نتایج جستجو برای: scomberomorus commerson
تعداد نتایج: 226 فیلتر نتایج به سال:
Türkiye kıyılarından bildirilen yabancı balık türü sayısı 80'e ulaşırken, Ege Denizi 44'tür. Diğer taraftan, İzmir Körfezi'nden Lessepsiyen 15'tir. türleri sırasıyla Saurida lessepsianus, Lagocephalus sceleratus, Siganus rivulatus, S. luridus, Scomberomorus commerson, Bregmaceros nectabanus, Champsodon vorax, Etrumeus golanii, Stephanolepis diaspros, Nemipterus randalli, Upeneus moluccensis, He...
The present research was undertaken in order to measure the concentrations of heavy metals in tissues of the Scomberomorus commerson and Scomberomorus guttatus in Bushehr seaport. 20 samples of S. commerson and 20 samples of S. guttatus were cathed randomly from Bushehr seaport. After biometry of fish, the tissue samples were taken from muscles and liverand chemical digestion of the samples wer...
Ciguatera Fish Poisoning (CFP) is a tropical disease caused by the consumption of fish contaminated with ciguatoxins (CTXs). Currently, the only feasible prevention methods for CFP are to avoid the consumption of fish of certain species from some regions, avoid larger fish of certain species, or avoid all fish caught from specific regions. Here, we quantified levels of P-CTX-1B in Spanish Macke...
Fish is a vital food for humans and many animals. We report an environmental monitoring study to assess the trace metals in fish species caught from Arabian Sea and commercially available in the coastal city Karachi, Pakistan. Heavy metals such as copper, iron, lead and cadmium were determined in the skin, fillet and heart of the fish species Pampus argenteus, Epinephelus chlorostigma, Rachycen...
Seven major commercially important marine fisheries species, Fenneropenaeus indicus, Chaceon quinquedens, Lethrinus nebulosus, Scomberomorus commerson, Plectropomus pessuliferus, Pampus argenteus, and Epinephelus summana were seasonally sampled from Jeddah main local market, Saudi Arabia. The heavy metals, namely arsenic (As), cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), le...
یکی از مهم ترین اطلاعات لازم در برآورد مدل های ارزیابی ذخایر، اطلاع از ضرایب رابطه طول و وزن یک گونه می باشد. در این مطالعه نتایج رابطه طول و وزن ماهی شیر (scomberomorus commerson) در سال های 1382 تا 1385 جهت بررسی روند تغییرات ضرایب a و b بر اساس رگرسیون غیرخطی مورد ارزیابی قرار گرفت. مقدار ضریب b به ترتیب سال؛ 76/2، 74/2، 70/2 و 71/2 برآورد گردید. همچنین نتایج نشان می دهد بین تغییرات ضرایب a ...
A new gillnet made from multiple mesh sizes ranging 125 to 180 mm of stretched (experimental gillnet) was tested under commercial fishing conditions compare the performance with that conventional gillnets a opening (control gillnet). Catch efficiency and size selectivity between two types were evaluated throughout one year in three different locations waters Vietnam. Experimental caught narrow-...
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