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


New research posits that microplastics could also be a vector for pathogens, spreading antimicrobial-resistant genes. Shutterstock image.

What threat do microplastics, a.k.a. ‘ocean hitchhikers’, pose to aquaculture?

Click on the flag for more information about United States UNITED STATES
Wednesday, October 28, 2020, 09:00 (GMT + 9)

The following is an excerpt from an article published by The Global Aquaculture Advocate:

Trends in Microbiology: Microplastic ‘ocean hitchhikers’ could be a vector for pathogens, putting bivalve shellfish at risk

Microplastics might be small but their impact on aquatic life looms large.

The plastic particles, shed from textiles or created when larger pieces of plastic waste break down, are the most prevalent marine debris found in the ocean. Up to 51 trillion plastic particles, weighing between 93,000 to 236,000 metric tons, are estimated to be floating on the surface of the oceans.


Microplastics from primary and secondary sources enter the food chain by direct ingestion at all trophic levels, but are also acquired in prey items and hence may bioaccumulate in larger organisms, causing negative health effects that may impact population persistence. Ultimately microplastics and associated additives or sorbed pollutants may threaten the safety of seafood ingested by humans (Image: courtesy  https://doi.org/10.1002/lol2.10122 Citations: 5) | Click image to enlarge

That seems like a lot, but it’s only about 1 percent of the plastic waste estimated to have entered the ocean in 2010 alone.

“Plastic pollution is overwhelming [and] almost unavoidable to some degree,” Maria Sepulveda, DVM, Ph.D., professor in the aquaculture research lab at Purdue University, told the Advocate.

Microplastics, which technically measure less than five millimeters in diameter, have been found in myriad aquatic life, ranging from plankton to whales. Research shows that microplastics affect growth rates, increase stress and contribute to higher mortality rates. A new paper published in the journal Trends in Microbiology posits that microplastics could also be a vector for pathogens, spreading antimicrobial-resistant genes.

The concentration of antimicrobial-resistant bacteria is up to 5,000 times higher on microplastic surfaces than in the surrounding seawater, which could allow the sesame seed-sized plastic particles to transmit harmful microorganisms and trigger disease outbreaks.

Mussels, oysters, clams and other filter feeders are potential hosts for the so-called “ocean hitchhikers” and microplastic is often detected in the edible bivalves, raising concerns about pathogen transfer and potential economic losses in aquaculture, according to study co-author Ceri Lewis Ph.D., marine biologist and associate professor at the University of Exeter.

“When [plastics] become smaller they will pass through guts quite slowly and they take up space that should be full of food,” explained Lewis. “Most of the mussels and oysters and other species at the bottom of the food chain have to grow and reproduce pretty quickly [and] anything that reduces their ability to take up energy from their food can slow down their growth and have more consequences for their reproduction.”

Sepulveda of Purdue Univ. worries that trout and other fish-eating species might also be exposed to toxic microplastics because the particles floating around in marine environments could end up in their guts – and the guts of the fish they eat – leading to sublethal or lethal exposures.

“There are a lot of chemicals that stick to the plastic from the environment. So now we’re talking about an inert particle that’s not inert anymore because it has all these bioactive chemicals surrounding it,” she explains. “The fish acts like a carrier.”

Data is limited

So far, little work has been done to assess the impacts of microplastics (or their potential to transmit pathogens) in aquaculture. Lewis admits that questions remain about whether the pathogens on the microplastics will transfer to marine species or increase the number of times producers have to shut down to recover from outbreaks.

Research on microplastics is still new but the risks are not, Lewis added. The pathogens that could be transmitted on microplastics are already found naturally in oysters and mussels and producers monitor for them in aquaculture operations.(continued...)

Author: Jodi Helmer / The Global Aquaculture Advocate | Read the rest of the story by clicking the link
here

[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Norway
Nov 25, 18:30 (GMT + 9):
Fish Pool Salmon Price Status Report for week 48
Norway
Nov 25, 06:10 (GMT + 9):
Seaweed cultivation is becoming a major industry. Are we prepared?
European Union
Nov 25, 00:20 (GMT + 9):
Automation of fishery product labeling reduces non-compliance errors by 98%
Norway
Nov 24, 19:00 (GMT + 9):
Accelerated organic growth expected for AKVA group
Norway
Nov 24, 15:00 (GMT + 9):
Statistics │ Exports │ Marine products │ October 2020
India
Nov 24, 00:10 (GMT + 9):
Chennai SHG wins laurel for converting fish waste to value added products
Netherlands
Nov 23, 19:00 (GMT + 9):
Damen completes Eidsvaag Opal conversion
Japan
Nov 23, 00:00 (GMT + 9):
Statistics │ Import Food products from the world │ 2014-20
United States
Nov 20, 07:00 (GMT + 9):
NovoNutrients partners up on its pathway to commercialization
Faroe Islands
Nov 20, 00:10 (GMT + 9):
Atlantic Salmon Farmer Hiddenfjord Becomes the Industry’s First to Stop Using Air Freight
India
Nov 19, 07:00 (GMT + 9):
‘Aquaculture farmers should use biofloc technology carefully’
Norway
Nov 18, 16:00 (GMT + 9):
Fish Pool Salmon Price Status Report for week 47
South Korea
Nov 18, 09:00 (GMT + 9):
Frozen whiteleg shrimp, imports 57% from Equador
United States
Nov 18, 08:00 (GMT + 9):
Officials say salmon fish farm holds promise for southwest Virginia
Japan
Nov 17, 19:30 (GMT + 9):
The Tokyo Sustainable Seafood Symposium draws to a close with 3,800 online participants from 57 different countries and regions



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Huge search continues for missing crew after fishing boat sinks
United Kingdom A desperate search for two missing fishermen has entered its second day after their boat sank off the East Sussex coast. The coastguard pulled one man from the water after the vessel, Joanna C, se...
Domestic market situation for wholesale frozen fish
Russia Fed. From November 16 to 22, the price dynamics of frozen fish in the wholesale segment of the domestic market continued to be multidirectional. In the Far East region, prices for pollock (93 rubles / k...
Lots of fishing is going on across Alaska – November updates!
United States A preliminary wrap up of Alaska’s 2020 salmon fishery shows that communities will be hurting in terms of fish tax revenues this coming year. The value of salmon landings is down by half or much ...
Frozen yellow croaker imports, down 50% year-on-year
South Korea In October 2020, the import volume of frozen yellow croaker was 318 tons, down 50 % from 631 tons in the previous year, while the cumulative import volume in October was 3,230 tons, down 27 % from 4,4...
 
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