A study on the rate of water transport of the clam katelysia opima in relation to environmental conditions |
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Authors: | U. H. Mane |
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Affiliation: | 1. Department of Zoology, Marathwada University, Aurangabad, India
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Abstract: | - The neutral red technique was employed to study the rate of filtration in Katelysia opima.
- The weight specific water filtration was found to be greater for younger clams compared to the older ones.
- The rate of water filtration increased with decreasing salinity.
- Water filtration was found to increase as temperature increased, reaching a maximum at 35°C. but then sharply decreasing at 39°C.
- Light had no significant effect on the rate of filtration.
- Suspended matter was found to affect the rate of water filtration.
- The rate of filtration was low at high pH and high in low pH.
- The rate of water filtration was found to be faster during high tide than during low tide.
- The presence of the parasitic crab, Pennotheris sp., in the mantle cavity of clams had a marked effect on the particle filtration.
- Accidental cut of the siphon tips had no effect on the rate of filtration.
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