Functional diversity of the macro‑invertebrate community in the port area of Kerkennah Islands (Tunisia)

摘要: The harbour area of Sidi Youssef in Kerkennah islands is characterized by specific anthropogenic pressures linked to fishing activities. To study the functional diversity benthic macro invertebrates, 10 stations located around port and along ship canal were sampled SCUBA diving. Collected invertebrates identified, counted preserved. For organization community, most common biodiversity indices groups assessed at each station, main physical chemical parameters measured. Results showed that apparent stress, could lead negative impacts on studied area, was related dredging/harbour Suspension feeders, consisting essentially polychaetes, which may be disturbed water turbidity, dominated farthest from port, where intensity activities obviously reduced. On contrary, carnivores inside possibly benefiting fish scraps discarded while close appeared more balanced trophically. applied biotic good ecological status, except navigation channel entrance, slightly degraded.