Search Result of "Rapeeporn Ruangchuay"

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Reproductive Strategy and Occurence of Gametophytes of Thai Laver Porphyra vietnamensis Tanaka et Pham-Hoang Ho (Bangiales, Rhodophyta) from Songkhla Province)

ผู้เขียน:ImgRapeeporn Ruangchuay, ImgMasahiro Notoya



Reproductive strategy and occurrence of gametophyte phase of Thai laver Porphyra vietnamensis Tanaka et Pham-Hoang Ho were investigated to provide further information for aquaculture. The study was weekly evaluated in two localities of rocky dike; Leam Son-on and Ban Pak Bang Sakhom in Songkhla province during October 1999 to March 2000. Gametophytes, 1.48 (? 0.18) cm in length and 0.42 (? 0.05) cm in width, were visually appeared in early December on the upper level of the dike of both stations. The mature thalli were linear, broad linear or lanceolate, 4.49 (? 0.58) cm in length and 0.75 (? 0.18) cm in width. Speramatangia and zygotosporangia were generally observed from the same plant in early January with size of 10.78 (? 1.68) cm in length and 1.40 (? 0.11) cm in width. Most of them were linear, broad linear or lanceolate in shape. Spermatangial division was 64 (a/4, b/4, c/4) and 32 (a/2, b/4, c/4). While, zygotosporangia division was 8(a/2, b/2, c/2). Biomass was increased to 5.79 and 5.77 g wet weight /100 cm2 at Leam Son-on and Ban Pak Bang Sakhom respectively. Archeosporangia were observed in small thalli, 1-3.8 cm in length and 1.1-1.5 cm in width, in late March. The occurrence of gametophytic phase of P. vietnamensis from the two sampling stations was similar. The new populations could be observed at both stations during the sampling time.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 041, Issue 1, Jan 00 - Mar 07, Page 143 - 152 |  PDF |  Page 



ดร. อนงค์ จีรภัทร์, ศาสตราจารย์

ที่ทำงาน:ภาควิชาชีววิทยาประมง คณะประมง

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