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FIE is causing fish to shrink on an evolutionary scale leading to reduced catches and biomass.

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Reduced biodiversity

Fisheries-induced evolution (FIE) is the evolutionary change resulting from overfishing. The most dramatic impacts of FIE are fisheries collapse and reduced biomass (Heino & Godo 2002). FIE also influences the growth, maturation a fecundity of fish.

CollapseEdit

Extinction is a real risk of overfishing. Worm et al. (2006) projects the collapse of all presently fished taxa by the mid-21st century if current trends continue.  Collapse is defined as a decline of 90% from normal levels.

LiteratureEdit

Heino, M. & Godo, O.R. (2002). Fisheries-Induced Selection Pressures in The Context of Sustainable Fisheries. Bulletin of Marine Science, 70(2), 639-656.



Worm, B., Barbier, E.B., Beaumont, N., Duffy, J.E., Folke, C., Halpern, B.S., Jackson, J.B.C., Lotze, H.K., Micheli, F., Palumbi, S.R., Sala, E., Selkoe, K.A., Stachowicz, J.J. &Watson, R. (2006). Impacts of Biodiversity Loss on Ocean Ecosystem Services. Science, 314 (5800): 787-790.

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