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216 record(s)

 

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From 1 - 10 / 216
  • IPMA conducts regularly, since 1996, monitoring campaigns of bivalve molluscs banks that occur in the oceanic coast of the South West zone, in order to assess their condition. These campaigns allow the adjustment of the fishing effort and fishing quotas to the state of resources in order to not compromise its sustainability.This resource shows the geographic distribution of white clam biomass index (g/5 minutes per drag) recorded during the bivalve banks monitoring campaign held in June 2014.

  • Within Portugal's National Biological Sampling Project (PNAB) a set of activities are conducted in the collection, management and use of biological data, collected from the registered commercial fleet in mainland Portugal (fisheries-dependent data) and several research surveys (independent fisheries data). These activities allow the assessment of the state of fishery resources, population structure, distribution and abundance of resources, diversity and dynamics of biological communities associated with the fishery resources and biological studies (growth, reproduction).This resource shows the geographic distribution of Norway lobster abundancy index (nr. individuals/hour) registered during the CRUSTACEOS2010 campaign in June 2010.

  • Limits used for the issuance of Meteorological Forecast Reports for Maritime Navigation in the areas of sea of national responsibility (Mainland Portugal, Azores and Madeira), inserted mainly in METAREA II, according to the standards defined by the Global Maritime Distress and Safety System (GMDSS).

  • Within Portugal's National Biological Sampling Project (PNAB) a set of activities are conducted in the collection, management and use of biological data, collected from the registered commercial fleet in mainland Portugal (fisheries-dependent data) and several research surveys (independent fisheries data). These activities allow the assessment of the state of fishery resources, population structure, distribution and abundance of resources, diversity and dynamics of biological communities associated with the fishery resources and biological studies (growth, reproduction).This resource shows the geographic distribution of european hake abundancy index (nr. individuals/hour) registered during the DEMERSAL2010 campaign in September 2010.

  • Areas that evidence the occurrence of submarine landslides, located between the Middle Atlantic Rift zone (Azores archipelago) and the Continental margin.

  • Earthquakes (epicenters) and areas that mark large submarine landslides of sedimentary material, which caused tsunamis whose impact was recorded on the Portuguese coast.

  • The current artificial reefs were deployed, starting with a pilot project in 1990, in order to serve as instrument for the revitalization of coastal ecosystems, planning of coastal fisheries and integrated coastal zone management. Each reef is composed by, at least, 2940 concrete modules with a weight of 3 tons and 36 large modules with more than 40 tons each. The reef complex groups 20,748 modules (with a total volume of over 100,000 m3), occupying discontinuously a total area of approximately 43.5 km2, with an area of influence greater than 67 km2.

  • Volcanic centres in the Portuguese offshore, located between the Mid-Atlantic Rift zone (Azores archipelago) and the continental margin.

  • Location of structures resulting from the submarine fluids emissions, such as: mud volcanoes (methane hydrates); Pockmaks (methane) and hydrothermal vents (fluids enriched in salts and metallic elements), located between the Mid-Atlantic Rift zone (Azores archipelago) and the continental margin.

  • Delimitation of portuguese coastal shellfish waters, according to the Law nº 236/98 and the European Directive 2006/113/EC concerning the protection of the aquactic environment and improvement of water quality in order to support shellfish (bivalve and gasteropod molluscs) life and growth and thus to contribute to the high quality of shellfish products directly edible by man, as well as the evaluation of the quality of coastal shellfish waters - Conformity according to Directive 113/2006 / EC, excluding the metals silver (Ag) and Arsenic (As), and fecal coliforms.