grasping spines recognized among Cambrian protoconodonts.
Didymozoid Monilicaecum type trematodes in chaetognaths
from Mexican Caribbean Sea.
flexed its body, snapped around 180[degrees] from its starting position, and darted several body lengths away from the cloud.
Yet in fish, only the depth of the trailing edge is related to propulsive force (Webb 1984) and increasing fin depth anterior to the trailing edge in chaetognathes
does not increase propulsion (Jordan 1992).
pacificus, and fewer insects, decapod larvae, gammarids, and "others." The "others" in this case were mostly bivalves, whereas the "others" for the co-occurring juvenile chum salmon were mostly chaetognaths
species composition from a coral reef lagoon in the Mexican Caribbean Sea.
These animals include some radiolarmans and foraminifera, as well as medusae, siphonophores, ctenophores, chaetognaths
, pteropods, heteropods, appendicularians, salps, doliolids, and pyrosomes (e.g., Hamner et al., 1975).
Parasagitta elegans, the only identified chaetognath
, occurred in more stomachs (47%) than any other prey taxon and in 58% of the stomachs from squid [greater than or equal to] 60 mm ML.
Feeding by the chaetognath
Sagitta elegans at low temperatures in Vineyard Sound.
Flaccisagitta enflata was the second most abundant chaetognath
. The species has been reported as oceanic (Alvarino 1965) but also found in neritic waters (Gasca et al.
Feeding of the chaetognath
Sagitta elegans Verrill.
spatial distribution and how egg-carrying affects the vertical distribution of Sagitta tasmanica off southern Chile.