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91.
92.
Antony M Hooper Jude A Bennison Mark C Luszniak John A Pickett Eleanor M Pow Lester J Wadhams 《Pest management science》1999,55(6):660-662
Western flower thrips (WFT) are attracted to three flowering verbena cultivars. The volatile components of these cultivars contain different enantiomers of linalool oxide which have been synthesised and one shown to be attractive to WFT. 相似文献
93.
Robbie A. Charters Robert J.G. Lester Rik C. Buckworth Stephen J. Newman Jennifer R. Ovenden Damien Broderick Olena Kravchuk Aaron Ballagh David J. Welch 《Fisheries Research》2010,101(1-2):94-99
The scombrid Scomberomorus semifasciatus is an important component of inshore fisheries in tropical Australia. Data on the parasite fauna of 593 fish from areas off northern and eastern Australia were examined for evidence of discrete fish populations. The parasites used were juveniles of Pterobothrium pearsoni, Callitetrarhynchus gracilis, Anisakis simplex (sensu latu) and Terranova sp. Tukey Kramer pairwise comparisons gave significant differences in the abundances of two or more parasites between fish from the east coast, the eastern Gulf of Carpentaria and the remainder of northern Australia. Multivariate analysis gave further evidence of differences and the results suggest that at least 4 populations or stocks of grey mackerel occur along the northern and eastern coastline of Australia. 相似文献
94.
The role of corporate social responsibility in creating a Seussian world of seafood sustainability
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Megan Bailey Helen Packer Laurenne Schiller Michael Tlusty Wilf Swartz 《Fish and Fisheries》2018,19(5):782-790
Approaches to counter the overfishing and aquaculture production crisis include those imposed by public governing bodies, as well as those implemented by businesses and non‐governmental organizations (NGOs). In the case of the latter, private actors govern fisheries consumption and production through corporate social responsibility (CSR). In this contribution, we focus on three key tools that businesses are increasingly turning towards in an effort to meet the one particular CSR goal of sustainable seafood sourcing. In this context, the key tools of certifications, fisheries improvement projects (FIPs) and traceability are reviewed, and their potential as well as limits in contributing to continual improvement in pursuit of global seafood sustainability are analyzed. We argue that seafood CSR has created its own whimsical and fantastical world, a Seussian world, in which company image has become more important than sustainability performance. We posit four important barriers that must be overcome to bring seafood CSR back to reality. Specifically, we suggest moving away from the business case for CSR, reducing accessibility barriers for small‐scale and developing world fisheries, reconciling different labels and sustainability concepts, and better recognizing the imperative role of the state in governing fisheries and seafood. 相似文献
95.
Gregory J. Fleming BBA DVM Nola V. Lester BVMS Rhoda Stevenson DVM Xeve S. Silver BS 《Veterinary radiology & ultrasound》2003,44(5):542-545
Hydrocephalus was diagnosed in a juvenile African Grey parrot by high-field strength (4.7-Tesla) magnetic resonance imaging (MRI). Excellent anatomic detail was achieved, and there was severe dilation of all ventricles. Relative obstruction was localized to the level of or beyond the outflow of the fourth ventricle. There have been several reports of hydrocephalus diagnosed postmortem in psittacines (i.e., hook-billed parrots), however, this is the first report of an antemortem diagnosis in a psittacine using high-field strength MRI. 相似文献
96.
The posterior sublingual gland of sea snakes is a salt gland. It secretes a fluid surpassing seawater in sodium chloride concentration. The gland lies on the ventrolateral surfaces of the tongue sheath and empties through multiple ducts into the sheath. Fluid is expelled from the sheath when the tongue is extended. For freshly captured Pelamis, the plasma concentrations of sodium, chloride, and potassium were 210, 167, and 8 millimoles per liter, respectively. Injections of sodium chloride led to a rise in its concentration in the plasma and to an increase in the rate and concentration of fluid secreted by the sublingual gland. The ultrastructure of this gland is similar to that of other reptilian salt glands. However, the gland is not homologous with any other salt gland. The sublingual gland in Pelamis is larger than that in Laticauda, and the rate of electrolyte excretion from the larger gland is greater. 相似文献
97.
Hematologic abnormalities preceding apparent recovery from feline leukemia virus infection 总被引:1,自引:0,他引:1
A 5-month-old domestic short-haired cat was referred to the Western College of Veterinary Medicine because of hemorrhage from the mouth. Neutropenia and bone marrow dyscrasia developed within 2 weeks, and results of a fluorescent antibody test for feline leukemia virus (FeLV) were positive. During the next 6 months, the feline oncornavirus cell membrane-associated antibody titer increased, the hematologic abnormalities regressed, and the cat became negative to the FeLV fluorescent antibody test (FeLV test). The results of 3 consecutive FeLV tests were negative, and the cat has been clinically normal for the past 18 months. 相似文献
98.
Samples of forty sewage sludges taken in England during 1979 were analysed for ten heavy metals using a rapid flameless atomic absorption spectroscopic technique. For all metals the mean concentrations were influenced by a small number of sludges containing exceptionally high concentrations. Typically, the concentration ranges showed approximately a 100-fold spread. Calculations based on U.K. guidelines for limiting the addition of toxic metals in sludge to agricultural soils indicated that application rates would theoretically be limited for more than 75 % of the sludges by the concentrations of Zn, Cu and Ni, expressed additively as the Zn equivalent. Calculations of the theoretical maximum quantities of sludges which could be applied to land on an annual basis suggested that a significant proportion of the sludges would be unsuitable for application to agricultural land at rates of more than 2 t ha?1 yr?1 相似文献
99.
100.
D. C. Griffiths K. A. Jeffs G. C. Scott R. Gair E. Lester F. E. Maskell J. H. Williams 《Pest management science》1972,3(5):609-618
When seeds of winter wheat were carefully dressed in the laboratory with combinations of fungicides (organomercury alone or organomercury plus the systemic fungicide carboxin) and insecticides (aldrin, carbophenothion or chlorfenvinphos as liquid formulations, or a γ-BHC powder formulation) so as to ensure that nearly all the recommended amounts of the active ingredients stuck to them, the insecticides gave good insect control, but γ-BHC with organomercury fungicide decreased the number of plants that germinated, and γ-BHC with carboxin and organomercury was even more damaging. Commercially dressed seeds had only about 30 to 60% of the target dose of fungicides, but more than 80% of the target doses of the liquid insecticides aldrin, carbophenothion and chlorfenvinphos. With combinations of powder fungicide and liquid insecticide, greater amounts of pesticide on the seed were obtained if the insecticide was put on first. Because of unusually late sowings and little fungal infestation, neither laboratory nor commercially treated seeds provided good tests for control of smut. 相似文献