Navigation Links
Researchers study acoustic communication in deep-sea fish

RICHMOND, Va. (Sept. 24, 2008) An international research team studying sound production in deep-sea fishes has found that cusk-eels use several sets of muscles to produce sound that plays a prominent role in male mating calls.

These findings, published online today in the Royal Society journal, Biology Letters, may help researchers gain further insight into acoustic communication in the deep sea and the role of sound in fish behavior.

Virginia Commonwealth University Life Sciences biologists Michael L. Fine, Ph.D., Kim Nguyen and Hsung Lin, both graduate students at VCU, together with Eric Parmentier at the Universit de Lige in Belgium, examined the sonic muscles of the fawn cusk-eel, Lepophidium profundorum, a species found in the Atlantic Ocean.

"Little is known about acoustic communication in the deep sea because of the difficulties of observing fish in this habitat. Based on anatomy, ophidiid fishes, or cusk-eels, are likely one of the chief sound producers. They have unusual sonic muscles that occur in antagonistic pairs and are typically larger in males," said Fine, a professor in the VCU Department of Biology.

Many fish use an organ known as a swim bladder to produce sound. According to Fine, the fawn cusk-eel uses two muscle pairs to pivot a modified rib, 'the wing-like process,' forward. This action stretches the swim bladder. An antagonistic muscle pair then restores the swim bladder to its original position.

In previous work outside of the mating season, they found that the tiny intermediate muscle of the fawn cusk-eel was larger in females, which was quite surprising since male fish are usually more vocal than females, said Fine.

The research team obtained the fish during the summer mating season and found that intermediate muscle weight increased four fold and had become heavier in males than in females.

"Our findings suggest that the intermediate muscle likely assumes a prominent role in sound production of male mating calls and suggest that male sex hormones cause the muscle to grow," he said.

According to Fine, fishes make sounds for different reasons, but the two most common types of sounds are made for courtship and agonistic behaviors.


Contact: Sathy Achia Abraham
Virginia Commonwealth University

Related biology news :

1. Researchers note differences between people and animals on calorie restriction
2. Researchers find an essential gene for forming ears of corn
3. Researchers find animal with ability to survive climate change
4. NC State researchers get to root of parasite genome
5. UC Davis researchers discover new drug target for inflammatory disease
6. Pittsburgh researchers identify source of multipotent stem cells with broad regenerative potential
7. U of M researchers identify gene linked to common ailment in labrador retrievers
8. Friendly bacteria protect against type 1 diabetes, Yale researchers find
9. Using novel tool, UD researchers dig through cell trash and find treasure
10. More than skin deep: Theres no such thing as a safe suntan, researchers warn
11. Flatworm helps researchers study stem cells and cancer
Post Your Comments:
(Date:11/20/2015)... -- NXTD ) ("NXT-ID" or the "Company"), ... commerce market and creator of the Wocket® smart wallet, ... interviewed on The RedChip Money Report television ... Bloomberg Europe , Bloomberg Asia, Bloomberg Australia, and ... ) ("NXT-ID" or the "Company"), a biometric authentication company ...
(Date:11/19/2015)... -- Although some 350 companies are actively involved in molecular ... according to Kalorama Information. These include Roche Diagnostics, Hologic, Abbott ... of the 6.1 billion-dollar molecular testing market, according to ... Diagnostic s .    ... one company and only a handful of companies can ...
(Date:11/18/2015)... , November 18, 2015 ... published a new market report titled  Gesture Recognition Market ... Forecast, 2015 - 2021. According to the report, the global gesture ... is anticipated to reach US$29.1 bn by 2021, at ... North America dominated the global ...
Breaking Biology News(10 mins):
(Date:11/25/2015)... 2015 Studies reveal the differences ... and pave the way for more effective treatment for one ...   --> --> ... problems in cats, yet relatively little was understood about the ... have been conducted by researchers from the WALTHAM Centre for ...
(Date:11/25/2015)...  Neurocrine Biosciences, Inc. (Nasdaq: NBIX ) announced ... of Neurocrine Biosciences, will be presenting at the 27th ... York . .   ... minutes prior to the presentation to download or install ... be available on the website approximately one hour after ...
(Date:11/25/2015)... ... November 25, 2015 , ... A long-standing partnership between ... (OPBAP) has been formalized with the signing of a Memorandum of Understanding. , ... leaders Capt. Karl Minter and Capt. Albert Glenn Tuesday, November 24, 2015, at ...
(Date:11/25/2015)... , November 25, 2015 ... Report is a professional and in-depth study on ...      (Logo: ) , ... the industry including definitions, classifications, applications and industry ... for the international markets including development trends, competitive ...
Breaking Biology Technology: