SOME ASPECTS ON NITROGEN METABOLISM IN THE CRAB PORTUNUS PELAGICUS (LINNAEUSj
SOME ASPECTS ON NITROGEN METABOLISM IN THE CRAB PORTUNUS PELAGICUS (LINNAEUSj By N. F. ABDEL HAMID* *National Institute of Oceanography & Fisheries, Alexandria, Egypt. Key Words: Crustacea, Portunus, Physiology, Nitrogen, Metabolism. ABSTRACT The effects ofextirpation ofthe eyestalks (ESX) from, and ofinjection ofextracts ofeyestalks (ESE) into eyestalkless crabs have been examined for the common nitrogenous components […]
PRELIMINARY OBSERVATIONS OF THE SEA GRASS CYMODOCEA NODOSA (UCRlA) ASCHERSONIN THE MEDITERRANEAN WATERS OF ALEXANDRIA, EGYPT
PRELIMINARY OBSERVATIONS OF THE SEA GRASS CYMODOCEA NODOSA (UCRlA) ASCHERSONIN THE MEDITERRANEAN WATERS OF ALEXANDRIA, EGYPT H.M.MOSTAFA* Department of Oceanography, Faculty of Science, University of Alexandria, Moharrem Bey, 21511-Alexandria-Egypt. Key Words: Phenology; Seagrasses; Cymodocea nodosa; Alexandria; Egypt. ABSTRACT Samples ofthe seagrass Cymodocea nodosa (Ucria) Ascherson were collected seasonally during 1993 from seagrass bed at Montazah […]
POPULATIONDYNAMICS OF TWO PICAREL SPECIES IN THE MEDITERRANEAN WATERS, EGYPT
POPULATIONDYNAMICS OF TWO PICAREL SPECIES IN THE MEDITERRANEAN WATERS, EGYPT By s. L RlZKALLA·* . ·National Institute of Oceanography and Fi~heries, Alexandria,. Egypt. key-wor.ds: Fish Population dynamics, Spicara smaris – Spicaraflexousa. ABSTRACT’ Population dynamics of two fish stocks belonging to family: Centracanthidae Spicara smaris (L.) and Spicaraflexousa (Raj) were studied Samples were collected’during 1993 from […]
METAL – INDUCED INTRINSIC RESPONSE OF THE FEMALE CICHLID ETROPLUS MACULATUS (BLOCH) FROM SOUTH WEST COAST OF INDIA
METAL – INDUCED INTRINSIC RESPONSE OF THE FEMALE CICHLID ETROPLUS MACULATUS (BLOCH) FROM SOUTH WEST COAST OF INDIA BY K. B. VEENA *, C. K. RADHAKRISHNAN & J. CHACKO * School of Marine Sciences, Fine Arts Avenue, COc/lin University ofScience and Technology, Cochin-682 016, India. Key Words: FISH PHYSIOLOGY; CICHLIDAE, INDIA. ABSTRACT The manifestation of […]
KARYOLOGICAL STUDIES ONAFRICANCATFISH, Clarias gariepinus ( Burchell, 1822)
KARYOLOGICAL STUDIES ONAFRICANCATFISH, Clarias gariepinus ( Burchell, 1822) By SH. A. BAKHOUM* *National Institute of Oceanography and Fisheries, Alexandria, Egypt. Key words: Genetics, Cat fish. ABSTRACT Karyological studies on African catfish Clarias garzeplnus originating from the Egyptian inlandwaters (Lake Mariut) have been done to determine ifit reveals an identical karyotype to the other strains of […]
INTER-SPECIFIC VARIATION
INTER-SPECIFIC VARIATION median process and their greatest width in the middle reaching from one and half to two and half of the premaxillary band. There is no published information regarding the type differences in the shape of vomerine teeth of this species i.e., category having vomerine teeth without a posterior median process, which was designated […]
IMPROVEMENT OF HOSHA FISH FARMING METHOD TO PROTECT THE LAKES’ FISHERIES IN EGYPT
IMPROVEMENT OF HOSHA FISH FARMING METHOD TO PROTECT THE LAKES’ FISHERIES IN EGYPT By M. A. ESSA* *National Institute of Oceanography and Fisheries, Alexandria, Egypt Key words: Fish farming, (Lakes). , ‘ ABSTRACT Hosha is a local Egyptian name for a unique form offishing technique generally operating as a fish harvesting method in the Egyptian […]
FOOD AND FEEDING HABITS ‘OF GURNARDS, TRIGLA LUCERNA Linnaeus, 1758 AND TRIGLOPORUS LASTOVISA (BrOnnich, 1768) IN THE EGYPTIAN MEDITERRANEAN WATERS
FOOD AND FEEDING HABITS ‘OF GURNARDS, TRIGLA LUCERNA Linnaeus, 1758 AND TRIGLOPORUS LASTOVISA (BrOnnich, 1768) IN THE EGYPTIAN MEDITERRANEAN WATERS By S. N. FALTAS* *National Institute of Oceanography and Fisheries, Alexandria, Egypt. Key-words: Gurnards, Trigla lucerna, Trigloporus lastovisa, feeding habits. ABSTRACT Stomach contents of the two gurnards, Trigla lucerna L. and Trigloporus lastovisa (BrOn.) captured […]
