نتایج جستجو برای: anemone
تعداد نتایج: 1670 فیلتر نتایج به سال:
In the recent years, there is evidence of training a red type of zebrafish which differs from wild-type in body color. There is not any document how it reaches to the ornamental fish farms of Iran but at first, it was a doubt it belongs to a morphotype or genetic modification (GM). First of all, a set primer was designed to validate zebrafish species. Mitochondrial 16srDNA was selected and ampl...
Jellyfish, hydras, corals and sea anemones (phylum Cnidaria) are known for their venomous stinging cells, nematocytes, used for prey and defence. Here we show, however, that the potent Type I neurotoxin of the sea anemone Nematostella vectensis, Nv1, is confined to ectodermal gland cells rather than nematocytes. We demonstrate massive Nv1 secretion upon encounter with a crustacean prey. Concomi...
During the BIOACCESS Japanese cruises (1996 & 1998), active hydrothermalism and associated vent fauna were studied on the South-eastern Rift of Manus Basin (South-western Pacific). In the PACMANUS vent field, a conspicuous vent fauna was sampled, including an actinostolid sea anemone (Actiniaria) belonging to an undescribed genus and species. Pacmanactis hashimotoi gen. et spec. nov. is here de...
پوشش گیاهی مناطق زنوزق و کوه کمر از توابع شهرستان مرند واقع در استان آذربایجان شرقی (شمال غرب ایران) در طی سالهای 1387 تا 1389 جمع آوری و به دقت مطالعه شد. از میان نمونه های گیاهی جمع آوری شده hedysarum marandense mozaffarian, akrami & maassoumi(fabaceae) به عنوان گونه جدید و anemone narcissiflora l. subsp. willdenowii (boiss.) davis (ranunculaceae) به عنوان گزارش جدید شناسایی شدند که برای ...
Abstract Animals are faced with a fundamental risk-reward trade-off when making decisions about foraging in the presence of predation, yet little is known how social, reproductive and environmental factors mediate this trade-off. In marine environment, anemonefishes provide model system for investigating determinants risk–reward trade-offs, because they live size- sex-structured groups within p...
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