macroalgal community
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2021 ◽  
Author(s):  
Martin Wahl ◽  
Francisco R. Barboza ◽  
Björn Buchholz ◽  
Sergey Dobretsov ◽  
Tamar Guy‐Haim ◽  
...  


PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6908
Author(s):  
Sarah Caronni ◽  
Chiara Calabretti ◽  
Sandra Citterio ◽  
Maria Anna Delaria ◽  
Rodolfo Gentili ◽  
...  

This paper focuses on the interactive short and long-term effect of three different stressors on a macroalgal assemblage. Three stressors are considered: herbivory, nutrients and mucilage. The experiment was conducted in Tavolara Punta Coda Cavallo Marine Protected Area (Mediterranean Sea) during a bloom of the benthic mucilage-producing microalga Chrysophaeum taylorii (Pelagophyceae); this microalga is recently spreading in the Mediterranean Sea. On a rocky substratum, 36 plots 20 × 20 cm in size were prepared. Factorial combinations of three experimental treatments were applied in triplicate, including three grazing levels crossed with two nutrient enrichment and two mucilage removal treatments. Significant differences were observed among treatments 8 weeks later, at the end of summer. In particular, dark filamentous algae were more abundant in all enriched plots, especially where mucilage and macroalgae had been removed; a higher percent cover of crustose coralline algae was instead observed where nutrients had been increased and no grazing pressure acted. Furthermore, the abundance of Dictyota spp. and Laurencia spp. was significantly higher in enriched mucilage-free plots where the grazing pressure was null or low. However, the effects of the treatments on the overall assemblage of the macroalgal community were not long persistent (36 weeks later). These results illustrate the capacity of a shallow-water macroalgal community to quickly recover from the simultaneous impacts of herbivory, nutrient enrichment, and mucilage.



2019 ◽  
Vol 64 (1) ◽  
pp. 87-94
Author(s):  
Seung Wook JUNG ◽  
Yoon Sik OH ◽  
Yohei SHIMASAKI ◽  
Ik Joon KANG ◽  
Chang Geun CHOI




2017 ◽  
Vol 35 (4) ◽  
pp. 595-603
Author(s):  
Jin suk Heo ◽  
Hyun Il Yoo ◽  
Eun jung Park ◽  
Dong Soo Ha


2017 ◽  
Vol 187 ◽  
pp. 193-203 ◽  
Author(s):  
María Laura Marcías ◽  
Dolores Deregibus ◽  
Leonardo Ariel Saravia ◽  
Gabriela Laura Campana ◽  
María Liliana Quartino


Author(s):  
Camilo B. García ◽  
Guillermo Díaz Pulido

The macroalgal intertidal community at a tropical location (Punta de la Loma, Colombian Caribbean) was monitored at irregular intervals from 1992 to 1995. The highly diverse macroalgal community was relatively invariant in cover, taxa and biomass from small spatial scales (square centimeters). At larger spatial scales (square meters), however, there was a small but definitive seasonal pulse in dominance and composition. Sand intrusions over the rocky intertidal represents a strong disturbance reducing macroalgal cover during the dry season. Interannual variation was also detected. La Punta de la Loma appears to be influenced by the regional upwelling conditions.



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