A mechanical seaweed harvester may also be used. Revealed at low spring tides. The impact objective is sustainable production of seaweed for a range of commercial applications. These efforts also ensure that the wildlife at the sites around Caithness is not disturbed by having all SHORE harvesters trained in the Marine Wildlife Conduct Code. Individual cutters handle their own cutting areas and rotate them to ensure sustainability. For example, some grow from the base and some grow from the tips, so we harvest them in different ways to allow them to grow back. Although this species is also known as sea spaghetti, I prefer thongweed because it brings those sea nymphs to mind. 25-40ft depth is its favoured depth, around reefs and coastline. At Sandy Bay in south Devon, some years ago, I discovered that its mile of very wide sandy beach had disappeared completely beneath an 8in layer of this seaweed. Unlike the seaweeds coating Garvie Bay's rocky shore, it prefers deeper waters that cover it even at low tide. Edible; used as a thickening agent. Here are 10 types of seaweed you should know. Removal using a vessel for operational reasons, Firth of Lorn; Argyll islands including Luing and the Garvellachs, Unspecified small amount (range: tens of kilos), Up to 11,500 wet tonnes per annum on CES foreshore, Additional tonnage on private, community land unknown. The trial also includes growing sea urchins on some of the seaweed. 3.5.1. There is a significant seaweed resource (Scottish Government, 2016), particularly abundant in three geographical areas: west of the Outer Hebrides, the Minch and Inner Hebrides and the north coast of Orkney. It came first to France, arriving with the cultivated Pacific oyster, then made its way to the south coast of England. MaraSeaweed, Angus Bremmer. This method involves the collection of beach-cast species from the strandline using tractors or JCBs. Transition elements & organo-metal e.g. It is therefore crucial that when we use our seas as a means of food production that we do so sustainably with as little impact as possible. Small scale projects would be 'screened out' of such requirements, if appropriate, following consultation. The maps in Figure 1 show the known current and potential seaweed resource areas by type of seaweed. In conventional salmon farming, around 60% of the nitrogen in the salmon feed is lost to the wider loch ecosystem and can have negative ecological impacts if present in high concentrations. As the name suggests, this species grows in a spiral. The relevant environmental protection objectives, at the international, European or national level [12] , are summarised below and described in Appendix B . Seaweeds in Scotland's coastal waters fall into the following five broad categories: 3.1.2. 3.15.3. The Crown Estate applies a proportionate approach to the leasing of wild harvesting activities ( Figure 10). In the west region maerl is found within sea lochs and inlets on the mainland such as the Sound of Arisaig and Loch Laxford and areas such as Loch nam Madadh and the Sound of Barra in the Outer Hebrides. Boiled for half an hour, copious quantities of green slime are produced, which is then strained through muslin and whisked with sweetened warm milk and cream. In the Outer Hebrides cutting is done manually (sickle) or mechanically (seaweed harvesting boat). Where literature has a DOI, you can click on the DOI link to be taken directly to the source material. This species starts its life growing as a small button-like structure on the rocks. It also associates all pressures that might be exerted by a defined list of activities at a particular benchmark. ID notes: Forms fronds of variable shape which are thin and membranous. France and Spain for sea vegetables; France and Portugal in the bioactives sector), however some Scottish products have already penetrated global markets and the Scottish sector could potentially benefit from promotion of Scottish seaweed Edible; used as a curry-like spice. In Scotland, hand cutting has been the most common method of harvesting in the wild (Burrows et al., 2010; Scottish Executive, 2001). These mushrooms are very often found on their own, causing confusion to those new to phycology. Other smaller beds are found along the West coast of Scotland, such as in Loch Ryan, Loch Sunart, in the Montrose Basin and in the Forth and Tay Estuaries ( JNCC, 1995; SNH, undated). In terms of biomass, the majority of Ascophyllum nodosum around the Outer Hebrides is primarily located around Lewis, North Uist and South Uist and Harris (Burrows et al., 2010). www.researchgate.net/publication/269996303_Integrated_multi-trophic_aquaculture_IMTA_in_marine_temperate_waters, https://pureadmin.uhi.ac.uk/ws/portalfiles/portal/3263673/Burrows2018_1.pdf, www.gov.scot/publications/wild-seaweed-harvesting-strategic-environmental-assessment-environmental-report/, https://www.zerowastescotland.org.uk/content/integrated-multi-trophic-aquaculture, Lack of regional evidence / robust assessment criteria, but no or few concerns for some local areas, Lack of regional evidence / robust assessment criteria, but some concerns for some local areas, Lack of regional evidence / robust assessment criteria, but many concerns for some local areas.