کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4036407 | 1263599 | 2006 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polarization contrast of zooplankton: A model for polarization-based sighting distance
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
سیستم های حسی
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چکیده انگلیسی
Transparency is commonly used by zooplankton for camouflage in open waters. Polarization vision allows planktivorous animals to increase their prey’s detectability. Polarization properties of zooplankton were analyzed by measuring changes in the transmitted light. The transmitted light was subjected to depolarization and phase retardance, resulting in a species-specific polarization contrast between animal and background; from 5% in Corycaeus sp. to 92% in Undinula vulgaris (Copepoda). This contrast diminishes exponentially with distance, reaching 50% of the inherent value at 1 and 2 m, for moderately turbid and clear waters, respectively. However, at reactive distances of planktivorous fishes this contrast is reduced by less than 20%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vision Research - Volume 46, Issue 4, February 2006, Pages 444–456
Journal: Vision Research - Volume 46, Issue 4, February 2006, Pages 444–456
نویسندگان
Shai Sabbah, Nadav Shashar,