Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Allen W. Knight"'
Autor:
Stephen G. Nelson, Allen W. Knight
Publikováno v:
Proceedings of the annual meeting - World Mariculture Society. 8:779-785
Recent work has shown that the metabolic responses of an organism to dietary properties are important determinants of the physiological processing of calories and nutrients. The effects of diet on the respiratory metabolism of a species is an especia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9615c4164349859481ac5bcaa178362d
https://doi.org/10.1111/j.1749-7345.1977.tb00160.x
https://doi.org/10.1111/j.1749-7345.1977.tb00160.x
Publikováno v:
Proceedings of the annual meeting - World Mariculture Society. 7:667-675
Several aquatic plants (Azolla filiculoides, Cladophora sp., Elodea sp., and Lemna sp.) were fed singly to groups of 30 juvenile Malaysian prawns (Macrobrachium rosenbergii) for 28 days, and comparisons were made with control prawns fed Ralston Purin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d715207d38d7ebc037bf2e2407700dff
https://doi.org/10.1111/j.1749-7345.1976.tb00095.x
https://doi.org/10.1111/j.1749-7345.1976.tb00095.x
Publikováno v:
Archives of Environmental Contamination and Toxicology. 36:295-300
The input of selenium from subsurface agricultural drainage into surface water systems can result in the accumulation of toxic concentrations of selenium in aquatic food chains. Elevated selenium concentrations in aquatic systems is a significant env
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::848fce8edc326a11c480e9cd0375c168
https://doi.org/10.1007/s002449900474
https://doi.org/10.1007/s002449900474
Autor:
T. N. Rosetta, Allen W. Knight
Publikováno v:
Archives of Environmental Contamination and Toxicology. 29:351-357
High concentrations of selenium threaten waterfowl at California San Joaquin Valley agricultural wastewater evaporation ponds. This study evaluates and compares two routes of Se exposure and uptake by third instar Ephydra cinerea (brine fly) larvae.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e13f05a2f61d743cfcea80640afc42c
https://doi.org/10.1007/bf00212500
https://doi.org/10.1007/bf00212500
Publikováno v:
Archives of Environmental Contamination and Toxicology. 29:104-109
The bioaccumulation and toxicity of selenium in a simple aquatic food chain was investigated by feeding a diet of seleniferous algae (Selenastrum capricornutum) to fourth instar midge (Chironomus decorus) larvae. Treatment diets consisted of S. capri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::130eea09da118435c16afcdb2a6c1ffb
https://doi.org/10.1007/bf00213094
https://doi.org/10.1007/bf00213094
Autor:
Allen W. Knight, Kurt J. Maier
Publikováno v:
Archives of Environmental Contamination and Toxicology. 25:365-370
The increased flux of selenium into aquatic ecosystems due to anthropogenic activities has resulted in the degradation of several systems. Initial experiments examined the comparative acute toxicity of waterborne selenate, selenite, and seleno-DL-met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f342f0830963849947f5cc57db944a9
https://doi.org/10.1007/bf00210728
https://doi.org/10.1007/bf00210728
Publikováno v:
Environmental Toxicology and Chemistry. 12:755-763
Elevated concentrations of the trace element selenium (Se) have resulted in the degradation of several aquatic ecosystems. This study evaluated the comparative toxicity of several aqueous chemical species of selenium to an aquatic cladoceran, Daphnia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbfcf9c97dcaa2246370c9f45469438a
https://doi.org/10.1002/etc.5620120417
https://doi.org/10.1002/etc.5620120417
Publikováno v:
Annals of the Entomological Society of America. 84:201-206
Drumming is described for the first time in North American species of Bolshecapnia and Capnia (Capniidae), Oemopteryx (Taeniopterygidae), and Nemoura (Nemouridae). Bolshecapnia maculata (Jewett) and Capnia quadrituberosa Hitchcock males call with sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::259b836b1ff2a66083d53e2e60b190bc
https://doi.org/10.1093/aesa/84.2.201
https://doi.org/10.1093/aesa/84.2.201
Autor:
Allen W. Knight, Kurt J. Maier
Publikováno v:
Archives of Environmental Contamination and Toxicology. 20:282-287
The concentrations of many elements, including boron, are increasing in aquatic ecosystems due to anthropogenic activities. Laboratory studies were undertaken to evaluate the toxicity of waterborne boron to two key freshwater macroinvertebrates and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54558dd054fecc196c395780d5f6ac79
https://doi.org/10.1007/bf01055917
https://doi.org/10.1007/bf01055917
Publikováno v:
Environmental Entomology. 19:1681-1688
A laboratory culture method for the benthic invertebrate Chironomus decorus Johannsen is described in detail. The culture requires minimal maintenance and produces an abundant supply of midge larvae throughout the year for many types of bioassays. Ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e73af6846f209277fb0caab62437bdc
https://doi.org/10.1093/ee/19.6.1681
https://doi.org/10.1093/ee/19.6.1681