Welcome to FIS   Sponsored By
United States
Subscribe to FIS | Register with FIS | Advertise with FIS | Newsletter | About FIS | Contact us
   


Farmed shrimp. (Photo Credit: Terje Engoe)

Environmental trigger for EMS uncovered

Click on the flag for more information about Malaysia MALAYSIA
Thursday, June 13, 2013, 00:40 (GMT + 9)

Research conducted on early mortality syndrome (EMS) at a large integrated shrimp farm in Malaysia has indicated that the disease repeatedly manifests in ponds with an increase in pH to 8.5 to 8.8.

Conducted by Noriaki Akazawa, managing director of Agrobest Sdn Bhd, with assistance from Kinki University and the National Research Institute of Aquaculture in Japan, the PhD research is featured in an article in the upcoming July-August edition of the Global Aquaculture Advocate, the Global Aquaculture Alliance’s (GAA) bimonthly magazine.

The full research results are being prepared for publication in a peer-reviewed journal.

EMS, more technically known as acute hepatopancreatic necrosis syndrome (AHPNS), has had a significant impact on shrimp production in Southeast Asia. The research results are encouraging because they provide shrimp farmers with a tool to improve management of the disease in ponds.

The research was conducted at Agrobest Sdn Bhd farm in Pahang, Malaysia, which produces Pacific white shrimp and black tiger shrimp in 461 plastic-lined ponds.

EMS first appeared at the farm in early January 2011 in five ponds stocked with postlarvae from the same hatchery about one month earlier. Within two months, the disease had spread throughout the farm. Typical mortality in the affected ponds was 70 to 80 per cent, and all ages and sizes of shrimp were affected.

A review of water quality data from approximately 80 affected and unaffected ponds stocked during the same month indicated several water quality differences that were correlated with outbreaks. The researchers then conducted replicated aquarium trials with controlled levels of various parameters.

These tests confirmed that the disease repeatedly regressed at lower pH (around 7) and manifested at higher pH (8.5 to 8.8). Survival rates in Agrobest ponds have greatly improved with management of pH to avoid the zone of EMS susceptibility.

These findings come about six weeks after a research team led by Dr Donald Lightner at the University of Arizona reported that EMS is caused by a bacterial agent. Lightner’s research will also be featured in the July-August edition of the Advocate.

Related article:

-
Scientists discover pathogen behind EMS outbreaks

editorial@fis.com
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Japan
Apr 17, 17:00 (GMT + 9):
Easter recess
European Union
Apr 17, 05:20 (GMT + 9):
IN BRIEF - European Parliament agrees to Fisheries Partnership Agreements with Comoros, Madagascar and Seychelles
Russian Federation
Apr 17, 05:00 (GMT + 9):
IN BRIEF - Fishing vessel Taurus joins the Russian fleet
China
Apr 17, 04:00 (GMT + 9):
Haiku records strong decrease in profits
New Zealand
Apr 17, 03:30 (GMT + 9):
Fisheries Amendment Bill could affect iwi firms
Ecuador
Apr 17, 03:00 (GMT + 9):
Shrimp firms lay off over 400 workers
Norway
Apr 17, 02:00 (GMT + 9):
Salmon price status at week 16
Mexico
Apr 17, 01:40 (GMT + 9):
Identification of wild and farmed shrimp origin sought
Australia
Apr 17, 00:50 (GMT + 9):
Tassal's salmon farm achieves ASC certification
United Kingdom
Apr 16, 23:50 (GMT + 9):
Scottish fish landings value drops
Spain
Apr 16, 23:20 (GMT + 9):
Galicia announces 40 pc increase in aid for scrapping fishing vessels
United States
Apr 16, 22:50 (GMT + 9):
Acidic waters make fish prone to predators
Peru
Apr 16, 22:10 (GMT + 9):
Seafood for direct human consumption grows
India
Apr 16, 22:00 (GMT + 9):
IN BRIEF - Fishing ban sends seafood prices soaring
New Zealand
Apr 16, 22:00 (GMT + 9):
IN BRIEF - 'Focus must now go on' fishing industry jobs for NZ workers



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Technology could replace observers aboard tuna vessels
Spain Several Spanish tuna vessels operating in the Indian Ocean are in the "testing phase" to use technological equipment for replacing onboard observers.
Shark fin trade experiences sharp drop
Hong Kong The volume of shark fin products imported into Hong Kong in 2013 dropped from 8,285.1 tonnes to 5,412.2 tonnes, representing 34.7 per cent, according to the latest figures from the Census and Statistics Department.
Ocean acidification proves to have domino effect
Australia Researchers from the Australian Institute of Marine Science are currently studying the shallow volcanic CO2 seeps in eastern Papua New Guinea in Milne Bay Province to observe how ocean acidification is affecting the oceans.
Fraud discovered in the fish trade in Santa Catarina
Brazil A joint operation by the Federal Police of Itajaí and the Ministry of Agriculture, Livestock and Supply revealed that several fishing companies in Santa Catarina were committing fraud when selling fishery products.
 
Maruha Nichiro Corporation
Nichirei Corporation -Headquarter-
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation -Wartsila Group Headquarter-
ITOCHU Corporation -Headquarter-
BAADER - Nordischer Maschinenbau Rud. Baader GmbH (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Pescanova, S.A. - Group Headquarters
Sea Harvest Corporation (PTY) Ltd.
I&J - Irvin & Johnson Limited
Blue Continent Products (Pty) Ltd - (Oceana Group Limited)
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC International Fisheries Corp. - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods Inc. -Headquarter-
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel ehf - Group Headquarters
SalMar ASA - Group Headquarters
Sajo Industries Co., Ltd
Hansung Enterprise Co.,Ltd.
BIM - Irish Sea Fisheries Board (An Bord Iascaigh Mhara)
CEFAS - Centre for Environment, Fisheries & Aquaculture Science
COPEINCA ASA - Corporacion Pesquera Inca S.A.C.
Chun Cheng Fishery Enterprise Pte Ltd.
Food Project (Siam) Co., Ltd.
VASEP - Vietnam Association of Seafood Exporters & Producers
Gomes da Costa
Furuno Electric Co., Ltd. (Headquarters)
NISSUI - Nippon Suisan Kaisha, Ltd. - Group Headquarters
FAO -Food and Agriculture Organization- Fisheries and Aquaculture Department (Headquarter)
Hagoromo Foods Co., Ltd.
Koden Electronics Co., Ltd. (Headquarters)
A.P. Møller - Maersk A/S - Headquarters
BVQI - Bureau Veritas Quality International (Head Office)
UPS - United Parcel Service, Inc. - Headquarters
Bumble Bee Foods, LLC
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Group Headquarters
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Omega Protein Corporation -Headquarter-
Grupo Calvo - Luis Calvo Sanz, S.A. (Group Headquarter)
Marona S.A.
Marine Harvest ASA - Headquarters
Marubeni Europe Plc -UK-
Findus Ltd
Icom Inc. (Headquarter)
WWF Centroamerica
Oceana Group Limited
The David and Lucile Packard Foundation
Ajinomoto Co., Inc. -Headquarter-
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
Mitsubishi Corporation Marine Products Depts. D.Team
CJ Corporation  -Holding Headquarter-
Greenpeace International - The Netherlands
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
Ocean Trawlers Group - Ocean Trawlers HK Ltd.
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation -Headquarter-
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart / Wal-Mart Stores, Inc. (Supermarket) -Headquarter-
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
INVE Group - Head Office
Marine Stewardship Council  - MSC Worldwide
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
Morpol ASA - Group Headquarters
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2014 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER