Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Reijiro Hirano"'
Autor:
Ichiro Takeuchi, Reijiro Hirano
Publikováno v:
Journal of Crustacean Biology. 15:481-492
The mode of attachment was observed for 9 species in 4 genera of the Caprellidea (Amphipoda) which inhabit the Sargassum zone. Clinging behavior was classified as "moving," "upright," "bending," and "parallel." The dominant behavior of Perotripus sp.
Autor:
Reijiro Hirano, Ryusuke Kado
Publikováno v:
Journal of Experimental Marine Biology and Ecology. 175:17-41
Two species of megabalanid barnacles occur in Japan. The larval stages of Megabalanus volcano (Pilsbry) and M. rosa (Pilsbry) are described from larvae reared in the laboratory. The number of segments of the antennal exopod and the number of teeth on
Publikováno v:
NIPPON SUISAN GAKKAISHI. 59:777-782
The fertilizing capacity, motility, and associated morphological changes of rainbow trout Oncorhynchus mykiss, common carp Cyprinus carpio and marine puffer Fugu niphobles spermatozoa were studied after freeze-thaw. Freeze-thaw spermatozoa underwent
Autor:
Ichiro Takeuchi, Reijiro Hirano
Publikováno v:
Journal of Experimental Marine Biology and Ecology. 164:161-169
Embryonic duration in two species of epifaunal caprellid amphipods, Caprella danilevskii Czerniavski and Caprella okadai Arimoto, was investigated. The duration decreased from 13 days at 10°C to 3.5 days at 24°C in C. danilevskii and 8.2 days at 12
Autor:
Reijiro Hirano, Tomohiko Kawamura
Publikováno v:
Diatom Research. 7:227-239
The seasonal changes in communities of benthic diatoms colonizing glass slides were observed in Aburatsubo Bay, Kanagawa Prefecture, Japan. Once every month during the study periods June 1984 to July 1985 and February to October 1987, glass slides we
Autor:
Reijiro Hirano, Ichiro Takeuchi
Publikováno v:
Journal of Experimental Marine Biology and Ecology. 161:201-212
Growth, maturation and reproduction of Caprella okadai Arimoto, an amphipod crustacean endemic to the Japanese coast, were studied under laboratory conditions at 20°C, and 14 h light: 10 h dark photoperiod. The diatom Cylindrotheca closterium (Ehren
Publikováno v:
Journal of the Oceanographical Society of Japan. 47:126-137
Aoshio-hypoxic water which can be distinguished from surrounding coastal water by its milky blue-green color-is often observed at the head of Tokyo Bay when coastal upwelling of sulfidic bottom water occurs during summer and early autumn. Optical pro
Publikováno v:
NIPPON SUISAN GAKKAISHI. 56:749-754
Crossbreeding between Pseudocentrotus depressus egg and cryopreserved Anthocidaris cras-sispina sperm were performed, in order to obtain several information concerning the influence of maturation of egg and sperm donors on the morphological appearanc
Publikováno v:
Zoological science. 19(2)
We developed a method for preparing male chromosomes from sea urchin hybrid andromerogones created with cryopreserved sperm. We obtained hybrid andromerogones by heterospermic insemination of Hemicentrotus pulcherrimus non-nucleate egg fragments prod
Publikováno v:
Japanese Journal of Ichthyology. 39
Larval development of laboratory reared Japanese whiting,Sillago japonica, was described according to morphological and histological observations of the development of organ systems. The development of larvae from hatching to the early phase of the j