play critical roles in substrate deposition and nutrient cycling in reef ecosystems (de Goeij et al.
showed similar concentrations of N, about 3.6% dw A significant difference was found in N content of the two species of cnidarians analyzed (P < 0.001), with the sea anemone B.
We have deposited a voucher specimen and photograph in the Poriferan
Collection in the Queensland Museum (QM G315611).
In this fashion, apoplastic nutrient transport by ameboid cells has become specialized in the genus Aplysina to the extent that these sponges have a differentiated structure that parallels fluid transport systems in other animals, but is a typically novel poriferan
During the Paleozoic era Poriferans
accounted for much of the benthic biomass (39).
THE VIBRANT CORAL ACCRETIONS, PORIFERANS
AND pulpy anemones of a tropical reef or the mossy, flower-spangled turf of an alpine meadow uprooted in sections from its tranquil bed and draped in vertical display like some ponderous plush tapestry: on first appearance, the wall-mounted component of Synthetic Reality--ceramic artist Susan Beiner's recent foray into the installation format--breathes, heaves and palpitates like living tissue resected from the writhing body of nature.
Aiming to resolve these controversies, a group of international scientists led by Herve Philippe (Universite de Montreal, Canada), Gert Worheide (LMU Munich, Germany) and Michael Manuel (University of Paris, France) performed the most comprehensive study to date and investigated 128 genes from a total of 55 species - including nine poriferans
, eight cnidarians, three ctenophores and the single known species of placozoans.
crabs, shrimps, lobsters), poriferans
(sponges) and populations of larger sea animals such as hawksbill and green turtles, dugongs, and saltwater crocodiles, to name a few.
1), both Cambrian communities were rich in genera of arthropods and poriferans
. Chordates and molluscs also are more diverse today, while poriferans
, priapulids, cnidarians and hyolithids are absent from the modern community.
Abstract: A suite of fossils collected from the Warsaw Formation (Mississippian) of Missouri includes brachiopods, bryozoans, cnidarians, poriferans
, echinoderms, and chondrichthyan teeth.
That ctenophores 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., 2013; Marlow and Arendt, 2014; Halanych, 2015; Jekely et al., 2015).