EDFish

Selected tag(s): shark research

Saving sharks by reducing bycatch

Caribbean Reef Sharks. Photo: Noel Lopez-Fernandez

Caribbean Reef Sharks. Photo: Noel Lopez-Fernandez

This week, sharks make their annual summer migration to the Discovery Channel for Shark Week. It’s a great time to learn about some of the advances in shark research happening every day. In just the time since Shark Week 2015, we learned new things about where we can find the world’s largest concentration of sharks, how great white sharks migrate, how sharks use their photon conductive noses to hunt fish, and how catsharks grow brighter the deeper they swim. We’re also discovering new species to add to the growing list of hundreds of different sharks every couple of weeks.

Yet, with all these new findings, we still have a lot to learn about these keystones to our ocean ecosystems. Off the East Coast and in the Gulf of Mexico, a large number of shark species swim in and out of U.S. waters. The National Marine Fisheries Service (NMFS) manages these species of sharks—including many known to be highly susceptible to overexploitation such as great whites, whale sharks, and bigeye threshers. Read More »

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Expedition Cuba Part 3: Collaborative Research Establishes Baseline Monitoring in Cuba

Cuban and Mexican researchers, Alejandra Briones and Ivan Mendez, look at a sample that will be analyzed in CIM’s lab to assess the faunal communities in the water column.

By: Kendra Karr and Valerie Miller

Part III of a blog series detailing a February 2013 Research Expedition in Cuba organized by EDF Oceans’ Cuba, Science, and Shark teams and funded by the Waitt Foundation. A team of scientists from Cuba, Mexico and the U.S. along with EDF staff set sail to share knowledge, scientific methodologies and to survey shark populations in Cuba. The tri-national expedition was led by Cuban scientists from University of Havana’s Center for Marine Research (CIM) and U.S. scientists from the Mote Marine Laboratory in Florida.

Researchers from Cuba, Mexico and the U.S. participated in an exploratory research cruise in the Gulf of Batabanó along the Southern coast of Cuba to monitor shark populations, local faunal communities and to train fellow team members in monitoring techniques.  Leaving the port of Batabanó, the RV Felipe Poeytransected the shallow, soft-sediment habitat that comprises the majority of the Gulf.  The cruise set off for the remote and sparsely populated Isle of Youth, the largest island in the Canarreos Archipelago.  Canarreos Archipelago is home to a national park and several marine protected areas (MPAs) which contain habitats that possess ecotourism potential and provide refuge for ecologically and economically important species such as lobsters, sharks and finfish. Read More »

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Expedition Cuba Part 2: Scientists Partner with Fishermen to Explore Cuban Waters

The tuna fishing crew meets up with the research team in the Gulf of Batabanó.

By: Valerie Miller & Kendra Karr

Part II of a blog series reporting on the February 2013 Research Expedition in Cuba organized by EDF Oceans’ Cuba, Science, and Shark teams and funded by the Waitt Foundation. A team of scientists from Cuba, Mexico and the U.S. along with EDF staff set sail on an exploratory research cruise to share knowledge, scientific methodologies and to survey shark populations in Cuba. The tri-national expedition was led by Cuban scientists from University of Havana’s Center for Marine Research (CIM) and U.S. scientists from the Mote Marine Laboratory in Florida.

In early February the team of researchers boarded the RV Felipe Poey and departed the south coast of Cuba for the Gulf of Batabanó.  The nine-day expedition was designed to monitor shark populations, collect baseline data on plankton and benthic communities and train scientists in data collection techniques for future monitoring.  It took the entire first day to steam to the Isle of Youth.   By the evening the smooth waters and night sky had blended into one endless black landscape. As a sense of isolation set-in, the boat turned towards some lights in the distance – which emanated from a lobster station floating in the middle of the Gulf.  After a day crossing the ocean with no land in sight, it felt strange stepping off the boat and onto the deck at the station. The lobster fishermen, friends of the Cuban scientists, showed us around the facility which stores their daily catch in pens.  This moonlight meeting was just the first of many productive interactions with fishermen throughout the journey. Read More »

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Expedition Cuba: A Tri-National Journey to Share Science and Survey Sharks, Part 1

Shark researchers from Cuba, Mexico, &  the U.S. capture a bull shark in the Gulf of Batabanó, Cuba.

Shark researchers from Cuba, Mexico, & the U.S. capture a bull shark in the Gulf of Batabanó, Cuba. (From L to R: Pedro Reyes and Alexei Ruiz of the Center for Marine Research – Cuba, Jack Morris of Mote Marine Laboratory – USA) Photo Credit: Valerie Miller

 

By: Kendra Karr & Valerie Miller

Intro by Dan Whittle: With generous support from the Waitt Foundation, Environmental Defense Fund (EDF) has launched a new initiative to support collaborative field research with scientists from the University of Havana's Center for Marine Research. This initiative is enabling teams of Cuban, U.S. and Mexican scientists to carry out a series of scientific expeditions to conduct important new research on Cuba's remarkable—but understudied—marine and coastal ecosystems. This effort will also support year-round port sampling of shark fishery landings at Cuban ports, contributing to EDF’s overarching tri-national shark conservation efforts throughout the Gulf of Mexico.  

On our inaugural expedition in February 2013, our tri-national team embarked on a research cruise off of Cuba's south coast in the Gulf of Batabanó to share knowledge and scientific methods, and to survey migratory shark populations. The expedition was organized by EDF Oceans’ Cuba, Science, and Shark conservation programs and led on-the-water by scientists from University of Havana’s Center for Marine Research (CIM) and from the Mote Marine Laboratory in Florida; with participation by a scientist from Mexico’s College of the Southern Frontier (ECOSUR).

Results from this expedition will be highlighted in a 3 part blog series. Today’s post focuses on sharing science in data-limited shark fisheries.  It will be followed by stories about the partnership of fishermen and scientists and baseline data.  Join the journey here and follow along this week! Read More »

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