On the life history of Centropages typicus: Responses to a fall diatom bloom in the New York Bight

S. L. Smith, P. V.Z. Lane

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Laboratory studies and field collections show that egg production by Centropages typicus (Krøyer) in New York shelf waters in autumn 1984 responded to both food and temperature. Rates of egg production were high (43 to 76 eggs female-1 d-1) in October, early in the fall diatom bloom. Later, although food concentrations remained high and female size actually increased, egg production declined, presumably in response to seasonally decreasing temperatures. Carnivorous diets did not support egg production. Development time for autumn-hatched C. typicus was 33 d at 15°C, a rate that gives a Q10 of 2.21 when compared with the spring development rate of 49 d at 10°C. We could find no evidence of physiological adjustments being made by this copepod for overwintering. Development was not arrested at any subadult stage and resting eggs were not produced. Trends in body size of copepodid stage V, however, suggest that an overwintering strategy may be invoked by this copepod in Junuary or February.

Original languageEnglish (US)
Pages (from-to)305-313
Number of pages9
JournalMarine Biology
Volume95
Issue number2
DOIs
StatePublished - Jul 1 1987

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science
  • Ecology

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