Meiobenthic Harpacticoida (Crustacea, Copepoda) from the Deep Sea off North Carolina IV. The Families Cletodidae T. Scott and Ancorabolidae Sars

1973 ◽  
Vol 92 (4) ◽  
pp. 604 ◽  
Author(s):  
Bruce C. Coull
Keyword(s):  
North Carolina ◽  
Deep Sea

The Diversity of Nematode Communities in the Southern North Sea

1974 ◽  
Vol 54 (1) ◽  
pp. 251-255 ◽  
Author(s):  
C. Heip ◽  
W. Decraemer
Keyword(s):  
North Carolina ◽  
North Sea ◽  
Deep Sea ◽  
Benthic Communities ◽  
Nematode Communities ◽  
Diversity Measure ◽  
Southern North Sea ◽  
The North ◽  
Harpacticoid Copepods ◽  
Logarithmic Series

Diversity is one of the most important parameters used in the description of a community; several theories relating diversity to other phenomena as predation, competition and stability have been proposed (Pianka, 1966). As a result of the increasing interest in diversity a number of studies have appeared during recent years, but the meiofauna has until recently been almost completely neglected, rather surprisingly when one considers the importance of this group of organisms in all marine benthic communities. Coull (1972) studied recently the diversity of harpacticoid copepods, with nematodes the major meiobenthic component, along the North Carolina shelf and in the deep sea. Warwick & Buchanan (1970) appear to be the only ones to have studied diversity in nematode communities, using α of the logarithmic series (Fisher, Corbett & Williams, 1943) as a diversity measure. The paucity of data seems primarily to be due to the taxonomic difficulties encountered in studying nematodes.

scholarly journals Trace fossils from the Late Proterozoic of North Carolina: early conquest of deep-sea bottoms

1992 ◽  
Vol 6 ◽  
pp. 265-265 ◽  
Author(s):  
Adolf Seilacher ◽  
Friedrich Pflüger
Keyword(s):  
North Carolina ◽  
Deep Sea ◽  
Tool Marks ◽  
Late Proterozoic ◽  
The North ◽  
Bedding Planes ◽  
Tool Mark ◽  
Carolina Slate Belt ◽  
Body Fossil ◽  
Complex Organic

The trace fossil Oldhamia reflects systematic strip mining of an infaunal, worm-like sediment feeder. It is known from many parts of the world in Cambrian complexes, whose flysch-like and accreted character suggests deposition on a deep continental slope. In similar rocks of the North Carolina Slate Belt. Oldhamia is associated with rare specimens of the Ediacara-type body fossil Pteridinium, as well as tool marks of a problematic stiff organism reminiscent of graptolite stipes (Vendospica).This occurrence (1) extends the stratigraphic range of Oldhamia into the Late Proterozoic. It also reminds us that, by that time, worm-like, endobenthic bilaterians (2) had become behaviorally specialized and (3) had colonized shelf and deep-sea bottoms well before the Cambrian evolutionary explosion. (4) Since bioturbators were small and did burrow strictly along bedding planes, their mixing effect was as yet negligible. (5) The new tool-mark fossils tell us that complex, organic-walled and perhaps colonial organisms were around in addition to sand-corals (Psammocorallia), possibly sponges and the probably plasmodial Vendobionta.

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