Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 124 for “"herring"”.
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Hyperspectral Imaging for Evaluation of Herring Stocks caught around Iceland
The correct identification of herring stocks is significant for the sustainable fisheries management and the maintenance of the ecosystem balance in Icelandic waters. Norwegian spring-spawning herring (NSSH) and Icelandic summer-spawning herring (ISSH) are morphological alike and share common …
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Habitat relationships for alewives and blueback herring in a Virginia stream
… alewife (Alosa pseudoharengus) and blueback herring (Alosa aestivalis) in the Rappahannock River drainage were identified. Trends in fish use of 72 tributaries were determined by consulting eighty-eight people from the Rappahannock River area through a questionnaire. These streams were each …
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The Relative Contribution of Hudson River Tributaries to River Herring Spawning Dynamics
… New York) to obtain spawning river herring egg counts for abundance modeling and subsequent population estimation. Geographic coordinates (NAD 1983 UTM Zone 18N) were recorded at sites of egg collection, and kernel density based functions in GIS were used to visualize the spatial …
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The Effects of Diet and Predation on Nesting Herring Gulls (Larus argentatus) in Pukaskwa National Park
Herring gulls (Larus argentatus) are used as ecological indicators of the coastal Lake Superior ecosystem in Pukaskwa National Park. Their populations have declined by 70% over the last 40 years, suggesting changes in the park ecosystem. I assessed herring gull diets and investigated how diet may …
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Population structure of Atlantic herring, Clupea harengus L., in the northeast Atlantic using phenotypic and molecular approaches
… attempts to study the population structure of herring (Clupea harengus L.) have been limited by the low levels of genetic differentiation observed among discrete spawning aggregations over large geographic scales. Thus, the population genetic structure of Atlantic herring remains undefined. …
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Multi-scale Assessment of Bone Mechanics and the Mineral Phase of Intramuscular Bone of Atlantic Herring Fish
… a model of intramuscular bone of the Atlantic herring fish, which present a simple structure, and no process of remodeling.</p> <p>A multi-scale approach was developed to measure mechanical properties, mineral composition, mineral maturity or stoichiometric perfection, and distribution based on …
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Effects of Herring Gulls and Great Black-backed Gulls on Breeding Piping Plovers, South Monomoy Island, Massachusetts
The large population of breeding Herring Gulls and Great Black-backed Gulls on South Monomoy Island, Cape Cod, Massachusetts has been thought to negatively affect the breeding success of the threatened Piping Plover. Following the Piping Plover Recovery Plan s call for gull colonies to be removed …
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Comparing the coarse- and high-resolution horizontal and vertical egg distribution patterns of three clupeiform species in the southern Benguela ecosystem
… encrasicolus, sardine Sardinops sagax and round herring Etrumeus whiteheadi, co-exist over the western Agulhas Bank (W AB) in the southern Benguela upwelling ecosystem. To date, data on high-resolution distributions in ichthyoplankton in the region is lacking. To address this need, coarse and …
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Somatic condition, growth and distribution of Atlantic bluefin tuna (Thunnus thynnus) in the Gulf of Maine
… changes in the somatic condition of Atlantic herring, increases in the landings of the commercial herring fleet and changes in Atlantic herring gonad size were also identified. New growth parameters were estimated for Atlantic bluefin tuna sampled in the western Atlantic and these are …
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Foraging habits, population changes, and gull-human interactions in an urban population of Herring Gulls (Larus argentatus) and Lesser Black-backed Gulls (Larus fuscus)
… in urban areas. The main urban colonists are Herring gulls (HG; Larus argentatus) and Lesser Black-backed gulls (LB; Larus fuscus). In some urban areas, they are considered a nuisance, although overall gull numbers are declining, and all breeding gulls in Britain are protected by law. …
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Investigating group behavioral quantization of oceanic fish with Continental-shelf scale ocean-acoustic sensing
… spawning is also investigated for the Atlantic herring species. We find that the daily herring spawning group population is stable over the peak annual spawning period from wide-area acoustic measurements of spawning herring in the Gulf of Maine in Fall 2006. This supports the quantum concept …
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The role of stored fish in England 900-1750AD; the evidence from historical and archaeological data
… and archaeological data for the consumption of herring and the gadid fishes (primarily cod, haddock, whiting, ling and hake) as stored fish cured by salting, drying and smoking. The thesis is divided into three parts, in the first part the historical evidence for developing fisheries, storage …
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The dynamics of an ultrasonic cavitation bubble
… namely, the Noltingk-Neppiras model, the Herring- Flynn model, and the Kirkwood-Bethe model. These approximate models are presently the only tools employed in the mathematical analysis of the dynamics of the ultrasonic cavitation bubble. However, the solutions of these models indicate that …
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Master thesis recital (voice)
Albert Herring / Benjamin Britten
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Can port state measures taken against RMFO partners be reconciled with international trade law? a critical analysis of the EU shared stocks regulation in light of the herring dispute
… the management of, inter alia, Atlanto-Scandian herring. NEAFC parties have a long-term management plan in place for Atlanto-Scandian herring. Based on recommendations from the International Council for the Exploration of Seas (ICES) the parties set a total allowable catch (TAC) for the herring …
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Developing dynamic energy budget (DEB) models for small pelagic fishes in the Southern Benguela
… Anchovy (Engraulis encrasicolus), redeye round herring (Etrumeus whiteheadi) and sardine (Sardinops sagax) are short-lived fish species co-occurring in the Southern Benguela upwelling system, where they experience marked environmental variability. This study developed full life cycle dynamic …
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