Einfluss von Reifung und technologischen Behandlungen auf die Proteine des Rogens von Regenbogenforellen (Oncorhynchus mykiss)

The use of differential scanning calorimetry for investigating the yolk proteins of the roe of rainbow trout allows to monitor the influence of maturation and vitellogenesis which modifies the DSC curves with regard to transition temperature and enthalpy. Two endothermic peaks become more and more pronounced with increasing maturation of the roe. However, it is still not known which protein fraction is represented by each of the peaks. DSC curves of yolk protein depend on fish species. They are also influenced by technological treatments. Further investigation is necessary to discover whether or not yolk proteins of other fish species are influenced in the same manner by maturation and vitellogenesis and which protein fraction represent the individual peaks.

Protecting a threatened coastal fish species through regional collaboration

Rainbow smelt (Osmerus mordax) are small anadromous fish that live in nearshore coastal waters during much of the year and migrate to tidal rivers to spawn during the spring. They are a key prey species in marine food webs, as they are consumed by larger organisms such as striped bass, bluefish, and seabirds. In addition, smelt are valued culturally and economically, as they support important recreational and commercial fisheries. The Atlantic Coast range of rainbow smelt has been contracting in recent decades. Historically, populations extended from the Delaware River to eastern Labrador and the Gulf of St. Lawrence (Buckley 1989). More recent observations indicate that rainbow smelt spawning populations have been extirpated south of Long Island Sound, and evidence of spawning activity is extremely limited between Long Island and Cape Cod, MA. In the Gulf of Maine region, spawning runs are still observed, but monitoring surveys as well as commercial and recreational catches indicate that these populations have also declined (e.g., Chase and Childs 2001). Many diverse factors could drive the recently noted declines in rainbow smelt populations, including spawning habitat conditions, fish health, marine environmental conditions, and fishing pressure. Few studies have assessed any of these potential threats or their joint implications. In 2004, the National Marine Fisheries Service (NMFS) listed rainbow smelt as a species of concern. Subsequently, the states of Maine, New Hampshire, and Massachusetts were awarded a grant through NMFS’s Proactive Conservation Program to gather new information on the status of rainbow smelt, identify factors that affect spawning populations, and develop a multi-state conservation program. This paper provides an overview of this collaborative project, highlighting key biological monitoring and threats assessment research that is being conducted throughout the Gulf of Maine. (PDF contains 4 pages)

Femtosecond filamentation and supercontinuum generation in silver-nanoparticle-doped water

The authors report the investigation of filament and supercontinuum generation by focusing a femtosecond laser beam into water doped with silver nanoparticles. The silver nanoparticles enhance the nonlinear optical response of water, leading to broadening of supercontinuum spectra in self-focused femtosecond filaments. During the propagation of the supercontinuum light in the filament, the silver nanoparticles preferentially scatter the short-wavelength light near the plasmon resonant wavelength peak, followed by the scattering of the long-wavelength light. Thus, a side view of the filament shows a full-color spectrum in the visible range, which is herein called "rainbow filament." (c) 2007 American Institute of Physics.

Da impossibilidade da lucidez: a dissolução do Século XX em O arco-íris da gravidade, de Thomas Pynchon

Esta tese analisa a relação entre a ficcionalização da História Moderna e o desenvolvimento de uma ética da vida cotidiana no romance O arco-íris da gravidade, do norte-americano Thomas Pynchon. Para a sua análise e interpretação, será desenvolvido, no primeiro capítulo, um aporte teórico-metodológico que coteje a complexidade formal da narrativa (que dificulta a sua síntese temática) para se estabelecer, a partir daí, as condições de possibilidade de detecção de núcleos temáticos recorrentes que, numa rede de interconexões não-concêntrica ou dispersiva , perspectivizam no romance uma totalização fraturada do sistema-mundo moderno e contemporâneo. No segundo capítulo a ficcionalização do século XX é apresentada em suas configurações metafísica e intra-mundana, e no capítulo final são analisadas as condições que ela impõe para a formação, dentro do real ficcional, de rotinas e modos de vida eticamente positivos

Langcliffe hatchery investigations 1982 [on River Ribble near Settle]

Langcliffe hatchery investigations looks at fish mortalities for salmon (fry), sea trout, brown trout and rainbow trout, and explores the River Ribble's water supply.

Drawn to the Sea: Charles Bradford Hudson (1865-1939), Artist, Author, Army Officer, with Special Notice of His Work for the United States Fish Commission and Bureau of Fisheries

The biography of Charles Bradford Hudson that follows this preface had its seeds about 1965 when I (VGS) was casually examining the extensive files of original illustrations of fishes stored in the Division of Fishes, National Museum of Natural History, Smithsonian Institution. I happened upon the unpublished illustration of a rainbow trout by Hudson and was greatly impressed with its quality. The thought occurred to me then that the artist must have gone on to do more than just illustrate fishes. During the next 20 years I occasionally pawed through those files, which contained the work of numerous artists, who had worked from 1838 to the present. In 1985, I happened to discuss the files with my supervisor, who urged me to produce a museum exhibit of original fish illustrations. This I did, selecting 200 of the illustrations representing 21 artists, including, of course, Hudson. As part of the text for the exhibit, Drawn from the Sea, Art in the Service of Ichthyology, I prepared short biographies of each of the artists. The exhibit, with an available poster, was shown in the Museum for six months, and a reduced version was exhibited in U.S. and Canadian museums during the next 3 years.

Eden Fisheries Advisory Committee 14th January, 1975

This is the report from the Eden Fisheries Advisory Committee meeting, which was held on the 14th January, 1975. It covers information on the proposed regional fishing licence duties, and the report of the Working Party on future regional hatchery requirements, which includes sections on the future demands for migratory salmonids, brown and rainbow trout, and coarse fish plus the most effective means of meeting future demands. It also covers the Unit Fisheries Officer's report on fisheries activities. This section includes biological work undertaken on the Eden, information on the fishing of migratory fish, trout and coarse fish, hatchery 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.

Lune, Wyre & Furness Fisheries Advisory Committee 20th January, 1975

This is the report from the Lune, Wyre and Furness Fisheries Advisory Committee meeting, which was held on the 20th January, 1975. It covers information on the proposed regional fishing licence duties, and the report of the Working Party on future regional hatchery requirements, which includes sections on the future demands for migratory salmonids, brown and rainbow trout, and coarse fish plus the most effective means of meeting future demands. It also covers the Unit Fisheries Officer's report on fisheries activities. This section includes numbers on salmon and sea trout ova which were taken to Middleton hatchery. 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.

South Lancashire Fisheries Advisory Committee 22nd January, 1975

This is the report from the South Lancashire Fisheries Advisory Committee meeting, which was held on the 22nd January, 1975. It covers information on the proposed regional fishing licence duties, and the report of the Working Party on future regional hatchery requirements, which includes sections on the future demands for migratory salmonids, brown and rainbow trout, and coarse fish plus the most effective means of meeting future demands. It also covers the Unit Fisheries Officer's report on fisheries activities which looks at Langcliffe hatchery. 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.

Mersey & Weaver Fisheries Advisory Committee 27th January, 1975

This is the report from the Mersey and Weaver Fisheries Advisory Committee meeting, which was held on the 27th January, 1975. It covers information on the proposed regional fishing licence duties, and the report of the Working Party on future regional hatchery requirements, which includes sections on the future demands for migratory salmonids, brown and rainbow trout, and coarse fish plus the most effective means of meeting future demands. It also covers the report by the Unit Water Quality Officer on fisheries activities, which looks at fisheries management, stocking and biological work carried out on the River Bollin, Etherow and Goyt. Information on fish toxicity tests including methods and results are also included. 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.

South Lancashire Fisheries Advisory Committee 5th April, 1978

This is the report from the South Lancashire Fisheries Advisory Committee meeting, which was held on the 5th April, 1978. It covers information on fisheries income and expenditure, net licence duties and the concern over the growning population of the feral mink. It also includes the report by the area fisheries officer on river conditions and fishing, and migratory fish movements at Waddow Weir, Winckley Hall and Locks Weir. Included in this report is an update on Langcliffe hatchery, the stocking of brown trout and rainbow trout by the Water Authority and Angling Associations, and fish mortality and fish disease. 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.

Mersey & Weaver Fisheries Advisory Committee 12th April, 1978

This is the report from the Mersey and Weaver Fisheries Advisory Committee meeting, which was held on the 12th April, 1978. It covers information on fisheries income and expenditure, the pilot warm-water coarse fish hatching and rearing installation at Great Sankey, annual fishing permits on reservoirs and terminated angling leases. It also includes the report by the area fisheries officer on river conditions and fishing, and an update on Tintwistle hatchery and Worthington Stock Pools. Included in this report is also the stocking numbers of coarse fish, brown trout and rainbow trout by the Angling Associations, pollution incidents and fish mortalities and fisheries management. 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.

Mersey & Weaver Fisheries Advisory Committee 21st June, 1978

This is the report from the Mersey and Weaver Fisheries Advisory Committee meeting, which was held on the 21st June, 1978. It covers information on the monitoring of radioactivity in migratory fish, fishing offences and prosecutions and the income from sale of rod and line licences. It also includes the report by the area fisheries officer on river conditions and fishing, and an update on Tintwistle hatchery and Worthington Stock Pools. Included in this report is also the pollution incidents, fish mortalities, fisheries management and the stocking numbers of coarse fish, brown trout and rainbow trout by the Angling Associations. 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.

South Lancashire Fisheries Advisory Committee 28th June, 1978

This is the report from the South Lancashire Fisheries Advisory Committee meeting, which was held on the 28th June, 1978. It covers information on the monitoring of radioactivity in migratory fish, fishing offences and prosecutions, the income from the sale of rod and line licences, the review of discharge consent conditions, illegal netting and issues relating to Worthington and Stocks reservoir. It also covers the report by the area fisheries officer on river conditions and fishing, migratory fish movements, Langcliffe hatchery, fish mortalities and stocking numbers of brown trout, rainbow trout and coarse fish by the Angling Associations. 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.

Mersey & Weaver Fisheries Advisory Committee 19th January, 1977.

This is the report from the Mersey and Weaver Fisheries Advisory Committee meeting, which was held on the 19th January, 1977. The report contains information the construction of a new surface water drain to Pennington Flash, fisheries activities, fish stocking, eel fishing and estuarial waters, and infectious Pancreatic Necrosis. The section on fisheries activities includes brown/rainbow trout, roach, perch, bream, carp, tench and rudd stocking and fish mortalities. The section on Infectious Pancreatic Necrosis highlights its prevention on imports of salmonid fish and ova. 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.