Production of Tachidius discipes (Copepoda: Harpacticoida)
Herman, P.M.J.; Heip, C.H.R.; Guillemijn, B. (1988). Production of Tachidius discipes (Copepoda: Harpacticoida), in: Heip, C.H.R. et al. (Ed.) Collected papers on meiofauna dynamics and energy flow. pp. 1-8 In: Heip, C.H.R. et al. (Ed.) (1988). Collected papers on meiofauna dynamics and energy flow. Delta Institute for Hydrobiological Research: Yerseke. , more |
| Keywords | Biological production > Secondary production
Tachidius (Tachidius) discipes Giesbrecht, 1881 [WoRMS]
Marine/Coastal; Brackish water |
| Authors | | Top | - Herman, P.M.J., more
- Heip, C.H.R., more
- Guillemijn, B.
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| Abstract | The secondary production of the harpacticoid copepod Tachidius discipes Giesbrecht 1881 was estimated during spring 1979. The population was sampled every 3 d. Three generation peaks were observed. These were clearly distinct in the first copepodite stages, but gradually showed more overlap in older stages. Production of copepodites and adults was estimated in 2 ways: (1) Peaks were separated and the forward shifting of peaks in consecutive stages was used to estimate stage durations; (2) the size frequency method was applied. Both estimates of the production of copepodites and adults are in good agreement: 1.10 g dwt m-2 and 1.02 g dwt m-2. Egg production amounts to 0.31 g dwt m-2; naupliar production is roughly estimated at 1.11 g dwt m-2. The production efficiency, P/(P+R), of copepodites and adults is 0.36; for the total population it is 0.43. This value corresponds well to the value estimated from culture experiments with this population. |
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