Larvacea

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Larvacea

[lär′vā·shē·ə]
(invertebrate zoology)
A class of the subphylum Tunicata consisting of minute planktonic animals in which the tail, with dorsal nerve cord and notochord, persists throughout life.
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Such differences resulted from the disparity between copepod and appendicularian abundances.
Following the same trend, appendicularian and mollusk larvae (meroplankton) abundance was also too low in the past study relative to our current measures.
Appendicularians 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.
Here we use fluorescence confocal microscopy and BrdU labeling to provide the first quantitative analysis of appendicularian notochord development and growth, including cell numbers and morphologies at different developmental stages.
In the appendicularian Oikopleura longicauda, the initial rod-like notochord contains 19 cells in a stack-of-coins arrangement, plus one posterior knob-like cell (Nishino et al.
Ultrastructure of the pharyngeal filter of the appendicularian Oikopleura vanhoeffeni: implications for particle-size selection and fluid-mechanics.
Individual growth model for the appendicularian Oikopleura dioica.
The prey spectrum found is in accordance with the taxonomic groups mentioned by other authors in the CRH where the copepods were the main prey of anchovy followed by appendicularians and cladocerans (Capitanio et al.
Intensive predation on patches of unidentified fish eggs and appendicularians was observed in two specific hauls in northern and southern sectors of the study area respectively.
New apparatuses for cultivation of appendicularians.
The cultivation of an appendicularian through numerous generations.
Discarded appendicularian houses as sources of food, surface habits, and particulate matter in planktonic environments.