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Showing 1 to 20 of 28 for “"Anguilla"”.
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Helminth, protozoan and viral infections of the European eel, Anguilla anguilla
The European eel, Anguilla anguilla, is an important catadromous fish that has beenclassified as critically endangered due to severe population decline. The reasons for this arenot fully understood; however, infectious disease undoubtedly makes a contribution. To explorethis further, a total of 509 …
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Helminth infections of the European eel Anguilla Anguilla in the United Kingdom
The European eel, Anguilla anguilla, is designated a threatened species and parasites are considered to be one of the contributory factors associated with the species decline. To address the lack of knowledge concerning parasite infections in the UK European eel population, a total of 140 specimens …
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BIO-ECOLOGICAL AND ANATOMICAL ASPECTS OF THE EUROPEAN EEL ANGUILLA ANGUILLA (L. 1758)
… iconic catadromous species, the European eel Anguilla anguilla (L.) has aroused considerable interest since ancient times, though, to date, many aspects of its life cycle remain relatively unknown. A. anguilla showed a progressively decline since the 1970s. Starting from 2007, has been …
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Análisis del comportamiento de la anguila (Anguilla anguilla L.) en proceso de aclimatación y engorde
… el análisis del comportamiento de la anguila (Anguilla anguilla L.) en procesos de aclimatación y engorde artificial en piscifactorías. En primer lugar se plantea, a nivel de introducción, el estado actual del mundo de la pesca. Se expone la crítica situación de sobreexplotación de especies y …
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Selection of benthic habitat by yellow-phase American eels (Anguilla rostrata)
… preference of yellow-phase American eels (Anguilla rostrata) and relationships between age and length with that preference. The thesis is comprised of two chapters: (1) an introduction and literature review on American eel life history, their habitat selection, and the study of resource …
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Embryotoxicity of dioxin-like chemicals extracted from American eels (Anguilla rostrata) from the St. Lawrence River System
The American eel (Anguilla rostrata) has suffered a serious population decline in Lake Ontario since the early 1980s due to a decline in recruitment of juveniles migrating from the Sargasso Sea. This has resulted in the closure of the Lake Ontario fishery in 2004 and its listing as endangered under …
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Suspect Wealth – A Risk to Stability, Development and Sustainability: The case of Bermuda, the Turks and Caicos Islands, and Anguilla
… Bermuda, the Turks and Caicos Islands, and Anguilla. Through secondary research into their legal, regulatory and compliance regimes, it sets out to answer three main questions: How viable are international standards on suspect wealth in the context of these three jurisdictions? How willing …
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Tolérance et réponse physiologique des civelles pigmentées de l'anguille d'amérique (anguilla rostrata) Face à l'hypoxie en eau douce
… et culturelle, l’anguille d’Amérique (Anguilla rostrata) est une espèce menacée et en déclin qui fait face à de nombreux éléments stressants environnementaux lors de son cycle de vie long et complexe. Cette thèse examine la réponse physiologique des civelles de l’anguille d’Amérique à …
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The response of eel, lamprey and brown trout to conditions associated with barriers to up- and downstream movement under experimental conditions in a flume
… and downstream migrating European eel, Anguilla anguilla, and brown trout, Salmo trutta. The use of a large open-channel flume allowed control of the motivational state of, and stimuli encountered by the fish. The fish responses to a variety of model weirs and screens placed in the flume …
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Ecological consequences of non-native parasites for native UK fishes.
… and Anguillicoides crassus and the European eel Anguilla anguilla. These parasites were chosen as they reflect a range of life cycle complexity in parasites. The pathology of each parasite was identified using histology, with E. briani having substantial effects on host gill structure, B. …
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Diencephalic asymmetries: morphological, immunohistochemical and ultrastructural analysis of habenular nuclei in elasmobranchs and teleosts
… while in the other species (like Liza aurata, Anguilla anguilla, Trisopterus minutus) the habenulae are symmetrical. However, various aspects of the neuroanatomical asymmetries of the epithalamus have not been deepened in order to obtain a complete picture of the evolution of this phenomenon, …
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Assessment of local abundance, demographics, health and exploitation of Chesapeake Bay American eel
… the largest U.S. harvest of American eel <italic>Anguilla rostrata</italic>, yet little is known about the underlying production rates sustaining harvests. Demographic attributes were compared between six sub-estuaries and with an unexploited population in the Hudson River. A mark-recapture …
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"The man that says slaves be quite happy in slavery...is either ignorant or a lying person..." an account of slavery in the marginal colonies of the British West Indies.
… in each of the Bahamas, the Caymans, Belize, Anguilla, and Barbuda during the last half century or so of formal slavery in the British Caribbean impacted upon the life and labour experiences of bondsmen and women in these territories. More specifically, the study attempts to define the …
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Tissue enzyme changes in air-exposed American eels.
American eels (Anguilla rostrata) are known to leave the water for excursions onto land despite lacking specialized air breathing organs. Other studies have established that the eel suffers from acidosis and hypoxemia as a result of this air exposure, but the survival of the eels despite these …
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Freshwater fish in the Waikato region : an evaluation of novel standardised data and drivers of fish distribution and abundance : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Science in Ecology at Massey University Manawatū, New Zealand
… investigated in further detail: longfin eels (Anguilla dieffenbachii); shortfin eels (Anguilla australis); and redfin bullies (Gobiomorphus huttoni). Abundance and distribution predictions were mapped throughout the Waikato region River Environment Classification (REC) waterways for these three …
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American Eel Subpopulation Characteristics in the Potomac River Drainage, Virginia
The demographic characteristics of American eels (Anguilla rostrata) are believed to vary with latitude and distance inland from the ocean; eels are generally thought to increase in length, age, and the proportion of females in inland and more northerly areas. Understanding this variation is …
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Smallmouth bass mortality during parental care: implications for year-class strength
… absence of parental males, but American eels (Anguilla rostrata) were common nocturnal predators of larval and juvenile (14-20 mm SL) offspring and contributed to brood losses prior to swim-up. Brood mortality information (1994) and annual data (1992-94) on nest success, swim-up larvae …
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Involvement of Cytochrome P450 1A in the toxicity of aryl hydrocarbon receptor agonists : alteration arachidonic acid metabolism and production of reactive oxygen species
… in endothelial cells of the American eel (Anguilla rostrata), a site which may be particularly susceptible to alterations in AA metabolism and ROS production, was described. Eel liver CYP1A responded to BP, 13-naphthoflavone and TCB in a dose-dependent fashion, and induction was correlated …
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