Electroretinograms and Spectral Sensitivity in the Ayu, a Salmonoid Fish
نویسندگان
چکیده
منابع مشابه
On the Food of the Salmonoid Fish , Ayu (Plecoglossus altivclis Temminck & Schlegel). II
The present paper, as we have mentioned in the previous report, embodies our more extensive studies concerning the food of the Ayu and also its food-habit as to whether it changes or not according to the ages¤ locality, or season. In the young stage, living in the sea or lake, Ayu feeds entirely on zooplankton (Copepoda, Ostracoda, Phyllopoda etc.); and also on the similar matters until it has ...
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Ayu fish form algae-feeding territories in a river during a non-breeding (growing) season. We build a cost-benefit theory to describe the breakdown and formation of territory. In the early stage of a growing season, all fish hold territories at low densities. Once all territory sites are occupied, excess fish become floaters. When fish density further increases, a phase transition occurs: all t...
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Onychophorans typically possess a pair of simple eyes, inherited from the last common ancestor of Panarthropoda (Onychophora+Tardigrada+Arthropoda). These visual organs are thought to be homologous to the arthropod median ocelli, whereas the compound eyes probably evolved in the arthropod lineage. To gain insights into the ancestral function and evolution of the visual system in panarthropods, ...
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The causes for the decrease in the catch of although two of the authors were unsuccessful Pacific salmon over the past few years have been (Bataillon and Terre, 1897; Terre, 1902). Duthe subject of much controversy. A disease bard (1897, 1898) adapted the acid-fast bacillus caused by an acid-fast organism and commonly of carp to guinea pigs by serial passage of macalled "fish tuberculosis," one...
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تمایل به ارزیابی جایگزین و تعویض آن با آزمون سنتی مداد و کاغذ در سالهای اخیر افزایش یافته است. اکثر زبان آموزان در کلاس های زبان از نمره نهایی که استاد تعیین میکند ناراضی اند. این تحقیق جهت بررسی ارزیابی در کلاس های زبان انگلیسی به هدف رضایتمندی زبان آموزان از نمره هایشان انجام گرفته است که در آن نمرات ارائه شده توسط سه گروه ارزیاب (ارزیابی خود دانشجو، همسالان واستاد) در مهارت های تولید (تکل...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1978
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.44.401