Sarcoma de aplicação de medicamentos injetáveis em felinos : relato de caso

Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, 2019.O Sarcoma de aplicação em felinos foi inicialmente relatado na década de 90 nos EUA e foi associado a vacinação, pois a neoformação se desenvolvia em lugares comumente usados para a aplicação das vacinas contra a raiva e contra a FeLV. Posteriormente constatou-se que a inflamação observada no local também decorria após à aplicação de outros medicamentos injetáveis por via subcutânea ou intramuscular. O fibrossarcoma é um neoplasma pertencente a classe de sarcomas de tecidos moles, comumente observados nos felinos. O diagnóstico definitivo é dado pela histopatologia que identificará o tipo de sarcoma, o grau de malignidade, a presença ou não de invasão hemolinfática, além de auxiliar na avaliação das margens cirúrgicas. Os melhores prognósticos foram alcançados em gatos que foram submetidos a excisão cirúrgica com margens amplas associado a terapias múltiplas, que incluem a cirurgia, radioterapia e a quimioterapia. Este relato de caso aborda o tratamento cirúrgico radical, por meio de técnicas cirúrgicas reconstrutivas, combinadas a terapia de eletroquimioterapia, realizados em um paciente felino com sarcoma redicivante.Feline Application Sarcoma was initially reported in the 90 decade in the USA and was associated with vaccination, because neoformation was developed in places commonly used for the application of rabies vaccines and against FeLV. Subsequently, it was found that the inflammation observed at the site would also be due to the application of other injectable medicinal products via subcutaneous or intramuscular use. Fibrosarcoma is a neoplasm belonging to the class of soft tissue sarcomas, commonly observed in cats. The definitive diagnosis is given by the histopathology that will identify the type of sarcoma, the degree of malignancy, the presence or absence of hemolymphomatic invasion, besides assisting in the evaluation of surgical margins. The best prognosis was achieved in cats that underwent surgical excision with broad margins associated with multiple therapies, which include surgery, radiotherapy and chemotherapy. This case report discusses the radical surgical treatment, by means of reconstructive surgical techniques, combined with electrochemotherapy therapy, performed in a feline patient with redicivant sarcoma

Species composition, distribution, and zonation patterns in the intertidal seaweed assemblages from Santo Antão, Cape Verde

Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG[Abstract] Intertidal communities have been extensively studied for decades. Many of these studies have focused on macroalgae, as they are key components of many rocky coastal ecosystems. Despite this, there are still regions of the world where there is a lack of knowledge of intertidal macroalgal communities. This is the case in some tropical regions, such as the Cape Verde archipelago, located on the tropical west coast of Africa. To contribute to the knowledge of the macroalgal communities of this region, during July 2022, we studied the distributional pattern and zonation of macroalgal communities along the rocky intertidal of Santo Antão Island, the northernmost island of the archipelago and the least studied. Using a nested design, we compared the macroalgal assemblages of six rocky shores along the entire coastline, including three sites per shore, and four quadrats per site and tidal level. We found 43 macroalgal species – 29 Rhodophyta, 12 Ochrophyta, 2 Chlorophyta – and one Cyanobacteria. The orders Ceramiales, Corallinales, and Gigartinales were the groups more represented, followed by Ectocarpales and Dictyotales. The upper intertidal was dominated by brown algae, while red algae dominated the middle intertidal. Green algae had a scarce presence in both tidal levels. Our results found no differences between the north and south of the island but between rocky shores and tidal levels. Our results provide for the first time comprehensive information on the seaweed community structure, zonation patterns, and a comparison of seaweed abundances in a vertical and horizontal gradient along the entire rocky shores of Santo Antão Island. In the face of the current climate change, our data can be the baseline for future work on algal communities in this región.Xunta de Galicia; ED481B-2021/095This research was funded by Fundação para a Ciência e a Tecnologia (FCT), Portugal (DivRestore/0006/2020) through the 2020–2021 Biodiversa and Water JPI joint call for research projects, under the BiodivRestore ERA-NET Co-fund, Portugal (GA N◦101003777). MD was supported by a CEEC contract (CEECINST/00027/2021) funded by FCT, Portugal, and MD, FA, and CV were partly funded by UIDB/04423/2020 and UIDP/04423/2020, all through Portuguese national funds, Portugal. CP-C received financial support from Xunta de Galicia ‘‘Axudas de apoio á etapa de formación posdoutoral, ‘‘ Spain (grant ED481B-2021/095)’’. Funding for open access charge by Universidade da Coruña/CISUG

Composición de grupos tróficos funcionales en una comunidad macrobentónica submareal a lo largo de un gradiente de profundidad

The feeding guild composition of a macrobenthic community from southern Portugal was studied along a depth gradient (1.3 to 32 m). This gradient comprised shallow areas with severe physical stress and deeper areas with no significant hydrodynamic impact at the seafloor. The main goal was to determine the influence of the spatial and temporal differences of the hydrodynamic impact at the seafloor on the feeding guild composition of the macrobenthic community. The feeding guild composition changed gradually with depth, which reflects the differences in the hydrodynamics impact at the seafloor. Herbivores and sand-lickers dominated at the shallowest depths with fine sands, which correlated with higher levels of primary production. Scavengers were also distributed in the shallow areas, which was associated with the lower predation impact. Suspension feeders, in accordance with their physiological requirements, were distributed in coarser sands subjected to a physical impact. Carnivores, surface deposit feeders and sub-surface deposit feeders were distributed mainly below 8 m depth, where there was no significant impact from the wave climate. Carnivores were associated with coarser sands and were mainly small polychaetes and nemerteans. Sub-surface and surface deposit feeders were more abundant in the deepest areas of the depth gradient with fine sands and mud deposits with higher organic content. However, surface deposit feeders also occurred at shallower depths. Some seasonal differences related to disturbance impacts were found in the numerical dominance of the feeding guilds.Se han estudiado las categorías tróficas de una comunidad macrobentónica en el sur de Portugal, a lo largo de un gradiente de profundidad (de 1.3 m a 32 m). Este gradiente incluía áreas someras (poco profundas) con un estrés físico severo y áreas más profundas sin impacto hidrodinámico significativo a nivel del fondo marino. El objetivo principal fue determinar la influencia de las diferencias espaciales y temporales del impacto hidrodinámico en el fondo marino sobre la composición de las categorías tróficas de la comunidad macrobentónica. La composición de estas categorías tróficas cambió gradualmente con la profundidad, reflejando las diferencias del impacto hidrodinámico en el lecho marino. Las profundidades más someras, compuestas por arenas finas, estaban dominadas por anfípodos herbívoros y raspadores de arenas, correspondiéndose con elevados niveles de producción primaria. También había en estas áreas someras carnívoros/necrófagos asociados a un menor impacto de predación. Los suspensívoros, fundamentalmente bivalvos, predominaron en zonas con arenas más gruesas y mayor hidrodinamismo, de acuerdo con sus necesidades fisiológicas. Por debajo de los 8 m de profundidad y en zonas donde no se produce impacto del oleaje, dominaban carnívoros, detritívoros de fondo y de sub-fondo. Los carnívoros, asociados a arenas más gruesas, eran principalmente pequeños poliquetos y nemertinos. Los detritívoros de fondo y sub-fondo eran más abundantes en las zonas más profundas del gradiente, donde aparecían arenas finas y depósitos de limo con elevados contenidos en materia orgánica. Sin embargo, también se encontraron detritívoros de fondo en profundidades menores. Se encontraron algunas diferencias en la dominancia numérica de la estructura trófica a lo largo del año, lo que puede estar relacionado con impactos de incidentes en la zona

Optimization of plastic polymers for shellfish aquaculture infrastructures: in situ antifouling performance assessment

Biofouling poses a significant challenge to bivalve aquaculture affecting both the target culture and/or the immersed infrastructure. In suspended bivalve cultures (e.g., oysters and scallops), biofouling accumulation leads to additional labor demands and increased costs for the maintenance of underwater structures. Given that the inherent properties of materials used in farming infrastructure influence the formation of fouling communities, evaluating how these materials perform under diverse environmental conditions can help the industry select the most effective materials for preventing or minimizing biofouling growth. This study evaluates the impact of aquaculture material and environmental conditions on biofouling, focusing on two commonly used plastic polymers in marine aquaculture: polyamide (PA) and high-density polyethylene (PE). Both untreated and color-additive treated polymers were tested for their response to fouling development. Performance was gauged by total fouling wet weight and the extent of fouling-induced mesh occlusion. Experimental panels were deployed for 4 months (from May to September 2021) in estuarine (oyster farm) and marine (port) environments on the northern coast of Portugal. The marine sites exhibited greater fouling species diversity, while higher biofouling loads were found in the subtidal estuarine area. Within 3 months, complete mesh occlusion occurred mainly due to colonial hydroids (Obelia dichotoma) in the subtidal site. In contrast, panels deployed in the intertidal estuarine area had lower fouling biomass and mesh occlusion. Notably, significant differences between polymer types and treatments were only evident in the estuarine intertidal area, with long air exposure during low tide. White panels outperformed orange ones in fouling biomass, and PA panels outperformed PE panels in mesh occlusion. These differences were attributed to the settlement and growth of the acorn barnacle Austrominius modestus, known to favor dark-colored and less hydrophilic surfaces. Considering that oyster production in intertidal areas is one of the most important aquaculture industries globally, these findings offer valuable insights into material selection and characteristics that can mitigate fouling loads and their associated impacts. These results could also be relevant for other forms of bivalve aquaculture where infrastructure-related biofouling presents a challenge

An integrated Pan-European perspective on coastal Lagoons management through a mosaic-DPSIR approach

© The Author(s), 2016. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Scientific Reports 6 (2016): 19400, doi:10.1038/srep19400.A decision support framework for the management of lagoon ecosystems was tested using four European Lagoons: Ria de Aveiro (Portugal), Mar Menor (Spain), Tyligulskyi Liman (Ukraine) and Vistula Lagoon (Poland/Russia). Our aim was to formulate integrated management recommendations for European lagoons. To achieve this we followed a DPSIR (Drivers-Pressures-State Change-Impacts-Responses) approach, with focus on integrating aspects of human wellbeing, welfare and ecosystem sustainability. The most important drivers in each lagoon were identified, based on information gathered from the lagoons’ stakeholders, complemented by scientific knowledge on each lagoon as seen from a land-sea perspective. The DPSIR cycles for each driver were combined into a mosaic-DPSIR conceptual model to examine the interdependency between the multiple and interacting uses of the lagoon. This framework emphasizes the common links, but also the specificities of responses to drivers and the ecosystem services provided. The information collected was used to formulate recommendations for the sustainable management of lagoons within a Pan-European context. Several common management recommendations were proposed, but specificities were also identified. The study synthesizes the present conditions for the management of lagoons, thus analysing and examining the activities that might be developed in different scenarios, scenarios which facilitate ecosystem protection without compromising future generations.This study was supported by the European Commission, under the 7th Framework Programme, through the collaborative research project LAGOONS (contract n° 283157); by European funds through COMPETE and by Portuguese funds through the national Foundation for Science and Technology – FCT (PEst-C/MAR/LA0017/2013). The post-Doc grant SFRH/BPD/41117/2007 (M Dolbeth) and the PhD grant SFRH/BD/79170/2011 (LP Sousa) supported by FCT are also acknowledged

Distribution of Corbicula fluminea (Müller, 1774) in the invaded range: a geographic approach with notes on species traits variability

Corbicula fluminea is considered one of the most important non-native invasive species (NIS) in aquatic systems mainly due to its widespread distribution and ecological and economic impacts. This species is known to negatively affect native bivalves, also with severe effects on biodiversity and ecosystem functioning. Throughout an exhaustive bibliographic survey and with the aid of Geographic Information Systems tools, this study tracks the species dispersion from its native range, including the description of important physical and environmental barriers. Additional analyses were conducted to examine possible influences of latitudinal/ temperature gradients on important traits (e.g. life span, maximum and mean body length, growth at the end of first year). Altitude and winter minimum temperature appear to be delaying the invasion worldwide, but it seems inevitable that the species will spread across the globe. Latitude and summer temperature show a relationship with growth and life span. Overall, the information gathered in this review may be relevant to forecast future distribution patterns of this NIS, and to anticipate the possible implementation of effective management measures. Moreover, it may constitute a valuabletool inthe prediction of population responses to an increasingly changing environment.This research was supported by FCT (Portuguese Foundation for Science and Technology), through a PhD grant attributed to D. Crespo (SFRH/BD/80252/2011), a post-doc grant attributed to S. Leston (SFRH/BPD/91828/2012) and M Dolbeth (SFRH/BPD/41117/2007) and BIOCHANGED project (PTDC/MAR/111901/2009), subsidized by the European Social Fund and MCTES (Ministério da Ciência, Tecnologia e Ensino Superior) National Funds, through the POPH (Human Potential Operational Programme), QREN (National Strategic Reference Framework) and COMPETE (Programa Operacional Factores de Competitividade).info:eu-repo/semantics/publishedVersio

Predicting estuarine benthic production using functional diversity

We considered an estuarine system having naturally low levels of diversity, but attaining considerable high production levels, and being subjected to different sorts of anthropogenic impacts and climate events to investigate the relationship between diversity and secondary production. Functional diversity measures were used to predict benthic production, which is considered as a proxy of the ecosystem provisioning services. To this end, we used a 14-year dataset on benthic invertebrate community production from a seagrass and a sandflat habitat and we adopted a sequential modeling approach, where abiotic, trait community weighted means (CWM) and functional diversity indices were tested by generalized linear models (GLM), and their significant variables were then combined to produce a final model. Almost 90% of variance of the benthic production could be predicted by combining the number of locomotion types, the absolute maximum atmospheric temperature (proxy of the heat waves occurrence), the type of habitat and the mean body mass, by order of importance. This result is in agreement with the mass ratio hypothesis, where ecosystem functions/services can be chiefly predicted by the dominant trait in the community, here measured as CWM. The increase of benthic production with the number of locomotion types may be seen as greater possibility of using the resources available in the system. Such greater efficiency would increase production. The other variables were also discussed in line of the previous hypothesis and taking into account the general positive relationship obtained between production and functional diversity indices. Overall, it was concluded that traits representative of wider possibilities of using available resources and higher functional diversity are related with higher benthic production

Macrozoobenthic and fish production of the Mondego estuary : anthropogenic and climate variability impact

Tese de doutoramento em Biologia (Ecologia) apresentada à Fac. de Ciências e Tecnologia de Coimbr

Macrozoobenthic and fish production of the Mondego estuary : anthropogenic and climate variability impact

Tese de doutoramento em Biologia (Ecologia) apresentada à Fac. de Ciências e Tecnologia de Coimbr

Effects of local and large-scale climate patterns on estuarine resident fishes: The example of Pomatoschistus microps and Pomatoschistus minutus

Large-scale and local climate patterns are known to influence several aspects of the life cycle of marine fish. In this paper, we used a 9-year database (2003e2011) to analyse the populations of two estuarine resident fishes, Pomatoschistus microps and Pomatoschistus minutus, in order to determine their relationships with varying environmental stressors operating over local and large scales. This study was performed in the Mondego estuary, Portugal. Firstly, the variations in abundance, growth, population structure and secondary production were evaluated. These species appeared in high densities in the beginning of the study period, with subsequent occasional high annual density peaks, while their secondary production was lower in dry years. The relationships between yearly fish abundance and the environmental variables were evaluated separately for both species using Spearman correlation analysis, considering the yearly abundance peaks for the whole population, juveniles and adults. Among the local climate patterns, precipitation, river runoff, salinity and temperature were used in the analyses, and North Atlantic Oscillation (NAO) index and sea surface temperature (SST) were tested as large-scale factors. For P. microps, precipitation and NAO were the significant factors explaining abundance of the whole population, the adults and the juveniles as well. Regarding P. minutus, for the whole population, juveniles and adults river runoff was the significant predictor. The results for both species suggest a differential influence of climate patterns on the various life cycle stages, confirming also the importance of estuarine resident fishes as indicators of changes in local and large-scale climate patterns, related to global climate change.This work was supported by the FCT (Portuguese Foundation for Science and Technology) through a PhD grant attributed to D. Nyitrai (SFRH/BD/48742/2008), a post-doc grant attributed to F. Martinho (SFRH/BPD/63527/2009) and BIOCHANGED project (PTDC/MAR/111901/2009), with funds from POPH (Portuguese Operational Human Potential Program), QREN Portugal (Portuguese National Strategic Reference Framework), and MCTES (Portuguese Ministry of Science, Technology, and Higher Education)