Introduction to Oceanographic and Biological Aspects of the Red Sea

2018 ◽  
pp. 1-9 ◽  
Author(s):  
Najeeb M. A. Rasul ◽  
Ian C. F. Stewart ◽  
Peter Vine ◽  
Zohair A. Nawab
Keyword(s):  
Red Sea ◽  
Biological Aspects

scholarly journals Biological studies and assessment of the exploitation status of the green tiger shrimp Penaeus semisulcatus from Jizan Area, Red Sea

2017 ◽  
Vol 26 (2) ◽  
pp. 23-34
Author(s):  
Lafi S Alsolami and Hassan A Jastania Lafi S Alsolami and Hassan A Jastania
Keyword(s):  
Red Sea ◽  
Carapace Length ◽  
Growth Parameters ◽  
Biological Information ◽  
Tiger Shrimp ◽  
Biological Studies ◽  
Penaeus Semisulcatus ◽  
Biological Aspects ◽  
Exploitation Status ◽  
Annual Mortality

The present study was undertaken to investigate some biological aspects of the green tiger shrimp Penaeus semisulcatus in order to provide the biological information required for its proper management of the fishery in Jizan area, Red Sea. Growth parameters were calculated as (L∞ = 94.40; K = 0.81; to = -0.2); maximum age tmax = 3.7037 years; growth performance indices (ØL = 3.86; Øwt = 1.36). Carapace length at which P. semisulcatus females attained 50% of maturity was 38 mm. The annual mortality coefficients were (Z = 3.124 year-1; M = 1.163 year-1 & F = 1.961 year-1). Carapace length and age at first capture were 35.73 mm and 0.387 year, while carapace length and age at recruitment were 28.52 mm and 0.24 year, respectively. The length at first sexual maturity was found to be 38 mm, while the carapace length at first capture L50 was estimated as 35.73 mm .This indicates that there is a poor opportunity for the recruits of P. semisulcatus in Jizan area to spawn before fishing which is considered an important factor that would lead to overexploitation the stock. The estimated exploitation ratio (0.628) was higher than Emax (0.581) which indicates that, the fisheries status of this species under study is in overexploited.

scholarly journals MENGENAL KEPITING Ashtoret lunaris (FORSKAL, 1775) DARI SUKU MATUTIDAE (CRUSTACEA: DECAPODA: BRACHYURA)

OSEANA ◽  
2018 ◽  
Vol 43 (2) ◽  
pp. 24-33
Author(s):  
Ernawati Widyastuti
Keyword(s):  
South Africa ◽  
Red Sea ◽  
Full Moon ◽  
Wide Distribution ◽  
Coastal Areas ◽  
Feeding Habit ◽  
Soft Substrate ◽  
Biological Aspects

KNOWING Ashtoret lunaris (FORSKAL, 1775) FROM MATUTIDAE (CRUSTACEA: DECAPODA: BRACHYURA). Ashtoret lunaris is a species of genus Ashtoret from Matutidae. This crab is known as “yellow moon crab”, because it has a yellow and rounded carapace like a full moon. These crabs are nocturnal and live in coastal areas with soft substrate. The crab has a wide distribution spanning from the Red Sea to South Africa, Asia and Australia. Some biological aspects such as morphology, systematic, habitat, feeding habit, distribution and others are discussed in this paper.

scholarly journals Biological aspects of some Goatfish (Mullidae) from the southern Egyptian Red Sea; Hurghada to Shalateen

2019 ◽  
Vol 23 (3) ◽  
pp. 91-101
Author(s):  
Rasha A. Heneish ◽  
Manal M. Sabrah ◽  
Azza A. El-Ganainy
Keyword(s):  
Red Sea ◽  
Biological Aspects

Biological aspects of prostaglandins

1974 ◽  
Vol 133 (1) ◽  
pp. 30-50 ◽  
Author(s):  
N. H. Andersen
Keyword(s):  
Biological Aspects
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