Request for Finfish Larviculture and Live Foods Session Presentation Abstracts

Request for Papers

Finfish Larviculture and Live Foods Session Presentation Abstracts
Aquaculture America Conference 2018
February 19 -22nd Las Vegas, Nevada

Request for Finfish Larviculture and Live Foods Session Presentation Abstracts for the Aquaculture America Conference 2018, February 19 -22nd Las Vegas, Nevada.

WAS Abstract Submission Portal is still open for abstract submission - click here.

Please consider submitting an abstract regarding topics pertaining to Finfish Larviculture and Live Foods Session abstract to the World Aquaculture Society website as soon as possible. If you have already submitted an abstract for the general session that you would like to have in the Larviculture and Live Foods Session, please forward the abstract to the session chair for inclusion in the session. Technologies and methods for production of live food organisms for larviculture, or technologies and methods to culture larvae of finfish species new to culture or to improve fertilization, egg incubation, or larval production of currently cultured species of finfish, among other pertinent subjects will be addressed during this session.

Please contact session Chair Todd Sink ( for more information. (more…)

A Big Step towards Reducing Strep in Farm- Raised Tilapia

The United States annually imports nearly $1 billion worth of tilapia while producing another 30 million pounds ourselves. This makes tilapia the U.S.'s fourth most consumed fish. Worldwide, farmed-raised tilapia is nearly an $8 billion yearly industry. Those same tilapia farmers lose about $1 billion annually due to streptococcosis. The main culprits are two bacteria, Streptococcus agalactiae and S. iniae.

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    3rd Conference on Mitigation Strategies for Infectious Diseases – Oct 24-26, 2017

3rd Conference on Mitigation Strategies for Infectious Diseases – Oct 24-26, 2017

Cali, Colombia - October 24-26, 2017 - Cali Marriott Hotel

Pathogens continue to threaten global health, causing millions of deaths yearly and producing significant economic loss. Emerging infections present in many forms, as seasonal influenza, which kills millions of people every year, to the violently fatal hemorrhagic fevers caused by the Ebola virus, which has a 90% case fatality rate in humans. The contagiousness virulence of many microbes has raised concerns about the possibility of their intentional use to harm humans, livestock and crops. Because of the relevance of these diseases many which are poorly known, this event seeks to congregate researchers in the forefront of innovation for pathogen discovery and the development of countermeasures against them.

Chinese Tilapia Processing Facilities

From Jim Franklin, Secretary of the Americas Tilapia Alliance:

I recently read the article on Chinese Tilapia processing facilities on the Undercurrent News website.  It describes recent market conditions and the processors reaction to high farm gate pricing while retailers are demanding lower prices.  Issues with commodities such as frozen tilapia produced in China for the export market, continue to be opportunities for domestic tilapia suppliers to compete based on quality conscientious consumers and locally grown trends.  I reached out to the author, Louis Harkell, to discuss the article and he submitted a comment for our website.  He is attending the  Seafood Expo Asia in Hong Kong and hopes to have additional information in the future for a follow-up to this article.

Chinese tilapia processors shutter plants in Guangxi under tough trading conditions

Louis Harkell replied as follows, "I spoke with a source based in China who has lots of experience in the sector who told me about the problems with firms in the region of Guangxi. I didn't get any response from the two companies I mentioned in the article, so unfortunately I could not verify the information he told me with other sources. However, what he told me makes sense when one looks at farmgate prices of tilapia - which have been going up -- plus the drop in average prices of China's tilapia exports as the US decreases its imports, and more tilapia is sold to other countries such as Mexico, Iran and Russia, who demand lower prices. Also international competition in the form of Vietnamese pangasius exports has taken its toll. Also, as I mentioned in the story, Baiyang has been suffering losses at its Guangxi-based plants - that is info available in public financial accounts published by the firm. 
Interesting to know is [...]

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Requests for proposals for the Aquaculture America 2018 Conference

The alliance will host a session on aquaculture dedicated to tilapia, so please submit your presentations ASAP.

Alliance member opens new Aquafeed mill

Blue Ridge Aquaculture proudly announces the official opening of Blue Ridge Aquafeeds, an innovative feed mill that will supply the company’s internal feed demand as well as the growing aquaculture market.

Tilapia Lake Virus Conference Call – Friday July 28

The National Aquaculture Association (NAA) invites you to participate in an information-sharing conference call between U.S. tilapia growers (fry, fingerlings or broodstock), live importers, and live shippers of market-ready live fish or fingerlings and USDA APHIS Veterinary Services Aquaculture Program.

The toll-free conference call will occur on Friday, July 28, 2017, at 3:00 PM Eastern. There is no registration for the call and the call will not be recorded.

The call-in information is: Dial-in phone number: 712-775-7031. Access Code: 664-518-980.

The topic of this call will be Tilapia Lake Virus. Tilapia Lake Virus (TiLV) is an emerging disease that has been reported in at least eight different countries around the world where tilapia are produced. This disease appears to have the greatest impact on fingerlings, with losses as high as 90% and appears to be spread by animal movement. To date, there are no reported cases of TiLV in the United States.

Because of the world-wide threat of this disease and the significant impact on tilapia production, it is anticipated that this disease will be added to the list of internationally reportable diseases by the World Organization for Animal Health (OIE; see: in the near future. This could mean that exports of live tilapia from the U.S. will require export health certification that states animals are free of this disease. NAA and APHIS are committed to working together to protect U.S. aquaculture and maintaining secure markets for aquatic animals and their products.

In preparation for the call, APHIS has provided three TiLV related questions for you to consider prior to the call.The questions are:

Do you feel there is a need for our own import health requirements of live tilapia entering the United States from countries known to [...]

NAA Action Alert: Tilapia Lake Virus

Tilapia Lake Virus

Tilapia Lake Virus (TiLV) is a highly pathogenic virus that poses a significant threat to cultured and wild stocks of tilapia.  Little is know about effective control methods.  Infected fish often show loss of appetite, slow movement, dermal lesions and ulcers, ocular abnormalities, and opacity of the lens (i.e., cloudy eyes).  The disease has been confirmed in some countries in Africa, Asia and Latin Americal.  The impact on infected tilapia populations is significant with desease-associated mortality as high as 90%.

Tilapia Lake Virus (TiLV) – What You Need to Know

En español

Tilapia skin used to heal Brazilian burn victims

Click Here to read this important article!

What will it take to make Tilapia great again?

Click Here to read this important article...

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    Massive aquaculture shut-down in central China as government gets tough on pollution

Massive aquaculture shut-down in central China as government gets tough on pollution

CLICK HERE to read this important article from


Injurious Wildlife Petition Summary and Action Plan

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    Salmon: A Case Study in the Development and Approval of Transgenic Aquatic Organisms

Salmon: A Case Study in the Development and Approval of Transgenic Aquatic Organisms


One approach to the genetic improvement of aquatic organisms that has emerged as a discipline in its own right over the past two decades is transgenesis, the transfer of foreign genes into new hosts.

Transgenic fishes (or molluscs or crustaceans) can be defined as possessing within their chromosomal DNA, either directly or through inheritance, genetic constructs which have artificial origins. The key word for researchers, producers and even consumers here is within the chromosomal DNA: introduced constructs are incorporated into the target organism in such a way as to be expressed and passed along to subsequent generations.

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    Tilapia vs Other Proteins – Not the Aquatic Chicken Just Yet.

Tilapia vs Other Proteins – Not the Aquatic Chicken Just Yet.


The fresh tilapia fillet market in North America has not grown in over 10 years; it is at year after year at around 1 million pounds per week. Price is not the only challenge holding back fresh fillet volume in North

America; I believe there are other factors at play. Globally, farmed tilapia is only 3% of farmed chicken production. A challenge for new Brazilian, Vietnamese and Mexican producers targeting the US tilapia fillet market. First you have to realize that other more established tilapia producers in China, Costa Rica, Indonesia, Honduras, Ecuador and Colombia who have a head start in the market must be considered. In the fresh fillet market the growth of new tilapia producers was only because another tilapia producer, for one reason or another, left the market. For example Ecuador, once the biggest producer left tilapia, to go after more profits in shrimp. This greatly helped emerging Honduran and Mexican fresh fillets. They simply replaced the Ecuadorian and some of the Costa Rican supply, however - no growth - the same gross amount of 1 million pounds per week remains.

The other challenge for tilapia fillet sales are low prices for Asian catfish and frozen tilapia from China, pushing down the overall tilapia prices for whole, frozen and fresh tilapia. Even though it’s frozen, Chinese tilapia fillets and whole fish still set a benchmark price for around $2/lb.,for fillets., less than$1.00/ lb. for whole, with non-Chinese (Indonesian, Thai, Mexican) frozen fillets selling closer to $3/lb. But non-Chinese frozen fillets compete in less than 10% of the frozen fillet market.

There is certainly downward price pressure from the Asian cat fish and Chinese frozen fillet volume impacting the fresh fillets. In the [...]

South Florida live – Tilapia Producers Burst on the Scene


For U.S. tilapia producers, there is one big question regarding the live tilapia market in this country.   This important question is: Will history repeat itself as dramatically as it did in the 1980s when U.S. fillet producers lost their businesses to lower tech, lower cost producers from Central and South America? Once again there is a “north vs. south” competitive dynamic taking place in eastern U.S. live tilapia markets. Although many of the so-called southern producers (in Florida) may speak Spanish, their farms and the farmers are in the U.S.A. The U.S. live market is witnessing an explosion of outdoor, lower tech tilapia production taking place on new South Florida farms.

Within the last two years, at least 10 to 12 new farms have come on line in South Florida with an annual estimated production of 4 to 5 million pounds (lb.). This is “new” lbs. per year, and it is targeting northern markets. This market is estimated at 7 to 8 million lbs., principally in New York City and Toronto where the Asian consumer lives. This market and supply has been steady for at least the last 5 years. It has been supplied by 10 to 12 indoor farms up north, ranging from 250,000 lbs. to 3 million lbs. / year. 

An American Tilapia Survivor Speaks Out


It gives me great satisfaction to be writing the Tilapia column for the resurrected Aquaculture Magazine. This magazine and I have a connection going back to when I started my career in the early 1980’s. I remember waiting anxiously to receive the magazine, and reading it cover to cover. It provided real stories of other commercial activities starting in the budding aquaculture industry. To be American and surviving in commercial tilapia farming through the 1980’s was a challenge for anyone raising a human family. It was continuous musical chairs of jobs and experiences, making mistakes and waiting for a market to bloom. By 1991, I felt like the old man in the sea of tilapia. I wrote a couple of articles for the magazine, the first (Nov/Dec 1991, Vol 17, Number 6), titled An American Tilapia Survivor Speaks Out, was about my early journey in tilapia farming from 1978 - 1991.

Be Careful What You Wish For – Social Media


With the rise of the social media phenomenon and the growth of blogs, websites and chat rooms, anybody with an idea, a cause and time can gain an audience to express a point of view.

I’m even making use of this right now in this article. This can be a good thing, to have a vehicle allowing these freedoms. However, along with these expressions of free speech, authors soon realize that it’s the negative that sells and the sensationalist headline-grabbing words that really attract attention.

With regard to tilapia, we have noticed more and more attacks from health, nutrition, cooking, seafood and environmental blogs with stories titled “Eating Tilapia Worse than Eating Bacon and Donuts,” “Farmed Tilapia Good for the Environment, Bad for You,” “Tilapia Eat Poop,” “Tilapia Raised on Feces Hits U.S. Tables” and “Tilapia - The Geneti- cally Modied Fish.” It goes on and on, simply Google the word tilapia and a high percentage of the hits are sensationally titled and negative. But does this really matter?

EPA Accused of Muzzling Independant Advisors


WASHINGTON (AP) - Journalist and scientific organizations accused the Environmental Protection Agency on Tuesday of attempting to muzzle its independent scientific advisers by directing them to funnel all outside requests for information through agency officials.

In a letter Tuesday, groups representing journalists and scientists urged the EPA to allow advisory board members to talk directly to news reporters, Congress and other outside groups without first asking for permission from EPA officials. An April memo from the EPA's chief of staff said that "unsolicited contacts" need to be "appropriately managed" and that committee members should refrain from directly responding to requests about committees' efforts to advise the agency.
The scientific advisory board's office had asked the EPA to clarify the communications policy for board members, who are government employees.
"The new policy only reinforces any perception that the agency prioritizes message control over the ability of scientists who advise the agency to share their expertise with the public," the groups wrote.
The EPA relies on independent advisory boards to weigh complex scientific information and to advise the agency on policy, such as setting new standards for air pollutants. Recently, Republicans in Congress have been critical of the scientific advisory board overseeing the review of the ground-level ozone standard, saying it failed to evaluate the consequences of recommending a tougher limit.
The chair of that panel, H. Christopher Frey, said in an interview with the Associated Press Tuesday in which he stressed he was offering his personal opinion, that he found the tone of the EPA memo to be unnecessary.
Frey, a distinguished university professor in North Carolina State University's environmental engineering department, said that many of the scientists that serve on the committees are national and internationally-renowned experts and [...]

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    Glenda wipeout of fishpens to trigger price hikes of bangus, tilapia – BFAR

Glenda wipeout of fishpens to trigger price hikes of bangus, tilapia – BFAR

Consumers must take advantage of the cheap bangus and tilapia while they last as prices are expected to increase in the coming days.

In an interview aired on GMA News “24 Oras” Wednesday, Bureau of Fisheries and Aquatic Resources (BFAR) director Asis Perez said prices of bangus and tilapia were projected to go up by as much as P30 per kilo due to the expected lower supply caused by the destruction of most fishpens in Laguna De Bay and Taal Lake after the onslaught of Typhoon Glenda.

“Eighty percent of those structures you can no longer find, and the remaining 20 percent of the structures nandun pa pero wala nang laman,” Perez said.

Asked about how much fish remains in the Laguna De Bay and Taal Lake fishpens, Perez answered: “Hundred percent walang natira sa fishpen.”

Peres said even the 10-hectare bangus and tilapia farms in Bataan, Bulacan and Pampanga were destroyed by the typhoon.

Perez said the damage could result in limited supply which would lead to higher prices. Perez said that it usually took four to seven months to raise bangus and tilapia before they can be harvested.

“I'm projecting a relative increase in price...Hindi naman dodoble ang price, siguro mga P20 to P30 increase per kilo,” Perez said.

Fish cage owners in Laguna De Bay are set to meet with the officials of BFAR on Thursday to discuss how to address the looming supply shortage. Majority of the supply of bangus and tilapia in Metro Manila comes from Laguna De Bay.

Just recently, bangus from Laguna De Bay were washed to the Pasig River to the delight of nearby residents.  This happened after Typhoon Glenda destroyed the fishpens in the lake.

According to the “24 Oras” report, the supply of [...]

Cornell Annual Short Course June 23-27, 2014

FischMagazin Interview with Dr. Michael Timmons

The follow interview was conducted by Imke Zimmermann (Press Relations for German Fish International Trade Show, Bremen Germany-February 9-11, 2014, which was then published in the German expert magazine on our topic, FischMagazin, Contact Info for Ms. Zimmermann


1.    With a RAS you can earn a small fortune – if you beforehand invest a large one, people say half-jokingly. Indeed we’ve seen lots of projects go bust. You, Prof. Timmons, even pledged a mortgage on your house ((if I understood that correctly from the cv in your book??)) to get the money to co-finance a RAS for Tilapia. Apparently you were optimistic … So please tell us: Which conditions must be fulfilled for a successful project?

In June of 1996, four individuals created Fingerlakes Aquaculture, LLC, including Dr. Michael B. Timmons of Cornell University, who mortgaged his own house to get the initial capitalization.  After a rocky startup, Fingerlakes Aquaculture stayed in business for 12 years and produced over 3,000 tonnes of tilapia. By those statistics, Michael can claim a success.  This success or at least FLA’s longevity at being in business for such a long time can be attributed to several factors:

Implemented in a series of stages (university prototype, small 100 tonne farm, followed by larger 500 tonne farm)
Large scale operations, economy of scale and market
Trained and motivated workforce
Improved technology
Adequate water
Electrical rates below typical market prices ($0.04/kwh)
Targeted marketing approach

Probably the most important of these was a phased production program, i.e., a ramp up over time. Many business plans start with some large scale operation, which is usually necessary to show a positive cash flow. Unfortunately, almost always, these operations, if funded, are unsuccessful. It is extremely difficult to achieve large scale success without having first built this capacity [...]

RAS Technology Workshop

July 31 - August 1, 2014

The Recirculating Aquaculture Systems (RAS) Technology Workshop is a 2-day workshop July 31-August 1, that is designed for a broad audience. A few of the topics covered include developing an appropriate design for your aquaculture application, the management of recirculating systems, waste management issues and economic considerations. We will seek to provide non-biased, research-based information to those that are interested in, or those using recirculating aquaculture fish production systems. The information presented comes either from the first-hand research results and experiences of the presenters or those of collaborators or colleagues around the world.

If you would like more information regarding the workshop, please email: or visit:

S. Florida Tilapia Producers

South Florida live – Tilapia Producers Burst on the Scene

For U.S. tilapia producers, there is one big question regarding the live tilapia market in this country. This important question is: Will history repeat itself as dramatically as it did in the 1980s when U.S. fillet producers lost their businesses to lower tech, lower cost producers from Central and South America?

Click HERE to download the Aquaculture Magazine article by Mike Picchietti

Can Eating Seafood Save Your Life?

Farmed Seafood and Canadian Health: How Higher Seafood Consumption Can Save Lives
Click the link below to see the report prepared for The Canadian Aquaculture Industry Alliance
November 2013