Navigation Links
Boat noise impacts development and survival of sea hares
Date:7/31/2014

While previous studies have shown that marine noise can affect animal movement and communication, with unknown ecological consequences, scientists from the Universities of Bristol and Exeter and the cole Pratique des Hautes tudes (EPHE) CRIOBE in France have demonstrated that boat noise stops embryonic development and increases larval mortality in sea hares.

Sea hares, (specifically the sea slug Stylocheilus striatus used in this study) usually hatch from their eggs to swim away and later feed on toxic alga but this study, conducted in a coral reef lagoon in French Polynesia, found that when exposed to playback of boat noise, more eggs failed to develop and those that hatched were more likely to die.

Lead author Sophie Nedelec, a PhD researcher at the University of Bristol and EPHE said: "Traffic noise is now one of the most widespread global pollutants. If the reproductive output of vulnerable species is reduced, we could be changing communities and losing vital ecological functions. This species is particularly important because it eats a toxic alga that affects recruitment of fish to coral reefs."

Anthropogenic (man-made) noise is now recognised as a global pollutant, appearing in national and international legislation (for example, the US National Environment Policy Act and European Commission Marine Strategy Framework Directive). Boats are found around all coastal environments where people live and the noise they make spreads far and wide. Increasingly, recent research has indicated that noise from human activities can affect the behaviour and physiology of animals, but this is the first study to show impacts on development and larval survival.

Co-author, Dr Steve Simpson, a marine biologist and senior lecturer at the University of Exeter, said: "Boat noise may cause stress or physically disrupt cells during development, affecting chances of survival. Since one in five people in the world rely on marine animals as a major source of protein, regulating traffic noise in important fisheries areas could help marine communities and the people that depend on them."

Co-author, Dr Suzanne Mills, an evolutionary biologist from CRIOBE, Perpignan said: "Our study used controlled field experiments and a split-brood, counterbalanced design to account for any possible site or genetic effects. Nearly 30,000 eggs were placed in plastic tubes. Half the eggs from each mother were near speakers playing boat noise while the other half were near speakers playing coral-reef ambient noise. Both success of embryonic development and post-hatching survival decreased by more than 20% as a consequence of exposure to boat-noise playback."

Co-author, Dr Andy Radford, a reader in behavioural ecology at the University of Bristol, said: "This is the first indication that noise pollution can affect development and survival during critical early life stages. Growing evidence for the impact of noise on animals suggests that consideration should be given to the regulation of human activities in protected areas."

The research is published today in Scientific Reports.


'/>"/>

Contact: Hannah Johnson
hannah.johnson@bristol.ac.uk
44-117-928-8896
University of Bristol
Source:Eurekalert

Related biology news :

1. Noise pollution impacts fish species differently
2. New idea for hearing improvement in patients with hearing aids under background noise
3. SU biologist develops method for monitoring shipping noise in dolphin habitat
4. The secrets of owls near noiseless wings
5. Assessing noise impact of offshore wind farm construction may help protect marine mammals
6. Now hear this: Scientists discover compound to prevent noise-related hearing loss
7. Boat noise stops fish finding home
8. Pitt team finds mechanism that causes noise-induced tinnitus and drug that can prevent it
9. A new method for measuring the flow of traffic a street has to bear by measuring atmospheric noise
10. Ship noise makes crabs get crabby
11. NOAA: Underwater noise decreases whale communications in Stellwagen Bank sanctuary
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/19/2017)... April 19, 2017 The global ... landscape is marked by the presence of several large ... held by five major players - 3M Cogent, NEC ... accounted for nearly 61% of the global military biometric ... in the global military biometrics market boast global presence, ...
(Date:4/13/2017)... SANTA MONICA, Calif. , April 13, 2017 /PRNewswire/ ... New York will feature emerging and ... Innovation Summits. Both Innovation Summits will run alongside the ... variety of speaker sessions, panels and demonstrations focused on ... east coast,s largest advanced design and manufacturing event will ...
(Date:4/11/2017)... , Apr. 11, 2017 Research and Markets ... 2017-2021" report to their offering. ... The global eye tracking market to grow at a CAGR ... Global Eye Tracking Market 2017-2021, has been prepared based on an ... the market landscape and its growth prospects over the coming years. ...
Breaking Biology News(10 mins):
(Date:9/14/2017)... ... September 14, 2017 , ... ... program (FSP)-- a flexible business approach similar to a full-time equivalent program ... project-based analytical and solid-state chemistry services and expertise with flexible extended research ...
(Date:9/14/2017)... ... September 14, 2017 , ... ... launch of its CliniControlâ„¢ (CC) product portfolio, clinically-relevant starting and ancillary materials ... of human Mesenchymal Stem/Stromal Cell (hMSC)-based therapies. The CliniControl product portfolio will ...
(Date:9/14/2017)... ... September 14, 2017 , ... AxioMed is pleased to announce ... Steven Yang completed the procedure on a 35-year-old female patient suffering from degenerative ... at level L5-S1. The patient failed conservative treatments prior to undergoing surgery. , ...
(Date:9/14/2017)... ... , ... AIM Global, the worldwide standards agency for AIDC and barcode technology ... Study Competition for AIDC. The award is given to those in the industry ... adoption of automated data collection systems further. The TRACTUS platform, by Matrix, is ...
Breaking Biology Technology: