Sharks - CSIRO Sharks contribute to healthy oceans as top predators in the marine ecosystem But some sharks, such as the iconic white shark, are under threat and vulnerable to depleting numbers We provide knowledge and advice to help manage conservation for a number of species under threat
DNA from historical and trophy samples provides insights into . . . contemporary white shark teeth from South Africa We have also used this method to recover se - quences from dried skin and jaw cartilage of Medi-terranean and Pacific Ocean white sharks collected 34 to 129 yr ago This resource was used to test whether the prevailing Pacific origin hypothesis (Gubili et al 2011) of Mediterranean white sharks
Don’t Swim Here: Why ‘Shark Alley’ Attracts A Great White . . . Shark alley, located in the waters around Dyer Island, South Africa, is famous for having the highest population density of great white sharks in the world Dyer Island is a small island located only a few miles off the southern shores of mainland South Africa
Tracking Great White Sharks – July 9, 2017 – Discovery of . . . Note the bite marks, scrapes, and scars on the right end (stern) of the AUV, damage caused by shark attacks on the vehicle Image credit: Amy Kukulya, Woods Hole Oceanographic Institution (right) Camera view of a great white shark biting the AUV while in the water column Image credit: Oceanographic Systems Lab Woods Hole Oceanographic
Northern Elephant Seal - NOAA Fisheries Northern elephant seals were once thought to be extinct due to commercial sealing in the 1800s A small population survived in Mexico and the population began to steadily increase in the early 1900s Today, robust populations of northern elephant seals in the U S and Mexico are derived from those few hundred individuals that survived in Mexico
Tracking Sharks – Shark Research Conservation Program (SRC . . . Learn more on the Adopt A Shark page F A Q Why does a shark transmission stop? Satellite tags are essentially fancy computers attached to live sharks There are a number of things that can happen to a tag once it is released In order for a tag to transmit the shark must break the surface of the water This can sometimes be infrequent and