Size at Sexual Maturity and Fecundity of the Blue Swimmer Crab, Portunus pelagicus (Linnaeus, 1758) along the Coast of Karachi, Pakistan
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چکیده
منابع مشابه
The Distribution of the Barnacle Epizoites, Chelonibita patula (Ranzani) on Blue Swimmer Crab, Portunus pelagicus (Linnaeus, 1758)
The frequency and distribution of barnacle (Chelonibia patula) on blue swimmer crab Portunus pelagicus off Persian Gulf Coasts were studied. A total of 545 crabs were examined and were of the same size range. The carapace width rangof crab werefrom 6.5cm to 16.5cm, carapace length from 4 to 8cm and weighed 80.5g to 220.4g. The barnacles were attached to the carapace, abdomen and walking legs. T...
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The temperature of habitat water has a drastic influence on the behavioral, physiological and biochemical mechanisms of crustaceans. Hyperglycemia is a typical response of many aquatic animals to harmful physical and chemical environmental changes. In crustaceans increased circulating crustacean hyperglycemic hormone (CHH) and hyperglycemia are reported to occur following exposure to several en...
متن کاملMercury Concentration in Tissues of Blue Swimming Crab, Portunus pelagicus (Linnaeus, 1758) and Sediments from Persian Gulf Coasts, Iran
Persian Gulf supports diverse ecosystems and biota in need of remediation and protection and metal data from this region is needed. The levels of mercury in tissues of blue swimming crab, Portunus pelagicus and sediments from the Persian Gulf coasts, south Iran were investigated. Mercury analysis was performed by Atomic Absorption Spectrophotometer. The distribution pattern of mercury in the ti...
متن کاملmorphometric characteristics of the blue swimming crab, portunus pelagicus (linnaeus, 1758) from the persian gulf, bandar abbas, iran
in this study, some external morphometric characters viz. carapace width (cw) and length (cl), chelar propodus width (chw) and length (chl) and abdominal width (aw) and also body weight (bw) of the blue swimming crab, portunus pelagicus (linnaeus, 1758), were examined. relative growth and regression slope compared among these parameters between 151 males and 158 females. specimens were collecte...
متن کاملReproductive biology of the blue swimmer crab (Portunus pelagicus, Decapoda: Portunidae) in five bodies of water on the west coast of Australia
Portunus pelagicus was collected at regular intervals from two marine embayments and two estuaries on the lower west coast of Australia and from a large embayment located approximately 800 km farther north. The samples were used to obtain data on the reproductive biology of this species in three very different envi ronments. Unlike females, the males show a loosening of the attachment of the a...
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ژورنال
عنوان ژورنال: Pakistan Journal of Zoology
سال: 2020
ISSN: 0030-9923
DOI: 10.17582/journal.pjz/20170427100439