1. Sea
Turtles Numbers May Be Overestimated By a Factor of Two
Scientists
studying green sea turtles have assumed that females lay 3.5 clutches of eggs
per season. But a recent study suggests
that they can lay twice that much per season.
If true for all 7 species of sea turtles, it would mean scientists have
been overestimating the entire sea turtle population. The study only tagged 18 turtles, and the number
of clutches varied from 2 to 9, with an average of 6.
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The Mariana Trench is the deepest point on Earth. Its remoteness suggests that it is off limits to human’s touch, but scientists have found that it is not the case. Scientists collected amphipods, a small
crustacean, from two trenches and found PCB levels to be “off the charts.”
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3. New Hammerhead Shark Species Found in the Caribbean
A new species of bonnethead shark has been
discovered by DNA testing. Bonnetheads
are of “Least Concern” for extinction according to the international group, the
IUCN. Previously believed to be widely
distributed, a new species means that there could be two populations narrowly
distributed. This would have conservation consequences.
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4. 90 Percent of Fish Used for Fishmeal Are Edible to Humans
20 million tons of fish are caught a year to be used in
products not directly consumed by humans, such as fishmeal fed to farmed fish
or land animals. This food grade fish is
needed by 2.9 billion people in the countries that rely on fish as their main
source of protein. There is also a trend
to used a larger variety fish as many stocks have been over-fished.
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5. Ancient Baby Sea Creature Found Inside Fossilized Mother
A 245 million year old fossil mother has been found with a
fetus inside her. The Dinocephalosaurus fossil was
found in China. Dinocephalosaurus was
a long-necked reptile that gave live birth instead of laying eggs.
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6. Wisdom the Albatross Has a Chick at 66 Years Old
Wisdom the Laysan albatross is the oldest known wild bird at 66 years old. She just hatched a baby chick, the second year in a row for her. Most female albatrosses lay one egg every other year. Wisdom lives on Midway Atoll in the Papahānaumokuākea Marine National Monument in Hawaii.
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Sea Save Foundation is committed to raising awareness of marine conservation. The Week in Review is a team effort produced by the Sea Save staff to provide a weekly summary of the latest in marine research, policy, and news.
