PENENTUAN STATUS STOK SUMBERDAYA RAJUNGAN (Portunus pelagicus Linnaeus, 1758) DENGAN METODE SPAWNING POTENTIAL RATIO DI PERAIRAN SEKITAR BELITUNG
نویسندگان
چکیده
منابع مشابه
Mercury 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 کاملThe 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...
متن کاملبررسی برخی از خصوصیات ریخت‌سنجی در خرچنگ شناگر آبی Portunus pelagicus (Linnaeus, 1758) در آب‌های خلیج فارس در استان هرمزگان
در این مطالعه برخی خصوصیات ریخت‌سنجی خرچنگ شناگر آبی Portunus pelagicus شامل طول و پهنای کاراپاس، طول و پهنای چنگال و پهنای شکم در دو جنسیت نر (151 عدد) و ماده (158 عدد) اندازه‌گیری و شیب رگرسیون بین رشد نسبی این پارامترها بررسی شد. نمونه‌برداری یک‌ساله از فروردین تا اسفند 1391 در سواحل خلیج فارس در بندرعباس با استفاده از تور مشتا انجام شد. آنالیز رشد نسبی بین وزن بدن با طول کاراپاس و نیز وزن ب...
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 کاملA chromosomal analysis of Nepa cinerea Linnaeus, 1758 and Ranatra linearis (Linnaeus, 1758) (Heteroptera, Nepidae)
An account is given of the karyotypes and male meiosis of the Water Scorpion Nepa cinerea Linnaeus, 1758 and the Water Stick Insect Ranatra linearis (Linnaeus, 1758) (Heteroptera, Nepomorpha, Nepidae). A number of different approaches and techniques were tried: the employment of both male and female gonads and mid-guts as the sources of chromosomes, squash and air-drying methods for chromosome ...
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ژورنال
عنوان ژورنال: Jurnal Penelitian Perikanan Indonesia
سال: 2015
ISSN: 2502-6542,0853-5884
DOI: 10.15578/jppi.21.2.2015.63-70