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A possible Lower Cambrian chaetognath (arrow worm).
(Trematoda: Didymozoidae) in the chaetognath Serratosagitta serratodentata (Krohn 1853) from Caribbean waters.
Habitat depths of the two chaetognath species under investigation were expressed as minimum depth of occurrence, the depth below which 90% of the population can usually be found (Childress, 1975).
A model of rapid-start swimming at intermediate reynolds number: undulatory locomotion in the chaetognath Sagitta elegans.
Responses of the chaetognath, Sagitta elegans, and larval Pacific hake, Merluccius productus, to spring diatom and copepod blooms in a temperate fjord (Dabob Bay, Washington, USA).
Multigene analysis of lophophorate and chaetognath phylogenetic relationships.
Reports of the dominant chaetognath species in the area Ferosagitta hispida and Flaccisagitta enflata (Grassi) (Ramirez-Avila and Alvarez-Cadena 1999) and fish larvae (Ordonez-Lopez, pers.
of Area (n) fish Chiniak Bay 5 75 Ugak Bay [less than or 3 31 equal to] 66 mm >66 mm 4 60 Kiliuda Bay [less than or 1 5 equal to] 66 mm >66 mm 6 61 Shelf 6 65 Prey (number of individuals/fish) (1) crab Area amphipod chaetognath copepod larvae Chiniak Bay 2.8 t 4.1 0.1 Ugak Bay [less than or 0.1 0.6 11.2 0.6 equal to] 66 mm >66 mm 0.1 t 5.9 15.9 Kiliuda Bay [less than or 0.0 0.2 2.2 1.0 equal to] 66 mm >66 mm t t t 6.4 Shelf 0.3 0.0 0.1 0.1 Prey (number of individuals/fish) (1) shrimp Area cumacean euphausiid mysid larvae Chiniak Bay 0.0 3.7 0.4 t Ugak Bay [less than or 0.0 0.1 t 0.0 equal to] 66 mm >66 mm t 3.3 0.2 t Kiliuda Bay [less than or 0.0 0.2 0.0 0.0 equal to] 66 mm >66 mm t 2.7 t t Shelf t 2.8 0.4 0.1 No.
Complete cycle of development of a pelagic chaetognath in culture.
The numbers of individuals of each prey taxon were estimated from the numbers of prey parts, such as copepod mandibles, amphipod heads and chaetognath seizing hooks.
Daily ration and specific daily ration of the chaetognath Sagitta enflata.
This chaetognath has been reported to migrate to near bottom and it has been associated to submerged vegetation (Thalassia testudinum) during the day.