Fish Population Recovery in Marine Reserves is a Slow Process

Written by on October 28, 2013 in Fish, Marine Life, Policy & Ocean Law

Daily Summary

3D scans reveal deep-sea anglerfish’s huge final meal
The Natural History Museum in London has an exceptionally rare hairy anglerfish. One of only 17 specimens ever found, this one is particularly with an unusual feature: its stomach is huge. Since the anglerfish, Caulophryne pelagica, came to the museum 13 years ago, its stomach has perplexed scientists. They want to know what that anglerfish ate right before it was caught, but it was such a rare find that they didn’t want to cut it open. Thanks to awesome technology, they know now. Using micro-CT scanning, a process that takes thousands of X-rays, researchers were able to create a 3D model of the inside of the anglerfish. They determined that it ate a fish twice its length! Check out the video to see the 3D model.

Dusky grouper, Epinephelus marginatus.

Dusky grouper, Epinephelus marginatus. Photo credit: Albert Kok.

Fish population recovery in a marine reserve: a decade-long question
One of the most comprehensive studies of a marine reserve on the Mediterranean coast was recently published in the journal PLOS ONE. The study took place in the Medes Islands marine reserve which has been protected for more than 25 years. It focused on six fish that had been strongly affected by fishing practices in the area. The selected species are good indicators of the success of marine reserves as they all share a common habitat, have long lives and are vulnerable to overfishing. Of the six, three species have almost completely recovered, one is approaching population stabilization, one is still increasing and only one is decreasing. The study revealed that recovery of fish populations in the Mediterranean coast is a process that takes decades. The findings stress the importance of long-term surveillance of marine ecosystems.

Scientists develop new method to help global coasts adapt to sea-level rise
A team of scientists has developed a new method to help coasts around the world adapt to sea-level rise over the next century. The timing and geographical patterns of global sea-level rise remains uncertain, but we know that many of the world’s coast face certain danger. Current methods for assessing the impact of sea-level rise vary significantly, making the development of adaption plans and policies very difficult. The new method combined all available data on many climate and non-climate (like earthquakes) variables that will contribute to sea-level change, in order to create realistic scenarios of sea-level rise at any location. These scenarios will help policy-makers make better decisions regarding sea-level rise in the future.

TV Ratings: CNN’s ‘Blackfish’ Doc Scores Big With Younger Viewers
Blackfish made CNN very popular on Thursday, bringing in 1.36 million viewers. If you missed it, don’t worry – it will be on again this Saturday, November 2 at 9:00 p.m. ET.

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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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