کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9448646 | 1305940 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Selection and viability after ingestion of vegetative cells, resting spores and resting cells of the marine diatom, Chaetoceros pseudocurvisetus, by two copepods
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Feeding response of two copepods Neocalanus flemingeri and Calanus sinicus on cultures of three life-forms; vegetative cells, resting spores and resting cells, of Chaetoceros pseudocurvisetus was investigated. N. flemingeri fed heavily on the vegetative cells but scarcely responded to feed on the resting spores. C. sinicus showed significantly higher filtering rate on the vegetative cells and resting cells than on the resting spores. Survival of the three life-forms of C. pseudocurvisetus after gut passage of the copepods was also studied. The resting spores could germinate from fecal pellets of both N. flemingeri and C. sinicus; however, both the vegetative cells and the resting cells could not survive ingestion by the copepods. These results suggest that resting spore forming diatoms, such as C. pseudocurvisetus form spores which have a low nutritional value and during gut passage are largely indigestible due to the heavily silicified frustules and thus minimize the effects of grazing by copepods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Experimental Marine Biology and Ecology - Volume 322, Issue 2, 14 September 2005, Pages 143-151
Journal: Journal of Experimental Marine Biology and Ecology - Volume 322, Issue 2, 14 September 2005, Pages 143-151
نویسندگان
Akira Kuwata, Atsushi Tsuda,