The CO2 Curve, a Deadly US Fishery and a Robot Turtle

Written by on April 24, 2013 in Marine Life

Daily Summary

The Keeling Curve, named after Charles David Keeling, the scientists who pioneered atmospheric CO2 research in the 1950s.

The Keeling Curve, named after Charles David Keeling, the scientists who pioneered atmospheric CO2 research in the 1950s. Photo credit: Vancouver Island University via photopin cc.

As CO2 Approaches Symbolic Milestone, Scripps Launches Daily Keeling Curve Update

By now, we’ve all seen the iconic (and somewhat depressing) saw-tooth graph showing the increase in atmospheric carbon dioxide. Unfortunately, that graph continues to grow and as CO2 levels approach a “symbolic milestone” Scripps Institution of Oceanography is now providing daily updates of atmospheric CO2 measured at Hawaii’s Mauna Loa. Scripps researchers believe we will surpass 400 parts per million (ppm) as early as May 2013 and the rate won’t slow down. To put that number in perspective, CO2 levels “never exceeded 300 ppm” for the past 800,000 years.

California Fishery Declared One of Deadliest for Endangered Whales

A federal report released on Monday ranks California’s drift gillnet fishery as one of the deadliest fisheries for marine mammals–particularly for endangered sperm whales–in the nation. This fishery catches and discards an average of more than 100 protected whales, dolphins, seals and sea lions every year, along with thousands of sharks an unwanted fish. This gillnet fishery, along with the Hawaii tuna longline fishery may be classified as a “Category 1” fishery, meaning it causes “frequent” injury or death to marine mammals.

FlipperBot: Sea Turtles and Flipper-Driven Robot Reveal Principles of Moving on Sand and Other Granular Media

How to sea turtle hatchlings crawl through all that sand to make it to the ocean? A research team analyzed the movement of hatchlings in the wild and created a robot to further study the movement. The following video explains it all and it’s pretty impressive.

A hatchling Kemp's Ridley making its way to the ocean.

A hatchling Kemp’s Ridley making its way to the ocean. Photo credit: NOAA Fisheries Protected Resources.

Copyright © 2013 by Marine Science Today, a publication of Marine Science Today LLC.

About the Author

About the Author: Emily Tripp is the Publisher and Editor of She holds marine science and biology degrees from the University of Miami's Rosenstiel School of Marine and Atmospheric Science and a Master of Advanced Studies degree in Marine Biodiversity and Conservation from Scripps Institution of Oceanography. When she's not writing about marine science, she's probably running around outside or playing with her dog. .


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