Navigation Links
Fish weight-watchers
Date:6/14/2011

Telling your partner to watch her weight is not recommended-unless you're a male cleaner fish, reports a new study in Proceedings of the Royal Society B.

Cleaner fish feed in male-female pairs by removing parasites from larger 'client' fish. While providing this cleaning service, cleaners may get greedy and bite clients rather than sticking to parasites. This cheating by cleaners causes mealtimes to come to an abrupt end as the disgruntled client fish swims off. Females that bite clients receive aggressive punishment from their male partners for such greedy behaviour.

Scientists from the Zoological Society of London (ZSL) and a number of other leading scientific institutions have now shown that male fish lose more than just a meal from their partner's big appetite they also risk the female becoming so large that she will turn into a rival male.

Cleaner fish live in groups led by one dominant male with a harem of up to 16 females. All cleaner fish are born female and turn into males when they become the biggest fish in their group. A male cleaner fish usually partners with the biggest female fish in the harem for cleaning duties.

"Our research shows that male cleaner fish are sensitive to their female partner's size. One reason for keeping a cheating female in check may be to stop her eating too much and then challenging his position as the dominant male on the reef," says Dr Nichola Raihani, lead author from ZSL.

The research also shows that the male cleaner fish distinguish between high and low value meals and will punish the female more severely if she drives off a high-value client.

The female fish will respond to this punishment by providing better service to high value clients in the future. This is the first non-human example of where punishment fits the crime and results in the offender adjusting their behaviour according to the potential penalties.

Dr Nichola Raihani says: "Clea
'/>"/>

Contact: Victoria Picknell
victoria.picknell@zsl.org
44-207-449-6361
Zoological Society of London
Source:Eurekalert

Page: 1 2

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)...  The 2014 Holiday Season may be the brightest ever ... that the long anticipated floodgates for consumer biometrics may ... smart phones, tablets, and wearable mobile devices that incorporate ... users with nearly 4.8 billion biometric devices by 2020.   ...
(Date:12/19/2014)... VEGAS , Dec. 18, 2014   LaunchKey , ... for the post-password and Internet of Things era, today ... funding. The venture round was led by Metamorphic Ventures ... Rimrock Venture Partners, VegasTechFund, and others.  LaunchKey has raised ...
(Date:12/17/2014)... , Dec. 16, 2014 Valencell, a leader ... PerformTek biometric technology to industry leaders such as Intel, ... clinically validated, biometric wearable products. These products will be ... Las Vegas . ...
Breaking Biology News(10 mins):First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2
... variety of canary seeds bred specifically for human consumption qualifies ... with celiac disease (CD), scientists have confirmed in a study ... . Joyce Irene Boye and colleagues point out ... alone have CD. They develop gastrointestinal and other symptoms from ...
... A Cornell University study offers further proof that the divergence ... years ago was profoundly influenced by mutations to DNA sequences ... The study, published June 9 in Nature Genetics , ... must play an important role in evolution since there is ...
... June 19, 2013 Elsevier, a world-leading provider of scientific, ... announce the launch of a new open access journal, ... , Elsevier,s earth and planetary science journals portfolio has its ... a forum for rapid publication of top research within the ...
Cached Biology News:New research backs theory that genetic 'switches' play big role in human evolution 2New research backs theory that genetic 'switches' play big role in human evolution 3
(Date:1/22/2015)...   GenoSpace , a precision medicine software company that has ... use of genomic, imaging and other biomedical data in research ... Munson , CEO of Aspera, an IBM Company, to its ... http://photos.prnewswire.com/prnh/20150122/170713 "We are pleased to welcome ...
(Date:12/25/2014)... December 25, 2014 The report “Service ... Product Type & Provider Type - Global Advancements, Worldwide ... with an in-depth analysis and forecasting of revenues. ... through 221 pages and in-depth TOC on “Service Quality ...
(Date:12/24/2014)... YORK , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, Inc. ... critical areas, announced the closing of an underwritten public offering ... up to an aggregate 3,500,000 shares of common stock, at ... warrant.  The warrants have a per share exercise price of ...
(Date:12/24/2014)... , Dec. 24, 2014   BioLife Solutions , Inc. ... marketer of proprietary clinical grade hypothermic storage and ... products for cells and tissues  ("BioLife" or the "Company"), ... of Stockholders on May 4, 2015 (the "Annual Meeting"). ...
Breaking Biology Technology:GenoSpace Expands Board with Appointment of Michelle Munson 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 2Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 3Service Quality Management Market worth $2.1 Billion & Telco Customer Experience Management Market worth $2.3 Billion by 2019 – New Report by MarketsandMarkets 4PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3BioLife Solutions Sets Date for Annual Meeting of Stockholders 2
... , , , , ... of purifying amplicons as small as 100bp. AMPure yields high quality PCR , ... or filtration steps. The protocol can be easily automated or performed , ... , EFFICIENT PCR PURIFICATION ...
... , , , , Here are some troubleshooting hints that we have gathered , ... , , , , ... <a , href="#Option4">Primer annealing temperature is too low ... , , ...
... , , , , , , ... PCR primers , that are specific for that mRNA sequence. The ... of cDNA and an amplified , product derived from contaminating genomic ... (see figure below). , , , , , ...
Cached Biology Technology:AMPURE PURIFICATION SYSTEM 2AMPURE PURIFICATION SYSTEM 3Trouble-shooting: Smeared bands 2Trouble-shooting: Smeared bands 3Trouble-shooting: Smeared bands 4Trouble-shooting: Smeared bands 5
Functionally tested for consistent G-banding of chromosomes....
... optimized for serum-free growth of Ready-Plaque Sf9 ... medium, Sf9 cultures routinely reach densities greater ... above 95%. This medium is also recommended ... staining of pBACgus recombinants develops faster than ...
... is formuatled for the growth of ... Sf21 cells. Grace's Insect Mediu, Unsupplemented ... does not contain lactalbumin hydrosylate, and ... Grace's Insect Medium, Supplemented is formulated ...
TNM-FH Insect Medium 1 liter...
Biology Products: