About My Health Careers Internship MedBlogs Contact us
Medindia LOGIN REGISTER
Advertisement

Fish can Remember Things Even 12 Days Later

by Bidita Debnath on July 3, 2014 at 7:30 PM
Font : A-A+

 Fish can Remember Things Even 12 Days Later

It turns out that the aquatic creatures are smarter than we think and can recall context and associations even 12 days later, contrary to the belief that fish have a memory span of 30 seconds.

According to the Canadian scientists, who studied African Cichlids, a popular aquarium species, fish demonstrate several complex behaviours, including aggression, causing the scientists to predict that they could be capable of advanced memory tasks.

Advertisement

In the study, each fish was trained to enter a particular zone of the aquarium to receive a food reward, with each training session lasting twenty minutes. After three training days, the fish were given a twelve day rest period, and were then reintroduced into their training arena and their movements recorded with motion-tracking software.

The cichlids preferred the area where the food reward was given, suggesting that they recalled the previous training experiences. Furthermore, the fish were able to reverse this association after further training sessions where the food reward was associated with a different stimulus.
Advertisement

Lead scientist Dr Trevor Hamilton said that fish that remember where food is located have an evolutionary advantage over those that do not, and if they were able to remember that a certain area contains food without the threat of a predator, they will be able to go back to that area. Decreases in the availability of food would promote the survival of species that can remember the location of food sources.

The researchers are now investigating whether the strength of fish memories are affected by environmental conditions or pharmacological drugs.

Source: ANI
Advertisement

Advertisement
News A-Z
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
News Category
What's New on Medindia
Printed Temperature Sensors help with Continuous Temperature Monitoring
Health Benefits of Giloy
Breast Cancer Awareness Month 2021 - It's time to RISE
View all

Medindia Newsletters Subscribe to our Free Newsletters!
Terms & Conditions and Privacy Policy.

More News on:
Fish Health Benefits Fish: The Best and The Worst Seven Surprisingly Healthy Foods Health Benefits of Tuna Fish 

Recommended Reading
Electric Eel's Genome may Help Reveal How Fishes With Electric Organs Evolved
The genome of the electric eel has been sequenced by researchers, which has revealed how fishes ......
Study Finds Fish are as Smart as Apes
A fish's cognition and sensory perception are on the same level as that of other animals...
Shocking Truth About Electric Fish Found by Scientists
Regulatory molecules involved in the pathways that electric fish have used to convert a simple ......
Fish-Eating Spiders Found All Over the World
Zoologists reveal that rather than being limited to eating insects, spiders that prey on fish are .....
Fish Health Benefits
Fish is one of the staple food of coastal inhabitants. Nutrition in fish includes protein, calcium a...
Fish: The Best and The Worst
Some fish are contaminated with high levels of methyl mercury. Methyl mercury is a neurotoxin, which...
Health Benefits of Tuna Fish
Tuna, a low glycemic index (GI) food, is rich in selenium, niacin, Vitamin (B12, B6), protein. It pr...
Seven Surprisingly Healthy Foods
Here are some food items whose health advantage may come as a surprise to you....

Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

© All Rights Reserved 1997 - 2021

This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use