نتایج جستجو برای: clupeidae
تعداد نتایج: 207 فیلتر نتایج به سال:
Despite being one of the richest Neogene deposits marine fossil vertebrates along Pacific coast South America, no detailed study bony fishes from Bahía Inglesa Formation has been carried out. Through revision historical collections Caldera Paleontological Museum, we describe 27 remains fishes. Fossils described here are distributed in 13 taxa. Among these, Sardinops sp. cf. S. sagax (Clupeidae)...
طی دو سال بررسی در سالهای 1374-1375 و 1376-1377 در منطقه ساحلی ایران، در شمال خلیج فارس . مطالعه ایکتیوپلانکتونها، با هدف شناسایی مراحل مختلف تکامل ماهیانی که این مناطق را برای تخم ریزی و پرورش لارو خود انتخاب نموده اند. انجام گردید. نمونه گیریها بطور ماهانه از 12 خور در منطقه ماهشهر-آبادان و 4 ایستگاه در منطقه ساحلی غرب خوزستان، با استفاده از توردوقلو (بونگو) با اندازه چشمه 500 میکرون و بطریق ...
The aim of the present study was to investigate the reproduction of three species of kilka, including common, anchovy and bigeye kilka in the southeastern waters of Caspian Sea. This study was conducted during 2010 and 6476 specimens were fortnightly collected from fishing landing site. Body weight and fork length were measured. The samples were dissected and female gonads were weighed. Sexual ...
We used 50 specimens of Alosa braschnikowi (A. brschnikowi) to study the growth effect on Gill raker morphology. Gill rakers counted as 26-47 which increased in relation to increase in TL (P<0.05). Gill raker lengths and the length:width ratio decreased with a high coefficient of relationships (R2=0.818 and 0.634 subsequently) regarding the increase of TL. The proportion of gill raker length to...
Fishing methods, catches composition and exploited biomass in the Aby lagoon (Adiaké, Côte d’Ivoire)
Ivorian lagoon water bodies contribute to the fight against food insecurity through fisheries. They provide fresh and competitive products local population. Thereby, strategies for their rational sustainable exploitation must be put in place. This study aimed at contributing improvement of fishing activities Aby lagoon. It is result three months surveys (from January March 2020) with fishermen ...
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