The Effect of Fluoranthene and Acetyl Cedrene in the Sediment on the Habitat Recolonisation of Capitella sp.I

Cristina Tristán Santamaría & Saana Pulkkinen

Studenteropgave: Semesterprojekt

Abstrakt

This project investigated the settling, survival and growth of Capitella sp. I in sediments contaminated with fluoranthene and acetyl cedrene. Different organic contents of the sediment and contaminant concentration levels were tested. Not much research has been done on this area, but Capitella sp. I is regarded as important pollutant indicator and bioremediation organism, which gives initiative to investigate their behaviour. In the experiment three organic content levels (100%, 75% and 50%) and three different contaminant levels for fluoranthene (0, 45, and 90 μg Flu g-1 DW sediment) and for acetyl cedrene (0, 1, and 50 μg AC g-1 DW sediment) were used. The larval settlement was observed for ten days and the survival and body volume of the worms was measured on days 12 and 25 of the experiment. The contaminant levels of the sediments did not seem to affect the larval settlement but it did seem to affect the survival and the body volume of Capitella sp. I. The different organic contents of the sediments seemed to affect larval settling, survival and body volume of the worms. Capitella sp. I prefers and does better in the highest organic content sediment.

UddannelserMiljøbiologi, (Bachelor/kandidatuddannelse) Bachelor el. kandidat
SprogEngelsk
Udgivelsesdato18 jun. 2008
VejledereAnnemette Palmqvist

Emneord

  • Ecotoxicology
  • Acetyl cedrene
  • Capitella
  • Fluoranthene