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


Click to know how to advertise in FIS
United Kingdom
Nov 27, 04:00 (GMT + 9):
IN BRIEF - Scottish Salmon Company Q3 EBITDA swings to loss GBP 1.5 million
Nov 27, 04:00 (GMT + 9):
IN BRIEF - Yalelo to invest USD 9.5 million in fish production
United States
Nov 27, 04:00 (GMT + 9):
IN BRIEF - Lemitar shrimp farm to get federal grant to expand marketing
United States
Nov 27, 03:00 (GMT + 9):
USDA creates inspection programme for catfish
United Kingdom
Nov 27, 02:20 (GMT + 9):
The Scottish Salmon Company faces challenging quarter
Nov 27, 01:40 (GMT + 9):
Juvenile anchovy stock assessment starts
United States
Nov 27, 01:00 (GMT + 9):
IN BRIEF - Unified effort in Congress protects Alaska's seafood powerhouse
Nov 27, 01:00 (GMT + 9):
IN BRIEF - Buy-Low Foods is the First Major Grocer in North America to Achieve Sustainable Seafood Commitment
New Zealand
Nov 27, 00:50 (GMT + 9):
Illegal shellfish market ring unveiled
Hong Kong
Nov 26, 23:50 (GMT + 9):
Court appoints liquidators for China Fishery
Nov 26, 23:30 (GMT + 9):
Safety of fisheries observers needs to be addressed
Nov 26, 22:40 (GMT + 9):
Puchi advocates State intervention to reduce salmon production
Nov 26, 21:50 (GMT + 9):
Spanish fleet could return to Mauritanian waters in early December
United States
Nov 26, 03:30 (GMT + 9):
US Senator devises steps to fight back against FDA's GE salmon approval
Nov 26, 03:00 (GMT + 9):
McDonald's Spain supports tuna sustainability

Nanotechnology becomes new technological tool to develop seafood
Spain Anfaco-Cecopesca, through its Technology Centre, is developing an ambitious R+D+i project aimed at the enhancement of marine resources for the production of bioactive compounds and the design of functional foods, applying nanotechnology as essential facilitating technology.
Spanish vessels may fish in Mauritania 'before Christmas'
Spain The Secretary General of Fisheries confirmed that the Spanish fleet can resume fishing activities in Mauritanian waters before Christmas, following the entry into force of the fisheries agreement between the EU and Mauritania.
Scientists reveal ocean fish camouflage secrets
United States A team of scientists from the University of Texas, Austin, has found out that certain fish use microscopic structures called platelets in their skin cells to reflect polarized light, which allows the fish to seemingly disappear from their predators.
Shrimp leads investments in aquaculture
Brazil The shrimp is the species that recorded the highest level of investment among the five aquaculture resources evaluated this year by the Future Field Project of the Confederation on Agriculture and Livestock of Brazil.
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+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Nueva Pescanova, S.L. - Group Headquarters
Sea Harvest Corporation (PTY) Ltd.
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
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-
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
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2015 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER