|Benthos Overview Why should the benthos be monitored ?|
Apart from possessing minimum knowledge on benthos in order to manage short and medium term human activities along the coast, it is also advisable to have all the necessary means available in order to answer questions concerning the long-term evolution of the benthos, which is hardly perceptible in other time scales.
The questions are the following :
Is benthic biodiversity developing ?
What are the consequences of climate change on the biogeographical distribution of some species or groups of species (case of Kelp in Brittany) ?
What is the current importance of benthic species, and how do they evolve in space and time ?
How and how fast does the benthic sector recover after accidental pollutions such as oil spills ?
What effects can the development of some coastal environmental parameters have on benthic species?
The effect of turbidity on the vertical distribution of algae, at depth.
The effect of soil nutrient enrichment on populations of green algae and on the green alga-brown alga ratio.
The effect of organic matter enrichment in sediments on the evolution of biocenosis in soft substrates.
These questions will only be properly answered if the benthos and the main coastal environmental parameters are monitored over the long term and according to adapted spatial scales.