Concepedia

Ulfert Focken

UF

Statistics

Publications

61

Citations

2.5K

H-Index

31

Active since

1992

Affiliations

University of Hohenheim(Current)

Leibniz Institute of Freshwater Ecology and Inland Fisheries

University of Göttingen

Johann Heinrich von Thünen-Institut

University of Veterinary Medicine Vienna

Ulfert Focken is an author at University of Hohenheim specializing in aquaculture, fish nutrition, and life sciences.

ORCID

Publications per year

1992–2020

61

Publications

61

Metabolic fractionation of stable carbon isotopes: implications of different proximate compositions for studies of the aquatic food webs using δ 13 C data

Ulfert Focken, Karsten Becker · Oecologia · 1998 · 227 citations

, , +14

Feeding level and individual metabolic rate affect ?13C and ?15N values in carp: implications for food web studies

Julia Gaye‐Siessegger, Ulfert Focken, Stefan Muetzel et al. · Oecologia · 2004 · 180 citations

, , +12

An improved procedure to assess fish condition on the basis of length-weight relationships

Hartmut Richter, Christian Lückstädt, Ulfert Focken et al. · OpenAgrar · 2000 · 125 citations

, , +9

Effect of different lipid extraction methods on δ<sup>13</sup>C of lipid and lipid-free fractions of fish and different fish feeds

Christian Schlechtriem, Ulfert Focken, Karsten Becker · Isotopes in Environmental and Health Studies · 2003 · 93 citations

, , +14

Feeding level and diet quality influence trophic shift of c and n isotopes in nile tilapia (<i>oreochromis niloticus</i> (L.))

Julia Gaye‐Siessegger, Ulfert Focken, Hansjörg Abel et al. · Isotopes in Environmental and Health Studies · 2003 · 79 citations · Full text

, , +17

1–5 of 61