat salmon runs, but a tech company
developed a system to “shoot” salmon through pressurized flexible tubes over
dams to surmount them. This was back in 2014, but the “Salmon Cannon” gadget
has found new notoriety in social media recently.
USA Today reports that the Twitter user base went absolutely bananas
over the weekend following a tweet that went viral because it depicted the
Salmon Cannon. The device, developed some five years ago by tech designer
Whooshh Innovations, was initially developed as a means of helping restore freshwater
migration patterns of fish, particularly salmon, that are interrupted by large
obstacles on a river route like dams. Pressurized air propels fish through a
soft tube over long distances and releasing them onto another body of water.
This salmon cannon transports the fish between bodies of water. (Via @CheddarGadgets)https://t.co/2eFQceFgzv pic.twitter.com/AHK0QJMCKf— Cheddar (@cheddar) August 7, 2019
As stated, the system is already
years old, but a recent spotlight of the Salmon Cannon last week brought the
device to new prominence on social media, with many jokes and memes spawning in
its wake like salmon eggs. Gags on the mechanism include the likes of
comparisons to Elon Musk’s yet-unrealized Hyperloop concept. The frenzy over
the “innovation” has gotten to the point that HBO’s late-night talk show and
news satire “Last Week Tonight” posted online that they actually ran a piece on
the Salmon Cannon on the year it first became public knowledge, with host John
Oliver “demonstrating” their self-built cannon by shooting dummy salmon into
other programs.
Elon Musk has finally had his hyperloop dreams come true. https://t.co/JwSOIoiRsm— Hank Green (@hankgreen) August 11, 2019
For everyone just discovering the salmon cannon, please enjoy this segment from 2014: https://t.co/SEdMJppFA7— Last Week Tonight (@LastWeekTonight) August 11, 2019
With regards to the revived notoriety
of his company’s invention, Whooshh Innovations CEO Vincent Bryan says in
interview that the footage of effortlessly propelling fish through the Salmon
Cannon is a lot more complicated, with calculations for fish size and applied
pressure factoring into the machinery that powers the tube. The old 2014
footage of hand-feeding salmon into the tube has actually been replaced by an
automated entryway where fish swim in on their own.
Bryan adds that despite the
seeming physical stress it puts on fish, the Salmon Cannon is a quicker and
less injurious method of getting salmon over dams than the traditional “fish
ladder” system. Its other applications have also been presented, such as transferring
catch from fish farms by producers or evacuating fishes from drought-stricken
areas.
Image
from The New Daily
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