1. There were obviously seasonal variation of polychaete quantity.

2. To obtain a deeper insight into the polychaete systematics, increased sampling of representative taxon is promising for the investigation of their morphology, life history and molecular phylogeny.

3. Polychaete Capitella capitata is an excellent indicator of polluted environment and attracted the attention of marine scientists.

4. Survey was carried out on polychaete verminosis in cultured pearl oyster ( Pteria penguin ) in Liusha Bay.

5. The species diversity in dices of polychaete in Minnan-Taiwan Shoal Fishing Ground are low.

6. The tides effect on the vertical distribution of polychaete was not obvious.

7. Instead, in addition to coral polyps and sea- anemones , polychaete and sipuncula are possibly its major food source.

8. The changes in the activity of SOD can better reflect the toxic effects of pollutants on the polychaete.

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9. The left-shell of Pteria penguin reared in cone cage was liable to infection of polychaete verminosis.

10. These characteristics depend on the types of sediment, which in investigating area is coarse and polychaete does not fit to breed largely.