Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Cleaner shrimp use rocking dance to advertise their service to clients

26.04.2005


Using underwater field observations in conjunction with behavioral experiments, researchers have discovered that a small crustacean, the yellow-beaked cleaner shrimp, performs a specialized dance that affects the behavior of large, predatory client fish. This signaling represents shrimp-to-fish communication that allows both hungry cleaner shrimp and parasite-laden client fish to benefit from a non-predatory, "cleaning" interaction.


Photo Credit: Justine Becker Full size images available through contact.


Photo Credit: Justine Becker Full size images available through contact.



The cleaner-client relationship between the shrimp and the fish fulfills many criteria of an economic market, and in this context the shrimp’s signals essentially represent "advertising." The work is reported by Justine Becker and colleagues at the University of Queensland.

When unrelated animals cooperate, signals may be used by individuals to avoid potential conflicts. For example, during animal cleaning interactions, which involve a cleaner that removes parasites and other material from the body surfaces of cooperating individuals (known as clients), conflict may arise over the timing and duration of an interaction, over what the cleaner should feed on, or even over the temptation of some clients to eat the cleaner. Marine cleaning interactions are well known for highly stereotyped behaviors that most likely serve as signals.


For example, tactile dancing behavior used by cleaner fish enables them to avoid conflict with potentially dangerous clients. Cleaner shrimp also clean fish, yet they live in small caves and crevices on the reef and are not immediately visible to client fish. Signals, therefore, are likely to be essential for cleaner shrimp to attract potential clients.

In work now reported, Justine Becker and colleagues conducted field observations that revealed that the yellow-beaked cleaner shrimp uses a stereotypical side-to-side movement, or "rocking dance," when approaching potential client fish in the water column and that this dance is followed 100% of the time by a cleaning interaction with a client. They then manipulated the hunger levels of these cleaners to show that hungry cleaner shrimp, which are more willing to clean than satiated ones, spend more time rocking and in closer proximity to client fish than do satiated cleaner shrimp. In addition, hungry cleaner shrimp were approached more often by client fish than were satiated cleaner shrimp.

With these observations, Becker and colleagues were able to show that the rocking dance used by the yellow-beaked cleaner shrimp influenced the behavior of client fish and that this dance appears to function as a signal to advertise the presence of cleaner shrimp to potential clients.

Heidi Hardman | EurekAlert!
Further information:
http://www.current-biology.com
http://www.cell.com

More articles from Life Sciences:

nachricht Researchers uncover protein-based “cancer signature”
05.12.2016 | Universität Basel

nachricht The Nagoya Protocol Creates Disadvantages for Many Countries when Applied to Microorganisms
05.12.2016 | Leibniz-Institut DSMZ-Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

Im Focus: Molecules change shape when wet

Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water

In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

NASA's AIM observes early noctilucent ice clouds over Antarctica

05.12.2016 | Earth Sciences

Shape matters when light meets atom

05.12.2016 | Physics and Astronomy

Researchers uncover protein-based “cancer signature”

05.12.2016 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>