Journal of Aquaculture Research & Development

Malebo Hellen Moepi

Publications

• Research Article
  Effect of Different Filter Methods on Seawater Quality at a Marine Scallop Hatchery
  Author(s): Thorolf Magnesen *,Anita Jacobsen ,Malebo Hellen Moepi Thorolf Magnesen *,Anita Jacobsen ,Malebo Hellen Moepi
  
  The effect of using two different filtering methods in the main seawater inlet to a scallop (Pecten maximus) hatchery in Norway was tested. Seawater was filtered through active filter media (AFM) and a protein skimmer, or through a drum filter and a protein skimmer. Seawater quality was characterized and tested on algal growth rate, egg development and larval activity. Tests were performed under winter and spring conditions (March, April and May 2009). Both seawater treatments reduced the dissolved organic carbon concentrations in the inlet seawater. The total bacterial number was stable in both seawater treatments, except for an increase in the drum filter in March. The bacterial community showed seasonal development: Actinobacteria and Alphaproteobacteria dominated in March, while Gammaproteobacteria dominated in April and May. In a cluster analysis, samples from bo.. View More»
  DOI: 10.4172/2155-9546.1000168

  Abstract PDF