A5053265416- Marine Invertebrate Physiology and Ecology
- Marine and coastal ecosystems
- Marine Ecology and Invasive Species
- Marine Toxins and Detection Methods
- Marine Biology and Ecology Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine and environmental studies
- Yersinia bacterium, plague, ectoparasites research
- Microplastics and Plastic Pollution
- Identification and Quantification in Food
- Parasite Biology and Host Interactions
- Venomous Animal Envenomation and Studies
- Effects and risks of endocrine disrupting chemicals
- Evolutionary Game Theory and Cooperation
- Marine Biology and Environmental Chemistry
- Classical Antiquity Studies
- Protist diversity and phylogeny
- Fish Biology and Ecology Studies
- Allelopathy and phytotoxic interactions
- Diatoms and Algae Research
- Microbial Community Ecology and Physiology
- Cephalopods and Marine Biology
- Marine Sponges and Natural Products
- Toxic Organic Pollutants Impact
- Aquaculture disease management and microbiota
Institution de la Recherche et de l’Enseignement Supérieur Agricoles
2016-2022
Institut National Agronomique de Tunisie
2003-2021
University of Carthage
2016-2021
Tunis El Manar University
2014-2020
Carthage College
2014-2015
Harmful benthic dinoflagellates, usually developing in tropical areas, are expanding to temperate ecosystems facing water warming. Reports on harmful species particularly scarce the Southern Mediterranean Sea. For first time, three thermophilic dinoflagellates (Ostreopsis cf. ovata, Prorocentrum lima and Coolia monotis) were isolated from Bizerte Bay (Tunisia, Mediterranean) monoclonal cultures established. The ribotyping confirmed morphological identification of species. Maximum growth...
Science is addressing global societal challenges, and due to limitations in research financing, scientists are turning the public at large jointly tackle specific environmental issues. Citizens therefore increasingly involved monitoring programs, appointed as citizen with potential delivering key data near no cost address therein fostering scientific knowledge advising policy- decision-makers. One of first most successful examples marine science Mediterranean represented by integrative...
Macrophytes are known to release allelochemicals that have the ability inhibit proliferation of their competitors. Here, we investigated effects fresh leaves two magnoliophytes (Zostera noltei and Cymodocea nodosa) thalli macroalgae Ulva rigida on three HAB-forming benthic dinoflagellates (Ostreopsis cf. ovata, Prorocentrum lima, Coolia monotis). The C. nodosa U. were also tested against neurotoxic planktonic dinoflagellate Alexandrium pacificum Litaker sp. nov (former catenella). Co-culture...
The alien Erythraean jellyfish Rhopilema nomadica was first recorded in Tunisia waters (Gulf of Gabes) 2008. Subsequently it sighted the Bizerte Channel and Gulf Tunis where has been regularly observed since 2010 during summer autumn months.
Jellyfish are of particular concern for marine finfish aquaculture. In recent years repeated mass mortality episodes farmed fish were caused by blooms gelatinous cnidarian stingers, as a consequence wide range hemolytic, cytotoxic, and neurotoxic properties associated cnidocytes venoms. The mauve stinger jellyfish Pelagia noctiluca (Scyphozoa) has been identified direct causative agent several documented events both in Northern Europe the Mediterranean Sea aquaculture farms. We investigated...
Abstract Jellyfish (Cnidaria and Ctenophora) are an essential component of marine ecosystems represent a potential effect, positive or negative, for several economic activities. blooms non-indigenous species (NIS) introduction can shift ecological community structure energy transfer. Despite their importance in ecosystem function services, knowledge jellyfish fauna diversity phenology largely lacking the southern Mediterranean Sea. Here, we present overview current state biodiversity...
Microphytoplankton composition and its relationships with hydrology nutrient distributions were investigated over 24 months (December 1993 - November 1995) in the Bay of Tunis ( SW Mediterranean Sea). A new index, ‘Specific Preference Index’ (SPI) obtained by computing median value each parameter weighed numerical species density was developed. Using this between temperature, salinity major nutrients analysed. The distribution chlorophyll a did not show clear correlation microplankton...
Studies considering the biology and ecology of toxic bloom-forming species, Alexandrium pseudogonyaulax, are rare. Our results highlight five features not described before in A. pseudogonyaulax life cycle: (i) gametes showed two modes conjugation, anisogamy isogamy, (ii) sexual conjugation occurs either dark or light phase by engulfment a fusion process, (iii) presence planozygote newly formed cysts monoclonal culture suggests homothallism, (iv) have very vesicular content mostly...
The Australian spotted scyphomedusa Phyllorhiza punctata was recorded for the first time in Tunisian waters August 2012, lagoon of Bizerte (Tunisia). Metaephyrae and juveniles occurred simultaneously 2012. occurrence adult medusae detected from September to November October 2013. This is second record a reproducing population P. Mediterranean Sea. low abundance mesozooplankton summer autumn 2012 coincides temporally with highest density lagoon, suggesting that predation by this alien...
The cubozoan jellyfish Carybdea marsupialis Linnaeus, 1758 is recorded for the first time from eastern Tunisian coast (Hammamet beach). A few specimens (three adult individuals) were in July 2005. In spite of several monitoring campaigns carried out along coasts recent years, new records C. same location only made years later, and August 2014, consisting aggregations (mean density 1.1 ± 1.0 ind. m−3), which may pose a severe threat to bathers due their painful stings. mean morphometric...
The in situ reproductive activity of the copepods Centropages ponticus and Temora stylifera was investigated autumn 2006 Bizerte Channel relation to abiotic factors phytoplankton composition. Egg production rate (EPR), hatching success (HS) nauplii survival both species were measured from samples taken daily over 45 days September 28 November 11 then weekly 8 supplementary weeks. Over this period, C. T. had mean EPRs 13.7 ± 0.3 35.2 3.8 eggs f−1 day−1, HS 24.4 1.6 50.4 5.5%, respectively....
Science is addressing global societal challenges and, due to limitations in research financing, scientists are turning public at large jointly tackle specific environmental issues. Citizens therefore increasingly involved monitoring programs, appointed as citizen with potential delivering key data near no cost address challenges, so fostering scientific knowledge and advise policy- decision-makers. One of the first most successful example marine science Mediterranean represented by...