Biological investigations of noxious coelenterates and ctenophores
in coastal North Carolina.
Chl-a had no statistical correlation with zooplankton biomass, and was negatively correlated with chaetognaths, ctenophores
and doliolids (-0.
The phylogenetic position of ctenophores
and the origin(s) of nervous systems.
For example, ctenophores
don't use serotonin, dopamine and other common signaling chemicals, called neurotransmitters.
MOLECULAR CHARACTERIZATION OF AN INVASIVE NOVEL CYDIPPID CTENOPHORE
Laurence Madin, a transplanted fourth generation Californian, makes his home in Massachusetts studying gelatinous an reals such as medusae, siphonophores, ctenophores
, and pelagic tunicares.
These samples consisted primarily of marine fish larvae and amphipods, although a high biomass of jelly-plankton, ranging from small ctenophores
to jelly-fish more than 1 m in diameter, was also observed entering the lake.
gobies, Gobiosoma bosc, and blennies, Chasmades bosquianus and Hypsoblennius hentzi) feed on quahog veligers in Virginia (Harding, 1999), and Nelson (1925) observed decreases in abundance of bivalve larvae coincident with large numbers of tenticulate ctenophores
These figures generally underestimate the biomass of gelatinous zooplankton, formed by jellyfish, siphonophores, ctenophores
, pteropod mollusks, and thaliaceans or salps.
The contents of the cod end of the net were filtered through a sieve to remove scyphomedusae, ctenophores
, and other organisms [is greater than] 1 mm.
Using conventional differential interference contrast (DIC) microscopy, I describe structures, heretofore not reported, in the well-studied aboral sensory complex, or apical organ, of ctenophores
Small copepods are also prey items to larger zooplanktivores like chaetognaths, ctenophores
and medusae, in addition to being cannibalized by larger copepods as well (Turner, 2004).