Effects of age, salinity and temperature on the metamorphosis and survival ofCapitulum mitellacyprids (Cirripedia: Thoracica: Scalpellomorpha)
| Autor: | Gang Lin, Xiaozhen Rao |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
biology Scalpellomorpha 010604 marine biology & hydrobiology media_common.quotation_subject Intertidal zone Mitella Zoology Aquatic Science biology.organism_classification Capitulum mitella 010603 evolutionary biology 01 natural sciences Salinity Barnacle Thoracica Metamorphosis media_common |
| Zdroj: | Journal of the Marine Biological Association of the United Kingdom. 100:55-62 |
| ISSN: | 1469-7769 0025-3154 |
| Popis: | Capitulum mitellais a tropical/sub-tropical intertidal barnacle of high economic value. However, no studies have yet focused on the effects of the extrinsic and intrinsic factors that affect the metamorphosis of this species. The current study stored cyprids at room temperature (24–26°C) and low temperature (7°C) and then compared the effects of age and storage temperature on cyprid metamorphosis. The effects of salinity and temperature on cyprid metamorphosis and survival were examined. Results showed the following. (1) Young 0-day cyprids were not competent to metamorphose, andC. mitellacyprids had a pre-competent phase. (2) The cyprid metamorphosis percentage at different storage temperatures with the same age was higher at room temperature than at 7°C. Low temperature storage of cyprids appeared to be unsuitable forC. mitella. The ideal storage time at room temperature for cyprids was 3–5 days. (3) The cyprids could complete metamorphosis at a salinity range of 20–45 mg l−1, and the optimum salinity range for metamorphosis was 25–35 mg l−1. At 15 mg l−1salinity, the cyprids could survive but failed to metamorphose. (4) The cyprids could survive and complete metamorphosis at 18–36°C, and the optimum temperature range for metamorphosis was 21–33°C. The metamorphosis ofC. mitellacyprids can tolerate a wide spectrum of salinity and temperature, which is related to the distribution location, habitat environment and lifestyle. Results of this study may provide a basis for the settlement biology, recruitment ecology and aquaculture of this species. |
| Databáze: | OpenAIRE |
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