Egg development times of Eurytemora affinis and Pseudodiaptomus forbesi (Copepoda, Calanoida) from the upper San Francisco Estuary with notes on methods

Autor:	Wim J. Kimmerer, Lindsay J. Sullivan
Rok vydání:	2013
Předmět:	geography geography.geographical_feature_category Ecology biology Eurytemora affinis Hatching Estuary Aquatic Science biology.organism_classification Life stage Fishery embryonic structures Calanoida Ecology Evolution Behavior and Systematics Copepod Production rate
Zdroj:	Journal of Plankton Research. 35:1331-1338
ISSN:	1464-3774 0142-7873
Popis:	Egg development times (DTs) of copepods are used to scale DTs of life stages to temperature and to calculate egg production rate in sac spawners. Here, we report egg DTs at various temperatures for two copepod species from the upper San Francisco Estuary measured using video observations of individual egg sacs. The egg DTs (days) of Eurytemora affinis and Pseudodiaptomus forbesi were related to temperature (T, 8C) by DT 1⁄4 11.5e and DT 1⁄4 22.7e, respectively. Video observations decreased manpower requirements, increased the frequency of observations and provided more detailed observations of individual hatching patterns compared with historical techniques including direct observations and regression analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::523b43a6929b8fd148fd93fc91f8f0f5 https://doi.org/10.1093/plankt/fbt076 Zobrazit plný text záznamu