Heavy metal link to mutations, low growth and fertility among crustaceans in Sydney Harbor... ( Heavy metal pollutants are linked to...)

Heavy metal link to mutations, low growth and fertility among crustaceans in Sydney Harbor tributary

Date:8/25/2008

Heavy metal pollutants are linked to genetic mutations, stunted growth and declining fertility among small crustaceans in the Parramatta River, the main tributary of Sydney Harbour, new research shows.

The finding adds to mounting evidence that toxic sediments and seaweeds in Sydney Harbour are a deadly diet for many sea creatures.

The new findings, published in the journal, Science of the Total Environment, reveal genetic mutations among crustaceans (Melita plumulosa) in the Parramatta River but none among those in the cleaner Hawkesbury River.

Earlier this year, UNSW scientists revealed that copper-contaminated seaweeds in Sydney Harbour were killing 75 percent of the offspring of small crustaceans that feed on a common brown seaweed.

That study showed that the harbour's seaweeds have the world's highest levels of copper and lead contamination as a consequence of stormwater run-off, industrial wastewaters and motorised watercraft.

The new study found the mutations and lower growth and fertility persisted through several generations of M. plumulosa in controlled laboratory conditions, suggesting that genetic changes are causing permanent negative impacts.

"The lower fertility and growth rates among the creatures exposed to contaminants is probably a stress response," says the study's lead author, UNSW science honours student, Pann Pann Chung.

The crustaceans were randomly sampled from two sites within each river: Homebush Bay South and Duck River in the Parramatta River, and Mooney Mooney and Half Moon Bend in the Hawkesbury.

M. plumulosa is a shrimp-like creature found among rocks and mudflats on shorelines and tide zones, although little is known about its genetic history. A native to the south-eastern coast of Australia, the amphipod feeds on organic material in sand and sediment.

"These crustaceans are sensitive to heavy metals such as copper, cadm
'/>"/>

Contact: Dan Gaffney
headlines.news@gmail.com
61-411-156-015
University of New South Wales
Source:Eurekalert

3

GOOD

Page: 1 2
Related biology news :

1. Heavy rainfall on the increase
2. Heavy metals in the Peak District -- evidence from bugs in blanket bogs
3. Alzheimers starts earlier for heavy drinkers, smokers
4. Scientists develop a fast system to detect metal concentrations in iron and steel industry workers
5. Metal foam has a good memory
6. UDs Bobev receives NSF Early Career Award for research on novel compounds of rare Earth metals
7. Can certain metals repel sharks from fishing gear?
8. Circadian clock controls plant growth hormone
9. Population movements and money remittances spur forest regrowth
10. Paracetamol, one of most used analgesics, could slow down bone growth
11. Targeting nerve growth factor may cure liver cancer

Post Your Comments:

(Date:3/12/2010)... (March 12, 2010) Calculations are fine, but seeing ... by Rice University students who decided to put to ... , In 1908, the German physicist Gustav Mie ... describe the interaction of electromagnetic waves with a spherical ... since for researchers seeking to quantify how nanoscale plasmonic ...

(Date:3/12/2010)... WWF and TRAFFIC welcome a World Federation of ... to use tiger bone or any other parts from ... symposium Friday in Beijing and notes that some of ... basis. The use of tiger bones was removed from ... China first introduced a domestic ban on tiger trade. ...

(Date:3/12/2010)... 2010 Keystone Symposia on Molecular and Cellular ... $1.37 million, five-year MARC (Minority Access to Research ... Institute of General Medical Sciences of the National ... Minority Scientists and Trainees at Keystone Symposia," the ... participation in biomedical research by historically underrepresented US ...

Breaking Biology News(10 mins):Look at Mie! 2 Chinese medicine societies reject tiger bones ahead of CITES conference 2 Keystone Symposia awarded $1.37 million, 5-year NIH grant to fund ongoing diversity efforts 2 Keystone Symposia awarded $1.37 million, 5-year NIH grant to fund ongoing diversity efforts 3 Keystone Symposia awarded $1.37 million, 5-year NIH grant to fund ongoing diversity efforts 4 Herbal Remedies Can Cause Cardiac Problems 65616 1 Herbal Remedies Can Cause Cardiac Problems 65616 2 Herbal Remedies Can Cause Cardiac Problems 65616 3 Abstinence Only Classes Reduced Sexual Activity Study Found 65611 1 Abstinence Only Classes Reduced Sexual Activity Study Found 65611 2 Abstinence Only Classes Reduced Sexual Activity Study Found 65611 3 GSK 2009 Financial Results Announcement and Teleconference Details 65606 1 GSK 2009 Financial Results Announcement and Teleconference Details 65606 2

[0] Look at Mie![0] Chinese medicine societies reject tiger bones ahead of CITES conference [0] Keystone Symposia awarded $1.37 million, 5-year NIH grant to fund ongoing diversity efforts

... team composed of Harvard students and alumni was among ... Development Marketplace competition, held in Accra, Ghana from May ... lighting systems suitable for Sub-Saharan Africa, netted the group ... as only 26 percent of Africas population has access ...

... Di Benedetto and Micaela Caramellino, two doctoral ... received recognition at a student poster event organized ... nano- and micro-sized drug particles. The New Jersey ... was the sponsor. , In recent years, ...

... Helmholtz Centre for Environmental Research (UFZ) in Leipzig ... Pasadena succeeded in capturing syntrophic (means "feeding together") ... oceanic emission of methane into the atmosphere. These ... component of the global carbon cycle and a ...

Other Biology News:Undergraduates develop 'dirt-powered' microbial fuel cells to light Africa 2 Undergraduates develop 'dirt-powered' microbial fuel cells to light Africa 3 NJIT doctoral students receive recognition at poster competition 2 Deep sea methane scavengers captured 2 Deep sea methane scavengers captured 3

Undergraduates develop 'dirt-powered' microbial fuel cells to light Africa NJIT doctoral students receive recognition at poster competition Deep sea methane scavengers captured

(Date:3/14/2010)... LONDON , March 15 The world,s "hottest" researcher is biochemist Rudolf Jaenisch from the Massachusetts Institute of Technology . ... researchers. , ... , , ... ... ...

(Date:3/14/2010)... , March 14, 2010 Cardiovascular risk can,be reduced by ... combination of elevated triglycerides,(TG, 204 mg/dL or 2.3 mmol/L or higher) and low ... is,achieved by adding fenofibrate to simvastatin. Only 20 of these patients need,to be ... ... ...

(Date:3/14/2010)... landmark study involving more than 9,000 people showed that the high blood pressure medicine valsartan delayed progression to type 2 diabetes in patients with cardiovascular ... ... , ... ... ...

(Date:3/12/2010)... science major Kimberly Thompson wins $5,000 in CUNY Nobel Science ... ... (Vocus) March 12, 2010 -- Borough of Manhattan Community ... place in the economics category of the 2009 CUNY Nobel ... , , , ,Thompson--the contest,s only awardee from a community ...

[0] Thomson Reuters Names the World's 'Hottest' Researchers [0] ACCORD Lipid Study Brings new Hope to People With Type 2 Diabetes and Atherogenic Dyslipidemia Says International Academic Foundation [0] NAVIGATOR Shows Valsartan Delayed Progression to Type 2 Diabetes in At-Risk Cardiovascular Patients With Impaired Glucose Tolerance [0] BMCC Student—the Only Community College Winner—Lands Grand Prize in Nobel Science Challenge

... of a wide range of biological samples , using disposable ... , The TissueRuptor system enables ... and plant tissue. , , ... Disposable probes to help eliminate cross-contamination , ...

... Tracy Worzella and Brad Larson , Promega Corporation, Madison, WI, USA , ... Application Note 138 ... , , Correlated measurement of an ... Monitoring of both luminescence and fluorescence output signals from , one assay well ...

... , ABSTRACT , ... new device that automatically counts yeast cells in about 30 seconds, making ... for counting mammalian cells, the new NucleoCounter YC-100 for yeast combines a ... rapid and accurate cell counts. , ...

Other Biology Technology:TissueRuptor System 2 TissueRuptor System 3 Promegas Multiplexed Cell Viability and Apoptosis Assays performed on the PHERAstar 2 Promegas Multiplexed Cell Viability and Apoptosis Assays performed on the PHERAstar 3 Promegas Multiplexed Cell Viability and Apoptosis Assays performed on the PHERAstar 4 Promegas Multiplexed Cell Viability and Apoptosis Assays performed on the PHERAstar 5 New Automated Yeast Cell Counter Ends Tedium & Errors of Manual Counting 2

TissueRuptor System Promegas Multiplexed Cell Viability and Apoptosis Assays performed on the PHERAstar New Automated Yeast Cell Counter Ends Tedium & Errors of Manual Counting

HOXC11 Antibody...

Goat polyclonal to NIR1 ( Abpromise for all tested applications). Antigen: Synthetic peptide: SWARGPPKFESVP, corresponding to C terminal amino acids 962-974 of NIR1. Entrez Gene ID: 83394 ...

Anti-NeuroD 6 Immunogen: Synthetic peptide. Available Date: 36708...

HOXC11 Antibody...

Biology Products:

Chicken Anti-HOXC11 Polyclonal Antibody, Unconjugated from ProSci, Inc Goat Anti-NIR1 Polyclonal Antibody, Unconjugated from Abcam Rabbit Anti-NeuroD 6 Antibody, Unconjugated from CHEMICON Chicken Anti-HOXC11 Polyclonal Antibody, Unconjugated from ProSci, Inc

Heavy metal link to mutations, low growth and fertility among crustaceans in Sydney Harbor...( Heavy metal pollutants are linked to...)