Year: 1995
Type: article
Abstract: We compiled information from the literature on female and egg sizes and maximum egg production, growth and developmental rates in marine planktonic copepods.While specific growth and developmental rates are ~nvariant with body mass, weight-specific fecundity scales w ~t h female body mass-026 in both broadcast-spawning and egg-carrying copepods.Egg sizes increase with female size and, consequently, egg production rates (no. of eggs p-' d-') are constant with size.Developmental rates were similar among egg-carrying and broadcast-spawning copepods, but the latter grow faster by 30 to 50% and have we~ght-specific fecundities that are 2.5 times and egg production rates that are 7.5 times those of the former.Nauplii develop faster (by a factor of 2) but grow slower (by 20 to 40%) than copepodites in both spawning types.The main demographic implications of these findings are (1) that mortality is independent of body mass per se, ( 2 ) that sac spawners suffer higher overall mortality rates than broadcast spawners and (3) nauplii suffer higher mortality than copepodids.
Source: Marine Ecology Progress Series
DOI: 10.3354/meps120285
Authors: T Kiørboe, M Sabatini
Institution: Danish Centre for Marine Research
Language: English
Subfield: Oceanography
Field: Earth and Planetary Sciences
Domain: Physical Sciences
SDG: Life below water
Open Access status: bronze
OpenAlex ID: W2015682783