Effects of different feed types and light intensity levels on the growth and reproduction of clam shrimp, Cyclestheria hislopi (Baird, 1859)
Clam shrimp (a Phyllopod order conchostraca) is a freshwater crustacean belonging to the subclass of Branchiopoda. It possesses a bivalve carapace, inhabit mainly the benthos but can swim freely in water column. Cyclestheria hislopi is the only species that has been reported to be found in perman...
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| Format: | Project Paper Report |
| Language: | English |
| Published: |
2012
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| Online Access: | http://psasir.upm.edu.my/id/eprint/79279/1/FP%202012%20102%20IR.pdf http://psasir.upm.edu.my/id/eprint/79279/ |
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| Summary: | Clam shrimp (a Phyllopod order conchostraca) is a freshwater crustacean belonging
to the subclass of Branchiopoda. It possesses a bivalve carapace, inhabit mainly the
benthos but can swim freely in water column. Cyclestheria hislopi is the only species
that has been reported to be found in permanent water body. The objective of this
study was to determine the effects of different types of feed and different levels of
light intensity on the growth and reproduction of Cyclestheria hislopi. Three types of
feed (artificial fined powdered diet, microalgae Scenedesmus sp. and microalgae
Chlorella sp.) were used for the feeding experiment. Five levels of light intensity (0,
15, 30, 45, and 60 μmol m-2 s-1) were used for the light intensity experiment.
Cyclestheria hislopi showed the best growth and reproduction when fed with
Chlorella sp. and when were kept under the lowest light intensity. This study
illustrated that Cyclestheria hislopi prefered small sized microalgae as its food and
tend to live in subdued light condition. It is important to understand the optimum
condition for clam shrimp to grow and reproduce so that culturing of this species for
use in aquaculture can be successful. |
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