At Chinchorro Bay, Caribbean of Mexico, is the second most abundant species of appendicularians
after Oikopleura (Coecaria) longicauda (Vogth, 1864) (Castellanos-Osorio 2003).
1 Urochordata [Ascidians (Tunicates or Sea Squirts), Larvaceans (Appendicularians
), Thaliaceans (Salps, Doliolids, and Chain Tunicates)]
Evidence from 18S rDNA shows that the stolidobranch tunicates may also be closely related to the appendicularians
, which include the pelagic oikopleurid tunicates that build mucous houses (2-4).
Other less abundant groups (<1%) such as siphonophores, medusae, cladocerans, heteropods, appendicularians
and echinoderm larvae showed a negative correlation (-0.64 < r < -0.28; P < 0.05).
Retention efficiency of 0.2 to 6 [micro]m particles by the appendicularians
Oikopleura dioica and Fritillaria borealis.
Two new appendicularians
from the Eastern Pacific, with notes on the morphology of Fritillaria aequatorialis and Tectillaria fertilis.
Among holoplankton, chaetognaths and appendicularians
(Oikopleura spp.) were very frequent.
maintain their tail throughout life, and as solitary, freely swimming filter-feeders, both their lifestyle and their adult chordate body plan differ from those of other tunicate groups (Fenaux, 1998; Fenaux et al., 1998).
Additionally, an important percentage of juvenile appendicularians
was collected (4.3%).
Taxon Host Harpacticoida Microsetella Brady and appendicularians
(Urochordata) of Costa Rica and adjacent zones.
During the sampling period the mesozoo-plankton community was characterized by the presence of different groups, such as copepods, chaetognaths, crustacean larvae, ostracods, cladocerans, icthyoplankton (fish larvae), molluscs, appendicularians
, echinoderms and brachiopods larvae (Table 1).