The presence of allochthonous detritus sediments enhanced the abundance of detritivores like Oligochaetes (Manoharan et al, 2006) which confirms the peak of annelid
population during September at St I and II due to the ingression of allochthonous material into the wetland from catchment area during monsoon rains.
The Macrobenthic invertebrates in this study are categorized as follows: Annelids
consist of about 15,000 species (Campbell 1996) including segmented worms, polychaetes, as well as earth worms and leeches (Hickman 2006); Echinoderms, meaning spiny skin in Greek, consist of about 7,000 different species (Nichols 1969); Crustaceans consist of about 52,000 species (Hickman 2006) including shrimp, lobsters, crayfish, and crabs (Day et al.
Phoretic behaviour of bromeliad annelids
(Dero) and ostracods (Elpidium) using frogs and lizards as dispersal vectors.
The palaeobiogeography of Silurian ramphoprionid polychaete annelids
13]C values of annelid
worms caught in UK estuaries (Nithart 2000).
High pumpkinseed Wr was related to high annelid
abundance, but not gastropod or chironomid abundance.
Palynodebris Characteristics Amorphous organic matter Unstructured, irregularly-shaped, light brown to medium brown masses; usually gel- like (Figure 2A) Marine palynomorphs Scolecodonts (chitinous mouth parts of marine annelid
worms) and acritarchs (cysts of marine algal phytoplankton, Figure 2G) Black debris Opaque particles with sharp angular outlines; lath-shaped, sometimes more equidimensional (Figure 2E) Yellow-brown debris Structureless particles of yellow to light brown color; attributable to highly degraded herbaceous material (Figure 2A) Black-brown debris Unstructured dark brown to nearly black particles; attributable to highly degraded woody material Cuticles Platy epidermal fragments of leaves, roots, etc.
Fish, lobsters, crabs, annelid
worms, and snails were all killed and washed up on beaches.
Classical and recent work shows that in animals such as the annelid
Platynereis dumerilii, dim nocturnal light serves as entrainment cue for an endogenous oscillator a circalunar clock that orchestrates reproductive and behavioral cycles.
a new tubicolar Annelid
from the Silurian of Bohemia.
The vitamin E analog Trolox reduces copper toxicity in the annelid
Lumbriculus variagatus but is also toxic on its own.
Many are complete fossils, and include sponges, annelid
worms, mollusks and horseshoe crabs - in particular, a species similar to today's horseshoe crab, which appeared some 30 million years earlier than previously known.