Mortality of whipfin fish, Gerres filamentosus (Cuvier, 1829) in Hurghada Red Sea, Egypt

Faculty Science Year: 2021
Type of Publication: ZU Hosted Pages: 18
Authors:
Journal: Bulletin of Faculty of Science, Zagazig University Center of Scientific research studies Zagazig University Volume:
Keywords : Mortality , whipfin fish, Gerres filamentosus (Cuvier,    
Abstract:
A total of 669, Gerres filamentosus (Cuvier, 1829) were randomly collected (January-December 2010) of trawling catch from Hurghada area ( Latitude 27o.26’ and Longitude 33o.81’), in the Egyptian Red Sea coast. Due to no detailed study on mortality of this fish species, the present work was undertaken to evaluate the impact of fishing on a relatively small studied in the region and get information on the mortality parameters and exploitation rate based on the previous origin article by me (this single author) on age and growth studies conducted in 2017. This study showed that the growth parameters of the population as follow: L∞ = 42.1222 cm, K= 0.2946 yr-1 and t0 = 0.0347 (Combined Sexes). Total mortality (Z) was -0.708, -0.4786 and -0.5553 for males, females and combined sexes, respectively. Natural mortality (M) was 0.7285, 0.7100 and 0.7056 for males, females and combined sexes, respectively. Fishing mortality (F) was -1.4365, -1.1886 and -1.2609 for males, females and combined sexes, respectively. The exploitation rate (E): 2.0289, 2.4835 and 2.2707 for males, females and combined sexes, respectively. Proved that this species is under exploitation by trawling method. Relative Yield per Recruit (Y-/R) was -1.6285, -2.0209 and -1.9693 for males, females and combined sexes, respectively.
   
     
 
       

Author Related Publications

  • Taher Mohammed Ahmed AbuAlnasr, "EFFECTS OF pH ON GROWTH INDEX, BLOOD PHYSIOLOGICAL PARAMETERS AND SOME OF DIGESTIVE ENZYMES OF THE NILE TILAPIA FISH, Oreochromis niloticus (LINNAEUS, 1758)", Merit Journal of AGRICULTURE AND SOIL, 2017 More
  • Taher Mohammed Ahmed AbuAlnasr, "The effect of sesame intake on adult albinorat testis during sildenafil long-termadministration", MIRT JOURNAL, 2021 More
  • Taher Mohammed Ahmed AbuAlnasr, "Histological changes in the Testes of the fish, Gerres filamentosus (Cuvier, 1829) during the reproductive cycle in the Hurghada Red Sea, Egypt", 5th International Conference on Agriculture,Environment and Biological Sciences (ICAEBS-16), 2016 More
  • Taher Mohammed Ahmed AbuAlnasr, "Effect of dietary protein on the reproductive performance and biochemical composition of muscle of Nile tilapia", Journal of Faculty of Science Zagazig University, 2014 More
  • Taher Mohammed Ahmed AbuAlnasr, "Oocyte developments on cultured species Oreochromis niloticus (Linnaeus, 1758)", zagazig University International conference 10th, 2015 More

Department Related Publications

  • Samir Abdullah Taha, "Effect of Artemether on infectivity of Schistosoma haematobium larval stages to Bulinus truncatus snails and to Hamster.", كلية العلوم, 2013 More
  • Mahmoud Abdulaaty AbdelMoneim, "Histological abnormalities in hepatopancreas of Procambarus clarkii (Decapoda: Cambaridae) exposed to Cu, Cd and Hg.", Egyptian Journal of Applied Sciences, 2002 More
  • Reham Zakaria Mustafa Mohammed Hamza, "Monosodium glutamate induced testicular toxicity and thepossible ameliorative role of vitamin E or selenium in male rats", El-Sevier, 2014 More
  • Amira Ibrahim Mahmoud Elkabbaty, "Light and Scanning electron microscope studies on the nematode Aplectana macintoshii Travassos, 1931(ascaridida:cosmocercidae) infecting the toad Bufo regularis in Egypt.", جمهورية مصر العربية, 2009 More
  • Amira Ibrahim Mahmoud Elkabbaty, "Susceptibility of Arabian ranid frogs Rana ridibunda to infection of platyhelminthes and nematodes in Saudi Arabia.", كلية التربية- جامعة عين شمس, 2008 More
Tweet