chaetognath

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chaetognath

any small wormlike marine invertebrate of the phylum Chaetognatha, such as the arrowworms, which are INDICATOR SPECIES of water type.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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Other occurring taxa included Cnidaria, Cladocera, Ostracoda, Amphipoda, Mysidacea, Pteropoda, Larvacea, and Chaetognatha were represented by a small number of species (Table IV), contributed collectively 19.68% and about 1% of the species richness and total abundance, respectively.
Volume III: Introduction, Cephalopoda, Annelida, Crustacea, Chaetognatha, Echinodermata, Urochordata.
The invertebrates comprised three classes of animals viz: Crustacea, nematoda, chaetognatha. Crustaceans represented by copepod (Calanus finmarchicus), swimming crab (Callinectes sp.) and pink shrimp (Penaeus notialis) constituted 34.72, 9.64 and 7.12% by number and occurred in 57.29, 35.42 and 29.17% of the stomachs, respectively.
Triploblastic relationships with emphasis on the acoelomates and the position of gnathostomulida, cycliophora, plathelminthes, and chaetognatha: a combined approach of 18s rDNA sequences and morphology.
Twenty-one species from the phyla Annelida, Mollusca, Arthropoda, Platyhelminthes, and Chaetognatha were identified from the experiments (Table 1).
Copepods dominated the community in all situations (> 70 in relative abundance), although Salpidae and Chaetognatha were also abundant and persistent.
For the protozooplankton, the predominant taxa in the southeastern region (SBB) were tintinnids (Salpingella sp.), which contributed to the high densities in SSB1, and zooplankton such as copepods there is high densities, as well as the presence of representatives of other groups such as Cladocera, Chaetognatha and Tunicata.
Among the holoplankton; copepoda, appendicularia, chaetognatha, doliolida, medusae, pteropoda, salpidae and siphonophora were encountered in every season, amphipoda was encountered in spring and winter, cumacea was encountered in winter, foraminifera was encountered in summer, autumn and winter, heteropoda and ostracoda was encountered in spring, autumn and winter, and radiolaria was encountered in spring and winter.
The Invertebrates: Smaller Coelomate Groups: Chaetognatha, Hemichordata, Pogonophora, Phoronida, Ectoprocta, Brachipoda, Sipunculida, the Coelomate Bilateria.