Ingestion rate estimated from food concentration and predatory role of copepod nauplii in the microbial food web of temperate embayment waters.

ABSTRACT: To quantitatively evaluate the role of copepod nauplii as predators in the microbial food web, the ingestion rate (IR) of copepod nauplii and the food requirement (FR) of microzooplankton were estimated monthly for 3 consecutive years in temperate embayment waters. The IR of dominant copepod nauplii (Acartia spp. nauplii) was estimated from water temperature, individual carbon weight and food concentration and peaked (>0.50 μgC ind^-1 d^-1) with relatively high food concentration (>57.5 μgC L^-1). This result suggests that food concentration should be considered to estimate copepod naupliar IR in marine environments, especially where biological conditions fluctuate largely. The comparison of copepod naupliar and microprotozoan FR showed the dominance of

SUBMITTER: Sugai Y 

PROVIDER: S-EPMC10066810 | biostudies-literature | 2023 Mar-Apr

REPOSITORIES: biostudies-literature