|Title||Reliability of non-lethal assessment methods of body composition and energetic status exemplified by applications to eel (Anguilla anguilla) and carp (Cyprinus carpio)|
|Written by||Thomas Klefotha, Christian Skov, Kim Aarestrupb, Robert Arlinghaus|
|From||Leibniz-Institute of Freshwater Ecology, and Inland Fisheries, Germany|
Leibniz-Institute of Freshwater Ecology, Denmark
Humboldt-Universität zu Berlin, Germany
|Published||March 18, 2013|
|Fish Species||Eel (Anguilla anguilla), Carp (Cyprinus carpio)|
|Key Words||Bioelectric impedance analyses, Fat meter, Relative condition, Dry mass, Energy density|
What the research is about
The objectives of our study were to:
(i) compare the performance of Kn, BIA (Bioelectric Impedance Analysis), and Fish Fat Meter to predict dry mass content as an indicator of energetic status using carp (Cyprinus carpio) and European eel (Anguilla anguilla) as model species.
(ii) to test for the effects of temperature on the functionality of BIA and Fish Fat Meter.
FM approach is the most suitable method to non-lethally estimate energetic status in both, carp and eel, whereas BIA is of limited use for energetic measurements in the same species, in contrast to other reports in the literature.
Assurant Innovations take
Using the Fish Fat Meter was a much better way to predict the dry mass content and the energy state of fish when compared with bioelectric impedance analysis method.