Distribution of macroalgae in the area of Calvi (Corsica)
Katz, L.; Sirjacobs, D.; Gobert, S.; Lejeune, P.; Danis, B. (2021). Distribution of macroalgae in the area of Calvi (Corsica). Biodiversity Data Journal 9: e68249. https://dx.doi.org/10.3897/BDJ.9.e68249
Macroalgae play a structuring role in benthic ecosystems, which makes it very important to monitor their cover rates and study their community structures and changes in time. Such studies are usually led by autonomous divers and often do not generate sufficient data to provide enough material for strategically-sound conservation plans. This paper describes the dataset generated in the framework of the evaluation of the potential of a complementary data acquisition method: annotating videos transects obtained using an underwater Remotely Operated Vehicle (ROV).The focus was on Cystoseira brachycarpa, together with the abundance of several other macroalgae species, which could be identified using the ROV images after validation through specimen identification. Furthermore, in order to allow future uses, such as monitoring the status of colonisation of the invasive algae Caulerpa cylindracea, the ROV was sent to some deeper transects on sedimentary habitats (40 m) below the Posidonia meadows lower limits.
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