Carraroenia ruthae gen. et sp. nov. (Copepoda, Harpacticoida, Laophontidae) from maerl substrates of the Irish west coast

Zootaxa ◽  
2006 ◽  
Vol 1202 (1) ◽  
pp. 39 ◽  
Author(s):  
EDWARD McCORMACK
Keyword(s):  

Carraroenia ruthae gen. et sp. nov. is described from maerl beds at An Dóilín, Carraroe, County Galway, Ireland. This genus is considered to be closely related to the genus group comprising Psammplatypus, Coullia, Phycolaophonte, Hemilaophonte and Robustunguis, which had been linked based on the reduced P2 endopod and the primitive setation of the male P5 baseoendopod. Carraroenia is regarded as the most primitive genus of this lineage, as evidenced by the 3segmented male P3 endopod, the lack of reduction in the P3–P4 endopods, the retention of the inner seta on P2–P4 exp-2 and the presence of 2 inner setae in P4 enp-2.

1959 ◽  
Vol 14 (9) ◽  
pp. 596-597
Author(s):  
Francis H. Palmer
Keyword(s):  

2016 ◽  
Vol 546 ◽  
pp. 31-45 ◽  
Author(s):  
E Infantes ◽  
L Eriander ◽  
PO Moksnes
Keyword(s):  

Author(s):  
S.M. Thomas ◽  
M.H.Beare C.D. Ford ◽  
V. Rietveld

Humping/hollowing and flipping are land development practices widely used on the West Coast to overcome waterlogging constraints to pasture production. However, there is very limited information about how the resulting "new" soils function and how their properties change over time following these extreme modifications. We hypothesised that soil quality will improve in response to organic matter inputs from plants and excreta, which will in turn increase nutrient availability. We tested this hypothesis by quantifying the soil organic matter and nutrient content of soils at different stages of development after modification. We observed improvements in soil quality with increasing time following soil modification under both land development practices. Total soil C and N values were very low following flipping, but over 8 years these values had increased nearly five-fold. Other indicators of organic matter quality such as hot water extractable C (HWC) and anaerobically mineralisable N (AMN) showed similar increases. With large capital applications of superphosphate fertiliser to flipped soils in the first year and regular applications of maintenance fertiliser, Olsen P levels also increased from values


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