Salwa Hamdi Livres

Focusing on the nutritional analysis of various edible crustaceans, this work examines the protein, carbohydrates, lipids, vitamins, and minerals in species such as shrimps and crabs. It highlights their potential as nutraceuticals and their future role in pharmaceutical industries. Additionally, the study addresses the ecological impact of crawfish on the Nile and suggests biological management strategies, proposing their use as a cost-effective food source for aquatic animals. Comparative studies with high-value marine shrimps further enrich the research.

The study investigates the molluscicidal effects of various plant extracts and synthetic agents on freshwater snails, particularly Biomphalaria alexandrina and Bulinus truncatus. It evaluates the effectiveness of different extraction methods and concentrations of natural compounds, including monoterpenes like Eugenol, Linalool, and Thymol. The research aims to assess the impact of these agents on snail reproduction and biochemical activities, exploring both chemical and biological control methods for managing snail populations.

The study investigates the impact of pesticide and heavy metal contamination on various snail species, specifically Biomphalaria alexandrina and Helisoma duryi. It evaluates the biochemical and molecular effects of pesticides like Atrazine and Roundup, as well as Malathion and Deltamethrin, alongside the influence of aluminum chloride and zinc sulphate. The research highlights the growing concern over heavy metals in snails, emphasizing their potential as bioindicators for assessing water pollution and its implications for public health.

The study investigates the physiological changes in liver and kidney functions of albino mice infected with the metacercariae of Prohemistomum vivax, sourced from Nile fish. Key enzymes such as LDH, G6PDH, 6PGDH, ACP, and ALP were analyzed through electrophoresis before and after a four-week infection period. Findings suggest a long-term health risk to humans from consuming infected fish, emphasizing the importance of sourcing fish from clean waters or farms to avoid potential hazards associated with this parasitic infection.

This study investigates the concentration levels of essential trace metals (Fe, Cu, Zn, Co, Se) and non-essential metals (Hg, Pb, Cd) in the edible muscle tissues of various crustacean species. It assesses bioaccumulation using the Metal Pollution Index to evaluate these organisms as bioindicators of pollution in the Mediterranean Sea, Red Sea, and Arabian Gulf, ensuring seafood safety. Significant variations in metal levels were found based on species, sex, and environmental conditions. Additionally, it evaluates the nutritive quality of the mantis shrimp and its relationship with pollution.

One crustacean shell and 24 gastropod shells related to 13 different families are collected and described from Ras Sudr region (northeast Gulf of Suez), Egypt. These are one species from cirripedia, one species from vermetidae, three species from Trochidae, one species from Turbinidae, one species from Neritidae, one species from Turritellidae, five species from cerithiidae, three species from Strombidae, one species from Fasciolariidae, one species from Melongenidae, four species from Muricidae, two species from Cypraeidae and one species from Naticidae. Thirty three bivalved shells related to 18 different families are collected and described from the Red Sea in the Ras Sudr region (northeast of the Gulf of Suez), Egypt. Three species from the Arcidae, 3 species from the Mytilidae, one species from the Glycymerididae, one species from the Limopsidae, one species from the Pteriidae, one species from the Plicatulidae, one species from the Pectinidae, one species from the Spondylidae, 6 species from the Chamidae, one species from the Lucinidae, 3 species from the Cardiidae, 2 species from the Tridacninae, one species from the Mactridae, one species from the Mesodesmatidae, etc.