Kartenn is currently developing the following projects:
Spatial analysis of the implementation suitability of marine fish farms in the Galician coast for the Marine Culture spatial planning, POCUMA.
The aim of this project is to define the areas suitable for future allocation of marine aquaculture farms in the Galician coast, on the basis of biological needs (temperature, productivity, …) of cultivated species, sector constraints (distance to the coast, safety, …) and ecological value of each zone.
In order to obtain a final mapping a GIS analysis including all variables involved in the aquaculture processes will be carried out. All the steps listed in the methodology will be included in a small application that will allow future updates and replication of the analysis in other areas.
Elena Couñago, GIS technician, helps us develop this project.
Habitat suitability analysis of the main commercial species in the Galician figures of marine protection (MAIA).
The aim of this project was to assess the delimitation of the current protection figures in Galicia (RMIP Os Miñarzos, RMIP Ría de Cedeira and Parque Nacional Illas Cíes), in regard of the potential habitats of species under protection, those more valuable to artisanal fisheries in the RMIP. This assessment was performed using “Ecological-Niche Factor Analysis“ (ENFA) methods and was a part of the European project on Marine protected areas in the Atlantic arc (MAIA).
Using lessons (methodology, results) learned from the project “Geographic boundaries on Os Miñarzos (Lira) MPA based on Habitat Suitability for the allocation of potential habitats of main commercial species of crustaceans and cephalopods“, this project used different types of environmental variables in order to characterize the habitats in each MPA:
- Topographic variables, which define the topographic characteristics of the submerged bottom.
- Bottom characterization, classification of the bottom type, attending to substrate and sediment characteristics.
- Water column variables, which characterize the trends in the physical and chemical properties of the water column.
Using the geographical location and catch data potential habitats were delimited for each species, and were compared with current boundaries of the protected areas. Future approaches and recommendations were drawn from the analysis and proposed for possible changes in MPAs delimitations.
Daniel Rodríguez Pérez helped us in developing this project.
Geographic boundaries on Os Miñarzos (Lira) MPA based on Habitat Suitability for the allocation of potential habitats of main commercial species of crustaceans and cephalopods.
The aim of this project was to develop an ENFA analysis (“Ecological – Niche Factor Analysis”) to create an adequacy index, ranging from 0 to 100, that accounts for the level of fitness that each location (pixel) has for each species. This analysis used the geographical information and catch data and related them with the actual eco-geographical variables in the area: sea bottom features (bathymetry, slope, aspect, bottom type classification,…) and water column variables (SST, Chlorophyll concentration…).
In this case study data were provided by the fishermen association of Lira for 5 commercial species (common octopus, common cuttlefish, velvet crab, European spider crab and common prawn). Acoustic data was used to derive the topographic variables, and oceanographic variables were obtained from oceanic remote satellite sensors (AVHRR and SeaWiFS).
Franck Le Barzic, Student of the Master “Géographie et des Espaces Aménagement Maritimes” from the Nantes University (France), collaborated in the development of this project.
We show below a presentation of the project (in French):