Institute of

Sea Fisheries




Herwigstraße 31

27572 Bremerhaven

Telephone: +49 471 94460 101

Fax: +49 471 94460 199

Dr. Holger Haslob

Dr. Holger  Haslob
Herwigstraße 31
27572 Bremerhaven
+49 471 94460 355
+49 471 94460 199

Research interests

  • Reproduction biology of marine fishes
  • Improvement of stock assessment methods
  • Ecology of early life stages of marine fish
  • Recruitment processes of marine fish stocks


  • Towards a Joint Monitoring Programme for the North Sea and Celtic Sea (JMP NS/CS)
  • Population dynamics and assessment of demersal fish stocks in the North Sea and North Atlantic
  • Biological monitoring of German fisheries activities and derivation of protection measures for fish stocks

Educational background and employment

  • since 2012: Scientist at the Institute of Sea Fisheries
  • 2011: PhD thesis: „Reproductive ecology of Baltic sprat and its application in stock assessment“
  • 2002: Diploma thesis: “Der Einfluß von Umweltbedingungen auf die Verteilungsmuster von Fischlarven in der Nordsee” (in German)
  • 2002: Diploma in biology (major subject fisheries biology; minor subjects zoology and physical oceanography. (CAU/IfM-GEOMAR)
  • 1999 – 2002: Main study period of fisheries biology at Leibniz-Institut für Meereswissenschaften in Kiel (Germany)
  • 1996 – 1999: Basic studies in Biology; intermediate examination in zoologye, botany, mathematics and chemistry at Christian-Albrechts-Universität zu Kiel (CAU).

Working Groups and Committees

Working Group - CommitteeTasks
Working Group on Beam Trawl Survey (WGBEAM)Coordination of different beam trawl surveys in the North Sea and adjacent waters as well as the compilation and analysis of the data collected for the estimation of relative indices for stock assessments
Working Group on the Assessment of Demersal Stocks in the North Sea and Skagerrak (WGNSSK)The WGNSSK working group provides advice on single species catch quotas (TAC). Using historical information on catches and survey indices, quantitative models are used to assess the current population size and forecast future conditions
Working Group on Crangon Fisheries and Life History (WGCRAN)Compilation of landing data from the brown shrimp fishery as well as analysis of biological data and survey data of Crangon crangon
Benchmark Workshop for North Sea Stocks (WKNSEA)Evaluation and further development of existing assessment models for demersal stocks in the North Sea and adjacent waters. This working group operates in the form of workshops complementary to the WGNSSK