Fig. 1: Concept of six fishery strategies. | Nature Communications

Fig. 1: Concept of six fishery strategies.

From: Maintaining ecological stability for sustainable economic yields of multispecies fisheries in complex food webs

Fig. 1

A The choice of the target species can be (1) Random, or based on economic or network scenarios. The economic scenarios are (2) highest Productivity and (3) Price choosing the three target species with the highest price or highest productivity, respectively. B The network scenarios are (4) Similar, where species of similar size and trophic level are fished, (5) Trophically-balanced, where harvested species are chosen to maximize their difference in trophic levels, and (6) Distanced, where species with the largest link distance are harvested. C The differences between network scenarios can be characterized by (1) the average and (2) the variation of the trophic levels of the three harvested species. Similar is causing low variation in trophic levels within but high variability in average trophic levels across simulation runs, Trophically-balanced is causing high variation in trophic levels of the harvested species through the food web, and Distanced is causing a high variation of their trophic levels within and variable average in trophic levels across simulation runs. Primary producers or plants (bottom row) are not harvested.

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