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http://hdl.handle.net/1834/956
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| Title: | Combined Effects of Temperature and Salinity on Larval Development of the Mangrove Crab Parasesarma catenata Ortman, 1897 (Brachyura: Sesarmidae) |
| Authors: | Mwaluma, J.
Nogueira Mendes, R.
Raedig, C.
Emmerson, W.
Paula, J. |
| ASFA Terms: | Mangroves
Crab culture
Salinity
Temperature |
| Issue Date: | 2003 |
| Publisher: | WIOMSA |
| Citation: | Western Indian Ocean J. Mar. Sci., 2 (1), p. 57-63 |
| Abstract: | The larval stages of the mangrove crab Parasesarma catenata were reared in the
laboratory from eggs of females collected in the Mgazana estuary, South Africa. Survival and
duration of larval stages were tested for the combined effects of temperature and salinity in a
factorial design experiment, using three females each with two replicates of 15 larvae per
combination. Combinations were made from five temperature (15, 20, 25, 30 and 35 ºC) and
four salinity values (15, 25, 35 and 45 ‰). Results were tested by ANOVA and multiple regression
was applied to generate contour models by polynomial equation. It was found that P. catenata
larvae develop optimally in near to seawater salinity at a temperature of around 25 ºC. These
results support the assumption that newly-hatched larvae of this species are exported from the
estuarine environment to the sea for development. |
| URI: | http://hdl.handle.net/1834/956 |
| ISSN: | 0856-860X |
| Appears in Collections: | Miscellaneous
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