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Free Content Effects of Temperature on the Breeding of Kinbergonuphis Simoni (Polychaeta: Onuphidae)

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The present study experimentally elucidated the relationships between temperature and the breeding of Kinbergonuphis simoni which has a semi-continuous reproduction. Three temperature treatments, 16°, 23° and 30°C were used based on the correspondent temperature regimes of winter, spring and fall, and summer in Tampa Bay, Florida. Greater reproductive output, better juvenile and adult survival, and larger emerging juveniles all occurred at median (23°C) rather than at low (16°C) or high (30°C) temperatures. The effects of high and low temperatures were different; high temperature determined survivorship, while low temperatures influenced reproductive success. The breeding seasonality observed in the field population is explained by the stenothermal responses of the worms in growth, reproduction and survival.

Document Type: Research Article

Publication date: March 1, 1991

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