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Ponderal production ofTubifex tubifexMüller andLimnodrilus hoffmeisteriClaparède (Oligochaeta, Tubificidae), benthic cohabitants of an artificial lake

Giuliano Bonomi

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Abstract

An attempt was made to estimate the main demographic parameters in two populations of the tubificids T. tubifex and L. hoffmeisteri. The eggs and worms were counted and the individual weights measured in adequate sub-samples. It was possible to subdivide each population into four groups: eggs and embryos (E), young (G1), young and regressed adults (G2), adults (A), so allowing the adoption of a four compartments model. The annual production of the two species was tentatively estimated.

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What this paper is about

An attempt was made to estimate the main demographic parameters in two populations of the tubificids T. tubifex and L. hoffmeisteri. The eggs and worms were counted and the individual weights measured in adequate sub-samples. It was possible to subdivide each population into four groups: eggs and embryos (E), young (G1), young and regressed adults (G2), adults (A), so allowing the adoption of a four compartments model. The annual production of the two species was tentatively estimated.

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Available abstract

An attempt was made to estimate the main demographic parameters in two populations of the tubificids T. tubifex and L. hoffmeisteri. The eggs and worms were counted and the individual weights measured in adequate sub-samples. It was possible to subdivide each population into four groups: eggs and embryos (E), young (G1), young and regressed adults (G2), adults (A), so allowing the adoption of a four compartments model. The annual production of the two species was tentatively estimated.

Key concepts: Tubifex tubifex, Oligochaeta (plant), Tubifex, Benthic zone, Biology, Population, Ecology, Toxicology

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Ponderal production ofTubifex tubifexMüller andLimnodrilus hoffmeisteriClaparède (Oligochaeta, Tubificidae), benthic cohabitants of an artificial lake — Research Paper | ScholarLens