caa a22 4500 397551665 CHVBK 20180308164752.0 cr unu---uuuuu 161202e199612 xx s 000 0 eng 10.1006/jmsc.1996.0142 doi (NATIONALLICENCE)oxford-10.1006/jmsc.1996.0142 Trends in population dynamics and exploitation of North Sea plaice (Pleuronectes platessa L.) since the late 1800s [Elektronische Daten] [A. D. Rijnsdorp, R. S. Millner] The exploitation history of North Sea plaice is reconstructed from the late 1800s to 1993 using data on catch per unit of effort, total international landings, size and age composition of landings, and growth rate. Available data indicate that fishing mortality was already high in the 1890s (Fu=0.4) and increased to a record high in the late 1920s and early 1930s (F=0.8). After World War II, fishing mortality was reduced, but from the 1960s onwards it increased steadily to a level of F=0.6 in the early 1990s. Indices of catch per unit of effort during the last quarter of the 19th century are concurrent with the expansion of the fisheries. Stock biomass was at a low level in the 1930s but increased between the 1960s and 1980s owing to increased recruitment and improved growth. Landings were fairly stable around 55 000 t until the mid-1950s when they increased almost threefold to a record level of 170 000 t in 1989. The causes of these changes are discussed. It is suggested that changes in both growth rate and exploitation rate in young fish have been important. © 1996 International council for the Exploration of the Sea Articles nationallicence plaice nationallicence North Sea nationallicence exploitation nationallicence discards nationallicence recruitment history nationallicence Rijnsdorp A. D. Netherlands Institute for Fisheries Research PO Box 68, 1970 AB IJmuiden, The Netherlands aut Millner R. S. Fisheries Laboratory Lowestoft, Suffolk, NR33 0HT, England, UK aut ICES Journal of Marine Science Oxford University Press 53/6(1996-12), 1170-1184 1054-3139 53:6<1170 1996 53 icesjms https://doi.org/10.1006/jmsc.1996.0142 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1006/jmsc.1996.0142 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rijnsdorp A. D. Netherlands Institute for Fisheries Research PO Box 68, 1970 AB IJmuiden, The Netherlands aut NATIONALLICENCE 700 1- Millner R. S. Fisheries Laboratory Lowestoft, Suffolk, NR33 0HT, England, UK aut NATIONALLICENCE 773 0- ICES Journal of Marine Science Oxford University Press 53/6(1996-12), 1170-1184 1054-3139 53:6<1170 1996 53 icesjms Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford