4 more stories to talk about today that touch on science and management of the ocean.
Nathan Johnson and I are back at it again with another Ocean Talk Friday. Today we discuss the following stories:
1) Scientists design marine protected area based on protection and fish production for fishing community;
2) Rockfish larvae travel as a group of siblings;
3) DNA from Ocean can tell researchers where the fish and other species have been; and,
4) Jellyfish can also be used as a way to find out where the fish have been caught from based on the jellyfish’s chemical composition.
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Today we discussed the following:
- A team led by scientists from the Smithsonian’s Marine Conservation Program report in the journal Conservation Letters Nov. 17 that they have designed a model network of marine reserves off the Caribbean coast of Honduras, which can support the long-term preservation of spiny lobsters within the country’s waters while also increasing fishing yields of the species in fishing areas outside the reserves’ borders.
- A splitnose rockfish’s thousands of tiny offspring can stick together in sibling groups from the time they are released into the open ocean until they move to shallower water, research from Oregon State University shows.
- Sequencing fragments of DNA from water 1km (0.6 miles) below the surface can determine the type and quantity of fish present, say Danish scientists. The DNA-based technique could be used for monitoring fish sustainably without having to catch them.
- Seafood fraud (mislabeling seafood, which happens sometimes accidentally and often intentionally to fetch a better price) is a big, expensive problem. Researchers are working on ways to test seafood in order to determine if it was labeled correctly. This is a difficult task because, even if DNA tests reveal that a particular piece of seafood is the species it’s supposed to be, we still don’t know if it came from the right location. A research team from the University of Southampton may have the answer.
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