University of Tasmania
Research on Big Bellied Seahorse
(Hippocampus abdominalis)
Dr
John Purser, Co-ordinator of seahorse research, School of Aquaculture
Dr Purser has been working closely with Seahorse World since its
inception and has been researching various aspects of seahorse culture
since 1998 when he took over the co-ordination of the University's
work from Prof. Nigel Forteath. He has supervised 15 Masters and
PhD research projects some of which are described below. The main
focus of the research has been to increase our understanding of
seahorse culture and to solve problems as they have arisen, but
ultimately it is the welfare of the seahorses in an aquarium environment
which is important.
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Zhongyuan
Ouyang (2005): Effect of light intensity and photoperiod on the
locomotor activity of juvenile seahorses
Ouyang is from China and completed his Master of Applied Science
in Aquaculture in 2005. His project focused on how light intensity
and day-length affected the seahorse movement patterns within
the tanks. Seahorses are active during the day and are inactive
at night. Generally the fish are most active before feeding; if
there is an excess of food the activity levels are low while activity
remains high after feeding if not enough food is given. Light
intensities tested ranged from one to four fluorescent lights
about 30cm above each tank; fish behaved in a similar fashion
under every intensity. Total activity is higher in longer days.
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Leonardo
Martinez Cartinez (2002-2005): Optimising husbandry practices for
H. abdominalis
Leo is from Mexico and has an interest in the growing conditions
of new-born seahorses. For his PhD studies he has been researching
the environmental conditions and how these could be optimized to
ensure good growth and survival. Environmental conditions researched
include tank colour, salinity, temperature, substrate, density and
turbidity.
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