نتایج جستجو برای: phrynocephalus maculatus
تعداد نتایج: 1497 فیلتر نتایج به سال:
Over 90% of the insect damage to cowpea seeds is caused by Callosobruchus maculatus. Although, many chemicals have proven their efficacy against C. maculatus, they adversely affect natural environment. Death non-targeted species which are enemies other pests and development resistance possible. Therefore, current study was conducted determine effect plant leaves Murraya koenigii (“Karapincha”),...
Mate choice is context dependent, but the importance of current context to interspecific mating and hybridization is largely unexplored. An important influence on mate choice is predation risk. We investigated how variation in an indirect cue of predation risk, distance to shelter, influences mate choice in the swordtail Xiphophorus birchmanni, a species which sometimes hybridizes with X. malin...
The fish Dormitator maculatus has a chromosomes number of 2n = 46, females having a karyotype of 14 M, 28 SM, 2 ST and 2A and males 13 M, 28 SM, 3 ST and 2A. The presence of a heteromorphic pair in the males and a corresponding homomorphic pair in the females suggest the occurrence of an XX/XY sex chromosome system in D. maculatus. The putative X chromosome has a pericentromeric C-band positive...
A series of 14 day experiments was conducted on five common New Zealand fish species (redfin bully Gobiomorphus huttoni, inanga Galaxias maculatus, brown trout Salmo trutta, longfin eel Anguilla dieffenbachii and koaro Galaxias brevipinnis) to assess the effect of pH on survival and changes in body mass. No species survived in water of pH <4 although there was 100% survival of all adults at pH ...
Fish is a high-quality animal-source food in the nourishment of millions worldwide. The most edible part fish muscle and which provides proper balance proximate non-proximate nutrition has relatively low caloric value than other meats. present study aimed to fill gaps nutritional profile three brackish water fishes (Arius maculatus, Mugil cephalus and Oreochromis niloticus...
The cowpea weevil (Callosobruchus maculatus) is the main pest that attacks (Vigna unguiculata) seeds during storage, causing nutritional and economic losses in crop. Thus, studies aiming to identify resistant cultivars have been developed. Chitin-binding proteins (CBP), such vicilins chitinases, detected related with toxicity insects. In this work, we investigated presence of chitin-binding par...
ABSTRACT Cowpea (Vigna unguiculata) is an economically and nutritionally important crop. However, cowpeas are subject to attack by insect pests that reduce the quality nutritional value of grains during storage. The use plant-based products as alternative control has been highlighted for their low toxicity on environment human health. This study aimed evaluate bioactivity different plant extrac...
The aim of this study was to investigate the post-cyclic transmission of Acanthocephalus tumescens (von Linstow, 1896) from Galaxias maculatus Jenyns to Oncorhynchus mykiss (Walbaum). Wild G. maculatus naturally infected with A. tumescens were fed to cultured rainbow trout, which were sacrificed at the second, third and fourth weeks post infection. Normally attached male and female acanthocepha...
چکیده هدف این تحقیق، بررسی سیستماتیک گونههای خانواده آگامیده در استان آذربایجان شرقی است. برای این منظور چندین مکان تلهگذاری بهطور تصادفی در وضعیتهای متنوع زیستگاهی در سطح منطقه انتخاب شد. تعداد 100 نمونه از خانواده آگامیده که شامل پنج گونه Trapelus agilis، Trapelus persicus، Phrynocephalus scutellatus، Phrynocephalus persicus و Laudakia nupta از سه جنس مختلف در زیستگاههای مختلف منطقه جمعآ...
ارزیابی رابطه طول و وزن، شاخص وضعیت گربه ماهی خال دار ( arius maculatus thunberg, ۱۷۹۲) در خلیج فارس
هدف از این مطالعه، بررسی رابطه طول و وزن، شاخص وضعیت گربه ماهی خال دار در خلیج فارس بود. نمونه برداری ماهانه توسط تور ترال و مشتا از فروردین تا اسفند 1392صورت گرفت. میانگین طول کل و وزن به ترتیب 35/0±79/29 سانتیمتر و 66/11±65/306 گرم بود. رابطه طول کل- وزن به صورت w=0/03l2/72 با ضریب همبستگی 95/0 محاسبه شد. با توجه به عدم تفاوت معنی داری مقدار b محاسبه شده با عدد 3 در سطح 95 درصد، نوع رشد ناهمگ...
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