Biomass, production and respiration of marine Oligochaeta (Annelida) from the Island of Sylt (North Sea)

Hydrobiologia ◽  
1987 ◽  
Vol 155 (1) ◽  
pp. 189-189
Keyword(s):  
Biomass Production ◽  
North Sea ◽  
Marine Oligochaeta

Cumulative impacts of seabed trawl disturbance on benthic biomass, production, and species richness in different habitats

2006 ◽  
Vol 63 (4) ◽  
pp. 721-736 ◽  
Author(s):  
J G Hiddink ◽  
S Jennings ◽  
M J Kaiser ◽  
A M Queirós ◽  
D E Duplisea ◽  
...  
Keyword(s):  
Species Richness ◽  
Biomass Production ◽  
North Sea ◽  
Benthic Fauna ◽  
Natural Disturbance ◽  
Bottom Trawl ◽  
The North ◽  
Benthic Biomass ◽  
The North Sea ◽  
The Impact

Bottom trawling causes widespread disturbance of sediments in shelf seas and can have a negative impact on benthic fauna. We conducted a large-scale assessment of bottom trawl fishing of benthic fauna in different habitats, using a theoretical, size-based model that included habitat features. Species richness was estimated based on a generalized body mass versus species richness relationship. The model was validated by sampling 33 stations subject to a range of trawling intensities in four shallow, soft sediment areas in the North Sea. Both the model and the field data demonstrated that trawling reduced biomass, production, and species richness. The impacts of trawling were greatest in areas with low levels of natural disturbance, while the impact of trawling was small in areas with high rates of natural disturbance. For the North Sea, the model showed that the bottom trawl fleet reduced benthic biomass and production by 56% and 21%, respectively, compared with an unfished situation. Because of the many simplifications and assumptions required to synthesize these data, additional work is required to refine the model and evaluate applicability in other geographic areas. Our model enables managers to understand the consequences of altering the distribution of fishing activities on benthic production and hence on food web processes.

Optimization of biomass production with enhanced bioactive compound content by the medicinal mushroom Ganoderma australe under submerged culture

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
LM Papaspyridi ◽  
E Topakas ◽  
N Aligiannis ◽  
P Christakopoulos ◽  
AL Skaltsounis ◽  
...  
Keyword(s):  
Biomass Production ◽  
Submerged Culture ◽  
Bioactive Compound ◽  
Medicinal Mushroom ◽  
Ganoderma Australe
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