Journal
JOURNAL OF MARINE SCIENCE AND ENGINEERING
Volume 10, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/jmse10121808
Keywords
biodiversity; community composition; rhodolith morphotypes; habitat mapping; Lampedusa Island; macroalgae; bioconstructions; Linguimaera caesaris
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This study investigates the habitat mapping, physical characteristics, and benthic community of a rhodolith bed in the Pelagie Islands. The findings indicate a healthy bed with a diverse range of species, although signs of trawling were detected.
Habitat mapping, physical characteristics and benthic community of a rhodolith bed in the Pelagie Islands (Strait of Sicily, Mediterranean Sea) were studied through Multi-Beam Echo-Sounder (MBES), Remotely Operated Vehicle (ROV) and grab samples. The geomorphological analysis revealed an articulated and wide rhodolith bed; video inspections highlighted a bed with high coverage, few sandy patches and with a prevalence of the boxwork morphotype. A total of 207 taxa with 876 specimens were identified, and Polychaeta was the dominant taxon. Linguimaera caesaris, a Lessepsian benthic amphipod, was recorded in all sampling sites, and its presence represents an input to deepen the benthic assemblage research on the rhodolith bed. In terms of morphotype composition, dead/live ratio and species variability, the bed variability indicated a good status of health, although trawling signs were detected through ROV videos. The present study broadens the knowledge on Mediterranean rhodolith beds and supports the importance of survey and monitoring activities for the conservation and management of this important habitat.
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