The Consumption of Lionfish as a Control of an Invasive Species in Bermuda

This research focuses on how lionfish are affecting the waters of the Caribbean Sea and western Atlantic Ocean, and the practices in place to control the lionfish invasion. The presence of lionfish in these areas is a significant problem because of the detrimental effect they have on coral reef ecosystems. Countries in the Atlantic that are directly dependent on underwater ecosystems for their economy, and the global underwater environment in general, are at risk. My research aimed to determine if consuming lionfish can be a viable way of reducing lionfish in Bermuda. I approached this question by surveying three categories of people in Bermuda: commercial fishermen, professional chefs, and members of the general public. There is a significant group of the population able to catch lionfish as well as a signification portion of chefs willing to learn how to prepare and serve lionfish. In order to establish a sustainable lionfish fishery, there needs to be modifications to fishing laws as well as efforts that encourage the sale of lionfish in restaurants

The comparative osmoregulatory ability of two water beetle genera whose species span the fresh-hypersaline gradient in inland waters (Coleoptera: Dytiscidae, Hydrophilidae).

A better knowledge of the physiological basis of salinity tolerance is essential to understanding the ecology and evolutionary history of organisms that have colonized inland saline waters. Coleoptera are amongst the most diverse macroinvertebrates in inland waters, including saline habitats; however, the osmoregulatory strategies they employ to deal with osmotic stress remain unexplored. Survival and haemolymph osmotic concentration at different salinities were examined in adults of eight aquatic beetle species which inhabit different parts of the fresh-hypersaline gradient. Studied species belong to two unrelated genera which have invaded saline waters independently from freshwater ancestors; Nebrioporus (Dytiscidae) and Enochrus (Hydrophilidae). Their osmoregulatory strategy (osmoconformity or osmoregulation) was identified and osmotic capacity (the osmotic gradient between the animal's haemolymph and the external medium) was compared between species pairs co-habiting similar salinities in nature. We show that osmoregulatory capacity, rather than osmoconformity, has evolved independently in these different lineages. All species hyperegulated their haemolymph osmotic concentration in diluted waters; those living in fresh or low-salinity waters were unable to hyporegulate and survive in hyperosmotic media (> 340 mosmol kg(-1)). In contrast, the species which inhabit the hypo-hypersaline habitats were effective hyporegulators, maintaining their haemolymph osmolality within narrow limits (ca. 300 mosmol kg(-1)) across a wide range of external concentrations. The hypersaline species N. ceresyi and E. jesusarribasi tolerated conductivities up to 140 and 180 mS cm(-1), respectively, and maintained osmotic gradients over 3500 mosmol kg(-1), comparable to those of the most effective insect osmoregulators known to date. Syntopic species of both genera showed similar osmotic capacities and in general, osmotic responses correlated well with upper salinity levels occupied by individual species in nature. Therefore, osmoregulatory capacity may mediate habitat segregation amongst congeners across the salinity gradient

Alien Registration- Alaire, Marie (Sanford, York County)

https://digitalmaine.com/alien_docs/2911/thumbnail.jp

Alien Registration- Alaire, Marie (Sanford, York County)

https://digitalmaine.com/alien_docs/2911/thumbnail.jp

Photographic interconnections : how students view their school environment

This research aimed to understand the relationships seven secondary students perceived themselves to have with the physical and social features of their school environment. An ecological approach was used to study the reciprocal relationships between students and their school. Cameras were put in the hands of seven secondary students enrolled in a photography course at their school. They were given a roll of 24-exposure black and white film and asked to photograph the physical and social features that represented their interconnections with their school environment. To record their perspectives, each student selected their two best pictures and wrote a descriptive narrative for each. Interviews focused around their photographs to further enhance their meanings for the researcher. The majority of the students photographed physical features that they used as metaphors to represent their interconnections with their school environment. Their narratives either supported or rejected the way specific physical features looked and communicated social or political statements about the benefits or limitations of the school environment. The results clearly indicate that, from the students' perspectives, the physical environment of their school shapes the social and political aspects of their educational experience. Each student's photo-story about their relationship with their school environment is valuable information for educators to consider. Listening to what the students deem to be important and taking their ideas into consideration could promote constructive changes needed within so many school environments.Education, Faculty ofCurriculum and Pedagogy (EDCP), Department ofGraduat

Avaliação do desempenho de suínos na fase de maternidade em granja comercial no município de Paragominas-PA

<p>Objetivou-se com este trabalho avaliar os efeitos da ordem de parto, classe de peso dos leitões ao nascimento e sexo sobre o desempenho dos animais nas diferentes fases de criação. O experimento foi conduzido na Granja comercial, localizada na Rodovia PA-125 no município de Paragominas-PA. Foram selecionadas um total de nove matrizes suínas (Camborough 25), inseminadas por machos semelhantes (AGPIC 337), sendo três matrizes primíparas (1° Parto), três secundíparas (2º parto) e três multíparas (3º ordem de parto ou superior). O experimento foi conduzido em um delineamento inteiramente casualizado, sendo utilizados como tratamento as ordens de parto das matrizes, sexo dos leitões e classificação de peso dos leitões ao nascimento (0,00 - 1,00 Kg classificados como leve, 1,01 - 1,600 Kg classificado como médio, e igual ou acima de 1,601 Kg, classificado como pesado). Após o parto os leitões foram alojados em conjunto com sua respectiva matriz, sendo cada leitão considerado uma unidade experimental. As variáveis analisadas para todas as fases referentes aos leitões foram: ganho de peso diário, peso vivo e mortalidade. Os leitões foram identificados logo após o parto através de brincos, sendo posteriormente pesados. Foram realizadas pesagens dos animais a cada 7 dias durante a fase de maternidade. Os dados foram analisados estatisticamente pelo software SAS, sendo realizada a ANOVA com P<0,05 e em caso de diferença estatística as médias foram comparadas pelo teste de Tukey com P<0,05. O peso ao nascimento influenciou significativamente no peso da próxima fase de criação. A ordem de parto influenciou significativamente o peso ao nascimento dos leitões.</p

Ideological influences on governance and regulation: The comparative case of supreme courts

A key influence on governance and regulation is the ideology of individual decisionmakers. However, certain branches of government – such as courts – while wielding wide ranging regulatory powers, are expected to do so with no attitudinal influence. We posit a dynamic response model to investigate attitudinal behavior in different national courts. Our ideological scores are estimated based on probability models that formalize the assumption that judicial decisions consist of ideological, strategic, and jurisprudential components. The Dynamic Comparative Attitudinal Measure estimates the attitudinal decisionmaking on the institution as a whole. Additionally, we estimate Ideological Ideal Point Preference for individual justices. Empirical results with original data for political and religious rights rulings in the Supreme Courts of the United States, Canada, India, the Philippines, and Israel corroborate the measures’ validity. Future studies can utilize Ideological Ideal Point Preference and the Dynamic Comparative Attitudinal Measure to cover additional courts, legal spheres, and time frames, and to estimate government deference.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/145572/1/rego12145_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/145572/2/rego12145.pd