3,957 research outputs found
THE INCI FRAMEWORK AND INTERCEPTION THERAPY PROTOCOLS
No full textTHE INCI FRAMEWORK AND INTERCEPTION THERAPY PROTOCOLS
AUTHOR: SARAH M. FISH, NAS (Neuro-Adaptive Specialist)
DATE: JANUARY 202
fish and fishery products microbiology bacteria causing fish spoilage
No full textThis material describe bacteria which causing spoilage in fish and seafood products
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Analysis of Ichthyomechanical Data for Fish Passage or Exclusion System Design
No full textFish speed and stamina, locomotion, and the mechanics of fish swimming, are key to the development and design of passage, exclusion, and guidance systems such as fishways (including culverts), fish screens, fish barriers (including sea lamprey velocity barriers), and fish louvers. The large amount of data available, although primarily from laboratory respirometer studies and unevenly distributed between species, offered an opportunity to consider its systematic application to the development, design, and testing of such devices. With this motive, comprehensive searches were made and literature on fish swimming performance tests was compiled, and published data were entered on spreadsheets. This data base includes the following information: scientific and common fish species name, swimming mode, fish length (l in m), swimming speed (U in m/s), endurance or time to fatigue (t in s), water temperature during testing, life stage (e.g. juvenile or adult), test method (e.g. constant or increasing velocity), number of fish tested, regressions of swimming speed versus fish length for specific endurance times as reported in the literature, publication reference (author and date), and relevant comments (Katopodis and Gervais 1991). The data base may be consulted for information on specific species, although many species either have very limited data or are not represented at all. The data base, which is available on request, is presently been revised and updated. Investigators with additional data which do not appear in primary publications, are encouraged to provide it for inclusion
A critical analysis of the plays of Sarah Daniels.
No full textAs one of the forerunners of 'second wave' feminist playwriting, Sarah Daniels has for the
past fifteen years been one of Britain's most prolific writers for the stage. This thesis is the
first to offer a detailed critical analysis of all her published plays along with a developmental
account of her career. My approach throughout is text-based and non-prescriptive,
although I do at certain points indicate where Daniels reflects or voices differing feminist
perspectives. I also consider, beginning in Chapter Three, the critical reception and
'gendered' reviewing the playwright has received over the years.
The thesis is organised into five chapters with an Afterword. Chapter One, the
Introduction, offers an overview of Daniels' career as well as certain key characteristics of
her work. In Chapter Two I analyse the early plays, Ripen Our Darkness, The Devil's
Gateway and Neaptide, and consider in particular how they reflect, along with other
women's playwriting at the time, certain ideals of the Women's Liberation Movement.
Chapter Three is devoted entirely to Masterpieces, Daniels' most controversial and, on
many levels, successful play to date. Chapter Four is an analysis of the 'history plays',
Byrthrite and The Gut Girls. In addition to giving voice to women traditionally silenced in
and by history, these plays (especially Byrthrite) also echo particular strands of modern
feminist debate. Chapter Five examines Daniels' plays of the 1990s (Beside Herself, Head-
Rot Holiday and The Madness of Esme and Shaz) with their central theme of 'women and
madness'. This is also a fitting theme with which to conclude the thesis as it brings together
and expands on the most significant motif running throughout the playwright's work. In the
Afterword I consider the effect of Esme and Shaz's critical reception on Daniels, as well as
her current 'work in progress'. Finally, the two Appendices provide a chronological table of
Daniels' productions and a list of subsequent professional productions as well as awards
Pest or pastime? Coarse fish in Aotearoa/New Zealand
No full textFreshwater ecosystems are extremely important, both socially and ecologically, in Aotearoa/New Zealand. However, through detrimental practices of land-use change and the introduction of non-indigenous aquatic species, the health of freshwater areas is increasingly under threat. Coarse fish are one group of non indigenous fish that are largely perceived to have a negative effect on freshwater biodiversity and water quality. Despite this, there are people in New Zealand that value coarse fish highly, and consider their lives to be enriched through the practice of coarse angling.
This thesis examines the diversity of perceptions and values ascribed to coarse fish by a variety of different environmental managers and resource users to understand how these multiple meanings influence approaches to freshwater biodiversity management in Aotearoa/New Zealand. As coarse anglers are often considered responsible for deliberate translocation of coarse fish, a space for communication and compromise between these stakeholder groups is also identified. Additionally, appropriate and effective educational methods to raise awareness of freshwater ecosystem restoration and non-indigenous invasive fish are discussed.
Social factors are often the primary determinants of whether conservation efforts succeed or fail. Grounded in the theoretical perspectives of social construction, environmental perception, political ecology, and critical environmental adult education, this thesis provides an important contribution to the practice of interdisciplinary research by demonstrating the ways in which social science complements scientific approaches to environmental management. Utilising semi structured interviews with multiple stakeholder groups and an internet survey targeted at coarse anglers this research found that, while a multitude of perceptions of coarse fish exist, there is also willingness on both sides to engage in communication and develop effective practices to aid in managing the freshwater environment. A number of suggestions for improving legislation that addresses invasive freshwater fish, and several ideas regarding education and compliance, also emerged
Consumer Interest and Marketing Potential of Information on Fish Labels
No full textFood labels are an important source of information to consumers. However, little scientific evidence is available on the type of information consumers seek on product labels and how consumers use food labels. The objective of this study is to assess consumers’ use of mandatory information cues and interest in potential information cues placed on fish labels, packages or shelves in five European countries. A cross-sectional consumer survey was carried out in November-December 2004 in five European countries: Belgium, Denmark, the Netherlands, Poland and Spain and a sample representative for age and region within each country has been obtained. Total sample size is 4,786. The results show a high use of on-label information cues; hence, labels were found as good, and potentially market effective sources of information. Consumers were most familiar with expiry date, price, species name and weight and they felt able to derive clear quality expectations from the information these cues convey. Consumers displayed the strongest interest in an additional information cues, such as safety guarantee and a quality mark for seafood. Cross-country differences in both use and interest in fish information cues were observed.consumer, fish, label, Consumer/Household Economics, Marketing,
DATA & CODE for "Substrate-dependent fish have shifted less in distribution under climate change"
No full textAuthors: Sarah M. Roberts*1, Andre M. Boustany2, Patrick N. Halpin1
Author affiliations:
*1Marine Geospatial Ecology Lab, Nicholas School of the Environment and Earth Sciences, Duke University, Durham, NC 27708, US
2 Monterey Bay Aquarium, 886 Cannery Row, Monterey, CA 93940, USA
This dataset and code run the necessary methods for the manuscript titled: "Substrate-dependent fish have shifted less in distribution under climate change. Substrate-dependent fish have shifted less in distribution under climate change" published in Nature Communications Biology. In order to run the code, you need to request data from https://oceanadapt.rutgers.edu/. The download is free, I just don't have permission to publish their data. Software needed is Rstudio and R. This is the updated and current version
Scaling of oxygen consumption of Lake Magadi tilapia, a fish living at 37 degree C
No full textRates of oxygen consumption were measured in the geothermal, hot spring fish, Oreochromis alcalicus grahami by stopped flow respirometry. At 37 degree C, routine oxygen, consumption followed the allometric relationship: Vo sub(2)=0.738 M super(0.75), where Vo sub(2) is ml O sub(2)/h and M is body mass (g). This represents a routine metabolic rate for a 10 g fish at 37 degree C of 0.415 ml O sub(2)/g/h (16.4 mu mol O sub(2)/g/h). Acutely increasing the temperature from 37 to 42 degree C significantly elevated the rate of O sub(2) consumption from 0.739 to 0.970 ml O sub(2)/g/h (Q sub(10)=1.72). In the field, O. a. grahami was observed to be 'gulping' air from the surface of the water especially in hot springs that exceeded 40 degree C, O. a. grahami may utilize aerial respiration when O sub(2) requirements are high.TR: CS9609969Source type: Electronic(1
Fish consumption, does it beneficially affect markers of colorectal carcinogenesis?
No full textBackground: Fish consumption is possibly associated with a decreased risk of colorectal cancer, as has been shown in several observational studies. However, most of these studies did not discriminate between the effects of oil-rich and lean fish. To date, no randomized controlled trials (RCTs) have examined the possible beneficial effects of fish intake on colorectal cancer risk. Aim: The aim of this thesis was to investigate whether fish consumption beneficially affects markers of colorectal carcinogenesis. Methods and Results: In a case control study (363 cases, 498 controls), we studied the association of serum n 3 polyunsaturated fatty acid (PUFA) levels as a marker of oil rich fish intake with colorectal adenomas, a precursor lesion of colorectal cancer. We found that individuals with high serum long chain n 3 PUFA levels had a decreased risk of colorectal adenomas (odds ratio (OR) 0.67, 95% confidence interval (CI) 0.46; 0.96), whereas individuals with high serum n 6 PUFA levels had an increased risk of colorectal adenomas (OR 1.68, 95% CI 1.17; 2.42). In an RCT, we studied the effects of 3.5g/d fish oil (~1.5g/d n 3 PUFA) for 12 weeks on 19 serum inflammation markers in 77 healthy subjects and found that serum levels of these cytokines and chemokines were not changed. Finally, we studied the effects of increasing fish consumption compared with no additional fish, on markers of colorectal carcinogenesis in an RCT. Subjects (n=242), at an increased risk of colorectal cancer and those with no macroscopic signs of disease, were randomly allocated to receive dietary advice (DA) plus either two additional weekly portions of oil rich fish (salmon, ~1.4g/d n 3 PUFA) or lean fish (cod, ~0.09 g/d n 3 PUFA), or only DA for six months. We observed no change in apoptotic and mitotic cell numbers after the 6 months intervention with either salmon or cod compared with DA. Furthermore, colorectal genotoxicity, levels of cytokines and chemokines in colonic biopsies and feces, and fecal calprotectin were also not markedly changed after fish consumption. Only serum C reactive protein (CRP) levels were statistically significantly decreased after consumption of salmon ( 0.5 mg/l, 95% CI 0.9; 0.2) and cod ( 0.4 mg/l, 95% CI 0.7; 0.0) compared with DA. Conclusion: The results of this thesis do not provide strong evidence for beneficial effects of fish consumption on markers of colorectal carcinogenesis. <br/
Distinct migratory and non-migratory ecotypes of an endemic New Zealand eleotrid (Gobiomorphus cotidianus) – implications for incipient speciation in island freshwater fish species
No full textBackground: Many postglacial lakes contain fish species with distinct ecomorphs. Similar evolutionary scenarios might be acting on evolutionarily young fish communities in lakes of remote islands. One process that drives diversification in island freshwater fish species is the colonization of depauperate freshwater environments by diadromous (migratory) taxa, which secondarily lose their migratory behaviour. The loss of migration limits dispersal and gene flow between distant populations, and, therefore, is expected to facilitate local morphological and genetic differentiation. To date, most studies have focused on interspecific relationships among migratory species and their non-migratory sister taxa. We hypothesize that the loss of migration facilitates intraspecific morphological, behavioural, and genetic differentiation between migratory and non-migratory populations of facultatively diadromous taxa, and, hence, incipient speciation of island freshwater fish species.
Results: Microchemical analyses of otolith isotopes (Sr-88, Ba-137 and Ca-43) differentiated migratory and non-migratory stocks of the New Zealand endemic Gobiomorphus cotidianus McDowall (Eleotridae). Samples were taken from two rivers, one lake and two geographically-separated outgroup locations. Meristic analyses of oculoscapular lateral line canals documented a gradual reduction of these structures in the non-migratory populations. Amplified fragment length polymorphism (AFLP) fingerprints revealed considerable genetic isolation between migratory and non-migratory populations. Temporal differences in reproductive timing (migratory = winter spawners, non-migratory = summer spawners; as inferred from gonadosomatic indices) provide a prezygotic reproductive isolation mechanism between the two ecotypes.
Conclusion: This study provides a holistic look at the role of diadromy in incipient speciation of island freshwater fish species. All four analytical approaches (otolith microchemistry, morphology, spawning timing, population genetics) yield congruent results, and provide clear and independent evidence for the existence of distinct migratory and non-migratory ecotypes within a river in a geographically confined range. The morphological changes within the non-migratory populations parallel interspecific patterns observed in all non-migratory New Zealand endemic Gobiomorphus species and other derived gobiid taxa, a pattern suggesting parallel evolution. This study indicates, for the first time, that distinct ecotypes of island freshwater fish species may be formed as a consequence of loss of migration and subsequent diversification. Therefore, if reproductive isolation persists, these processes may provide a mechanism to facilitate speciation
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