26; n = 12) of the ampullar contraction-dilatation cycle concomitant with hemolymph flow in ascidians
(Mukai et al.
Ultrastructure of vegetative and sporulation tages of Haplosporidium ascidiarum from the Ascidian
Ciona intestinalis L.
In this review, we will discuss the gene regulatory network in an ascidian
, Ciona intestinalis.
The amount of carbohydrate recorded in the ascidian
Chemical analysis of polysaccharides from ascidians
reveals sulfate ester, high galactone content and small amounts of glucose and hexosamine in proportions that vary among the different species.
containing phycourobilin and symbiotic with ascidians
Thus, prior to the establishment of man-made substrates (marina floats, pilings, harbor buoys and boat hulls), few shallow-water ascidians
were recorded from the Texas Gulf coast (Van Name 1945; Whitten et al.
greater than] 6 m) assemblages, composed of sponges, bryozoans, brachiopods, cnidarians, and ascidians
(Grange et al.
Third, in sessile organisms, such as ascidians
and plants, there can be no behavioral choice of male gametes; therefore, sperm choice and the postfertilization process of differential abortion may be especially important (Wirtz 1997) and may explain the more obvious nature of these forms of female choice in these taxa (Table 1).
To determine whether the palatability of lecithotrophic larvae from diverse sessile invertebrates varies, and how larval palatability may relate to other life history traits, we examined larval palatability to co-occurring fishes using larvae from sponges (12 species), gorgonians (nine species), corals (three species), hydroids (two species), ascidians
(three species), and a bryozoan (one species).
teleta, along with those of some molluscs, ascidians
, and echinoderms, are inhibited from metamorphosing by endogenously produced nitric oxide (Bishop and Brandhorst, 2001; Pechenik et al.
The stations where interrupted fishing effort was identified presented a higher biomass of sessile, like sponges or ascidians
, and fragile organisms, like little ophiuroids, than the sites continuously disturbed up to 2007.
The colonial ascidians
(Chordata, Tunicata) are marine invertebrates widely distributed in benthic systems.
Modiolarca lateralis (Pteryomorphia: Mytilidae): bivalve associated to six species of ascidians
from Bocas del Toro, Panama
1999) Transmembrane signal transduction for the regulation of sperm motility in fishes and ascidians