Hello my fellow swimmers!
It’s a bit late, but I submit to the latest episode of AquaCast! This episode we tackle Sixgill Sharks and Ocean dead zones. Have a listen, and enjoy! For more information, please explore the bibliography below.
Enjoy, and Keep Swimming!

By NOAA Ocean Explorer from USA – Sixgill Shark, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=51048917
Sixgill Shark resources
Froese, Rainer and Pauly, Daniel, eds. (2017). “Hexanchus griseus“ in FishBase. 01 2017 version.
“Huge deep sea shark scavenges food”. BBC Earth Website. 2/26/2017
Cook, S. F.; L. J. V. Compagno (2005). “Hexanchus griseus“. IUCN Red List of Threatened Species. Version 2010.1. International Union for Conservation of Nature. Retrieved 2/26/2017.
Wikipedia. “Bluntnose Sixgill Shark” Wikipedia. Wikimedia Foundation. Last Edited 01/22/2017. Accessed 2/26/2017. https://en.wikipedia.org/wiki/Bluntnose_sixgill_shark
Werner, Michael; Campbell, Katie. “Searching for the Mystery Sharks of Seattle” KCTS9.org. Cascade Public Media. Published June 22, 2016. Accessed. February 26, 2017. http://kcts9.org/programs/wildlife-detectives/searching-mystery-sharks-seattle
Xavier G, KCTS9 Staff. “Sixgill Sharks: Puget Sound’s Open Secret.” KCTS9.org. Cascade Public Media. Piublished June 16, 2016. Accessed 2/28/2016. http://kcts9.org/programs/wildlife-detectives/sixgill-sharks-puget-sounds-open-secret
Puget Sound Dead Spots Sources
Dissolved oxygen and hypozia in Puget Sound (June, 2016) Encyclopedia of Puget Sound, retrieved 12/15/2017 https://www.eopugetsound.org/articles/dissolved-oxygen-and-hypoxia-puget-sound
NOAA(10/10/2017) What is a dead zone? (Rerieved 12/15/2017) National Oceanic and Atmospheric Administration. https://oceanservice.noaa.gov/facts/deadzone.html
Gulf Hypoxia (2017) Journey with Nature (Retrieved 12/15/2017) The Nature Conservancy