The Northeastern region of Mexico has developed rapidly over the last few decades and reservoir construction has accompanied the growth of the region. As a result, recreational and sport fishing have become very popular. To regulate tournaments and to address growing exploitation concerns the Northeastern state of Nuevo Leon has begun to manage selected freshwater fisheries. Intensive management of warm water recreational species, however, does not have a long history in the region. This assessment was designed to evaluate the population structure and feeding habits of largemouth bass and channel catfish at a small rural fishery in Northeastern Mexico to get insight into mortality, growth, reproduction, and length related feeding patterns. Largemouth bass and channel catfish at La Juventud experience high mortality rates more than likely due to the selective removal of larger-older fish by angling. Extended spawning efforts at lower latitudes have also been implicated in accelerating the mortality of reproductively mature largemouth bass; however, studies regarding the onset, frequency, and duration of largemouth bass spawning in Northeastern Mexico are necessary to determine spawning seasonality and the adverse effects that extended reproduction efforts may have on growth potential. Largemouth bass grow fast during the first year of life and attain large sizes by age 1. Growth of young-of-year may benefit from an early onset of spawning and a long first-growing season, an abundant multi-species forage base of small fish, and frequent utilization of fish. Growth to age 3 and quality size (300 - 380-mm TL) is similar to that of populations from the Southeastern U.S.; however, the growth potential of individuals older than age 3 appeared limited by suitable sizes of prey. Channel catfish mean length-at-age values were similar to the mean of means for length-at-age-3 values of fish in Texas, and larger than the mean values from several regions in the Southern U.S.A. Largemouth bass at La Juventud may spawn early in the year (early spring or earlier than spring) and late in the year (fall). Spawning success; however, may be adversely affected by fluctuating water levels associated with an arid climate and undesirable interactions with other nest spawning species. Day-time gill net collections in 2006 and 2007 may have under sampled channel catfish. Gill net catches were low and variable; thus, interpretation of length, age, and weight data were constrained by small sample size.

In the northeastern Ionian Sea, two populations of dolphins, the short-beaked common dolphin and the common bottlenose dolphin, have been studied since 1993 by the Tethys Research Institute, Italy. Results show a low density of bottlenose dolphins, and a rapid decline in common dolphin numbers and encounter rates. I constructed an ecosystem model using Ecopath with Ecosim for the northeastern Ionian Sea to explain the two different abundance trends of these species of dolphins, and the trophic interactions with their prey and with the fisheries. The Ecopath model was built for the year 1964, adding data on biomass, P/B, Q/B and diet for each functional group of the ecosystem, fisheries landings and discards. Ecosim was used to generate simulated trajectories to fit with the ‘observed’ trends (e.g., biomass, CPUE and catches) for the most important groups of the ecosystem. The results of the fitting underline a clear decline of common dolphins caused by reduced prey availability. In particular, sardine and anchovy stocks, the main prey of common dolphins, have decreased sharply since the late 1970s due to intensive fishing pressure in the area until the end of 1990s. On the other hand, the population of bottlenose dolphins has increased through time; a positive correlation was observed between this species of dolphin and the development of the fish farm industry in the study area. Ecosim was used to simulate three fishing policy scenarios within the study area. Three different fishing closures were investigated: the closure of purse seiners; the closure of the industrial fisheries (purse seiners, trawlers and beach seiners); and the closure of the entire fishing fleets. According to Ecosim predictions, sardines and anchovies would benefit from all three management strategies. Common dolphins showed a significant increase only when the entire study area was closed to fishing. The creation of MPAs was explored using Ecospace. In particular, two different scenarios were evaluated: a MPA1 that closed the entire area to fisheries, and a MPA2 that allowed the small and big artisanal fisheries to operate. The results obtained using this spatial model agreed with similar scenarios simulated in Ecosim.

In the northeastern Ionian Sea, two populations of dolphins, the short-beaked common dolphin and the common bottlenose dolphin, have been studied since 1993 by the Tethys Research Institute, Italy. Results show a low density of bottlenose dolphins, and a rapid decline in common dolphin numbers and encounter rates. I constructed an ecosystem model using Ecopath with Ecosim for the northeastern Ionian Sea to explain the two different abundance trends of these species of dolphins, and the trophic interactions with their prey and with the fisheries. The Ecopath model was built for the year 1964, adding data on biomass, P/B, Q/B and diet for each functional group of the ecosystem, fisheries landings and discards. Ecosim was used to generate simulated trajectories to fit with the ‘observed’ trends (e.g., biomass, CPUE and catches) for the most important groups of the ecosystem. The results of the fitting underline a clear decline of common dolphins caused by reduced prey availability. In particular, sardine and anchovy stocks, the main prey of common dolphins, have decreased sharply since the late 1970s due to intensive fishing pressure in the area until the end of 1990s. On the other hand, the population of bottlenose dolphins has increased through time; a positive correlation was observed between this species of dolphin and the development of the fish farm industry in the study area. Ecosim was used to simulate three fishing policy scenarios within the study area. Three different fishing closures were investigated: the closure of purse seiners; the closure of the industrial fisheries (purse seiners, trawlers and beach seiners); and the closure of the entire fishing fleets. According to Ecosim predictions, sardines and anchovies would benefit from all three management strategies. Common dolphins showed a significant increase only when the entire study area was closed to fishing. The creation of MPAs was explored using Ecospace. In particular, two different scenarios were evaluated: a MPA1 that closed the entire area to fisheries, and a MPA2 that allowed the small and big artisanal fisheries to operate. The results obtained using this spatial model agreed with similar scenarios simulated in Ecosim.

Thesis (Ph.D.)--Tufts University, 2001. / Adviser: Barbara Freedman. Submitted to the Dept. of Drama. Includes bibliographical references (leaves 226-241). Access restricted to members of the Tufts University community. Also available via the World Wide Web;

Thesis (M.A.)--Chulalongkorn University, 1986. / In Thai; abstract also in English. Added t.p.: The economic change in the Upper Mun Basin, 1900-1925. Includes bibliographical references (leaves [233]-244). Also issued in print.

Thesis (M.A.)--Chulalongkorn University, 1986. / In Thai; abstract also in English. Added t.p.: The economic change in the Upper Mun Basin, 1900-1925. Includes bibliographical references (leaves [233]-244).

In the northeastern Ionian Sea, two populations of dolphins, the short-beaked common dolphin and the common bottlenose dolphin, have been studied since 1993 by the Tethys Research Institute, Italy. Results show a low density of bottlenose dolphins, and a rapid decline in common dolphin numbers and encounter rates. I constructed an ecosystem model using Ecopath with Ecosim for the northeastern Ionian Sea to explain the two different abundance trends of these species of dolphins, and the trophic interactions with their prey and with the fisheries. The Ecopath model was built for the year 1964, adding data on biomass, P/B, Q/B and diet for each functional group of the ecosystem, fisheries landings and discards. Ecosim was used to generate simulated trajectories to fit with the ‘observed’ trends (e.g., biomass, CPUE and catches) for the most important groups of the ecosystem. The results of the fitting underline a clear decline of common dolphins caused by reduced prey availability. In particular, sardine and anchovy stocks, the main prey of common dolphins, have decreased sharply since the late 1970s due to intensive fishing pressure in the area until the end of 1990s. On the other hand, the population of bottlenose dolphins has increased through time; a positive correlation was observed between this species of dolphin and the development of the fish farm industry in the study area. Ecosim was used to simulate three fishing policy scenarios within the study area. Three different fishing closures were investigated: the closure of purse seiners; the closure of the industrial fisheries (purse seiners, trawlers and beach seiners); and the closure of the entire fishing fleets. According to Ecosim predictions, sardines and anchovies would benefit from all three management strategies. Common dolphins showed a significant increase only when the entire study area was closed to fishing. The creation of MPAs was explored using Ecospace. In particular, two different scenarios were evaluated: a MPA1 that closed the entire area to fisheries, and a MPA2 that allowed the small and big artisanal fisheries to operate. The results obtained using this spatial model agreed with similar scenarios simulated in Ecosim. / Science, Faculty of / Zoology, Department of / Graduate

Regional growth literature indicates that the relations between the core and the peripheral regions, and the process by which growth is transmitted between regions are of prime importance in discussing growth disparities. Northeastern Ontario is a peripheral region, economically subordinate to the Ontario core region, and exhibits adverse growth conditions. Diversification of the region's resource dependent economy has been called for by many groups but has been hindered by the perception of higher manufacturing production costs. However, these costs have not been investigated. In this thesis, Northeastern Ontario centers' factor costs in manufacturing are compared with core centers' costs by utilizing a cost accounting method. The results indicate that some Northeastern locations may be cost attractive locations. However, low costs derived for Toronto would indicate continued manufacturing concentration in the principle centers of the core region. When costs are calculated for hypothetical firms, the importance of the factor requirement structure is indicated in determining location. Northeastern locations would be attractive to firms with large land, and low labour requirements. If future analyses verify these results, alternative explanations of the development problem of the Northeast should be explored. / Thesis / Master of Arts (MA)

Submitted by Filipe dos Santos (fsantos@pucsp.br) on 2016-09-14T18:14:51Z No. of bitstreams: 1 Raimunda Gomes da Silva.pdf: 2688919 bytes, checksum: 91ac9d88708c6341a30775a3b8e13813 (MD5) / Made available in DSpace on 2016-09-14T18:14:51Z (GMT). No. of bitstreams: 1 Raimunda Gomes da Silva.pdf: 2688919 bytes, checksum: 91ac9d88708c6341a30775a3b8e13813 (MD5) Previous issue date: 2016-04-01 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This thesis is made to ponder about the migratory experience of the Northeastern women who moved to the city of Boa Vista - Roraima State, between the years of 1985 and 2000. It questions the strains in their hometown or the referrals that contributed to their migration; what these women‟s characteristics are; to what extent the changes related to women‟s roles in the second half of the twentieth century, contributed to this process and to what extent gender issues favored the departure initiative; what kind of networking between the Northeast and the North regions were built; as well as the arrival and the insertion of them in the capital of Roraima. It also inquires about the meanings of migratory experience; and what changes marked these women‟s lives towards the challenges and possibilities in life in the far north of Amazônia. To this end, it took the oral history as its main source. A total of 16 themed interviews semi structured in the form of a flexible script were taken. Besides this source, it was used newspapers, local magazines, catalogues and many types of documents, including songs from the period being studied, in order to capture continuities and changes related to identity issues. It sought, finally, to question certain themes as the displacement, the daily life and the gender relations, looking at the history of these women as each of them drew their migratory experience and built its narrative in the midst of a plurality of roles and how, as a historical subject, each entered the picture played by contemporary challenges / Esta tese busca refletir sobre a experiência migratória de mulheres nordestinas que se deslocaram para a cidade de Boa Vista, Roraima, entre os anos de 1985 e 2000. Questiona as tensões no lugar de origem ou referência que contribuíram para as saídas; quais as características dessas mulheres; em que medida as mudanças relacionadas ao papel feminino, na segunda metade do século XX, colaboraram para esse processo e até que ponto as questões de gênero favoreceram a iniciativa da partida; que tipos de rede se constituíram entre o Nordeste e o Norte; bem como a chegada e inserção na capital roraimense. Também indaga sobre os significados da experiência migratória; e quais mudanças marcaram a vida dessas mulheres diante dos desafios e possibilidades da vida no extremo norte da Amazônia. Para tanto, toma como principal fonte a história oral. Realizou-se um total de 16 entrevistas temáticas semiestruturadas em forma de roteiro flexível. Além dessa fonte, também são utilizados jornais, periódicos locais, catálogos e uma documentação variada, incluindo músicas da época estudada, no sentido de captar permanências e mudanças relacionadas às questões de identidade. Busca, por fim, questionar certas temáticas como o deslocamento, o cotidiano e as relações de gênero, procurando na história dessas mulheres como cada uma desenhou suas experiências migratórias e construiu sua narrativa em meio a uma pluralidade de papéis e como, enquanto sujeito histórico, cada uma entrou em cena tocada pelos desafios contemporâneos

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