A5042927936- Parasite Biology and Host Interactions
- Marine Ecology and Invasive Species
- Planarian Biology and Electrostimulation
- Marine Biology and Ecology Research
- Cephalopods and Marine Biology
- Crustacean biology and ecology
- Species Distribution and Climate Change
- Marine Sponges and Natural Products
- Neurobiology and Insect Physiology Research
- Aquatic Invertebrate Ecology and Behavior
- Marine and environmental studies
- Identification and Quantification in Food
- Marine Invertebrate Physiology and Ecology
- Leech Biology and Applications
- Marine Bivalve and Aquaculture Studies
- Marine Biology and Environmental Chemistry
- Morphological variations and asymmetry
- Coleoptera Taxonomy and Distribution
- Ichthyology and Marine Biology
- Insect Utilization and Effects
- Fish Biology and Ecology Studies
Tunis El Manar University
2009-2024
Tunis University
2009-2024
Unidades Centrales Científico-Técnicas
2012
Consejo Superior de Investigaciones Científicas
2012
Museo Nacional de Ciencias Naturales
2011
The interrelationships of the flatworms (phylum Platyhelminthes) are poorly resolved despite decades morphological and molecular phylogenetic studies [1Ehlers U. Das Phylogenetische System der Plathelminthes.First Edition. Gustav Fischer Verlag, 1985Google Scholar, 2Laumer C.E. Giribet G. Inclusive taxon sampling suggests a single, stepwise origin ectolecithality in Platyhelminthes.Biol. J. Linn. Soc. Lond. 2014; 111: 570-588Crossref Scopus (50) Google Scholar]. earliest-branching clades...
Records of free-living flatworms (turbellarians) from Tunisian waters are scattered. Based on new material and published accounts, an annotated checklist flatworm species is provided. A total 29 recorded, including 18 with 11 only literature records. For each species, information systematics, habitats distribution supplied, together taxonomic or biological remarks. Three the acotylean polyclads Cestoplana rubrocinta Lang, 1884 Comoplana agilis (Lang, 1884) as well marine triclad Cercyra...
Abstract Saccular otoliths (sagittae) have long been shown to be species-specific and exhibit inland geospatial intra- interpopulation morphological differences with variations in environmental conditions. Here, we analysed outland sagittae shape, length ( Lo ), width Wo perimeter (Po), area (Ao), fluctuating asymmetry (FA) Chelon auratus males females collected from Ghar El Melh (Tunisia) Etoile Bay (Mauritania) stations assess whether shape morphometry differ between these two niches...
This Collective Article presents information about 30 species with records in eight countries (Greece, Israel, Italy, Montenegro, Slovenia, Spain, Syria and Türkiye) six ecoregions extending from the Alboran to Levantine Seas. The recorded belong Phyla (4 Chlorophyta, 1 Rhodophyta, Porifera, 3 Cnidaria, 2 Platyhelminthes, Arthropoda, Mollusca 15 Chordata) as follows: Chlorophyta: Didymosporangium repens, Ochlochaete hystrix Phaeophila hirsuta are reported for first time Aegean coasts of...
We document the specific patterns of egg plates, numbers and size embryos per cocoon major stages spiralian embryonic development in four Mediterranean polyclads. These include two cotylean species Prosthiostomum siphunculus (Delle Chiaje, 1828) Lang, 1884 Thysanozoon brocchii (Risso, 1818) Grube, 1840, both with Müller's larvae, directly developing acotylean Echinoplana celerrima Haswell, 1907 as well Imogine mediterranea (Galleni, 1976) JenningsandNewman, 1996 Götte's larva. The duration...
This study was carried out to investigate a paradigm of predation under natural conditions in Bizerta lagoon. The free-living marine polyclad flatworm Imogine mediterranea found feed on the commercial mussel Mytilus galloprovincialis. Such could represent real threat mytiliculture at this site. Our field experiments have shown that mortality as result active by is approximately 52% when one and prey were placed together same experimental container. We statistically significant relationship...
A revision of the genus Leptoplana Ehrenberg, 1831 in Mediterranean basin is undertaken. This deals withthe distribution and validity species known for area. The sub-species polyclad,Leptoplana tremellaris forma mediterranea Bock, 1913 elevated to specific level. comb.nov. redescribed from Lake Tunis, Tunisia. flatworm distinguished mainlyby having a prostatic vesicle provided with long diverticulum attached ventrally seminal vesicle, genital pit clos-er male pore than female one twelve-eyed...
The purpose of this study is to provide information on the leech fauna North Africa. This overview based primarily collected material, data from literature and material in museum collections. A total 37 species belonging 6 families 19 genera are presently known. Among these species, eight represent new records for African countries. report includes first Tunisia one freshwater leech, Helobdella stagnalis (Linneaus, 1758), marine Trachelobdella lubrica (Grube, 1840). Four taxa reported as...
Although the order Polycladida has been known from Mediterranean basin since XVIII century, many species have described insufficiently and in some cases erroneously identified. A revision of taxon undertaken with aim to contribute knowledge polyclads. This first contribution deals four found on Tunisian coasts: Echinoplana celerrima Haswell, 1907; Leptoplana tremellaris (O. F. Müller, 1774) Oersted, 1843; Theama mediterranea Curini-Galletti, Campus & Delogu, 2008 Imogine (Galleni, 1976)...
Abstract Based on light and electron microscopy observations, oogenesis in the cotylean polyclad Prosthiostomum siphunculus was investigated for first time. The numerous ovarian follicles are dispersed essentially dorsal parenchyma. In follicles, a ventral germinative zone with undifferentiated germs cells of different sizes growth larger growing abortive oocytes present. could be subdivided into four stages: (1) Oogonia dark nucleus dark, ribosome‐rich cytoplasm. (2) Early oocyte stage,...
This is the first study investigating spermatogenesis and spermatozoan ultrastructure in polyclad flatworm Prosthiostomum siphunculus. The testes are numerous scattered as follicles ventrally between digestive ramifications. Each follicle contains different stages of sperm differentiation. Spermatocytes spermatids derive from a spermatogonium remain connected by intercellular bridges. Chromatoid bodies present cytoplasm spermatogonia up to spermatids. During early spermiogenesis,...
Gastrotrichs (hairy bellies) are microscopic, acoelomate worms that live in freshwater and marine environments represent one of the significant components meiobenthic communities. There over 520 species, several them also found Mediterranean Sea. However, data on gastrotrich fauna from Tunisia is negligible, with nearly zero annotated records. We have initiated a series investigations along Tunisian shores to address this gap. Herein, we report four collecting sites northern coastline. Sandy...
<title>Abstract</title> We describe <italic>Phrikoceros jannetae</italic> sp. nov., a new cotylean polyclad species from Ghar El Melh lagoon, natural seawater lagoon situated in the north of Tunisia. The is characterized by black spots on dorsal surface contrast to white spotted colour pattern its congeners. provide some insights into biology this including plastic tentacle configuration and variability body form outline within same specimen. nov. was found among tunicates <italic>Ciona...
Gastrotrichs (hairy bellies) are microscopic, acoelomate worms that live in freshwater and marine environments represent one of the significant components meiobenthic communities. There over 520 species, several them also found Mediterranean Sea. However, data on gastrotrich fauna from Tunisia is negligible, with nearly zero annotated records. We have initiated a series investigations along Tunisian shores to address this gap. Herein, we report four collecting sites northern coastline. Sandy...
The aim of this work is to provide some important morphological, ecological and reproductive features 8 polyclad species from Tunisian waters belonging Acotylea: Echinoplana celerrima Haswell, 1907, Leptoplana mediterranea (Bock, 1913), Discocelis tigrina (Blanchard, 1847) Imogine (Galleni, 1976) Cotylea: Thysanozoon brocchii (Risso, 1818), Prosthiostomum siphunculus (Delle Chiaje, 1822), Yungia aurantiaca 1822) Prostheceraeus moseleyi (Lang, 1884). New data on distribution are added....
Between October 2013 and July 2014, 40 polyclad specimens were collected during the systematic sampling of mussel beds along coast Sinop Peninsula (Western Black Sea). Six species identified, including a new Cryptocelis species. sinopae sp. nov. is characterized by possessing prostatic vesicle lined with ridged fold in its anterior end presence two secretory glandular folds distal dorsal wall male atrium. Additionally, records Echinoplana celerrima Haswell, 1907 Leptoplana mediterranea...
Abstract Several endemic species of Blaps occur in Tunisia, and the nefrauensis has been reported Moulares (urban zone west-central Tunisia), where it lives reproduces home gardens old buildings. The aim this work is to study life cycle darkling beetle, considering both field laboratory rearing conditions. As a result, beetle different developmental stages (egg, larva, prepupa, pupa, adult) that last about 15 months. Each year during same period, adults emerge (early summer) expire (late...
The Polyclad fauna of the northwest Tunisian coasts is still unexplored. This first investigation flatworms collected by scuba diving in waters. Three species belonging to three different families and genera are reported re-described. Echinoplana celerrima (Haswell, 1907) was found feed on ascidian Ciona intestinalis (Linnaeus, 1767) at 20 m depth Thysanozoon brocchii (Risso, 1818) observed eat sponges Dysidea tupha (Martens, 1824) 16 depth. Prosthiostomum siphunculus (Delle Chiaje) creeping...