%0 Journal Article %J Science of The Total Environment %D 2022 %T Trace metals exposure in three different coastal compartments show specific morphological and reproductive traits across generations in a sentinel copepod %A Das, Shagnika %A Souissi, Anissa %A Ouddane, Baghdad %A Hwang, Jiang-Shiou %A Souissi, Sami %K RCC1537 %X The effect of exposure from several compartments of the environment at the level of individuals were rarely investigated. This study reports the effect of contaminants from varied compartments like sediment resuspension, elutriation from resuspended sediment (extract) and seawater spiked trace metal mixtures (TM) on morphological and reproductive traits of the pelagic bioindicator copepod Eurytemora affinis. At the population level of E. affinis, lowest survival was observed in dissolved exposures (TM and extract) in the first generation (G1), showing some adaptation in the second generation (G2). An opposite trend for resuspended sediment showed higher sensitivity in survival at G2. At the individual level, prosome length and volume proved to be sensitive parameters for resuspended sediments, whereas clutch size and egg diameter were more sensitive to TM and extract. Although the generation of decontamination (G3, no exposure), showed a significant recovery at the population level (survival % along with clutch size) of E. affinis exposed to resuspended sediment, morphological characteristics like prosome length and volume showed no such recovery (lower than control, p <0.05). To the contrary, dissolved exposure showed no significant recovery from G1 to G3 on neither survival %, clutch size, egg diameter, prosome volume, but an increase of prosome length (p <0.05). Such tradeoffs in combatting the stress from varied sources of toxicity was observed in all exposures, from G1 to G3. The number of lipid droplets inside the body cavity of E. affinis showed a significant positive correlation with trace metal bioaccumulation (p <0.01) along with a negative correlation (p <0.05) with survival and clutch size in each treatment. This confirms the inability of copepods to utilize lipids under stressful conditions. Our study tenders certain morphological and reproductive markers that show specificity to different compartments of exposure, promising an advantage in risk assessment and fish feed studies. %B Science of The Total Environment %P 160378 %8 nov %G eng %U https://linkinghub.elsevier.com/retrieve/pii/S0048969722074800 %R 10.1016/j.scitotenv.2022.160378 %0 Journal Article %J Aquaculture Research %D 2020 %T Assessments of first feeding protocols on the larviculture of California grunion Leuresthes tenuis (Osteichthyes: Atherinopsidae) %A Pan, Yen Ju %A Déposé, Emilien %A Souissi, Anissa %A Hénard, Stéphane %A Schaadt, Mike %A Mastro, Ed %A Souissi, Sami %K California grunion %K Copepod %K larval rearing %K live feed %K quiescent egg %K RCC350 %B Aquaculture Research %V 51 %P 3054–3058 %8 jul %G eng %U https://onlinelibrary.wiley.com/doi/10.1111/are.14637 %R 10.1111/are.14637 %0 Journal Article %J Aquaculture Research %D 2017 %T Changes in fatty acids profile, monosaccharide profile and protein content during batch growth of Isochrysis galbana (T.iso) %A Gnouma, Asma %A Sadovskaya, Irina %A Souissi, Anissa %A Sebai, Khaled %A Medhioub, Amel %A Grard, Thierry %A Souissi, Sami %K fatty acids %K growth phases %K Isochrysis galbana (T.iso) %K monosaccharides %K proteins %K RCC1349 %X Abstract To investigate the nutritional value of the marine micro-alga Isochrysis galbana Tahitian Isochrysis strain (T.iso) as an alternative feed for aquaculture during culture age, its biochemical composition was studied under autotrophic and controlled culture conditions at different growth stages: exponential phase, early and late stationary phases and decay phase. Analysis showed that C14:0, C16:0, C16:1, C18:4 (n-3) and C22:6 (n-3) were the most abundant fatty acids in this alga at different growth stages. The highest values of monounsaturated fatty acids were recorded at the late stationary and the decay phases. However, the highest levels of polyunsaturated fatty acids were observed at the early stationary phase. At all growth stages, I. galbana (T.iso) contained arabinose, xylose, mannose, galactose and glucose. Glucose represented the main sugar, and its content per dry alga biomass weight increased with increasing age of the culture and reached about fourfold in the decay phase. The maximum protein content was also observed during this last phase. %B Aquaculture Research %V 48 %P 4982–4990 %8 sep %G eng %U https://doi.org/10.1111/are.13316 %R 10.1111/are.13316 %0 Journal Article %J Bulletin of Environmental Contamination and Toxicology %D 2017 %T Removal and biodegradation of phenanthrene, fluoranthene and pyrene by the marine algae rhodomonas baltica enriched from north atlantic coasts %A Arias, Andrés H %A Souissi, Anissa %A Glippa, Olivier %A Roussin, Marion %A Dumoulin, David %A Net, Sopheak %A Ouddane, Baghdad %A Souissi, Sami %K RCC350 %X This study is focused on the removal, accumulation and degradation of three environmental ubiquitous polycyclic aromatic hydrocarbons (PAHs), phenanthrene (PHE), fluoranthene (FLA) and pyrene (PYR), by the marine alga Rhodomonas baltica enriched from the English Channel. After separation, purification and culture in several phases, R. baltica was exposed to PAH concentrations that are frequently encountered in the field in several anthropized environments. The results showed that R. baltica can grow under PAH stress, efficiently remove up to 70% of these compounds from the medium by 216 h of culture and selectively bioaccumulate PAHs by their hydrophobicity. Between PHE, FLA and PYR, phenanthrene was the compound with higher degradation rates throughout incubation. The equilibrium partitioning theoretical approach showed that physico-chemical partitioning, rather than active bioconcentration, was the major factor governing the bioaccumulation, outlying a potential application in decontamination processes for this species. %B Bulletin of Environmental Contamination and Toxicology %V 98 %P 392–399 %G eng %U https://doi.org/10.1007/s00128-016-1967-4 %R 10.1007/s00128-016-1967-4