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


The findings highlight the importance of accounting for assessments of pharmaceuticals in rivers and lakes (Photo: FIS stock)

SSRI contamination endangers survival rate of fish

Click on the flag for more information about United States UNITED STATES
Thursday, March 08, 2012, 15:30 (GMT + 9)

Fish exhibit abnormal behaviour and lower levels of anxiety when exposed to drugs containing Selective Serotonin Reuptake Inhibitors (SSRI), tells a study by Baylor University researchers. The fish were found to expose themselves to greater predation risk.

The study also found that human data for drug activity can help predict surface water concentrations of SSRIs which negatively impact fish behaviour.

The results were published online in the journal Environmental Science & Technology.

This research has implications for communities planning to implement wastewater reuse programmes.

"This research is an important step in determining the long-term consequences of drugs taken up by fish in the environment and has direct implications for both survival and fitness of fish," said Bryan Brooks, Ph.D., professor of environmental science and biomedical studies and director of environmental health science in Baylor's College of Arts & Sciences.

In the study, the shelter-seeking behaviour of fathead minnows was supervised under laboratory conditions for 28 days using digital tracking software to diagnose abnormal behaviour while they were exposed to the SSRI sertraline, a drug used to treat panic attacks and other disorders. Sertraline concentrations and lighting conditions strongly impacted the time the minnows spent in a sheltered area.

During dark conditions, sertraline-exposed fish spent about 67-78 per cent of the time that control fish spent in the shelter. During light intervals, fish exposed to sertraline spent between 18-42 per cent less time in the shelters.

"The shelter was the only dark area during light conditions in the observation tanks; therefore, control fish apparently retreated to the shelter to reduce anxiety, whereas fish exposed to sertraline appeared to display reduced anxiety and did not exhibit this behavior," Brooks explained.

"Based on our observations, we hypothesize that fish exposed to sertraline displayed reduced levels of anxiety and consequently were more willing to explore outside of their shelters during both light and dark conditions. Fish willing to spend more time away from shelters face greater predation risk, and their overall survival rate may be reduced," he elaborated.

These findings highlight the importance of accounting for the pH of rivers and lakes in surface water quality assessments of pharmaceuticals and other weak acid and weak base contaminants.

"Conservation and water reuse strategies will become paramount to meet water resource needs of future generations. Understanding emerging risks to water quality, from pharmaceuticals and other contaminants present at trace levels, is equally important to support responsible management decisions and meet environmental protection goals," Brooks added.

A previous study by Baylor found residues of sertraline and fluoxetine, another SSRI, and their metabolites in three different types of fish living in the Pecan Creek in North Texas. A follow-up study there detected three more medications in fish -- diphenhydramine, an over-the-counter antihistamine commonly used as a sedative in sleep aids and motion sickness; diltiazem, a drug for high blood pressure; and carbamazepine, a treatment for epilepsy and bipolar disorder.

By Natalia Real
editorial@fis.com
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Spain
Oct 24, 23:50 (GMT + 9):
Spain calls for increased bluefin tuna TAC for EU fleet
Chile
Oct 24, 23:20 (GMT + 9):
Ager acquires PescaChile assets, sets trade agreement with Europacífico
Chile
Oct 24, 23:10 (GMT + 9):
Global Salmon Initiative launches first progress report
India
Oct 24, 22:40 (GMT + 9):
IN BRIEF - India's first fish hospital to come up in Kolkata
South Africa
Oct 24, 22:40 (GMT + 9):
IN BRIEF - Pirates threaten fishing industry
United States
Oct 24, 22:40 (GMT + 9):
IN BRIEF - City faces 'direct hit' in fish losses
Argentina
Oct 24, 22:40 (GMT + 9):
Anchovy and cartilaginous fish management measures defined in Argentine-Uruguay zone
Iceland
Oct 24, 22:30 (GMT + 9):
IN BRIEF - Negotiations on the sale of shares in Stofnfiskur hf.
Australia
Oct 24, 22:30 (GMT + 9):
IN BRIEF - Spencer Gulf prawn fleet helps a new management plan to protect the industry into the future
Canada
Oct 24, 22:20 (GMT + 9):
Top marine scientists call for action on 'invisible' fisheries
Norway
Oct 24, 22:00 (GMT + 9):
IN BRIEF - HAVFISK :Financial calendar for 2015
Norway
Oct 24, 21:50 (GMT + 9):
Salmon price status at week 43
American Samoa
Oct 24, 04:00 (GMT + 9):
Kiribati's decision worries local and American tuna entrepreneurs
Spain
Oct 24, 03:10 (GMT + 9):
France has doubts about Galician mussel
Chile
Oct 24, 02:30 (GMT + 9):
Marine Harvest records increased harvest and operating income



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Shipowners require 'level playing field' for all fleets fishing for sharks
Spain Two organizations of the fishing longlining sector ascribed to the Cooperative of Shipowners of the Port of Vigo demand that Spain and other Member States must require the EC to promote non-shark finning regulations.
Antarctic ecosystem protection hindered by nations’ tensions
Worldwide Efforts to protect marine ecosystem Antarctica’s Ross Sea could be hindered by tensions between some Antarctic nations, according to the secretary of the Commission for the Conservation of Antarctic Marine Living Resources.
Salmon importer joins Japanese giant firm SNG subsidiary
United States The salmon importing and distributing firm SalmonDepot USA has confirmed its merger with SNG UK, Ltd., the European operating branch of Shin Nihon Global.
International help to boost aquaculture development
East Timor Two agreements that will promote aquaculture as a means to improve nutrition and reduce poverty were recently signed in Timor-Leste as part of a celebration of World Food Day.
 
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 China National Fisheries Corporation - 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
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 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
Morpol ASA - Group Headquarters
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

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