1. Mangrove killifish (Kryptolebias marmoratus): does behavior influence size?
Krish Lewis
Dept. of Biodiversity & Conservation Biology
University of the Western Cape
P. Bag X17, Bellville 7535, RSA

2. What are they? Description (www.milvertz.dk)
Mangrove killifish (Kryptolebias marmoratus): does behavior influence size?
Description
Hemaphrodite:
Individuals which have both
Sex organs present
The mangrove killifish (Kryptolebias marmoratus) is the only vertebrate animal able to undergo internal self fertilization and have viable offspring (Rhee et al 2010). (
What are they?
Mangrove Killifish (Kryptolebias Marmoratus): does behaviour influence size? 23/02/2011 Krish Lewis

3. Objective Suitability to the study The Fish to be used
Mangrove killifish (Kryptolebias marmoratus): does behavior influence size?
Suitability to the study
The Fish to be used
Although they are the same age they are different sizes
Also have different levels of “Bravery” or “Adventurism”
Objective
Mangrove Killifish (Kryptolebias Marmoratus): does behaviour influence size? 23/02/2011 Krish Lewis

4. Key Observations Research question:
Mangrove killifish (Kryptolebias marmoratus): does behavior influence size?
Research question:
Shyer fish forage food less readily, thus have slower growth rate
Hypothesis:
The larger the fish the more willing it would be to move into open water in order to feed.
Key Observations
Mangrove Killifish (Kryptolebias Marmoratus): does behaviour influence size? 23/02/2011 Krish Lewis

5. Mangrove killifish (Kryptolebias marmoratus): does behavior influence size?
Material and Methods
Mangrove Killifish (Kryptolebias Marmoratus): does behaviour influence size? 23/02/2011 Krish Lewis

6. Mangrove killifish (Kryptolebias marmoratus): does behavior influence size?
I Acknowledge Dr. Knight for his assistance and feed back with this project.
Acknowledgements
Mangrove Killifish (Kryptolebias Marmoratus): does behaviour influence size? 23/02/2011 Krish Lewis

7. References
K. Cole & D.L.G. Noakes Gonadal development and Sexual Allocation in Mangrove Killifish, Rivulus Marmoratus (Pisces: Antherinomorpha). Copeia. 3: 596 – 600
K. Hill Rivulus Marmoratus. Smithsonian Marine Station. [internet].{cited: 11/02/11} available from:
(Killifish image)
Rhee J, Kim R, Seo JS, Kang HS, Park C, Soyano K, Lee J, Lee Y, Lee J Comparative Biochemistry and Physiolog, Part C. 152:
Mangrove Killifish (Kryptolebias Marmoratus): does behaviour influence size? 23/02/2011 Krish Lewis