The study summarized the results from a ten year tagging program called the Tagging of Pacific Predators (TOPP). The TOPP program deployed 4,306 tags on 23 species in the North Pacific Ocean resulting in data that covers 265, 386 days-an extraordinary scale by industry standards. Both TOPP and FMAP were projects under the recently concluded Census of Marine Life program.
TOPP scientists have been tagging marine predators for ten years. Species like sharks, whales, tuna, seals and marine turtles are caught, tagged with an electronic device that keeps track of the animals’ location, and released back into their natural habitat. Their movements are then monitored by researchers at several institutions in California. Dr. Jonsen helped synthesize that data over the last 2 years right here at Dalhousie.
“We wanted to be able to build a story on behalf of these marine predators. Tagging allows us to answer questions like, ‘where are they going’, ‘how long are they there for’, and ‘how long does it take them to get there.’ By tracking the movements of marine predators, we can build a map of the important ‘traffic routes’ in the ocean, something we haven’t been able to do until now,” Dr. Jonsen explains.
What the scientists discovered through this study was that that the California Current large marine ecosystem is a significant habitat for species like tunas, sharks, salmon and sea turtles.
The data collected also indicates these species are quite predictable in their movements and time their migrations so they arrive in the California Current when it is most productive. Species, such as tunas and sharks, residing in the California Current migrate north and south seasonally within this region as it warms and cools.
The study also indicates that predators, like the leatherback turtle, travel back and forth from Indonesia and Monterey Bay, California each year like clockwork.
Jonsen believes that although there is still a lot more work left to be done on predicting the movements of marine predators, this study is a step in the right direction.
“Knowing where and when species overlap is important information that can be used to manage and protect these large predators and their ecosystems from human activities.”
Katie McDonald | Newswise Science News
Climate Impact Research in Hannover: Small Plants against Large Waves
17.08.2018 | Leibniz Universität Hannover
First transcription atlas of all wheat genes expands prospects for research and cultivation
17.08.2018 | Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
17.08.2018 | Physics and Astronomy
17.08.2018 | Information Technology
17.08.2018 | Life Sciences