کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10137869 | 1645797 | 2018 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Giant eggs in the gastropod Aforia obesa (Conoidea: Cochlespiridae) in Southwestern Atlantic deep-waters
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Egg capsules and adults of Aforia obesa Pastorino and Sánchez, 2016 were collected at the Mar del Plata Submarine Canyon in the Argentine continental slope at 780-1398â¯m depth during 2012 and 2013. Egg capsules were iridescent white, dome-shaped, solitary with tough and thick walls. The capsule diameter was 8.5-12â¯mm. The uncleaved eggs with a diameter of 1.6-1.9â¯mm (Xâ¯=â¯1.8â¯Â±â¯0.1â¯mm) confirm a previous report for the genus and are by far the largest eggs known within Conoidea and, as far as we know, the largest ever described among Caenogastropoda from the Southwestern Atlantic. Embryos undergo complete intracapsular development with no evidence of oophagy, adelphophagy, late cannibalism, or other supplementary food. Young emerge as crawling juveniles throughout an elliptic and transparent exit hole in the top center of the egg capsule.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Zoologischer Anzeiger - Volume 276, September 2018, Pages 94-99
Journal: Zoologischer Anzeiger - Volume 276, September 2018, Pages 94-99
نویسندگان
Noelia Sánchez, Guido Pastorino, Pablo E. Penchaszadeh,