Selected tags: research

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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Sound Fisheries Management is No Fluke

 

Summer Flounder

photo credit: Michael McDonough via photopin cc

Recently a US Senate subcommittee held a hearing entitled “Developments and Opportunities in US Fisheries Management,” with testimony by federal, regional and state officials that focused on the need for collaboration in fisheries management and decision-making based on sound science.  More than two and a half hours of testimony and questioning by Senators focused on the role of science and the Magnuson Stevens Act in effective management of our nation’s fisheries, especially summer flounder or “fluke.” 

New York and New Jersey have long been embroiled in an interstate conflict over what New York Senator Chuck Schumer has called “our decades long fight to bring fairness, flexibility, and accountability into the management of summer flounder.”  To that point, a reoccurring theme in the testimony was that effective fisheries management requires high quality data and regular stock assessments.  This notion was also echoed at a House Natural Resources Committee hearing a week earlier.

What is clear in the early hours of debating MSA’s reauthorization is that stakeholders across the board are focused on a common top priority – simply, good science is fundamental to good management.  This reality is at the core of the interstate summer flounder battle, with NY arguing that the use of outdated data has led to an unequal allocation of fish between states. Read More »

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Fisheries Catch Data: A Tale of Two Approaches

photo credit: wanderlasss via photopin cc

To paraphrase F. Scott Fitzgerald, the test of a first rate intelligence is the ability to entertain two opposed ideas at the same time and still function.

Two views on the importance of catch data for estimating the abundance of fish populations are portrayed as opposing ideas in recent articles, but both of the “antagonists” display first rate intelligence by coming to the same conclusion: catch data send an important signal about the status of a fish population, but other kinds of information must be applied to avoid being confounded by all the other things that affect catch and come to a reasonably accurate estimate of fish abundance.

This argument over methodology may seem arcane, but the stakes are high: estimates of the status of global fisheries based on catch data, which are available for most fisheries, suggest they are in pretty poor shape, because catches have declined sharply in many of them.  But when one looks at stocks that have been assessed by scientists who take into account fishery-independent measures of abundance, the situation looks far less dire, because decreases in catch can result not only from decreased abundance, but also from changes in markets, environmental conditions, regulations, and even in what fish are called – Hilborn and Branch point out that in the 50’s, all sharks were put into only 7 categories, but now there are 36 groups for which catch data are collected, so that reduced catch in some of the earlier categories may merely be the result of re-classification. Read More »

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Fishery Research Accelerated by Oil Spill

httpv://www.youtube.com/watch?v=Oz0VZEjXztM 

EDF staff recently had the privilege to participate in a university-fishing industry research expedition conducted by graduate students from the University of West Florida, on Captain Gary Jarvis’ boat, the Back Down 2, in Destin, Florida.

Underwater surveys explored reef fish populations and their habitat. They were originally scheduled throughout summer, but have been sped-up to serve as baseline samples in case the oil spill spreads as far as Alabama and Florida. These may be particularly important given this weekend's news that large plumes of oil have been found at deep depths offshore.

The researchers have several objectives including exploring fish population structure and habitat and examining fish tissue and stomach contents. Their methods include use of a Remotely Operated Vehicle to view the underwater environment to identify, measure and count fish. The researchers were also studying how varyingly skilled anglers catch fish on different sizes of circle hooks.

Cooperative research has many benefits

Cooperative research trips like this one are good for science and fishing businesses. UWF researchers chartered boats out of ports in Alabama and Pensacola in the week prior, and have scheduled several additional trips with Captain Jarvis and others.  The research rapidly provides much needed data on the health of fish stocks, and provides an opportunity to help charter businesses struggling with lost business from the oil spill.

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