Navigation Links
Ship noise makes crabs get crabby

A study published today in Biology Letters found that ship noise affects crab metabolism, with largest crabs faring worst, and found little evidence that crabs acclimatise to noise over time.

The team from the Universities of Bristol and Exeter found that crabs exposed to recordings of ship noise showed an increase in metabolic rate, indicating elevated stress. In the real world this could have implications for growth and, if the metabolic cost of noise causes crabs to spend more time foraging to compensate, could also increase the risk of predation.

Researcher Matt Wale from Bristol's School of Biological Sciences describes the study: "We used controlled experiments to consider how shore crabs of different sizes respond to both single and repeated exposure to playback of ship noise. Ship noise is the most common source of noise in the aquatic environment."

Explains Dr Andy Radford, Reader in Behavioural Ecology at Bristol: "We found that the metabolic rate of crabs exposed to ship noise was higher than those experiencing ambient harbour noise, and that larger individuals were affected most strongly. This is the first indication that there might be different responses to noise depending on the size of an individual."

If commercially important crabs and lobsters are affected by noise, these findings have implications for fisheries in busy shipping areas where large individuals may be losing out. Conversely, if reducing noise reduces metabolic costs, then quietening aquaculture facilities may lead to higher yields.

Dr Steve Simpson from the University of Exeter warned: "Since larger crabs are affected more strongly by noise this could have implications for fisheries in noisy areas. Also, many crustacean species, particularly prawns, are grown in aquaculture, so if acoustic disturbance has a metabolic cost then operational noise in farms may impact on growth, and quieter farms may be more profitable."


Contact: Caroline Clancy
University of Bristol

Related biology news :

1. NOAA: Underwater noise decreases whale communications in Stellwagen Bank sanctuary
2. Noise down, neuron signals up
3. ONR taps research teams to help reduce jet noise
4. Human noise has ripple effects on plants
5. Unexpected discovery reveals a new mechanism for how the cerebellum extracts signal from noise
6. Not just for the birds: Man-made noise has ripple effects on plants, too
7. Wiley makes scientific PDFs interactive with the ReadCube Web Reader from Labtiva
8. A microquasar makes a giant manatee nebula
9. Exercise is smart for your heart - and makes you smarter
10. Treatment with fungi makes a modern violin sound like a Stradiavarius
11. Waste cooking oil makes bioplastics cheaper
Post Your Comments:
(Date:5/6/2017)... SINGAPORE , May 5, 2017 ... has just announced a new breakthrough in biometric ... that exploits quantum mechanical properties to perform ... new smart semiconductor material created by Ram Group ... across finance, entertainment, transportation, supply chains and security. ...
(Date:4/13/2017)... UBM,s Advanced Design and Manufacturing event in ... and evolving technology through its 3D Printing and Smart ... the expo portion of the event and feature a ... on trending topics within 3D printing and smart manufacturing. ... will take place June 13-15, 2017 at the Jacob K. ...
(Date:4/11/2017)... Florida , April 11, 2017 ... a security technology company, announces the appointment of independent Directors ... Bendheim to its Board of Directors, furthering the company,s ... ... of NXT-ID, we look forward to their guidance and benefiting ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... ... October 10, 2017 , ... For ... has won a US2020 STEM Mentoring Award. Representatives of the FirstHand program travelled ... Volunteer Experience from US2020. , US2020’s mission is to change the trajectory of ...
(Date:10/10/2017)... SANTA CRUZ, Calif. , Oct. 10, 2017 /PRNewswire/ ... SBIR grant from the NIH to develop RealSeq®-SC (Single ... preparation kit for profiling small RNAs (including microRNAs) from ... Cell Analysis Program highlights the need to accelerate development ... "New techniques for ...
(Date:10/9/2017)... 9, 2017  BioTech Holdings announced today identification ... its ProCell stem cell therapy prevents limb loss ... Company, demonstrated that treatment with ProCell resulted in ... as compared to standard bone marrow stem cell ... in reduction of therapeutic effect.  ...
(Date:10/9/2017)... ... October 09, 2017 , ... The ... medical marijuana products targeting the needs of consumers who are incorporating medical marijuana ... place in Phoenix, Arizona. , As operators of two successful Valley dispensaries, The ...
Breaking Biology Technology: