Category Archives: Cape Eleuthera Institute

Aquaculture, Cape Eleuthera Institute, CEI

More Baby Fish Have Arrived!

On Friday, January 27th half a million eggs arrived from Miami, Florida! They were placed in an incubation tank, where they hatched early Saturday morning. To the naked eye they looked like pieces of rosemary floating in the water. But under the microscope you could see the egg sack that was encased around the head and the tail was sticking out. The bottom of the tank was siphoned in order to get rid of the unhatched eggs and dead larvae. This is very important because if they were left in the tank bacteria can grow, which can kill the larvae. After determining how many larvae were alive, they were then transferred into six larval rearing tanks. They will obtain their food from their egg sack for three days. Cobia develop after they hatch, which means their mouths are very small and in turn can only eat rotifers for the first couple of weeks. They will eat enriched rotifers for about three weeks and then move onto eating artemia for another 45 days. Once they start growing more we will be able to wean them onto dry food and then eventually bring them out to the offshore cage that is fitted with shark resistant netting that was donated by DSM Dyneema!

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Cape Eleuthera Institute

Lionfish Research at CEI Adjusts Its Focus

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The Lionfish Research and Education Program (LREP) at CEI has already had an exciting start to 2012! Last year, research efforts were focused on a lionfish removal study to document changes in native species at reefs where lionfish densities were regularly controlled. This year officially marks the end of that study…now it’s time to answer new questions! LREP research will focus on addressing questions associated with lionfish recolonization. Understanding rates as well as biological and physical factors that influence where lionfish recolonize can help support best management strategies for the Bahamas and the surround invaded region. Continue reading →

Cape Eleuthera Institute, CEI

Update from CEI’s Flats Ecology Research

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So everyone has heard of climate change/global warming- increased anthropogenic CO2 in the Earth’s atmosphere shifts annual global climate, which then leads to other catastrophic events within the Earth’s ecosphere. An increase in oceanic temperature and acidity is among the most pressing and readily apparent effects of climate change. Past research has shown fish of tropical reefs to be particularly sensitive to changes in ocean temperature and pH. In the flats department, we aim to determine whether common teleost occupants of tropical mangroves exhibit a similar sensitivity to such changes. Using bonefish (Albula spp.), checkered puffers (Sphoeroides tetudineus), juvenile yellowfin mojarra (Gerres cinereus), and juvenile yellowtail snapper (Ocyurus chrysurus), we aim to determine the Critical maximum and minimum temperature and pH at which each species looses equilibrium (“goes belly up”). Continue reading →

Aquaculture, Cape Eleuthera Institute

The Fish Have Arrived!

I repeat…THE FISH HAVE ARRIVED!

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After much anticipation, we got the call! The cobia fingerlings had a long journey from The University of Miami’s experimental fish hatchery at RSMAS to the Cape Eleuthera Institute. We spent the day preparing the tanks for the fingerlings…scrub, rinse, soak, drain, scrub, rinse, fill! Marie and Josh took the truck to pick up the 13 boxes from the Rock Sound Airport Friday afternoon. It was like Christmas morning when the truck finally pulled up. We put the bags in the tank to acclimate the cobia to their new home. After, we opened each bag and carefully let them free! The fingerlings will be used in an upcoming feed trial. Continue reading →

Cape Eleuthera Institute, CEI

The SeaStation Has a Brand New Net!

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After a year and a half of trial and error CEI’s aquaculture cage has been refitted with shark resistant netting! Last Wednesday the aquaculture team, along with help from the majority of CEI, successfully installed this newly developed netting. Sharks biting holes in the netting has been the greatest hurdle that the aquaculture program has come across while trying to demonstrate the feasibility of aquaculture in The Bahamas. Previous growouts have failed due to escapements through holes that sharks had bit in the netting. The new netting was donated by the life materials company, DSM and the net manufacturing company, Net Systems. This is the first time this type of netting has ever been used on a SeaStation and the first test run will begin in February when 5,000 cobia will be stocked in the offshore pen. This will be the third time fish have been stocked in the offshore cage and fingers crossed, the first time the netting will be shark resistant.

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Cape Eleuthera Institute, CEI

CEI Enters Grant Proposal to Solution Search

Over the past few weeks, Dave Philipp, Julie Claussen, Peter Zdrojewski, Skylar Miller, and Liane Nowell, scientists and faculty members from CEI and Island School have been working on a grant proposal to enter in RarePlanet’s Solution Search, which rewards innovative conservation successes in communities where the need is greatest. This specific Solution Search is focused projects that address the issue of the depletion of global fish stocks. With all the great work CEI is doing with dwindling fish stocks, we believe we have a good chance of winning the first place project grant of $20,000, or one of the other great honors up for grabs. You can read more about Solution Search here, and the grant our team put together here. Wish us luck!

Cape Eleuthera Institute, research

Weekly Lionfish Research Update

by Lincoln Zweig and John Morris

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This was a very successful week for the lionfish research team. On Tuesday we had two great reading note presentations and started to work on our first group project. By our next class on Friday we had a PowerPoint set up that described our research group’s purpose. After a practice presentation we went out into the field. Each buddy team finished three transects at the first dive spot that went very well. However, the reef was quite flat so we didn’t see too many lionfish or grouper. A bolt of lightening then interrupted our dive, and we headed back to The Island School. Apparently the weather gods don’t like it when we dive on Friday. Saturday was an almost flawless day in the field. We got to both of our desired dive sites and had very well set up transects at each one. We saw more lionfish and grouper on Saturday because the reefs we visited had more ledges for lionfish to use as shelter. As a group we are definitely ready and excited for our presentation on Tuesday!

Cape Eleuthera Institute, research, Uncategorized

F’11 First Flats Research Update

The Fall 2011 Flats Research program kicked off their first class with Sam Saccomanno, Annie Blanc, Kate Maroni, Tori Suslovitch, Brendan McDonnell, Franklin Rodriguez, and our research advisors, Justin, Liane, and Ally. The focus of our research group is to study and raise awareness about mangrove conservation.
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What are flats and mangroves? Flats are the area between land and sea where there is a broad surface level but shallow depth. Flats can be shallower than just a few centimeters and as deep as 2 meters. Mangroves are a plant species that thrive in the flats ecosystem and are very important on both an ecological and economic level. They are important nursery grounds and breeding sites for birds, fish, crustaceans, shellfish, reptiles and mammals, are renewable source of wood, accumulation sites for sediment, contaminants, carbon and nutrients, and offer protection against coastal erosion. Continue reading →

Aquaculture, Cape Eleuthera Institute, research

Fall 2011 First Aquaculture Research Project Update!

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Aquaculture Fall 2011 is off to a great start! Six enthusiastic students have embarked on a journey through the wild scientific studies of Aquaculture. Already, we have trod through mangroves, swum through strong currents, and collected 200 water samples in the past week. We have been testing pH level, levels of nitrogen and phosphorous, salinity, dissolved oxygen, and temperature of the water. The water sample data we collected is being used to see if the mangroves surrounding the school and institute filter the water efficiently. The water is collected outside of the CEI campus and is then used in the CEI labs to raise fish. After the water goes through CEI, it goes through the mangroves and back out into the ocean. Hopefully our water sample research will show that the mangroves do effectively filter the water. Later on in the semester, we will dive down ninety feet to our underwater Aquaculture cage in order to help inform ourselves on ways to improve the problems Aquaculture has faced. We will keep you updated on our progress throughout the rest of the semester!