نتایج جستجو برای: alburnoides bipunctatus
تعداد نتایج: 194 فیلتر نتایج به سال:
The chromosomal spread and karyotype of Spirlin (Alburnoides bipunctatus) from Zabol region were identified using tissue squashing techniques with injection of 0.5ml/100g body weight of 0.01% Colchicines solution in fish fingerlings. Kidney and gill tissues were extracted and chopped in KCl 0.075M for 30 min and fixed in Carnoy solution in 3 stages. The chromosomal spreads were stained in 20% G...
found in iran, alburnoides bipunctatus and alburnus filippii. the chromosomes of these species were compared using giemsa staining and silver-staining (ag) techniques to describe the karyotypes. both species possess 2n = 50 chromosomes with no detected sex heteromorphism. the karyotypes were distinct, composed of 7 pairs of metacentric, 10 pairs of submetacentric, and 8 pairs of subtelo-acrocen...
A new species of threadfin bream, Nemipterus flavomandibularis, from the Western Indian Ocean is described and figured. The new species appears most closely related to N. bipunctatus (Valenciennes), but differs principally in colour pattern: N. flavomandibularis is distinct from N. bipunctatus in having two yellow bands on the snout, the upper lip narrowly edged with yellow; and lower lip and c...
The larval development of the nematode Contracaecum rudolphii (Rudolphi, 1819), a common parasite of the proventriculus of cormorants, was experimentally studied. Within the eggs cultivated in freshwater under laboratory temperatures of 20-22 degrees C, the developing larva undergoes two moults on days 4-5, attaining the third larval stage. Most of the ensheathed third-stage larvae, 291-457 mic...
In this study we have performed a comprehensive genotoxicological survey along the 900 rkm of the Sava River. In total, 12 sites were chosen in compliance with the goals of GLOBAQUA project dealing with the effects of multiple stressors on biodiversity and functioning of aquatic ecosystems. The genotoxic potential was assessed using a complex battery of bioassays performed in prokaryotes and aq...
Horizontal bar rack bypass systems (HBR-BS) are characterized by a horizontal (HBR) with narrow clear spacing of 10–20 mm and an adjacent (BS) to efficiently protect guide downstream moving fish at water intakes. The small may lead operational challenges, such as clogging high head losses. This study investigated whether combining HBR low-voltage electric field (e-HBR) allows one increase the w...
Alburnoides manyasensis, sp. n., is described from the Koca Stream (Lake Manyas drainage, Marmara Sea basin) in Anatolia. It is distinguished from all species of Alburnoides in Turkey and adjacent regions, Alburnoides tzanevi (Rezovska [Rezve], Istranca and Terkos streams in the western Black Sea drainage), Alburnoides cf. smyrnae (Banaz Stream, a drainage of Büyük Menderes River, Aegean Sea ba...
سن و رشد و تولید مثل ماهی خیاطه (Alburnoides bipunctatus) در رودخانه زرین گل از مهر 83 تا شهریور 84 به‌صورت ماهانه بررسی گردید. بزرگترین نمونه صید شده یک ماده با طول کل 110 میلی‌متر با سن +4 بود و بزرگترین نر مشاهده شده هم دارای 95 میلی‌متر کل با سن +4 بود. هر دو جنس نر و ماده از 5 طبقه سنی تشکیل شده بودند. در هر دو جنس طبقه سنی +3 فراوانترین گروه سنی...
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