The Big Fish are Gone21ax0w3am0j23cz0qd1q1n3u-wpengine.netdna-ssl.com/... · The Big Fish are Gone...

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History of Marine Animal Populations www.hmapcoml.org Ling length compositions sources: 1800s: R.T. Poulsen 2007; modern data: courtesy O. A. Bergstad 2007. Past and Present source: B. Poulsen 2008 Past and Present Danish pelagic trawler 2010: HG 333 Isafold, Hirtshals Crew: 10-11 men Annual catch potential: >50,000 tonnes Size of Dutch herring fleet in 1640: 700-800 herring busses Crew: 11,000-12,000 men Total annual catch: 50,000 tonnes Credit: Reinier Nooms, alias ‘De Zeeman’ (ca 1623-1664), Etch, Harinck-Buisen, ca 1640-1664, Collection Visserijmuseum/Vlaardings Museum, Vlaardingen). Photo: Bo Poulsen The Big Fish are Gone Fisheries made early and dramatic changes to ecosystems worldwide. Example: North Sea Ling are smaller because of fishing. Average size caught: 60 - 90 cm. Average size caught: 89 - 126 cm. Average size caught: 77 - 103 cm. Year 1890 Year 1915 Year 1990 126 cm. 103 cm. 90 cm. Author: K.P.Pravato, P. Holm, R. T. Poulsen and B. Poulsen

Transcript of The Big Fish are Gone21ax0w3am0j23cz0qd1q1n3u-wpengine.netdna-ssl.com/... · The Big Fish are Gone...

Page 1: The Big Fish are Gone21ax0w3am0j23cz0qd1q1n3u-wpengine.netdna-ssl.com/... · The Big Fish are Gone Fisheries made early and dramatic changes to ecosystems worldwide. Example: North

History of Marine Animal Populations

www.hmapcoml.orgLing length compositions sources: 1800s: R.T. Poulsen 2007; modern data: courtesy O. A. Bergstad 2007. Past and Present source: B. Poulsen 2008

Past and Present

Danish pelagic trawler 2010:HG 333 Isafold, HirtshalsCrew: 10-11 menAnnual catch potential: >50,000 tonnes

Size of Dutch herring fleet in 1640:700-800 herring busses Crew: 11,000-12,000 menTotal annual catch: 50,000 tonnes

Credit: Reinier Nooms, alias ‘De Zeeman’ (ca 1623-1664), Etch, Harinck-Buisen, ca 1640-1664, Collection Visserijmuseum/Vlaardings Museum, Vlaardingen).

Photo: Bo Poulsen

The Big Fish are GoneFisheries made early and dramatic changes to ecosystems worldwide.

Example: North Sea Ling are smaller because of fishing.

Average size caught: 60 - 90 cm.

Average size caught: 89 - 126 cm.

Average size caught: 77 - 103 cm.

Year 1890

Year 1915

Year 1990

126 cm.

103 cm.

90 cm.

Author: K.P.Pravato, P. Holm, R. T. Poulsen and B. Poulsen