Northern Area Fisheries Advisory Committee 11th October, 1982

This is the report from the Northern Area Fisheries Advisory Committee meeting, which was held on the 11th October, 1982. The report contains sections on Rod and Line Fishing Licences Format, Mink in North Cumbria, Fishing offences and prosecution, West Cumbria Water Resources, and Fisheries Activities. The section on fisheries activities is reported by the area fisheries officer and includes river conditions and fishing, migratory fish movement, Holmwrangle hatchery, and Fish mortalities/Pollutions. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.

Central Area Fisheries Advisory Committee 13th October, 1982

This is the report from the Central Area Fisheries Advisory Committee meeting, which was held on the 13th October, 1982. The report contains sections on Rod and Line Fishing Licences Format, Salmon and Freshwater Fisheries Act 1975 for River Lune, a proposed Pike Ranching Scheme on Esthwaite Water and Fisheries Activities. The section on fisheries activities is reported by the area fisheries officer and includes river conditions and fishing, migratory movement, hatcheries, (Middleton, Dalton in Furness, Langcliffe), stocking, poaching and management works. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.

Southern Area Fisheries Advisory Committee 20th October, 1982

This is the report from the Southern Area Fisheries Advisory Committee meeting, which was held on the 20th October, 1982. The report contains sections on Rod and Line Fishing Licences Format, Fishing offences and prosecution, and Report of Fisheries Activities. The section on fisheries activities is reported by the area fisheries officer and includes river conditions and fishing, migratory movement, hatcheries, (Hollingworth, Pilot Hatchery), stocking by the Authority, fish disease, management works and prosecutions. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.

West Cumbria Special Fisheries Advisory Group 9th March, 1983

This is the report from the West Cumbria Special Fisheries Advisory Group meeting, which was held on the 9th March, 1983. The report contains sections on Fish Passes at Yearl Weir River Derwent, Ennerdale, and Ehen; River Calder abstraction and augmentation from boreholes; and the augmentation of River Ehen by minewater to support increased abstraction by BNFL. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.

Northern Area Fisheries Advisory Committee 28th March, 1983

This is the report from the Northern Area Fisheries Advisory Committee meeting, which was held on the 28th March, 1983. The report contains sections on rules for fishing at Haweswater and Thirlmere, Fyke nets and otters, Whirling disease, and Fisheries Activities. The section on Fyke nets looks at the loss of at least 23 otters in fyke nets over eighteen months. The section on Fisheries Activities is reported by the area fisheries officer and includes river conditions and fishing, migratory fish movement, Holmwrangle hatchery, stocking by Angling Associations, fish mortalities and pollution. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.

Central Area Fisheries Advisory Committee 30th March, 1983

This is the report from the Central Area Fisheries Advisory Committee meeting, which was held on the 30th March, 1983. The report contains sections on Fyke nets and otters, Whirling disease, the decline of Salmon and Sea Trout Catches in Furness and South Cumbria Fisheries Association, spawning tributaries, Langcliffe hatchery, and fisheries activities. The section on Fisheries Activities is reported by the area fisheries officer and includes river conditions and fishing, migratory fish movement, Hatcheries (Middleton hatchery, salmon cages in Dalton and Furness, salmon and sea trout), stocking, fish disease, poaching, management work and prosecutions. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.

Southern Area Fisheries Advisory Committee 6th April, 1983

This is the report from the Southern Area Fisheries Advisory Committee meeting, which was held on the 6th April, 1983. The report contains sections on Fyke nets and otters, Whirling disease, Salmon and Freshwater Fisheries Act 1975, and fisheries activities. The section on fisheries activities is reported by the area fisheries officer and includes river conditions and fishing, hatcheries (Hollingworth, pilot hatchery), migratory fish movement, stocking by the Authority, fish mortalities/disease, pollution, and prosecutions. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.

Regional Fisheries Advisory Committee 4th March, 1985

This is the report from the Regional Fisheries Advisory Committee meeting, which was held on the 4th March, 1985. The report contains sections on Public Water Supplies in West Cumbria, proposals for water supply for British Nuclear Fuels Limited (BNFL), and the proposals for a fish pass at Ennerdale Weir. The section on BNFL looks at the proposal of British Nuclear Fuels Limited to take more water from Wastwater. This section includes information about Wastwater, Calder Valley Boreholes, Mine Water and the River Ehen, and other groundwater investigations. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.

Regional Fisheries Advisory Committee 23rd May, 1988.

This is the report from the Regional Fisheries Advisory Committee meeting, which was held on the 23rd May, 1988. The report contains sections on fishing licence duties and sales, fixed engine byelaws, close season for coarse fish, review of fishing byelaws, catch returns, and acid pollution in the Wiza Beck and the River Wampool. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which came into existence in 1996.

Gunnislake Fish Counter Annual Report 2003

This is the Gunnislake Fish Counter, Annual Report 2003 produced by the Environment Agency South West Region on March 2004. The report presents the daily upstream counts of migratory salmonids recorded at Gunnislake weir fish counting station and trap (River Tamar SX 435 713) in 2003. Data contained within this report covers the period of the commercial migratory salmonid net buy-back scheme and the National Spring Salmon Bylaws. The total combined annual count of upstream migrating salmon and sea trout on the River Tamar in 2003 was 7% higher than the 9-year average. The minimum salmon count for 2003 was 3626. The 2003 upstream count for sea trout was 9913. Trap data for 2003 is consistent with historic trapping and net data in terms of the size split between salmon and sea trout stocks.

Acid waters in North West England. The effect of liming agricultural land

This is the Acid waters in North West England: The effect of liming agricultural land on the chemistry and biology of the River Esk, North West England report produced by National Rivers Authority in 1992. This report focuses on the study of Acid Waters in the North West Region of England, UK, which began in 1982 and sampling was completed in October 1990. This work was initiated because of the observation of the simultaneous mortality of adult and juvenile salmon and sea-trout in both the River Esk and adjacent River Duddon in June 1980. Investigations at that time indicated that an "acid episode" was the most likely cause of this mortality. A land use study indicated that a reduction in agricultural liming may have been a major factor in the development of acid episodes and consequent fish kills in the River Esk and River Duddon. However there was no evidence that the mortalities of salmonids in the early 1980's were due to a reduction in agricultural liming. They were due to some other phenomenon such as a period of intense acid deposition.

Change in Pacific Northwest coastal ecosystems. Proceedings of the Pacific Northwest Coastal Ecosystems Regional Study Workshop, August 73-14, 1996, Troutdale, Oregon

Over the past one hundred and fifty years, the landscape and ecosystems of the Pacific Northwest coastal region, already subject to many variable natural forces, have been profoundly affected by human activities. In virtually every coastal watershed from the Strait of Juan de Fuca to Cape Mendocino, settlement, exploitation and development of resou?-ces have altered natural ecosystems. Vast, complex forests that once covered the region have been largely replaced by tree plantations or converted to non-forest conditions. Narrow coastal valleys, once filled with wetlands and braided streams that tempered storm runoff and provided salmon habitat, were drained, filled, or have otherwise been altered to create land for agriculture and other uses. Tideflats and saltmarshes in both large and small estuaries were filled for industrial, commercial, and other urban uses. Many estuaries, including that of the Columbia River, have been channeled, deepened, and jettied to provide for safe, reliable navigation. The prodigious rainfall in the region, once buffered by dense vegetation and complex river and stream habitat, now surges down sirfiplified stream channels laden with increased burdens of sediment and debris. Although these and many other changes have occurred incrementally over time and in widely separated areas, their sum can now be seen to have significantly affected the natural productivity of the region and, as a consequence, changed the economic structure of its human communities. This activity has taken place in a region already shaped by many interacting and dynamic natural forces. Large-scale ocean circulation patterns, which vary over long time periods, determine the strength and location of currents along the coast, and thus affect conditions in the nearshore ocean and estuaries throughout the region. Periodic seasonal differences in the weather and ocean act on shorter time scales; winters are typically wet with storms from the southwest while summers tend to be dry with winds from the northwest. Some phenomena are episodic, such as El Nifio events, which alter weather, marine habitats, and the distribution and survival of marine organisms. Other oceanic and atmospheric changes operate more slowly; over time scales of decades, centuries, and longer. Episodic geologic events also punctuate the region, such as volcanic eruptions that discharge widespread blankets of ash, frequent minor earthquakes, and major subduction zone earthquakes each 300 to 500 years that release accumulated tectonic strain, dropping stretches of ocean shoreline, inundating estuaries and coastal valleys, and triggering landslides that reshape stream profiles. While these many natural processes have altered, sometimes dramatically, the Pacific Northwest coastal region, these same processes have formed productive marine and coastal ecosystems, and many of the species in these systems have adapted to the variable environmental conditions of the region to ensure their long-term survival.

Ascorbic acid turnover in the ocular tissues of some fishes

The ascorbic acid turnover from the ocular tissues of 11 species of fishes from a culture pond and the river Godavari (Andhra Pradesh, India) has been studied. The free ascorbic acid and ascorbigen contents were more in the case of bottom or deep dwelling fishes and the least in the case of surface living forms, depending upon the light penetration in the area that each species inhabits. The enzymic utilization and ascorbic acid-macromolecule complex varied among the fishes possibly depending upon individual energy requirements and not upon light intensity. No size-related or sex-related variation was observed. No variation was observed between riverine and pond-reared fishes of the same species.

Management of the nile perch, Lates niloticus, fishery in Lake Victoria in light of the changes in its life history characteristics

Nile perch, Lates niloticus Linnaeus, 1758, is a predatory fish of high commercial and recreational value. It can grow to a length of 2 m and a weight of 200 kg. In Uganda, Nile perch was originally found only in Lake Albert and the River Nile below Murchison Falls. The species is, however, widely distributed in Africa, occurring in the Nile system below Murchison Falls, the Congo, Niger, Volta, Senegal and in Lakes Chad and Turkana (Greenwood 1966).

Inshore demersal fisheries off Orissa coast

Results of bottom trawling in inshore areas off Paradeep with reference to total catch composition and catch per unit effort during 1962-1978 are reported. With increase in fishing effort, benthic species recorded the highest catch in 1969-'70 and thereafter it fluctuated. Fluctuations till 1968-'69 may be due to seasonal migration of fishes. The decline after 1971-'72 can be attributed to overfishing. Off Mahanadi, Devi and Rushikulya river mouths, showed a north-south migration of fishes from october. Presently off Devi river mouth is a rich ground for demersal fishes.