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Eutrophication - Phosphates - 2012 to 2019

Marine Scotland Information NMPi icon

Since 2001 surface water samples have been collected from Scottish coastal and offshore waters during January, and have been analysed for nutrients (nitrate, phosphate, silicate and ammonia) with the aim of establishing regional background nutrient concentrations and contributing towards an assessment of the eutrophication status of Scottish coastal and offshore waters.

Surface water samples were collected at 15 minute intervals from the non-toxic water supply of FRV Scotia IV, during the MSS CSEMP cruise. The input for the non-toxic water supply is situated on the hull of the ship at a depth of ~ 4.5 m. Water samples were analysed at sea within 10 hours of collection (where possible) using a Bran & Luebbe QuAAtro continuous flow autoanalyser. The method for analysis of nutrients in seawater is accredited to ISO17025 standards by the United Kingdom Accreditation Service.

Nutrient data can be assessed against assessment criteria established by OSPAR as indicators of nutrient enrichment (OSPAR 2005). Background levels (or concentrations) and assessment levels (50% above background levels) are used to assess nutrient concentrations; concentrations above the assessment level may lead, in time, to an undesirable disturbance to the marine ecosystem.

Eutrophication - Silicates - 2012 to 2019

Marine Scotland Information NMPi icon

Since 2001 surface water samples have been collected from Scottish coastal and offshore waters during January, and have been analysed for nutrients (nitrate, phosphate, silicate and ammonia) with the aim of establishing regional background nutrient concentrations and contributing towards an assessment of the eutrophication status of Scottish coastal and offshore waters.

Surface water samples were collected at 15 minute intervals from the non-toxic water supply of FRV Scotia IV, during the MSS CSEMP cruise. The input for the non-toxic water supply is situated on the hull of the ship at a depth of ~ 4.5 m. Water samples were analysed at sea within 10 hours of collection (where possible) using a Bran & Luebbe QuAAtro continuous flow autoanalyser. The method for analysis of nutrients in seawater is accredited to ISO17025 standards by the United Kingdom Accreditation Service.

Nutrient data can be assessed against assessment criteria established by OSPAR as indicators of nutrient enrichment (OSPAR 2005). Background levels (or concentrations) and assessment levels (50% above background levels) are used to assess nutrient concentrations; concentrations above the assessment level may lead, in time, to an undesirable disturbance to the marine ecosystem.

Eutrophication - Dissolved inorganic nitrogen (salinity normalised) 2002-2019

Marine Scotland Information NMPi icon

Since 2001 surface water samples have been collected from Scottish coastal and offshore waters during January, and have been analysed for nutrients (nitrate, phosphate, silicate and ammonia) with the aim of establishing regional background nutrient concentrations and contributing towards an assessment of the eutrophication status of Scottish coastal and offshore waters.

Surface water samples were collected at 15 minute intervals from the non-toxic water supply of FRV Scotia IV, during the MSS CSEMP cruise. The input for the non-toxic water supply is situated on the hull of the ship at a depth of ~ 4.5 m. Water samples were analysed at sea within 10 hours of collection (where possible) using a Bran & Luebbe QuAAtro continuous flow autoanalyser. The method for analysis of nutrients in seawater is accredited to ISO17025 standards by the United Kingdom Accreditation Service.

Nutrient data can be assessed against assessment criteria established by OSPAR as indicators of nutrient enrichment (OSPAR 2005). Background levels (or concentrations) and assessment levels (50% above background levels) are used to assess nutrient concentrations; concentrations above the assessment level may lead, in time, to an undesirable disturbance to the marine ecosystem.

Dissolved inorganic nitrogen (DIN) is the sum of the concentration of total oxidised nitrogen (TOxN) and ammonia. Ammonia contributes only about 5% to the DIN concentration in Scottish regions

Coastal settlement typology - Scotland 2016 - Linked later-life localities

Marine Scotland Information NMPi icon

The linked later-life localities layer consists of 53 coastal localities with an aging populaton. This is characterized on the basis of their census based socio-economic and demographic characteristics. This is the second stage of a based on a two-stage cluster analysis of coastal localities (defined as within 2 kilometres of the coast) with populations of greater than 1000 (for reasons of confidentiality).

The employment in these settlements is characterised by higher representation in information, communication, real estate, finance industries sectors and low levels of deprivation. There is a predominately older age profile in these settlements  over 45’s showing highest here with many couples with no children. There are high levels of owned housing and unpaid carers. There is highest car ownership in this cluster group.

 

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