Aquaculture Scoop December 2012 Issue

7/28/2019 Aquaculture Scoop December 2012 Issue

1/16

Issue 1 December 2012

ISSUE1

ofAquacultureScoop

quarterlymagazine

IN THIS ISSUE...Is chronic exposure to Nitrate

Nitrogen a hidden danger

to Trout in RAS?

OGSI leads the way in Onsite

Oxygen Technology for Aquaculture

Improve your business and keep your

customers koi and other fsh

alive this winter?

The commercial use of

TAERATION Air-Injection

technology


2/16


3/16

Editorial

Welcome to the rst issue of Aquaculture Scoop, a new online supplement to complement our AquacultureDirectory for the aquaculture industry. Aquaculture Scoop will be publishing four issues per year focusing on

technology.

We start our rst issue with a focus on recirculation technology featuring articles from industry professionals

covering a variety of topics from Nitrogen Nitrate being a hidden danger to trout, Oxygen in the water, heater

technology and air injection technology.

AQUACULTURE 2013 is the place to learn about the latest in aquaculture, see the newest technology in the trade

show and have a great time in the many fantastic restaurants, and entertainment sites in Nashville a city of

culture and history, of haute cuisine, natural beauty and pure Southern charm! Being held February 21-25, its a

show that shouldnt be missed. Keep up to date with other industry events by visiting

http://aquaculturedirectory.co.uk/aquaculture-events-2/.

If you have a topic that you would like to see covered, why not get in touch with us.

NISA Media Ltd

14 Clarke Way

Cheltenham

GL50 4AX

UK

Editorial Manager

Nicky BarnesTel: +44 117 2306494

Email: [email protected]

International Marketing Manager

Sabby Major

Tel: +44 117 2306493


News Editor

Martin Little


Contents

Is chronic exposure to Nitrate Nitrogen ahidden danger to Trout in RAS ...........................................................................................................3

OGSI leads the way in Onsite

Oxygen Technology for Aquaculture ..............................................................................5

Improve your business and keep your

customers koi and other sh alive this winter ............................................................7

TAERATION Air-Injection technology in

commercial super intensive closedrecirculating aquaculture systems ................................................................................9

Aquaculture Events 2013 ........................................................................................................12


4/16

Modest levels of nitrate nitrogen in the 75 to 100 mg/L range

may be more harmful to aquaculture-raised rainbow trout than

producers realize. A team of scientists at the Conservation Funds

Freshwater Institute led by John Davidson documented deformities

and signicant behavioral changes in rainbow trout (Oncorhynchus

mykiss) raised in recirculating aquaculture systems (RAS) with

nitrate nitrogen concentrations at levels less than one-tenth the

recommended maximum nitrate nitrogen level of 1,000 mg/L. They

believe the changes were spurred by chronic exposure to nitrate

nitrogen.

If you see a problem in your system, dont disregard nitrate nitrogen

as a possible cause, warns Davidson.

Davidson and his colleagues almost did exactly that. They had

designed a study comparing recirculating systems with various rates

of water exchange. Where hydraulic retention time was longer and

the feed loading rate was high, nitrate nitrogen and other water

quality parameters grew more concentrated and the researchers

observed sh swimming faster. Many of the sh swam on their

sides, an unusual behavior possibly linked to abnormalities in their

swim bladders or skeletal deformities. Fish in near-zero exchange

recirculation systems also tended to gasp or yawn at the surface

of the water, and had higher rates of skeletal deformities and

mortality than sh in more frequently-refreshed tanks.

The biggest surprise to us as we were trying to determine why

the sh were behaving the way they were was the possibility of a

connection to nitrate nitrogen, says Davidson. Because of the

literature we had been used to reading, we didnt even consider

nitrate nitrogen as a parameter of concern until I plotted it out and

saw a very close correlation.

Davidson and his team published their ndings in Aquacultural

Engineering last autumn.

Health and Welfare

Davidson notes that the conventional limit for nitrate nitrogen in

aquaculture tank water for rainbow trout is based on an LC50

value, a concentration that kills half the population. But sublethal

concentrations may be quietly stealing prots and creating

unhealthy conditions.

If sh are stressed based on a water quality parameter thats

present, that could impact performance in other ways, like feed

conversion or growth rate, he says.

In tanks with low water exchange rates, high feed loading rates and

high nitrate nitrogen concentrations, trout swam as much as

twice as fast

More information contact:

YSI

1725 Brannum Lane

Yellow Springs

OH 45387, USA

Tel: +1 937 7677241 x521

Web: ww.ysi.com

Aquaculture Scoop

High-exchange RAS with few side swimming trout.

Low-exchange RAS with increased number of side swimming trout.


5/16

as their counterparts in high-exchange recirculating systems as

fast as 49 cm/sec, well above the speed of the tanks current.

Davidson suspects that sustained fast swimming can lead to higher

oxygen demand, lactic acid buildup in muscle tissue, exhaustion, and

even deformities that contribute to side-swimming behavior.

As soon as you start seeing behavioral changes, youve got to start

thinking about sh welfare, he adds. The aquaculture industry is

working hard to stay ahead of activist groups who are beginning

to set their sights on sh production after attacks on poultry, hog,dairy and beef production, Davidson notes understanding the

appropriate levels of nitrate nitrogen and other parameters will be a

vital step in maintaining sh welfare standards that can withstand

outside scrutiny.

Monitoring Nitrate Nitrogen

Nitrate nitrogen levels can build up in RAS systems rapidly as sh

excrete ammonia nitrogen and bioltration systems convert the

ammonia nitrogen to nitrate and then to nitrate nitrogen. Davidson

and his team monitored nitrate nitrogen levels carefully using two

standard lab testing protocols, as well as with the YSI Professional

Plus handheld, multiparameter meter. He says instant readings from

the handheld meter will be important for staying on top of nitrate

nitrogen levels in commercial settings.

Because nitrate nitrogen appears to be a much more critical water

quality parameter than once thought, I think the Pro Plus with the

nitrate probe could be an important monitoring tool for aquaculture

system managers, particularly for those who operate RAS at

low to near-zero water exchange rates at which nitrate nitrogen

accumulates to relatively high levels, he says. The Pro Plus was

easy to use and calibration of the nitrate probe was simple and

straightforward.

Grab sampling and conducting a lab nitrate nitrogen analysis can

take a half-hour or more in his labs six-tank system, Davidson adds.

Depending on how many tanks you have to do, that adds up, he

says. With the Pro Plus, you can turn the meter on, do a quick

calibration, and drop the probe in the tank water. Thats a pretty big

time savings.

In addition to its nitrate nitrogen measuring capabilities, the Pro Plus

can be equipped with probes for a wide variety of other key water

quality parameters, including dissolved oxygen (DO), conductivity,

specic conductance, salinity, resistivity, total dissolved solids

(TDS), oxidation reduction potential (ORP), ammonium, chloride and

temperature. With YSIs Quatro cable, four probes can be used at

once for DO, temperature, conductivity/salinity, and any two ISEs -

pH, ORP, ammonium, nitrate or chloride.

Davidson found that the Pro Plus nitrate nitrogen readings were quite

close to lab test values no more than a 10 percent difference.

Based on what we saw, it was within the appropriate range to make

an educated decision on whether to reduce nitrate nitrogen levels in

an aquaculture tank, he says.

Aquaculture Scoop 4


6/16

Oxygen Generating Systems Intl [OGSI] is the leading manufacturer of onsite

oxygen generators. Using Pressure Swing Adsorption (PSA) technology, OGSI

offers a complete line of oxygen generators and oxygen cylinder lling plants

(CFPs). They currently have oxygen plants in over 70 countries worldwide,

serving many diverse markets including: sh farming (aquaculture) and ozone

water treatment. The OGSI Aquaculture System is specically designed for

aquaculture applications and is efcient and cost-effective. It enables sh

farms to dissolve oxygen in any size tank. Farms are able to increase stocking

densities. The sh are also healthier and have better taste when raised in

an oxygen rich environment. The investment in an oxygen system is typically

recovered within two years meaning that the return on investment (ROI) is

greater than 50 percent per year.

How it WorksA side stream of water from the raceway, pond or tank is pumped at elevated

pressure through a venturi nozzle, where oxygen is injected. The water becomes

saturated with oxygen and is then distributed through high velocity mixing

nozzles along the bottom surface of the raceway, pond or tank. Oxygen ow

rates can either be manually regulated or automatically controlled using a

dissolved oxygen (DO) analyzer and probe. By closing the loop with a signal

that is fed back from the DO meter, the oxygen system can be turned on and off

automatically, as needed.

Systems Available

The OG-15 Oxygen Generator is a small and convenient turnkey oxygen

generating system. It is safe, dependable and easy to run. Its maintenance-free

operation provides a quick way to meet your immediate oxygen needs. Larger

models are available (Oxygen Generators) to suit the requirements of larger

sh and hatcheries and ponds. The larger models range from 25 SCFH to 5000

SCFH (5tpd).

OGSI has a great deal of experience supplying oxygen to aquaculture facilities

that raise a variety of sh species, among them trout, striped bass, tilapia and

shrimp. The application engineers at OGSI can assess your facilitys operating

needs and design an oxygen system to meet your specic needs.

If oxygen is needed in cylinders for use in transportation or remote handling

cylinder lling plants are available. These are systems that will immediately

eliminate the high cost of delivered oxygen. No more spending valuable time

changing and returning heavy oxygen cylinders. The CFPs can automatically

rell your oxygen cylinders for 24/7 availability and relieve you of yourdependence on delivered oxygen. OGSI offers complete CFPs, with capacities

up to 500 cylinders per day. You can reduce your live haul expenses with these

systems by lling your own cylinders.

Benets of Installing an OGSI Oxygen Generator or Cylinder Filling Plant:

- Increase stock density by maintaining a higher level of Dissolved Oxygen (DO)

- Produce larger quantities of high quality sh

- Increase reproduction rates

- Ensure the avor of sh by providing a clean environment

- Prevent ice from forming during winter months

- Increase the oxygen content over a typical air-fed aerating system

- Ensure uniform DO levels throughout tanks and ponds

- Provide feed gas to an existing ozone generator for disinfection


Oxygen Generating Systems Intl

Division of Audubon Machinery

814 Wurlitzer DriveNorth Tonawanda,

NY 14120, USA

Tel: +1 716 5645165

Web: www.ogsi.com

Aquaculture Scoo
http://www.ogsi.com/oxygengeneratorshttp://www.ogsi.com/oxygengenerators


7/16

AQUA NOR 2013InternatIOnaL eXHIBItIOn, 13- 16 august, trOndHeIm, nOrWaY

AQUA NOR - the most important internationalvenue or the aquaculture industry.

FOCUS ON THE FUTURE!Get to know the latest and most advanced aquaculture technology.Meet practitioners rom over 50 countries and expand your network.

International conerences and seminars beore and during Aqua Norwill ocus on new research and opportunities in the aquacultureindustry.

Exhibitor, visitor or conerence participant?www.nor-fshing.no

The Nor-Fishing FoundationTl +47 73 56 86 40, Fax +47 73 56 86 41, [email protected]

Aquaculture Scoop 6

DanAqua is the exhibition of the future for the fish farming sector.

It offers producers and other suppliers to the aquaculture sector an

outstanding opportunity to come into contact with affluent guests

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Make the most of the synergy between DanFish and DanAqua and save

on your marketing costs, because now it is no longer necessary to take

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to Aalborg.

PAY-OFF.DK

DanFish is one of the worlds most important exhibitions for equip-

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In 2011, DanFish welcomed 350 exhibitors from 25 countries

and more than 13,000 visitors, including a number of invited key

buyers from all corners of the world.

AQUACULTUREEXHIBITION IN DENMARK

Dont worry its soeasy to get to Aalborg

danaqua.net danfish.com

Book a stand: Lasse H. Jessen, tel. +45 9935 550 9, [email protected]

Else Herfort, tel. +45 9935 5518, [email protected]

AALBORG CONGRESS & CULTURE CENTRE9, 10 AND 11 OCTOBER 2013

On this new blog we will be looking at all aspects of the aquaculture industry, as well

as covering news from the shing industry. Read about events, aquafeed, veterinary

news, and recirculations systems to open ocean pen farming, looking at new

technologies, from around the world.

AquaDirect runs side by side with our online resource Aquaculture Directory,

publishing press releases form key companies and key gures in the aquaculture

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technologies and feed development to deliver, a sustainable food source for the Global

DirectA new blog from NISA Media Ltd, bringing together news stories from around the world.

Keep up to date with the latest news at http://aquaculturedirect.blogspot.co.uk/


8/16

Are you taking advantage of

a new heater technology to

improve your business and

keep your customers koi and

other sh alive this winter?Until now aquaculture immersion heaters have used an internal

resistance wire as the heat source. Now there are electric immersion

heaters available using PTC (Positive Temperature Coefcient)

ceramic chips as the heat source. Heaters using PTC offer

advantages over traditional resistance heaters including increased

safety, greater reliability, and a lower operating cost.

Electric heaters made with resistance wire:

Traditional immersion heaters use resistance wire as the sourceof heat. Resistance wire is commonly used in toasters and electric

water heaters and is usually a nickel/chromium alloy. It will typically

heat to around 900F.

When an electric immersion heater using resistance wire operates in

air or becomes covered with solid buildup (such as sh waste), the

heat is not able to dissipate quickly enough. This results in a rapid

increase in operating temperature. Elevated temperatures shorten

the heater life and can damage surrounding plastic materials

including pond liners.

To protect these materials from high-temperature damage, electric

immersion heaters often include a built-in heater over-temperature

cutoff device called a protector. The protector senses the surfacetemperature of the heater and trips if it gets too hot. This shuts the

heater off. While the protector is a necessary safety device, a heater

that is shut off may threaten the pond or tank inhabitants.


Edward Dulzer

Process Technology

7010 Lindsay DriveMentor,

Ohio 44060, USA

Tel: +1 440 9741300

Web: www.process-technology.com

Aquaculture Scoop

SmartOne 90 exible cord metal bottom

heater with EasyPlug control option

SmartOne axial exible cord metal bottom

heater with EasyPlug control option

Example of PTC ceramic chips


9/16

As Don Campbell, First Ascent Fish Farm, explains, this is one of

his primary concerns with his current equipment. We train our

customers in both programming and care of the heater/controller.

However, too frequently the folks we train are not the folks cleaning

the tanks between deliveries and the heater is not unplugged,leading to a blown fuse [protector].

After a protector has tripped it must be replaced. If there is no

protector onsite, the tank or pond may suffer a loss of heat. For a

supplier or keeper of live sh, this can result in increased mortality.

Electric heaters made with PTC chips:

Electric heaters using PTC chips do not use resistance wire as

a source of heat. Instead, they use PTC (Positive Temperature

Coefcient) chips. When the chip temperature increases, its electrical

resistance also increases, resulting in decreased heat output. As the

PTC chips heat up, they will reach a designed temperature at which

they cannot get any hotter. Thus, PTC chips have a predetermined

temperature limit.

No protectors to replace.

Thermal protectors are not necessary with PTC electric immersion

heaters. Their self-limiting capability offers the safety of a protector

built directly into the heater core. This eliminates downtime caused

by a tripped protector and the need

for replacements.

PTC heaters will not damage tanks or liners.

PTC immersion heaters have a maximum surface temperature of

518F when in air and manufactured with -inch spacers so they

will not damage tank or pond liner materials. They will not damagetanks made from polyethylene (PE), high-density polyethylene

(HDPE), berglass, polypropylene (PP), CPVC or PVC as well as other

materials (see chart).

PTC heaters can operate in air or with solids buildup.

A resistance heater will overheat if operated in air, covered by scale

or solid waste. This elevated temperature can shorten the life of the

heater by several months. With PTC heaters the potential for burnout

is eliminated, thereby increasing service life. (Removing the material

from the surface of the PTC heater or putting it back in water will

raise the heat output accordingly.)

According to Campbell, the advantages offered by PTC heaters,

could pay for themselves in both labor savings and fewer mortalitiesin less than one year.

Aquaculture Scoop 8

Example of resistance wire found in traditional resistance-style electric

immersion heaters (which is no longer needed in PTC heaters)

SmartOne family of PTC electric

immersion heaters

www.PTSmartone.com

www.processtechnology.com


10/16

Introduction

Viral diseases outbreaks in the aquaculture industry and the

negative impact in the environment due to massive water exchange

practices of the traditional pond farming are two of the main

problems the aquaculture industry is facing now. The use of closed

super intensive commercial RAS has become an alternative that can

alleviate these problems.

In managing commercial closed RAS system for shrimp and tilapia

during the last 10 year, I have been facing one common problem

how to keep optimal-high levels of dissolve oxygen during the

whole production cycle? Stocking at high densities and feeding

rates create stress on the system which immediate manifestation

is on the oxygen concentration in the water. In looking at dif ferent

than traditional alternatives (different than traditional blowers,

paddle-wheels, air-lifts, diffusing hoses) I started working back in

2007 with Advanced Industrial Aeration with the commercial use of

TAERATION a non-venturi patent air injection technology that allows

transfer oxygen at higher rates using up to 40% less energy than

more common O2 diffusing systems.

The newly patented non-venturi aeration nozzle uses a centrifugal

pump to draw water from one end of the pond and injects oxygen

at the other end through the TAERATION nozzle. The system

simultaneously aerates, degasses and mixes with one energy source.

Specically, there is an ultra-ne micro bubble with a transfer rate of2.8% per foot of depth which is naturally aspirated delivering an air

to water ratio of 3/1.

This is an entirely new method of aeration that does not require

air blowers. Our Patented Technology transfers so much dissolved

Oxygen that in a clean water test we reach maximum saturation in

the time it takes to ow only half of the containment. Our process

is simple; we draw from one end and inject the water in the other

end through our patented Taeration Nozzle. This exclusive Push-Pull

system allows for complete circulation and De-Stratication of your

containment regardless of shape or depth. Drawing in only ambient

air we are capable of air/water ratios as high as 10 to 1 and are

achieving this using a fraction of the Horse Power used by all

other methods.

Aquaculture Scoop

More information

contact:

Jorge LangoIntegral Aquaculture Services

Priv. Florida #3 Int.1 Sabalo CountryClub.

Mazatln,SIN. 82110 MexicoTel: +521 669 1507892Skype: jorge.lango1

Twitter: @jorge_lango

James TerryAdvanced Industrial Aeration

1212 Catherine St

OrlandoFL 32801, USATel: +1 813 5056273www.aiaaeration.com


11/16

Aeration

With the highest transfer rate per ft. of depth (2.8%) our technology

transfers more of what the EPA denes as a "micro-bubble" than any

other method available today. In fact in a clean water test we reach

maximum saturation of the entire containment after re-circulating

only half of the containment through our Taeration nozzle regardless

of its shape or depth. More O2 results in higher densities and faster

growth rates.

Mixing and Circulation

Drawing water from one end and injecting it back into the opposite

end ensures proper circulation and disbursement of the O2 through-

out. This creates great water ow or tank velocity, but also keeps the

oc in suspension eliminating problematic ammonia pocket.

De-Gassing

Our Taeration technology injects air and water at a ratio averaging

of 3 to 1. For each gallon of water that ows through the nozzle, 3

gallons of air are entrained and injected out the exit cylinder. Oftenoverlooked and rarely tested for this high ratio de-gasses CO2 and

other noxious gasses from the water.

Commercial Experience in Intensive Shrimp Broodstock rearing

system.

In the rst trial in a shrimp Broodstock rearing commercial facility,

Litopennaeus vannamei were stocked at an initial density of 0.5 kg/

m into concrete ponds with volumes measuring 240m. Trial one ran

from May 27, 2008 through July 17, 2008. Trial two ran from June

29, 2008 through November 25, 2008. Trial three ran from August

12, 2008 through December 21, 2008. Final densities reached 1.5-

1.8kg/m upon harvesting.

The animals in all trials were fed based on the average weight of theshrimp. For example, if the average weight was 5.0g, they were fed

(5g)(5%)(population). When the average weight was 20g, they were

fed 3% of that weight until at 25g or more, the percentage bottomed

out at 2.0%. Parameters measured on a weekly basis included

average weight of shrimp (g) in order to calculate average growth per

week, total ammonia (TAN), nitrite, nitrate, and alkalinity using Hach

reagents and the Hach DR/890 colorimeter. Parameters measured

on a daily basis included dissolved oxygen (mg/L) and temperature

(C) using the YSI 550A. Density (kg/m) was calculated on a weekly

basis.

TAERATION technology provides a higher than acceptable ow

through the entire pond. As noted above, dissolved oxygen levels

were never reported below 6.2 mg/L. pH ranges were 7.7-8.3 in all

three trials. Total ammonia (TAN) did not exceed 0.7 mg/L in any trial;

nitrite did not exceed 2.42 mg/L in any trial. The range for alkalinity

in all trials was 124-200 mg/L.

Trials 1, 2 and 3 respectively showed survival rates of 87%, 88% and

93% and nal harvest size of 25g, 42g and 35g. The feed conversion

ratio for all trials averaged 1.81.

Commercial experience in shrimp super intensive closed RAS.An 87-day study was conducted in two newly constructed EPDM-

lined raceways (each RW approximately 34 m long x 3 m wide). RWs

were each lled with a mixture of seawater (50 m3) and biooc-rich

water (30 m3). To provide aeration, mixing, and circulation, a total of

14 non-Venturi TAERATION nozzles were positioned parallel to the

direction of ow along the bottom of each RWs wall.

Aquaculture Scoop 10


12/16

In addition, one nozzle was used to power a home-made foam

fractionator to enable removal of particulate and dissolved organic

matter. Two pumps (total of 5 hp) were used to power the 15 nozzles

in each RW. Shrimp (8.5 g) were stocked at 270/m3 (213/ m2).

Shrimp were fed a 35% CP diet. Freshwater was added (0.1 m3/d) to

maintain salinity, and RWs were maintained with no water exchange.

Each RW was equipped with a DO monitoring system (YSI 5200).

Water temperature, salinity, DO, and pH were monitored twice/d.

TAN, NO2-N, NO3-N, alkalinity, SS, turbidity, TSS, VSS, and cBOD5

were monitored at least once a week. TAN and NO2-N remained very

low (>0.5 mg/L) throughout the study. Mean temperature, salinity,

pH, and DO were: 30 C, 30.8 psu, 7.0, and 5.8 mg/L, respectively.

Atmospheric air was used to maintain high DO throughout the study,

concluding with 90% survival and an average yield of 6.4 kg/m3.

Shrimp growth averaged 1.4 g/wk with mean nal weights of 26.2 g.

Commercial experience in tilapia super intensive closed RAS.

We are producing market size tilapia at commercial level in intensive

closed biooc RAS replacing all the traditional air devices (blowers &

diffusing hoses) with the TAERATION technology.

We are stocking 6,500 tilapia 30 gr juveniles in 140 m3 circular

tanks (12.4 m ) and keep them during the grow out cycle until

harvest size at 700 gr. This is a zero water exchange biooc systemthat only recovers evaporation loses.

The TAERATION commercial system is producing 30 kg/m3 of

700 gr tilapia (4.5 MT/Tk) in a 6 month cycle at an FCR of 1.2 and

average nal survival of 93%

Comments.

Over the last few years, we have been proving that the use of

TAERATION Technology in the design, operation and managing of

commercial super intensive closed RAS for shrimp and tilapia is a

very efcient alternative to traditional aquaculture aeration systems

and ts perfectly in the super intensive management innovative

concept.

Jorge Lango, Director & Consultant at Integral Aquaculture Services,

was the rst person to bring and manage this new technology in

the aquaculture industry and he also work with Advanced Industrial

Aeration as Sales Representative and Solution Support worldwide.

Water parameters are keeping as follows:

Water Quality Parameters Observed Range

Temperature 27 30C

Dissolved Oxygen 5.0 7.0 ppm

CO2 Less than 10 ppm

pH 7.2 7.8

Total Hardness (CaCO3) More than 150 ppm

Total Alkalinity 130 a 180 ppm

Total Ammonia Less than 1 mg/lt

Non-ionized Ammonia (NH3) Less than 0.03 mg/lt

Nitrite (NO2) Less than 0.5 mg/lt

Nitrate (NO3) Less than 80 mg/lt

1 Aquaculture Scoop


13/16


14/16

January 2013

29th-31st January

International Production &

Processing Expo (IPPE),Atlanta, USA

February 2013

18th-19th February

Aquaculture Forum

Bremerhaven 2012-2013,

Workshop III,

Bremerhaven, Germany

21st-25th FebruaryAquaculture 2013,

Nashville, USA

March 2013

13th-15th March

Aquatic Asia 2013,

Bangkok, Thailand

17th-21st March

9th International Conferenceon Molluscan Shellsh

Safety (ICMSS),

Sydney Australia

26th-28th March

AGRA Middle East,

Dubai, UAE

April 2013

4th-5th April13th Aquaculture Insurance &

Risk Management Conference

Istanbul, Turkey

8th-12th April

The 4th Global Feed and

Food Congress (GFFC),

Sun City, South Africa

25th-28th April

Aqua Feed Workshop

Feed & Biomass,

Uzwil, Switzerland

May 2013

30th May-2nd June

Aquarama 2013,

Suntec City, Singapore

June 2013

5th-7th June

Indo Livestock 2013

Expo & Forum,

Bali, Indonesia

6th-8th June

Future Fish Eurasia,

Izmir, Turkey

August 2013

9th-12th August

Aquaculture Europe 2013,

Trondheim, Norway

13th-16th August

AquaNor,

Trondheim, Norway

September 2013

23rd-24th September

Aquaculture Forum Bremerhaven

2012-2013, Workshop IV,

Bremerhaven, Germany

October 2013

6th-10th October

Tenth International Symposium

on Tilapia in Aquaculture,Jerusalem, Israel

7th-9th October

Fish & Fish Tech Exhibition

Cairo, Egypt

9th-11th October

DanAqua

Aalborg Congress &

Culture Centre,

Aalborg, Denmark

November 2013

3rd-7th November

The Aquaculture Elsevier

Conference,

Las Palmas, Gran Canaria

7th-9th November

Expo Pesca & Acuiperu,

Lima, Peru

20th-22nd November

XII International Symposium

on Aquaculture Nutrition,

Tabasco, Mexico

December 2013

10th-13th December

Asian Pacic Aquaculture 2013,

Ho Chi Minh City, Vietnam

Please visit

http://aquaculturedirectory.co.uk/aquaculture-events-2/

for more information on these events

2 Aquaculture Scoop


15/16


16/16

Aquaculture

Directory

then

ewesto

nlin

e

directo

ry

Aquaculture Directory aims to become the number one information portal for the industry,

providing news, product releases, new appointments and information on upcoming events as

well as full company contact details. All our information is checked and verified before being

published, as we pride ourselves on accuracy.

A hard copy of the directory will be available at the end of the year,to reserve your free copy visit www.aquaculturedirectory.co.uk

or email us at [email protected]

Aquaculture Scoop December 2012 Issue

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