View Single Post
Old 07-26-2016, 11:51 AM
squidfood squidfood is offline
Join Date: Nov 2006
Posts: 352
For my grad school work, I studied salmon food chains in the open ocean. There's a species of shark called - the Salmon Shark - whose diet for large amounts of time is, you guessed it, salmon. These salmon (large adult salmon - the sharks follow the returning runs) feed mainly on squid, and the squid feed mainly on crustaceans - krill and copepods - and finally those crustaceans feed on phytoplankton.

So the Salmon Sharks are 3 jumps from plants, so not a lot of direct "pre-digested" plant consumption going on. They eat the whole salmon of course. While I don't know their nutrient requirements, if nothing else, they get a good dose of carotenoids that way.

Last edited by squidfood; 07-26-2016 at 11:52 AM.