Influence of fishing and functional group of algae on sea urchin control of algal communities in the eastern Atlantic
Tuya, F.; Sánchez-Jérez, P.; Haroun, R.J. (2005). Influence of fishing and functional group of algae on sea urchin control of algal communities in the eastern Atlantic. Mar. Ecol. Prog. Ser. 287: 255-260. https://dx.doi.org/10.3354/meps287255
We address the effect of several factors influencing the depth of interfaces between the shallow photophilic brown algal assemblages and Diadema antillarum urchin-dominated barrens on rocky reefs of the warm-temperate central-eastern Atlantic. By means of a multifactorial observational approach, we hypothesized that it would be locally influenced by (1) the functional structure of the dominant brown algal assemblages (corticated foliose algae versus large frondose coarsely-branched fucoid species), in addition to (2) the fishing status (fished versus unfished sites) and (3) the large-scale topography of the substrate. Our results show that brown algal assemblages reach deeper waters at unfished sites, which is independent of the dominant brown algal functional group. However, monospecific algal facies dominated by large frondose coarsely-branched fucoid species (mainly the genera Cystoseira) reach deeper waters in comparison with corticated foliose algae, at fished sites.
Datasets (2)
PecesCCV: ECOAQUA institute, University Las Palmas de Gran Canaria; Spain; (2015): Fish observations delivered by "Canarias por una Costa Viva" project, more
InvertebratesCCV: ECOAQUA institute, University Las Palmas de Gran Canaria; Spain; (2015): Invertebrates observations delivered by "Canarias por una Costa Viva" project, more
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