Article
Environmental Sciences
Neila Annabi-Trabelsi, Wassim Guermazi, Vincent Leignel, Yousef Al-Enezi, Qusaie Karam, Mohammad Ali, Habib Ayadi, Genuario Belmonte
Summary: This study investigated phytoplankton and copepoda in the industrialized Gabes coast and found that the community composition is affected by eutrophication. Intensive agrochemical activities and rapid population growth have led to high concentrations of nutrients and eutrophication in the seawater. Bacillariophyta was the most abundant group, and certain species showed positive correlation with the eutrophication index. The diversity index of phytoplankton and copepoda showed negative correlations with the eutrophication index, indicating their sensitivity to eutrophication.
Article
Environmental Sciences
Jean-Claude Dauvin, Abir Fersi, Jean-Philippe Pezy, Ali Bakalem, Lassad Neifar
Summary: The study conducted in the north-western part of the Gulf of Gabes in Tunisia from 2016 to 2017 revealed the impact of various anthropogenic pressures on the invertebrate population in the area. Despite the disturbances, different species exhibited specific changes in abundance and distribution across seasons and locations.
MARINE POLLUTION BULLETIN
(2021)
Article
Marine & Freshwater Biology
Turhan Kebapcioglu
Summary: This study investigates discards in fishery, specifically focusing on elasmobranch discards in shrimp trammel net fishery off the southern coast of Turkey. It discovered 11 elasmobranch species, with 7 classified as threatened in the Mediterranean. Consistent and reliable data is essential for sustainable fisheries management and the protection of endangered species.
CAHIERS DE BIOLOGIE MARINE
(2021)
Article
Geosciences, Multidisciplinary
Sarra Bachtouli, Mouna Abidi, Jean-Christophe Comte, Moncef Zairi
Summary: Arid and semiarid zones, including the southern Mediterranean countries, are severely affected by water scarcity. This study focuses on mapping the offshore extension of deep aquifers in the Gulf of Gabes, Tunisia, using existing geological, geophysical, and hydrogeological data. The study confirms the offshore continuity of the deep aquifers and identifies their potential for agricultural, industrial, and domestic purposes.
HYDROGEOLOGY JOURNAL
(2023)
Article
Environmental Sciences
Neila Annabi-Trabelsi, Wassim Guermazi, Qusaie Karam, Mohammad Ali, Saif Uddin, Vincent Leignel, Habib Ayadi
Summary: The study found that the concentrations of Cd, Cu, Pb, and Zn in the seawater of Gulf of Gabe`s are significantly higher than in other Mediterranean coastal waters, making it a pollution hotspot. The average metal concentrations show different orders in water and phytoplankton, compared to zooplankton. Additionally, the biomagnification of Zn and Pb is higher in zooplankton, while Cu and Cd are higher in phytoplankton.
MARINE POLLUTION BULLETIN
(2021)
Article
Fisheries
Bechir Saidi, Samira Enajjar, Mohamed Nejmeddine Bradai
Summary: The study analyzed data from 162 demersal longline sets during the grouper fishing seasons in 2016 and 2017 to quantify the impact of the fishery on elasmobranchs in the Gulf of Gabs. At least 17 elasmobranch species were caught, comprising about 50% of the total catch in number. The study suggests that the coastal viviparous elasmobranch species in the study area are highly vulnerable to overfishing and should be carefully managed.
MEDITERRANEAN MARINE SCIENCE
(2023)
Article
Engineering, Marine
Abir Fersi, Jean-Philippe Pezy, Ali Bakalem, Lassad Neifar, Jean-Claude Dauvin
Summary: The present study analyzes the spatio-temporal structuration of the molluscan fauna in four tidal channels of the Gulf of Gabes. The dominant species in these channels are characteristic of habitats with detritus accumulation and seagrass meadows. The structure of the molluscan fauna is linked to the location of tidal channels in the Gulf of Gabes.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Environmental Sciences
Hatem Zaghden, Badreddine Barhoumi, Lobna Jlaiel, Catherine Guigue, Lassaad Chouba, Soufiane Touil, Sami Sayadi, Marc Tedetti
Summary: This study investigated the occurrence, origin, and potential ecological risk of dissolved polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCPs) in surface water samples from the Gulf of Gabes. The results showed a wide range of concentrations and identified the main sources of contamination. Risk assessment indicated low risk for PAHs and PCBs, but moderate to severe risk for OCPs.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Marwa Ajala, Walid Ben Ameur, Ali Annabi
Summary: This study investigated the concentrations of selected heavy metals in common cuttlefish from the Gulf of Gabes, Tunisia. The results showed significant variations in the levels of copper, zinc, and lead among different organs and sites. The recorded concentrations were within or below the levels found in similar species from other regions worldwide.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Afef Ben Amor, Mohamed Bagues, Nada Elloumi, Nizar Chaira, Rami Rahmani, Kamel Nagaz
Summary: This study focused on studying the tolerance of four economically valuable tree crops in the Mediterranean agriculture to air pollutants in different air quality environments. The results showed that date palm and olive trees performed well under poor air quality, while fig and pomegranate trees performed poorly. This information can be valuable for peri-urban agriculture, restoration projects, and improving air quality in polluted areas.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Ecology
Salma Kmiha-Megdiche, Amira Rekik, Marc Pagano, Habib Ayadi, Jannet Elloumi
Summary: Spatial variability of ciliates in relation to chlorophyll a, nutrients, and environmental variables were studied in lagoon and marine ecosystems during autumn. Results showed significant differences between the two ecosystems, with higher nutrient concentrations at the marine coast. The abundance and species richness of ciliates were higher in the lagoon compared to the marine coast, and the distribution patterns of ciliate communities were strongly influenced by nutrient heterogeneity.
REGIONAL STUDIES IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Mengjie Yu, Changdong Liu, Liyou Zhang, Yanli Tang
Summary: This study conducted field experiments in the Yellow Sea to test the effects of different colored LED fishing lights on the catch rates of commercial species in trammel nets. The results showed that the effects of LEDs on catch rates were species-specific and size-dependent. Green and red LEDs provided the highest profitability, while blue and white LEDs had similar performance. Overall, this study demonstrated that trammel nets equipped with LEDs could be a viable fishing strategy for small-scale trammel net fisheries.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Radhouan El Zrelli, Ahlem Hcine, Lamia Yacoubi, Ruben H. Roa-Ureta, Nicola Gallai, Sylvie Castet, Michel Gregoire, Pierre Courjault-Rade, Lotfi Jilani Rabaoui
Summary: In the early XXth century, the Gulf of Gabes in SE Tunisia had extensive seagrass beds, but due to toxic phosphogypsum discharges from a fertilizer industrial complex, it has lost 90% of its surface area. This has led to significant economic losses, estimated at 105 million euros in 2014, affecting small scale fisheries and carbon storage function. Without actions to reduce negative production externalities, recovery of Posidonia ecosystems in the region is unlikely, resulting in further economic, ecologic, and cultural losses.
MARINE POLLUTION BULLETIN
(2023)
Article
Environmental Sciences
Nesma Feki, Lamia Khannous, Fatma Abdmouleh Keskes, Abdelwaheb Ben Slama, Daniel Levacher
Summary: This study assessed the concentrations of trace metals in sediments and water column in different basins of Sfax port. The results showed that the sediments exceeded the standard thresholds for trace metals, and the water column exceeded the toxicity thresholds for phytoplankton, shellfish, and algae. Microbiological examinations also revealed the presence of sewage pollution indicators and pathogenic germs in the sediments and water column.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Marine & Freshwater Biology
Lamia Dammak Walha, Asma Hamza, Fatma Abdmouleh Keskes, Tamara Cibic, Aymen Mechi, Mabrouka Mahfoudi, Cherif Sammari
Summary: The study assessed the distribution and abundance of potentially harmful dinoflagellates in relation to heavy metals concentrations in the Gulf of Gabes. Despite severe enrichment of Cu and Cd near the phosphate factory, potentially harmful dinoflagellates showed high adaptation to these major contamination levels, even in the most polluted area.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)