ascidian


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ascidian

any PROTOCHORDATE of the class Ascidiacea (subphyllum Tunicata), such as the sea squirt, the adults of which are degenerate and sedentary. See also APPENDICULARIA.
References in periodicals archive ?
ceratodes in the northern Chilean coast to spite to collect intertidal ascidians between Iquique and Antofagasta (Stations 129, 131, 133 and 159 sampled during Lund University Chile Expedition 1948-1949).
The solitary ascidian test may vary morphologically within as well as between species, and it is frequently necessary to dissect to identify definitively (Kott 1997), even when specimens have been observed in situ, in characteristic habitat.
Regulation of synaptotagmin gene expression during ascidian embryogenesis.
The zoanthid, sponges and ascidian samples (5.0 g) were fragmented and macerated with the steril porcelain pestle and mortar with the addition of 2 mL of filtered seawater.
Increasing accumulation of biofouling organisms such as ascidians within aquaculture sites is a growing problem (Adams et al.
However, it may be hard to determine whether the "true" default fate of the ascidian ectoderm is different from that of the Xenopus embryo.
Dmitrenok et al., "Varacin and three new marine antimicrobial polysulfides from the far-Eastern ascidian Polycitor sp," Journal of Natural Products, vol.
Didemnaketals A and B were isolated from the ascidian Didemnum sp.
Even longer sperm longevities of more than 24 h were reported in the ascidians Ascidia mentula [30].
Most ascidian species require a hard substrate for attachment.