Navigation Links
Fishes Use Threat of Punishment in Mating Process

Australian marine scientists has found that fishes use the threat of punishment to keep would-be jumpers in the mating queue firmly in line and the social order stable.

Their discovery, which has implications for the whole animal kingdom including humans, has been hailed by some of the worlds leading biologists as a must read scientific paper and published in the Proceedings of the Royal Society of London Series B.

Studying small goby fish at Lizard Island on Australias Great Barrier Reef, Dr Marian Wong and colleagues from the ARC Centre of Excellence for Coral Reef Studies at James Cook University and, the Biological Station of Donana, Spain, have shown the threat of expulsion from the group acts as a powerful deterrent to keep subordinate fish from challenging those more dominant than themselves.

In fact the subordinate fish deliberately diet - or starve themselves - in order to remain smaller than their superiors and so present no threat that might lead to their being cast out, and perishing as a result.

Many animals have social queues in which the smaller members wait their turn before they can mate. We wanted to find out how they maintain stability in a situation where youd expect there would be a lot of competition, says Dr Wong.

In the case of the gobies, only the top male and top female mate, and all the other females have to wait their turn in a queue based on their size the fishy equivalent of the barnyard pecking order.

Dr Wong found that each fish has a size difference of about 5 per cent from the one above and the one below it in the queue. If the difference in size decreases below this threshold, a challenge is on as the junior fish tries to jump the mating queue and the superior one responds by trying to drive it out of the group.

Her fascinating discovery is that, in order to avoid constant fights and keep the social order stable, the fish seem to acc ept the threat of punishment and adjust their own size in order to avoid presenting a challenge to the one above them, she says.

Social hierarchies are very stable in these fish and in practice challenges and expulsions are extremely rare probably because expulsion from the group and the coral reef it occupies means almost certain death to the loser.

It is clear the fish accept the threat of punishment and co-operate as a way of maintaining their social order and thats not so very different to how humans and other animals behave.

Dr Wong said that experimentally it has always proved extremely difficult to demonstrate how higher animals, such as apes, use punishment to control subordinates and discourage anti-social activity because of the difficulty in observing and interpreting their behaviour.

In the case of the gobies the effect is much more apparent because they seek to maintain a particular size ratio relative to the fish above them in the queue, in order not to provoke a conflict.

The gobies have shed new light on our understanding of how social stability is maintained in animals, she says.

While it not be accurate to draw a direct link between fish behaviour and specific human behaviour, it is clear there are general patterns of behaviour which apply to many higher life forms, ourselves included. These help us to understand why we do the things we do.


'"/>




Related medicine news :

1. Cure For Deafness Leads Scientist To Find How Fishes Can Hear And Hum Sounds At Same Time
2. Is Smallpox Threat Real ?
3. WHO To Support Public Health Threats
4. Food May Trigger Life-Threatening Asthma
5. New Virus : A Threat In the Future?
6. Tsunami Survivors Face Pneumonia Threat
7. The Use Of Invasive Treatment For Life Threatening Heart Conditions Questioned
8. Baking Soda Treatment for Life-Threatening Asthma
9. Ethiopian Children Face Threat From Malnutrition
10. Pigs Population A Major Threat To Encephalitis Ravaged UP
11. Winter Premature Babies Face Threat From Lung Disease
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/24/2016)... ... June 24, 2016 , ... ... induced pluripotent stem (iPS) cells and other difficult to transfect cells, announces its ... The PluriQ™ G9™ Gene Editing System is a complete system for ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... management skills and infrastructure. Most providers, however, are unsure how to move forward, ... Ascend to define a path forward tailored to an organization’s specific needs. ...
(Date:6/24/2016)... ... 24, 2016 , ... SpiritQuest Sedona Retreats, located in Arizona has re-located to ... vortex sites: Cathedral Rock, Airport Mesa, and Boynton Canyon. The new retreat center ... as well as the Sedona Rouge, both popular accommodations for SpiritQuest clients. The ...
(Date:6/23/2016)... ... June 23, 2016 , ... An article published June 8 on ... head and neck cancer in individuals with unhealthy oral hygiene habits. The article goes ... whether they had gum disease, brushed their teeth on a daily basis, wore dentures ...
(Date:6/23/2016)... , ... June 23, 2016 , ... ... today announced SentinelSecure™, its containerized mobile security software, is featured in the current ... online community that identifies leading companies with innovative technology solutions and features them ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... Capricor Therapeutics, Inc. ... company focused on the discovery, development and commercialization ... in its ongoing randomized HOPE-Duchenne clinical trial (Halt ... its 24-patient target. Capricor expects the trial to ... 2016, and to report top line data from ...
(Date:6/23/2016)... BOGOTA, Colombia , June 23, 2016  Astellas today announced the establishment of Astellas Farma Colombia ... the company,s second affiliate in Latin America . ... ... Farma Colombia ... ...
(Date:6/23/2016)... Tenn. , June 23, 2016 /PRNewswire/ ... automating, integrating and transforming the patient payment ... of several innovative new products and services ... of its revenue cycle offerings. These award-winning ... more efficient workflows, remain compliant in an ...
Breaking Medicine Technology: