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


Oyster aquaculture has a long history and economic significance worldwide

How are oysters farmed – and what’s the effect on subaqueous soils?

Click on the flag for more information about United States UNITED STATES
Friday, July 03, 2020, 16:40 (GMT + 9)

Oyster aquaculture poses minor changes to soils and bottom-dwelling communities

These days, oyster aquaculture is stirring up the conventional definition of agriculture. But exactly how does one grow a crop of oysters? More specifically, how are soils involved in this underwater process? The Soil Science Society of America’s (SSSA) July 1st Soils Matter blog explores oyster aquaculture and the effects of biodeposits on the subaqueous soils.

Aquaculture practices maintain oysters underwater in confined containers. Stocking densities can range in quantity of oysters per container or within a given area. Farmers sort oysters by size so larger oysters do not outcompete smaller oysters; this also helps to keep the oysters organized for easy harvest when oysters reach a desirable market size. Credit: Annie Ragan / Soil Science Society of America (SSSA)

According to blogger Chelsea Duball, “Oysters are praised as ecosystem engineers. They have the natural capacity to clean major waterways by filtering up to 50 gallons of water a day! During this process, an oyster feeds off particulate matter and nutrients in natural waters. They use both to grow and reproduce.”

A typical off-bottom, rack-and-bag oyster farm at low-tide. This farm is in the subtidal zone of a coastal lagoon, where the subaqueous soils are never exposed to air. While oysters are typically maintained underwater, they can withstand short exposure to air during daily tidal fluctuations. Credit: Chelsea Duball / Soil Science Society of America (SSSA)

“Their growing process creates waste, though. Excess nutrients, particulates, and poop (yes, oysters poop!), are called ‘biodeposits’,” says Duball. “These fast-sinking biodeposits are rich in nitrogen and carbon. They also have the potential to accumulate on the seafloor. This can affect the underlying subaqueous soils and potentially overwhelm critters that live on – and in – them. For this reason, oyster farming is a methodical process that requires skill, environmental knowledge, and careful consideration.”

Studying subaqueous soils can be difficult, especially during windy, wavy conditions. Back on the boat where the work surface is steady, researchers from the University of Rhode Island are compositing subaqueous soil core samples taken from oyster aquaculture areas. These soil samples were later analyzed in a laboratory for a suite of physical, chemical, and biological analyses. Credit: Annie Ragan / Soil Science Society of America (SSSA)

Once oysters are large enough in size, oyster farmers use two primary means to growing oysters:

  •     Bottom practices allow oysters to grow under natural condition, as they are placed onto the subaqueous soil surface and exposed to the elements.
  •     Off-bottom practices keep oysters in confined containers. This method provides several advantages.

A scientific study revealed that oyster aquaculture had no net-negative impacts on the soils. To learn more about oyster aquaculture, read the entire blog post HERE

Source: Soil Science Society of America (SSSA)

editorial@fis.com
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
European Union
Aug 9, 08:00 (GMT + 9):
Other Media | EuropaAzul: Global Tuna Alliance calls for a 25 percent reduction in yellowfin tuna catches
Argentina
Aug 9, 06:00 (GMT + 9):
Other Media | Industrias Pesqueras: Argentina explains its strategy to improve the management and protection of coastal biodiversity
Canada
Aug 9, 03:00 (GMT + 9):
Othe Media | SeafoodSource: Canadian government kicking off seafood harvester COVID-19 aid program
Denmark
Aug 9, 01:00 (GMT + 9):
Other Media | FiskerForum: Pelagic catcher for Donso owners
United Kingdom
Aug 8, 18:00 (GMT + 9):
Pandemic threatens fishing industry in Edinburgh as catches plummet
United Kingdom
Aug 8, 17:00 (GMT + 9):
Major Buyers Call for Governments to Combat Increased Disease Risk in Asian Shrimp Farms
Solomon Islands
Aug 8, 06:00 (GMT + 9):
Other Media | EuropaAzul: The Pacific Islands Forum ratifies the control framework against illegal fishing
European Union
Aug 8, 04:00 (GMT + 9):
Other Media | iPac.acuicultura: Mussel consumption falls in northern Europe while Germans are the ones who buy it more expensive
United States
Aug 8, 02:00 (GMT + 9):
Other Media | SeafoodSource: NOAA cancels several more ecosystem and fishery surveys due to COVID-19
Chile
Aug 8, 01:00 (GMT + 9):
Other Media | aqua.cl: Coordinator of fishing shipowners expresses its 'most energetic and categorical rejection' of the new ministry project
Russian Federation
Aug 7, 17:30 (GMT + 9):
Expert: Without updating the fleet, national quotas can go to other states
India
Aug 7, 16:00 (GMT + 9):
Catches on the west coast decline due to climate change
United States
Aug 7, 15:00 (GMT + 9):
AquaBounty Technologies Announces Financial Results for the Quarter and Six Months Ended June 30, 2020, and Provides Corporate Update
Spain
Aug 7, 14:00 (GMT + 9):
Other Media | Industrias Pesqueras: The Canary Islands allocate 8.7 million euros to offset the costs of fishing and aquaculture operators
United States
Aug 7, 11:10 (GMT + 9):
Other Media | SalmonBusiness: American Airlines resuming Santiago and Miami salmon cargo flights



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Pandemic threatens fishing industry in Edinburgh as catches plummet
United Kingdom The amount of seafood brought to shore in Edinburgh fell 87% in April and May. The fishing industry in Edinburgh has seen a dramatic decline during the coronavirus pandemic. The amount of seafood br...
Expert: Without updating the fleet, national quotas can go to other states
Russia Fed. If the national reserves of aquatic biological resources are not developed, other states will apply for the right to extract them The need for a large-scale renewal of the fishing fleet of Russia, th...
China announces a three-month moratorium on giant squid fishing off the Galapagos and Argentina
China China will begin on September 1 a three-month fishing moratorium in international waters off the coast of the Galapagos Islands, which will be added to the one started last month off the Argentine coa...
Transfer of cod quota to next year
Norway To help reduce problems in the markets after the corona outbreak, the Ministry of Trade and Industry has introduced a temporary scheme for the transfer of cod quotas at vessel level from 2020 to 2...
 
Maruha Nichiro Corporation
Nichirei Corporation - Headquarters
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation - Wartsila Group Headquarters
ITOCHU Corporation - Headquarters
BAADER - Nordischer Maschinenbau Rud. Baader GmbH+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Sea Harvest Corporation (PTY) Ltd. - Group Headquarters
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
AquaChile S.A. - Group Headquarters
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC China National Fisheries Corporation - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods, Inc
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel - 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.
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
Brim ehf (formerly HB Grandi Ltd) - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Group Headquarters
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Mowi ASA (formerly 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. - Headquarters
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
CJ Corporation  - Group Headquarters
Greenpeace International - The Netherlands | Headquarters
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
NOREBO Group (former Ocean Trawlers Group)
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation - Headquarters
Cooke Inc. - Group Headquarters
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart | Wal-Mart Stores, Inc. (Supermarket) - Headquarters
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
Marine Stewardship Council - MSC Worldwide Headquarters
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2020 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER