Control mechanisms and ecosystem‐based management of fishery production. Issue 1 (19th September 2018)

• Record Type: Journal Article
• Authors: Ye, Yimin; Carocci, Fabio
• Is Part Of: Fish and fisheries. Volume 20:Issue 1(2019)
• Page Start: 15
• Page End: 24
• Publication Date: 2018-09-19
• Subjects: bottom‐up control -- fisheries ecosystem -- multilevel modelling -- overfishing -- sustainable fisheries -- top‐down control; Fisheries -- Periodicals; Fishes -- Periodicals; 639.2
• DOI: 10.1111/faf.12321
• Languages: English
• ISSNs: 1467-2960

Abstract

Abstract: Fishery ecosystems are complex and influenced by various drivers that operate and interact at different levels and over multiple scales. Here, we propose a holistic methodology to determine the key mechanisms of fisheries, trophodynamics, and environmental drivers of marine ecosystems, using a multilevel model fitted to data on global catch, effort, trophic level, primary production, and temperature for 130 ecosystems from 1950 to 2012. The model describes the spatial‐temporal dynamics of world fisheries very well with a pseudo R 2 = 0.75 and estimates the effects of key drivers of fishery production. The results demonstrate the integrative operation of bottom‐up and top‐down regulated trophic interactions at the global level and great variations in their relative importance among different types of ecosystem. The estimation of key drivers' effects on marine ecosystems provides practical mechanisms for informed ecosystem‐based fisheries management to achieve the sustainable objectives that are consistent with the needs of specific fisheries.