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- W2095449346 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 362:245-259 (2008) - DOI: https://doi.org/10.3354/meps07410 Effects of fishing on population structure and life history of roman Chrysoblephus laticeps (Sparidae) Albrecht Götz1,2,*, Sven E. Kerwath1, Colin G. Attwood3, Warwick H. H. Sauer1 1Department of Ichthyology and Fisheries Science, Rhodes University, 6140 Grahamstown, South Africa 2Elwandle Node, South African Environmental Observation Network (SAEON), 6140 Grahamstown, South Africa 3Marine Research Institute, Zoology Department, University of Cape Town, Private Bag X3, 7701 Rondebosch, South Africa *Email: albrecht@saeon.ac.za ABSTRACT: The effects of fishing on the population structure and life history of roman Chrysoblephus laticeps, a protogynous hermaphroditic seabream from South Africa, were investigated by comparing fish from protected and exploited areas. Experimental (controlled) fishing and underwater visual census were used to sample roman and to measure population parameters inside and outside the Goukamma Marine Protected Area. Sites chosen for comparisons were adjacent and physically similar to reduce environmental influences on the comparison. Both methods revealed that roman had a higher density and mean size inside the protected area than outside. Age-at-maturity and age-at-sex-change were lower in the exploited area. The shift in age-at-sex-change maintained a constant sex ratio between the exploited and unexploited areas. The condition factor of roman from the protected area was lower than that of roman from the exploited area. KEY WORDS: Fishing effects · Life history · Population structure · Chrysoblephus laticeps · Sparidae · Marine protected area · Sex change Full text in pdf format PreviousNextCite this article as: Götz A, Kerwath SE, Attwood CG, Sauer WHH (2008) Effects of fishing on population structure and life history of roman Chrysoblephus laticeps (Sparidae). Mar Ecol Prog Ser 362:245-259. https://doi.org/10.3354/meps07410 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 362. Online publication date: June 30, 2008 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2008 Inter-Research." @default.
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- W2095449346 title "Effects of fishing on population structure and life history of roman Chrysoblephus laticeps (Sparidae)" @default.
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