| Registro completo |
| Provedor de dados: |
OMA
|
| País: |
Belgium
|
| Título: |
A re-evaluation of marine nematode productivity
|
| Autores: |
Vranken, G.
Herman, P.M.J.
Vincx, M.
Heip, C.H.R.
|
| Data: |
1986
|
| Ano: |
1986
|
| Palavras-chave: |
Biological production
Mathematical models
Meiobenthos
Nematoda [Nematodes]
|
| Resumo: |
Nematodes are the most abundant multicellular animals in marine sediments but their role in the benthos has not been properly quantified yet. In nearly all energy-flow budgets of marine systems their annual production P is given as about nine times their biomass B and their part in the total energy-flow is consequently estimated as anywhere between 3 and 30% of the total (carbon) input in the benthic system. Our laboratory experiments demonstrate that nematode productivity is much higher than P/B ~ 9 per year and may reach values of over 60 for bacterial grazers. To obtain more reliable estimates for field populations we propose a regression equation relating egg-to-egg development time T<sub>min</sub> to temperature (t) and adult female weight (W in µg wet weight):log T<sub>min</sub> = 2.202-0.0461 t + 0.627 log W. When multiplied by the constant biomass turnover per generation (P/B)<sub>gen</sub> = 3, development rate 1/T<sub>min</sub> is a good predictor of daily P/B. This method was applied to two series of field data. A rather stable community from a sublittoral mud in the North Sea had an annual P/B = 20. A less stable Aufwuchs community from <i>Sargassum</i> in Japan had an annual P/B = 58.
|
| Tipo: |
Info:eu-repo/semantics/article
|
| Idioma: |
Inglês
|
| Identificador: |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3576
|
| Fonte: |
%3Ci%3EHydrobiologia+135%3C%2Fi%3E%3A+193-196
|
| Direitos: |
info:eu-repo/semantics/restrictedAccess
|
