Klaus Knopf

PD Dr.

Klaus Knopf

Research Group Leader

Department

(Dept. 4) Fish Biology, Fisheries and Aquaculture

klaus.knopf@igb-berlin.de

Phone

+49 (0)30 64181 637

Fax

+49 (0)30 64181 663

Room

414

Müggelseedamm 310, 12587 Berlin

Profile

Research group

Fish Parasitology and Immunology

Expertise

experimental parasitology, fish immunology, parasite ecology

since 2000 research scientist at the Leibniz-Institute of Freshwater Ecology and Inland Fisheries
2008 Habilitation in Zoology / Fish Parasitology, Humboldt-University of Berlin
1999 PhD thesis, University Karlsruhe (TH)
1994 Diploma thesis in biology, University Freiburg/Br.

Publications

2024

February 2024

Shaw, Christopher; Knopf, Klaus; Roy, Koushik; Ulrichs, Christian; Kloas, Werner

Animal versus plant protein sources in marine ingredient-free aquaponic diets: A case study on nutrient release, and retention of African catfish (Clarias gariepinus) reared in RAS

Aquaculture. - 584(2024), Art. 740641

http://dx.doi.org/10.1016/j.aquaculture.2024.740641

2023

January 2024

Fabian J. Schäfer; Jörn Gessner; Werner Kloas; Klaus Knopf; Thomas Meinelt; Hendrik Monsees; Christopher Shaw

Gegen den Strom - Aquakultur in Deutschland

Zeitschrift für Fischerei. - 3(2023), Art. 10, 1-10.

http://dx.doi.org/10.35006/fischzeit.2023.32

May 2023

Christopher Shaw; Klaus Knopf; Laura Klatt; Gabina Marin Arellano; Werner Kloas

Closing Nutrient Cycles through the Use of System-Internal Resource Streams: implications for Circular Multitrophic Food Production Systems and Aquaponic Feed Development

Sustainability. - 15(2023)9, Art. 7374

http://dx.doi.org/10.3390/su15097374

March 2023

Werner Kloas; Klaus Knopf; Laura Klatt; Alaa Osman; Radek Gebauer; Andrea Zikova-Kloas; Christopher Shaw

Aquaponics - combining sustainability and resilience f or a reliable food security

Innowacje w gospodarce rybackiej. (2023), S. 107-120

February 2023

Radek Gebauer; Anneliese Brügmann; Ewumi Azeez Folorunso; Tobias Goldhammer; Tatyana Gebauer; Viola Schöning; Sandra Bittmann; Klaus Knopf; Jan Mráz; Werner Kloas

Species- and diet-specific aquaculture wastewater nutrient profile: implications for aquaponics and development of sustainable aquaponics diet

Aquaculture. - 568(2023), Art. 739307

http://dx.doi.org/10.1016/j.aquaculture.2023.739307

2022

December 2022

Christopher Shaw ... Klaus Knopf ... Werner Kloas

Toward feeds for circular multitrophic food production systems: holistically evaluating growth performance and nutrient excretion of african catfish fed fish meal-free diets in comparison to nile tilapia

Sustainability. - 14(2022)21, Art. 14252

http://dx.doi.org/10.3390/su142114252

April 2022

Thora Lieke; Christian E.W. Steinberg; Thomas Meinelt; Klaus Knopf; Werner Kloas

Modification of the chemically induced inflammation assay reveals the Janus face of a phenol rich fulvic acid

Scientific Reports. - 12(2022), Art. 5886

http://dx.doi.org/https://doi.org/10.1038/s41598-022-09782-w

March 2022

Christopher Shaw; Klaus Knopf; Werner Kloas

Fish feeds in aquaponics and beyond: a novel concept to evaluate protein sources in diets for circular multitrophic food production systems

Sustainability. - 14(2022)7, Art. 4064

http://dx.doi.org/10.3390/su14074064

2021

July 2021

Franziska Kupprat; Franz Hölker; Klaus Knopf; Torsten Preuer; Werner Kloas

Innate immunity, oxidative stress and body indices of Eurasian perch Perca fluviatilis after two weeks of exposure to artificial light at night

Journal of Fish Biology. - 99(2021)1, 118-130

http://dx.doi.org/10.1111/jfb.14703

July 2021

Thora Lieke; Christian E.W. Steinberg; Sandra Bittmann; Sascha Behrens; Seyed H. Hoseinifar; Thomas Meinelt; Klaus Knopf; Werner Kloas

Fulvic acid accelerates hatching and stimulates antioxidative protection and the innate immune response in zebrafish larvae

Science of the Total Environment. - 796(2021), Art. 148780

http://dx.doi.org/10.1016/j.scitotenv.2021.148780

May 2021

Seraina E. Bracamonte; Klaus Knopf; Michael T. Monaghan

Encapsulation of Anguillicola crassus reduces the abundance of adult parasite stages in the European eel (Anguilla anguilla)

Journal of Fish Diseases. - 44(2021)6, 771-782

http://dx.doi.org/10.1111/jfd.13301

April 2021

Jenny C. Vivas Muñoz; Christian K. Feld; Sabine Hilt; Alessandro Manfrin; Milen Nachev; Daniel Köster; Maik A. Jochmann; Torsten C. Schmidt; Bernd Sures; Andrea Ziková; Klaus Knopf

Eye fluke infection changes diet composition in juvenile European perch (Perca fluviatilis)

Scientific Reports. - 11(2021), Art. 3440

http://dx.doi.org/10.1038/s41598-021-81568-y

January 2021

Thora Lieke; Christian E. W. Steinberg; Bo Pan; Irina V. Perminova; Thomas Meinelt; Klaus Knopf; Werner Kloas

Phenol-rich fulvic acid as a water additive enhances growth, reduces stress, and stimulates the immune system of fish in aquaculture

Scientific Reports. - 11(2021), Art. 174

https://doi.org/10.1038/s41598-020-80449-0

2020

December 2020

Redaktion: Johannes Graupner; Verantwortliche Autoren: Jörn Gessner; Werner Kloas; Klaus Knopf; Klaus Kohlmann; Thomas Meinelt; Hendrik Monsees; Fabian Schäfer; Georg Staaks

Nachhaltige Aquakultur in Deutschland - Chancen und Herausforderungen: IGB Policy Brief

http://dx.doi.org/https://dx.doi.org/10.4126/FRL01-006422718

2019

December 2019

Seraina E. Bracamonte; Paul R. Johnston; Michael T. Monaghan; Klaus Knopf

Gene expression response to a nematode parasite in novel and native eel hosts

Ecology and Evolution. - 9(2019)23, S. 13069-13084

http://dx.doi.org/10.1002/ece3.5728

https://repository.publisso.de/resource/frl%3A6419034

November 2019

Seraina E. Bracamonte; Paul R. Johnston; Klaus Knopf; Michael T. Monaghan

Experimental infection with Anguillicola crassus alters immune gene expression in both spleen and head kidney of the European eel (Anguilla anguilla)

Marine Genomics. - 45(2019), S. 28-37

http://dx.doi.org/10.1016/j.margen.2018.12.002

https://repository.publisso.de/resource/frl%3A6419132

September 2019

Jenny Carolina Vivas Munoz; David Bierbach; Klaus Knopf

Eye fluke (Tylodelphys clavata) infection impairs visual ability and hampers foraging success in European perch

Parasitology Research. -118(2019)9, S. 2531-2541

http://dx.doi.org/10.1007/s00436-019-06389-5

July 2019

Nora Baberschke; Laura Schulzik; Torsten Preuer; Klaus Knopf; Thomas Meinelt; Werner Kloas

Potash mining effluents and ion imbalances cause transient stress in adult common roach, Rutilus rutilus

Ecotoxicology and Environmental Safety. - 180(2019)S. 733-741

http://dx.doi.org/10.1016/j.ecoenv.2019.05.069

https://repository.publisso.de/resource/frl%3A6415616

2018

January 2019

Jenny Carolina Vivas Munoz; Sabine Hilt; Petr Horak; Klaus Knopf

Impact of trematode infections on periphyton grazing rates of freshwater snails

Parasitology Research. -117(2018)11, S. 3547-3555

http://dx.doi.org/10.1007/s00436-018-6052-y

September 2018

K. Knopf; K. Buschmann; M. Hansel; J. Radinger; W. Kloas

Flash photography does not induce stress in the Ram cichlid Mikrogeophagus ramirezi (Myers &Harry, 1948) in aquaria

Journal of Applied Ichthyology. - 34(2018)4, S. 922-928

http://dx.doi.org/10.1111/jai.13673

2017

October 2017

C. Cobo Labarca; J. Radinger; V. Schöning; R. Ariav; R. Jung; K. D. Thompson; W. Kloas; K. Knopf

Application of low-frequency sonophoresis and reduction of antibiotics in the aquatic systems

Journal of Fish Diseases. - 40(2017)11, S. 1635-1643

http://dx.doi.org/10.1111/jfd.12631

September 2017

Jeny Carolina Vivas Munoz; Georg Staaks; Klaus Knopf

The eye fluke Tylodelphys clavata affects prey detection and intraspecific competition of European perch (Perca fluviatilis)

Parasitology Research. -116(2017)9, S. 2561-2567

http://dx.doi.org/10.1007/s00436-017-5564-1

January 2017

Gregor Kalinkat; Juliano S. Cabral; William Darwall; G. Francesco Ficetola; Judith L. Fisher; Darren P. Giling; Marie-Pierre Gosselin; Hans-Peter Grossart; Sonja C. Jähnig; Jonathan M. Jeschke; Klaus Knopf; Stefano Larsen; Gabriela Onandia; Marlene Paetzig; Wolf-Christian Saul; Gabriel Singer; Erik Sperfeld; Ivan Jaric

Flagship umbrella species needed for the conservation of overlooked aquatic biodiversity

Conservation Biology. - 31(2017)2, S. 481-485

http://dx.doi.org/10.1111/cobi.12813

https://repository.publisso.de/resource/frl%3A6403316

2015

February 2015

Cristobal Cobo Labarca; Mary Makhutu; Alexander E. Lumsdon; Kim D. Thompson; Rainer Jung; Werner Kloas; Klaus Knopf

The adjuvant effect of low frequency ultrasound when applied with an inactivated Aeromonas salmonicida vaccine to rainbow trout (Oncorhynchus mykiss)

Vaccine. - 33(2015)11, S. 1369-1374

http://dx.doi.org/10.1016/j.vaccine.2015.01.027

2014

December 2014

Sebastian Emde; Sonja Rueckert; Judith Kochmann; Klaus Knopf; Bernd Sures; Sven Klimpel

Nematode eel parasite found inside acanthocephalan cysts - a "Trojan horse" strategy?

Parasites & Vectors. - 7(2014)504

http://dx.doi.org/10.1186/s13071-014-0504-8

March 2014

Cristobal Cobo; Katarzyna Makosch; Rainer Jung; Klaus Kohlmann; Klaus Knopf

Enhanced Aeromonas salmonicida bacterin uptake and side effects caused by low frequency sonophoresis in rainbow trout (Oncorhynchus mykiss)

Fish & Shellfish Immunology. - 36(2014)2, S. 444-452

http://dx.doi.org/10.1016/j.fsi.2013.12.010

2013

November 2013

Cristobal Cobo; Katarzyna Makosch; Rainer Jung; Klaus Knopf

Ultrasound-mediated immersion vaccination of rainbow trout (Oncorhynchus mykiss)

Fischkrankheiten im Spannungsfeld Wirt-Erreger-Umwelt / EAFP. - Hannover. - S. 191-195

November 2013

Klaus Knopf; Christoph Steinbach; Jürgen Schreiber

Effekt von Dikerogammarus villosus auf die Parasitenfauna von Flussbarschen (Perca fluviatilis)

Fischkrankheiten im Spannungsfeld Wirt-Erreger-Umwelt / EAFP. - Hannover. - S. 153-160

November 2013

Amir Abbas Bazyar Lakeh; Rainer Jung; Ra'anan Ariav; Werner Kloas; Thomas Meinelt; Klaus Knopf

Niederfrequenter Ultraschall und UV-C zur Abtötung von Parasiten und zur Keimreduktion in Kreislaufanlagen

Fischkrankheiten im Spannungsfeld Wirt-Erreger-Umwelt / EAFP. - Hannover. - S. 123-129

June 2013

Amir Abbas Bazyar Lakeh; Werner Kloas; Rainer Jung; Ra'anan Ariav; Klaus Knopf

Low frequency ultrasound and UV-C for elimination of pathogens in recirculating aquaculture systems

Ultrasonics Sonochemistry. - 20(2013)5, S. 1211-1216

http://dx.doi.org/10.1016/j.ultsonch.2013.01.008

2009

March 2010

K. Knopf; N. Neumann; C. Pietsch; W. Kloas; H. Kürzinger; B. B. ter Höfte; G. Großheider

Suche nach einem alternativem Fischmodell für Wirksamkeitsuntersuchungen immunstimulierender Futteradditive

Der Weg zum gesunden Fisch / Dirk Willem Kleingeld u. Dieter Steinhagen (Hrsg.). - Hannover, 2009. - S. 219-226

January 2010

Constanze Pietsch; Nadja Neumann; Klaus Knopf; Sven Wuertz; Werner Kloas

Progestogens cause immunosuppression of stimulated carp (Cyprinus carpio L.) leukocytes in vitro

Comparative biochemistry and physiology C. - 150(2009)1, S. 16-24

http://dx.doi.org/10.1016/j.cbpc.2009.02.003

2008

April 2011

K. Knopf; R. Lucius

Vaccination of eels (Anguilla japonica and Anguilla anguilla) against Anguillicola crassus with irradiated L3

Parasitology. - 135(2008)5, S. 633-640

http://dx.doi.org/10.1017/S0031182008004162

August 2008

K. Knopf; A. Madriles Helm; R. Lucius; W. Bleiss; H. Taraschewski

Migratory response of European eel (Anguilla anguilla) phagocytes to the eel swimbladder nematode Anguillicola crassus

Parasitology research. - 102(2008)6, S. 1311-1316

http://dx.doi.org/10.1007/s00436-008-0910-y

2007

April 2008

Klaus Knopf; Anna Madriles Helm

Anguillicola crassus im Europäischen Aal und im Japanischen Aal

Gesunde Fische überall / EAFP. - Bern, 2007. - S. 1-8

April 2008

Constanze Pietsch; Günter Kotterba; Klaus Knopf; Nadja Neumann; Werner Kloas

Immunmodulationen beim Karpfen durch Sexualsteroide

Gesunde Fische überall / EAFP. - Bern, 2007. - S. 1-5

March 2008

Klaus Knopf; Antje Krieger; Franz Hölker

Parasite community and mortality of overwintering young-of-the-year roach (Rutilus rutilus)

Journal of parasitology. - 93(2007)5, S. 985-991

2006

July 2018

K. Knopf

The swimbladder nematode Anguillicola crassus in the European eel Anguilla anguilla and the Japanese eel Anguilla japonica: differences in susceptibility and immunity between a recently colonized host and the original host

Journal of Helminthology. - 80(2006)2, S. 129-136

http://dx.doi.org/10.1079/JOH2006353

2005

December 2005

H. Taraschewski; J. Boomker; K. Knopf; F. Moravec

Anguillicola papernai (Nematoda: Anguillicolidae) and other helminths parasitizing the African longfin eel Anguilla mossambica

Diseases of aquatic organisms. - 63(2005), S. 185-195

http://dx.doi.org/10.3354/dao063185

December 2005

Klaus Knopf; Franz Hölker

First report of Philometra obturans (Nematoda) and Neoergasilus japonicus (Copepoda) in Germany

Acta parasitologica. - 50(2005)3, S. 261-262

2004

April 2012

Klaus Knopf

Parasiten bedrohen den Europäischen Aal

Brandenburger Agrar- und Umwelt-Journal. - 17(2004) S. 15-16

August 2008

Bernd Sures; Klaus Knopf

Parasites as a threat to freshwater eels?

Science. - 304(2004)5668, S. 208-209

http://dx.doi.org/10.1126/science.304.5668.209

November 2004

K. Knopf; M. Mahnke

Differences in susceptibility of the European eel (Anguilla anguilla) and the Japanese eel (Anguilla japonica) to the swim-bladder nematode Anguillicola crassus

Parasitology. - 129(2004)4, S. 491-496

http://dx.doi.org/10.1017/S0031182004005864

September 2004

A. P. Ekanem; T. Meinelt; W. Kloas; K. Knopf

Early life stage toxicity of extracts from the african fish poison plants Tephrosia vogelii Hook. f. and Asystasia vogeliana Benth. on zebrafish embryos

Journal of fish biology. - 65(2004)2, S. 489-494

http://dx.doi.org/10.1111/j.1095-8649.2004.00464.x

June 2004

Thomas Meinelt; Kurt Schreckenbach; Klaus Knopf; Andreas Wienke; Angelika Stüber; Christian E. W. Steinberg

Humic substances affect physiological condition and sex ratio of swordtail (Xiphophorus helleri Heckel)

Aquatic sciences. - 66(2004)2, S. 239-245

http://dx.doi.org/10.1007/s00027-004-0706-9

June 2004

B. Sures; K. Knopf

Individual and combined effects of cadmium and 3,3', 4,4',5-pentachlorobiphenyl (PCB 126) on the humoral immune response in European eel (Anguilla anguilla) experimentally infected with larvae of Anguillicola crassus (Nematoda)

Parasitology. - 128(2004)4, S. 445-454

http://dx.doi.org/10.1017/S003118200300475X

April 2004

A. P. Ekanem; A. Obiekezie; W. Kloas; K. Knopf

Effects of crude extracts of Mucuna pruriens (Fabaceae) and Carica papaya (Caricaceae) against the protozoan fish parasite Ichthyophthirius multifiliis

Parasitology research. - 92(2004)5, S. 361-366

http://dx.doi.org/10.1007/s00436-003-1038-8

2001

August 2008

B. Sures; K. Knopf; W. Kloas

Induction of stress by the swimbladder nematode Anguillicola crassus in European eels, Anguilla anguilla, after repeated experimental infection

Parasitology. - 123(2001)2, S. 179-184

http://dx.doi.org/10.1017/S003118200100823X

2000

March 2002

K. Knopf; K. Naser; M. H. T. van der Heijden; H. Taraschewski

Evaluation of an ELISA and immunoblotting for studying the humoral immune response in Anguilla crassus infected European eel Anguilla anguilla

Diseases of aquatic organisms. - 43(2000)1, S. 39-48

http://dx.doi.org/10.3354/dao043039

October 2001

K. Knopf; K. Naser; M. H. T. van der Heijden; H. Taraschewski

Humoral immune response of European eel Anguilla anguilla experimentally infected with Anguillicola crassus

Diseases of aquatic organisms. - 42(2000)1, S. 61-69

http://dx.doi.org/10.3354/dao042061

Klaus Knopf

Publications

2024

2023

Aquaponics - combining sustainability and resilience f or a reliable food security

2022

2021

2020

2019

2018

2017

2015

2014

2013

Ultrasound-mediated immersion vaccination of rainbow trout (Oncorhynchus mykiss)

Effekt von Dikerogammarus villosus auf die Parasitenfauna von Flussbarschen (Perca fluviatilis)

Niederfrequenter Ultraschall und UV-C zur Abtötung von Parasiten und zur Keimreduktion in Kreislaufanlagen

2009

Suche nach einem alternativem Fischmodell für Wirksamkeitsuntersuchungen immunstimulierender Futteradditive

2008

2007

Anguillicola crassus im Europäischen Aal und im Japanischen Aal

Immunmodulationen beim Karpfen durch Sexualsteroide

Parasite community and mortality of overwintering young-of-the-year roach (Rutilus rutilus)

2006

2005

First report of Philometra obturans (Nematoda) and Neoergasilus japonicus (Copepoda) in Germany

2004

Parasiten bedrohen den Europäischen Aal

2001

2000

Share page