Institute of

Sea Fisheries




Herwigstraße 31

27572 Bremerhaven

Telephone: +49 471 94460 101

Fax: +49 471 94460 199

Dipl.-Biol. Jens Ulleweit

Dipl.-Biol. Jens  Ulleweit
Herwigstraße 31
27572 Bremerhaven
+49 471 94460 117
+49 471 94460 199

Research interests

  • Catch composition of different commercial fisheries with special emphasis on discards
  • Egg production and biology in general of mackerel and horse mackerel
  • Member of various ICES and EU expert groups


  • Population dynamics and assessment of pelagic fish stocks (herring, mackerel, horse mackerel, blue whiting and sprat) in the North Sea and North Atlantic
  • Biological monitoring of German fisheries activities and derivation of protection measures for fish stocks
  • EU Data Collection Framework (DCF)
  • Recruitment research: Investigation of fish eggs and larvae in terms of species composition and size

Educational background and employment

  • since 2002: Scientist at the Institute of Sea Fisheries
  • 2001 – 2002: Employed as scientific observer on commercial fishing trips at the German Federal Research Centre of Fisheries
  • 1998 – 2000: Assistant project manager in a commercial environment in London, UK
  • 1996 – 1998: Research fellow at the Alfred Wegener Institute for Polar and Marine Research; participation in research projects: “The impact of the Europipe installation on fish and decapods” and “Zoogeographic investigations on eelpout Zoarces viviparous”
  • 1995: Diploma thesis at the Alfred Wegener Institute for Polar and Marine Research in frame of the UBA project “Development of a monitoring strategy for the fish and crustaceans of the East Frisian Wadden Sea” (On the ecology of two resident fish species from the Wadden Sea, Eelpout [Zoarces viviparus] and butterfish [Pholis gunnellus])
  • 1991 – 1995: Working student at the Alfred Wegener Institute for Polar and Marine Research, Bremerhaven.Studies of biology in Frankfurt am Main and Bremen.