Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions. Most water, including drinking water, has a neutral pH that exists between 6.5 and 8.5, but acid rain has a pH level lower than this and ranges from 4–5 on average. The more acidic the acid rain is, the lower its pH is. Acid rain can have harmful effects on plants, aquatic animals, and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
The trout cod or bluenose cod, is a large predatory freshwater fish of the genus Maccullochella and the family Percichthyidae, closely related to the Murray cod. It was originally widespread in the south-east corner of the Murray-Darling river system in Australia, but is now an endangered species.
Loch Morar is a freshwater loch in Lochaber, Highland, Scotland. It is the fifth-largest loch by surface area in Scotland, at 26.7 km2 (10.3 sq mi), and the deepest freshwater body in the British Isles with a maximum depth of 310 m (1,017 ft). The loch was created by glacial action around 10,000 years ago, and has a surface elevation of 9 metres (30 ft) above sea level. It separates the traditional district of North Morar, from Arisaig and Moidart.
The Merrick, or simply Merrick, is a mountain in the Range of the Awful Hand, a sub-range of the Galloway Hills range, part of the Southern Uplands of Scotland. The summit elevation is 843 metres, making it the highest mountain in the Southern Uplands and southern Scotland.
The Southern Uplands are the southernmost and least populous of mainland Scotland's three major geographic areas. The term is used both to describe the geographical region and to collectively denote the various ranges of hills and mountains within this region. An overwhelmingly rural and agricultural region, the Southern Uplands are partly forested and contain many areas of open moorland - the hill names in the area are congruent with these characteristics.
Hydrobiology is the science of life and life processes in water. Much of modern hydrobiology can be viewed as a sub-discipline of ecology but the sphere of hydrobiology includes taxonomy, economic and industrial biology, morphology, and physiology. The one distinguishing aspect is that all fields relate to aquatic organisms. Most work is related to limnology and can be divided into lotic system ecology and lentic system ecology.
The Macquarie perch is an Australian native freshwater fish of the Murray-Darling river system. It is a member of the family Percichthyidae and is closely related to the golden perch.
The Battle of Glen Trool was a minor engagement in the First War of Scottish Independence, fought in April 1307. Glen Trool is a narrow glen in the Southern Uplands of Galloway, Scotland. Loch Trool is aligned on an east–west axis and is flanked on both sides by steep rising hills, making it ideal for an ambush. The battlefield is currently under research to be inventoried and protected by Historic Scotland under the Scottish Historical Environment Policy of 2009.
The Galloway Hills are part of the Southern Uplands of Scotland, and form the northern boundary of western Galloway. They lie within the bounds of the Galloway Forest Park, an area of some 300 square miles (800 km2) of largely uninhabited wild land, managed by Forestry and Land Scotland. The unusual place names reflect a mixture of the Old Norse and Scottish Gaelic languages and hint at the range of influences which have acted on society within the area over the centuries.
Loch Doon is a freshwater loch in Carrick, Scotland. The River Doon issues from its northern end, while the loch itself receives waters from Gala Lane and Loch Enoch via Eglin Lane.
Human impact on the nitrogen cycle is diverse. Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural N fixation. As a consequence of anthropogenic inputs, the global nitrogen cycle (Fig. 1) has been significantly altered over the past century. Global atmospheric nitrous oxide (N2O) mole fractions have increased from a pre-industrial value of ~270 nmol/mol to ~319 nmol/mol in 2005. Human activities account for over one-third of N2O emissions, most of which are due to the agricultural sector. This article is intended to give a brief review of the history of anthropogenic N inputs, and reported impacts of nitrogen inputs on selected terrestrial and aquatic ecosystems.
A wild fishery is a natural body of water with a sizeable free-ranging fish or other aquatic animal population that can be harvested for its commercial value. Wild fisheries can be marine (saltwater) or lacustrine/riverine (freshwater), and rely heavily on the carrying capacity of the local aquatic ecosystem.
Loch Neldricken is a loch in Galloway to the south-east of Merrick, south of Craig Neldricken and west of Craignaw. The loch is almost bisected by a long promontory. It drains via the short Mid Burn into Loch Valley and then via Gairland Burn down to Loch Trool.
Loch Valley is a loch in Galloway Forest Park to the east of Buchan Hill, north of the Rig of the Jarkness and southwest of Craignaw. It drains via Gairland Burn down to Loch Trool.
Mullwharchar is a hill in the Dungeon Hills, a sub-range of the Galloway Hills range, part of the Southern Uplands of Scotland. Mullwarchar is situated to the north of Loch Enoch, west of Corserine, northeast of Merrick and east of Kirriereoch Hill. There are 3 cliffs on the mountain named The Slock, The Tauchers and The Organ Pipes and some routes on these are occasionally climbed. Mullwharchar's summit is fairly flat and dotted with erratics.
The Round Loch of Glenhead is a small upland single basin loch in Dumfries and Galloway. It is situated within Galloway Forest Park to the west of the hill Craiglee. It forms a pair with the nearby Long Loch of Glenhead. Both lochs are of similar sizes and each have a small island. The two lochs are separated from Loch Valley and Loch Naroch to the north by the Rig of the Jarkness. The loch is drained to the southwest by Round Loch Burn, which after joining into Glenhead Burn flows into Loch Trool.
Kirriereoch Loch is a small, shallow, square shaped, freshwater loch in Dumfries and Galloway, in the Southern Uplands of south-west Scotland. It lies approximately 12 mi (19 km) north of the town of Newton Stewart. It is a part of the Wood of Cree Nature Preserve system
Freshwater acidification occurs when acidic inputs enter a body of fresh water through the weathering of rocks, invasion of acidifying gas, or by the reduction of acid anions, like sulfate and nitrate within a lake. Freshwater acidification is primarily caused by sulfur oxides (SOx) and nitrogen oxides (NOx) entering the water from atmospheric depositions and soil leaching. Carbonic acid and dissolved carbon dioxide can also enter freshwaters, in a similar manner associated with runoff, through carbon dioxide-rich soils. Runoff that contains these compounds may incorporate acidifying hydrogen ions and inorganic aluminum, which can be toxic to marine organisms. Acid rain is also a contributor to freshwater acidification. It is created when SOx and NOx react with water, oxygen, and other oxidants within the clouds.
The Dungeon Hills are a range of hills in the Galloway Hills range, part of the Southern Uplands of Scotland. The central of three parallel ridges, they are neighboured by the Range of the Awful Hand to the west and the Rhinns of Kells to the east. The range is also perpendicular to the Minnigaff Hills range, immediately south. In total, these four ranges are part of the Galloway Forest Park.
The Rhinns of Kells are a range of hills in the Galloway Hills range, part of the Southern Uplands of Scotland. The most easterly of three parallel ridges, they are neighboured to the west by the Range of the Awful Hand and the Dungeon Hills. The eastern portion of the Minnigaff Hills range lies immediately southwest of the range. In total, these four ranges are part of the Galloway Forest Park. The ridge is located entirely within Dumfries and Galloway, with the base of the western flanks being a northwestern boundary of the county.
