Food concentrations on Georges Bank: non-limiting effect on development and survival of laboratory rearedPseudocalanussp. andParacalanus parvus(Copepoda: Calanoida)
✍ Scribed by C. S. Davis
- Publisher
- Springer-Verlag
- Year
- 1984
- Tongue
- English
- Weight
- 525 KB
- Volume
- 82
- Category
- Article
- ISSN
- 0025-3162
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✦ Synopsis
Laboratory and field studies were used to show that development rate and survival of the copepods Pseudocalanus sp. and Paracalanus ?arvus are generally not food limited on Georges Bank. Copepods were reared in the laboratory at a series of phytoplankton concentrations (25 to 200/~g carbon 1-1) spanning the range of particulate carbon and nitrogen measured on Georges Bank in October, 1978 and February, 1979. Pseudocalanus sp. and P. parvus were reared at 5 ~ and 12~ respectively. Development rate and survival in both species were not affected at Georges Bank food concentrations but were reduced at lower food levels. Development times from hatching to adulthood was 60 to 70d for Pseudocalanus sp. and 25 to 30d for P. parvus.