Pelagic cnidarians and ctenophores
as predators: selective predation, feeding rates, and effects on prey populations.
The remaining 5% of the zooplankton community was composed of cladocerans, ostracods, doliolids, polychaete larvae, medusae, fish eggs, ctenophores
, salps, cephalopod paralarvae, bivalves, isopods, appendicularians, pyrosomes, mysiids, heteropods and echinoderms larvae, stomatopods and cirripeds.
appear to have diverged earlier than placozoans and, possibly, also poriferans, came as a surprise because ctenophores
appear to be much more complex (Ryan et al.
Until now, biologists have thought of comb jellies, or ctenophores
, as soft bodied, so the fossils reveal an "unexpected lost history," Ou says.
1) and ctenophores
at the NW portion of the island (13[degrees]22'47.
These fossils have also been assigned by some workers to a group of modern cnidarians (the "sea pens") or to ctenophores
They also decoded gene activity of nine additional species of ctenophores
-- the scientific name for comb jellies.
collected by gentle plankton net tows were transported to the laboratory within 12 hours.
The results also show that critical cell types, like neurons and muscle cells, were either lost multiple times during evolution or evolved independently in the ctenophores
Sizedependent predation on marine fish larvae by ctenophores
, scyphomedusae, and planktivorous fish.
The mesopelagic fauna also includes many kinds of squid, krill, and siphonophores and ctenophores
(jellyfish-like animals), as well as worms, sea butterflies, and larvae that comprise the DSL zooplankton.
My mystery organisms range from ctenophores
to the obscure solar powered sea slugs which steal chloroplasts from their algal food source.