Thanks to http://www.audible.com/minuteearth for sponsoring this video.
A new fish counting method has revealed there are ten times more fish in the sea than we previously thought.*
*But unfortunately, this doesn't mean we're not overfishing.

If you liked this week’s video, we think you might also like these things:
Seeing the Sky as Galileo Saw it: http://tdc-www.harvard.edu/software/s...

We try to leave jargon out of our videos, but if you want to learn more about this topic, here are some handy keywords to get your googling started:
- Milky Way: Earth's home galaxy
- The Malaspina Expedition 2010: A research project to explore ocean biodiversity by recreating the path of a late 18th Century scientific expedition.
- Sonar: A technique that uses soundwaves to map out underwater objects.
- Avoidance of Trawl: A behavior in which fish move out of the way of an incoming net, perhaps through bioluminescent signalling.
- Bioluminescence: Light produced by a living organism.
- Deep water fish: Fish who live more than 500m below the ocean surface in the Mesopelagic, Epipelagic, and Bathypelagic zones.
Species featured in this video:
- Stoplight loosejaws (Malacosteus niger)
- Common Fangtooth (Anoplogaster cornuta)
- Lanternfishes or myctophids (Family Myctophidae)
- Bristlemouths (Genus Cyclothone): The most populous vertebrate on Earth.

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- Today I Found Out
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Credits (and Twitter handles):
Script Writer: David Goldenberg (@dgoldenberg)
Script Editor: Emily Elert (@eelert)
Video Illustrator: Ever Salazar (@eversalazar)
Video Director: Emily Elert (@eelert)
Video Narrator: Emily Elert (@eelert)
With Contributions From: Henry Reich, Alex Reich, Kate Yoshida, Omkar Bhagat, Peter Reich, Rachel Becker
Music by: Nathaniel Schroeder: http://www.soundcloud.com/drschroeder


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Kaarvedt, S., Staby, A., Aksnes, D.L. (2012). Efficient trawl avoidance by mesopelagic fishes causes large underestimation of their biomass. Marine Ecology Progress Series,456(1-6). Retrieved fromhttp://www.int-res.com/articles/featu...

Broad, W. (2015). An Ocean Mystery in the Trillions. New York Times, D1. Retrieved from:http://www.nytimes.com/2015/06/30/sci...

Xabier Irigoien, T. A. Klevjer, A. Røstad, U. Martinez, G. Boyra, J. L. Acuña, A. Bode, F. Echevarria, J. I. Gonzalez-Gordillo, S. Hernandez-Leon, S. Agusti, D. L. Aksnes, C. M. Duarte & S. Kaartvedt (2014). Large mesopelagic fishes biomass and trophic efficiency in the open ocean. Nature Communications, 5, 3271. Retrieved from http://www.nature.com/ncomms/2014/140...

Kaarvedt, S. (2016). Personal Communication.

Duarte, C. (2016). Personal Communication.

Direct download: ME_85_-_Why_We_Sucked_At_Counting_Fish_Until_Now.mp4
Category:general -- posted at: 12:00pm EDT