If you slice into a tuna like we did in Ichthyology class, here is what you’ll see: a layer of red muscle sandwiched between white muscle (which looks pink in this photo). The oxygen-rich red muscle helps tunas power through the water. Having red muscle located near the core of their body makes tunas unique from many other fishes, and allows them to keep their muscle at a higher temperature than the surrounding water. Warmer muscle means faster contractions and increased power. No wonder tunas are some hot-blooded fish!
- Welcome! Drop-in to the "real-life tales" of graduate students at the Moss Landing Marine Laboratories in California, and find out what being a marine biologist (or chemist or geologist or physicist...) is all about! Questions or comments? We'd love to hear from you: firstname.lastname@example.org
- Alaska algae Antarctica bag that trash Baja beaches Bering Sea biological oceanography birds boats careers Chemical Oceanography class coral deep-sea dissection diving education feeding feeding and diet field trip fieldwork Fiji fish fishing food art Friends of MLML Geological Oceanography Geological Oceanography Lab geology habitat Ichthyology intertidal invertebrates invertebrate spotlight jellies kelp krill marine mammals MLML Monterey Bay Aquarium Moss Landing Marine Laboratories Moss Landing Marine Labs oceanography octopus Open House Pacific Shark Research Center penguins Physical Oceanography plankton R/V Point Sur reproduction research rockfish rocks ROV Science Cafe science equipment Seabirds sea turtles seaweed sharks skeletons snails sponges squid sunset surveys sustainable seafood teacher feature thesis research trawl Vertebrate Ecology Lab video whales