chaetognath

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Related to chaetognaths: phylum Chaetognatha, arrow worms, Ctenophores

chaetognath

any small wormlike marine invertebrate of the phylum Chaetognatha, such as the arrowworms, which are INDICATOR SPECIES of water type.
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Copepods, chaetognaths, euphausiids and amphipods were the most abundant groups during the study period, accounting for 87% of the total abundance (Fig.
2A1, D, F) suggest that they grew similarly to the grasping spines of chaetognaths, by basal accretion of thin laminae (Szaniawski 2002).
Trematoda: Didymozoidae) in the chaetognath Serratosagitta serratodentata (Krohn 1853) from Caribbean waters.
The ROV pilots were able to maneuver the 3300-kg vehicle and capture individual chaetognaths, even though the target specimens often tried to flee when sensing the motion of the approaching ROV.
Thus, for example, the chaetognaths of the genus Sagitta need only swim from time to time to maintain themselves at the desired depth, while mollusks of the genus Cavolinia have a heavy shell and must swim vigorously with their wing-shaped appendages to prevent themselves sinking.
Included in the new assemblage of more than 1,000 specimens are the first representatives of modern chaetognaths (arrowworms) and ctenophores (jellyfish).
Book 1: algae and macrophytes, protists, sponges, coelenterates, molluscs, crustaceans, insects, chaetognaths, annelids, echinoderms, and tunicates
The 10 prey categories were chaetognaths, euphausiids, amphipods, copepods, crab, miscellaneous, and pollock (<60 mm standard length [SL], 60-200 mm SL, [greater than or equal to]200 mm SL, and unmeasured).
1998), produced information on the copepod fauna, Ramirez-Avila and Alvarez-Cadena (1999) on the monthly variation of chaetognaths, and Ramirez-Avila (2001) and Alvarez-Cadena et al.
The communities of the intermediate area below the Antarctic convergence are dominated by copepods (more than 60%), although there are also abundant salps, members of the krill family, chaetognaths and amphipods.
Distribution of siphonophores, chaetognaths, euphausiids and oceanogra-phic conditions in the fjords and channels of southern Chile.