Melatonin, a hormone secreted by the pineal gland is preesnt in the semen and melatonin binding sites have been demonstrated on the plasma membrane of sperm. These observations suggest a possible modulatory role of ...

Growth, reproduction and mortality of the snakehead, Ophicephalus striatus Bloch, inhabiting the Muthurajawela swamp, a low pH environment in Sri Lanka, were studied using monthly samples collected by angling and indigenous ...

Based on external and internal morphology, osteology and morphometries the seven species of Paralonchurus Bocourt are grouped into two subgenera, Paralonchurus and Polyclemus. The monotypic Ionchurus Bloch was more similar ...

The goal of this study was to investigate the effects of crude extract of a Sri Lankan marine sponge, Spongionefla sp. on the motility of human spermatozoa in vitro. The solvent system used for the extraction was ...

For the expansion of the exploitation of resources in the near shore and off shore waters of Sri Lanka, three classes of fishing vessels (80 gillnetters of 11m., 10 trawlers of 11m. and two combination vessels of 21m.) ...