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Caracterização de uma amostra de cetáceos arrojados que apresentaram glóbulos hialinos no citoplasma de hepatócitos

Câmara, Nakita
Fonte: Repositório Científico Lusófona Publicador: Repositório Científico Lusófona
Tipo: Dissertação de Mestrado
POR
Relevância na Pesquisa
27.44%
Nos animais, o fígado é um dos órgãos fundamentais para uma adequada homeostasia. Sendo os cetáceos mamíferos, exclusivamente aquáticos, que vivem nos mares, rios e/ou estuários, este órgão desempenha um papel importante frente aos desafios da vida no ambiente marinho. A presença de glóbulos hialinos no citoplasma de hepatócitos foi observada microscopicamente e descrita no fígado de cetáceos. Contudo, a natureza e mecanismos de desenvolvimento de tais glóbulos são pouco conhecidos. O presente trabalho, desenvolvido nas Ilhas Canarias, procurou investigar a presença de glóbulos hialinos nos hepatócitos de cetáceos arrojados entre 2009 e 2013, do ponto de vista epidemiológico, tendo em conta factores como espécie e idade, assim como tipo de arrojamento, entre outros. De 170 amostras de fígado foi possível avaliar 100, das quais 69 apresentaram glóbulos hialinos. Estes parecem estar relacionados com congestão hepática em animais bem nutridos, e o seu aparecimento é independente da espécie, sexo e idade dos animais. Factores como má nutrição e arrojamento por doença não consumptiva de origem natural parecem inibir a formação destas estruturas.; In animals, the liver is the key organ for proper homeostasis. Since cetaceans are exclusively aquatic mammals that live in the sea...

Gastrointestinal parasites and prey items from a mass stranding of false killer whales, Pseudorca crassidens, in Rio Grande do Sul, Southern Brazil

ANDRADE,A. L. V.; PINEDO,M. C.; BARRETO,A. S.
Fonte: Instituto Internacional de Ecologia Publicador: Instituto Internacional de Ecologia
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/02/2001 EN
Relevância na Pesquisa
27.14%
The gastrointestinal tract of 14 false killer whales, 6 males and 8 females, stranded in June 1995 in southern Brazil, with total standard lengths from 338 to 507 cm, were analysed for endoparasites and food items. A pregnant female had a male foetus of 77.5 cm. Parasites were found in all 14 false killer whales. The nematode Anisakis simplex (Rudolphi, 1809) was found in the stomach of 57% of the animals and the acanthocephalan Bolbosoma capitatum (Linstow, 1889) Porta, 1908 was present in the intestine of all specimens and showed densities up to 600 m-1. An unidentified cestode (Tethrabothridae) was found also in the intestines of 14% of the individuals. The high infections of B. capitatum and A. simplex were not directly related with the cause of death. In the stomachs of four females, beaks of at least eight specimens of the oceanic and epipelagic species Ommastrephes bartramii (Lesueur, 1821) were found, with mantle lengths ranging from 189.8 to 360.9 mm. The distribution of O. bartramii in the coast of Rio Grande do Sul is consistent with false killer whales feeding in continental shelf waters.

First confirmed record of Feresa attenuata (Delphinidae) for the Northern Brazilian Coast

Magalhães,Fagner Augusto de; Garri,Rosana Griselda; Tosi,Carolina Herédia; Siciliano,Salvatore; Chellappa,Sathyabama; Silva,Flavio José de Llima
Fonte: Instituto Virtual da Biodiversidade | BIOTA - FAPESP Publicador: Instituto Virtual da Biodiversidade | BIOTA - FAPESP
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2007 EN
Relevância na Pesquisa
27.63%
In Brazil only one confirmed stranding is known from an emaciated specimen collected along the southeastern coast. The aim of this work is to report a recent record of a pygmy killer whale from the coast of Maranhão State, northern Brazil. On 22 October 2005, through regular surveys conducted by Projeto Cetáceos do Maranhão team, a beach-worn skull of a pygmy killer whale was found on the Mangue Seco beach, at Caju Island, Maranhão State. The specimen was identified through peculiar features, such as a short beak, 11 teeth per row in the maxile and the distance between the anterorbital notch and the end of the toothrow. This stranding suggests that pygmy killer whales may use oceanic waters close to Maranhão continental shelf. This is the second confirmed stranding of F. attenuata for the Brazilian Coast and the first along the northern coast. The present record increases our poor knowledge on the cetacean fauna of the northern Brazilian coast.

The high fidelity of the cetacean stranding record: insights into measuring diversity by integrating taphonomy and macroecology

Pyenson, Nicholas D.
Fonte: The Royal Society Publicador: The Royal Society
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
27.44%
Stranded cetaceans have long intrigued naturalists because their causation has escaped singular explanations. Regardless of cause, strandings also represent a sample of the living community, although their fidelity has rarely been quantified. Using commensurate stranding and sighting records compiled from archived datasets representing nearly every major ocean basin, I demonstrated that the cetacean stranding record faithfully reflects patterns of richness and relative abundance in living communities, especially for coastlines greater than 2000 km and latitudinal gradients greater than 4°. Live–dead fidelity metrics from seven different countries indicated that strandings were almost always richer than live surveys; richness also increased with coastline length. Most death assemblages recorded the same ranked relative abundance as living communities, although this correlation decreased in strength and significance at coastline lengths greater than 15 000 km, highlighting the importance of sampling diversity at regional scales. Rarefaction analyses indicated that sampling greater than 10 years generally enhanced the completeness of death assemblages, although protracted temporal sampling did not substitute for sampling over longer coastlines or broader latitudes. Overall...

Estimating At-Sea Mortality of Marine Turtles from Stranding Frequencies and Drifter Experiments

Koch, Volker; Peckham, Hoyt; Mancini, Agnese; Eguchi, Tomoharu
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 20/02/2013 EN
Relevância na Pesquisa
27.63%
Strandings of marine megafauna can provide valuable information on cause of death at sea. However, as stranding probabilities are usually very low and highly variable in space and time, interpreting the results can be challenging. We evaluated the magnitude and distribution of at-sea mortality of marine turtles along the Pacific coast of Baja California Sur, México during 2010–11, using a combination of counting stranded animals and drifter experiments. A total of 594 carcasses were found during the study period, with loggerhead (62%) and green turtles (31%) being the most common species. 87% of the strandings occurred in the southern Gulf of Ulloa, a known hotspot of loggerhead distribution in the Eastern Pacific. While only 1.8% of the deaths could be definitively attributed to bycatch (net marks, hooks), seasonal variation in stranding frequencies closely corresponded to the main fishing seasons. Estimated stranding probabilities from drifter experiments varied among sites and trials (0.05–0.8), implying that only a fraction of dead sea turtles can be observed at beaches. Total mortality estimates for 15-day periods around the floater trials were highest for PSL, a beach in the southern Gulf of Ulloa, ranging between 11 sea turtles in October 2011 to 107 in August 2010. Loggerhead turtles were the most numerous...

Possible Causes of a Harbour Porpoise Mass Stranding in Danish Waters in 2005

Wright, Andrew J.; Maar, Marie; Mohn, Christian; Nabe-Nielsen, Jacob; Siebert, Ursula; Jensen, Lasse Fast; Baagøe, Hans J.; Teilmann, Jonas
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 27/02/2013 EN
Relevância na Pesquisa
27.14%
An unprecedented 85 harbour porpoises stranded freshly dead along approximately 100 km of Danish coastline from 7–15 April, 2005. This total is considerably above the mean weekly stranding rate for the whole of Denmark, both for any time of year, 1.23 animals/week (ranging from 0 to 20 during 2003–2008, excluding April 2005), and specifically in April, 0.65 animals/week (0 to 4, same period). Bycatch was established as the cause of death for most of the individuals through typical indications of fisheries interactions, including net markings in the skin and around the flippers, and loss of tail flukes. Local fishermen confirmed unusually large porpoise bycatch in nets set for lumpfish (Cyclopterus lumpus) and the strandings were attributed to an early lumpfish season. However, lumpfish catches for 2005 were not unusual in terms of season onset, peak or total catch, when compared to 2003–2008. Consequently, human activity was combined with environmental factors and the variation in Danish fisheries landings (determined through a principal component analysis) in a two-part statistical model to assess the correlation of these factors with both the presence of fresh strandings and the numbers of strandings on the Danish west coast. The final statistical model (which was forward selected using Akaike information criterion; AIC) indicated that naval presence is correlated with higher rates of porpoise strandings...

The Stranding Anomaly as Population Indicator: The Case of Harbour Porpoise Phocoena phocoena in North-Western Europe

Peltier, Helene; Baagøe, Hans J.; Camphuysen, Kees C. J.; Czeck, Richard; Dabin, Willy; Daniel, Pierre; Deaville, Rob; Haelters, Jan; Jauniaux, Thierry; Jensen, Lasse F.; Jepson, Paul D.; Keijl, Guido O.; Siebert, Ursula; Van Canneyt, Olivier; Ridoux, Vi
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 22/04/2013 EN
Relevância na Pesquisa
28.02%
Ecological indicators for monitoring strategies are expected to combine three major characteristics: ecological significance, statistical credibility, and cost-effectiveness. Strategies based on stranding networks rank highly in cost-effectiveness, but their ecological significance and statistical credibility are disputed. Our present goal is to improve the value of stranding data as population indicator as part of monitoring strategies by constructing the spatial and temporal null hypothesis for strandings. The null hypothesis is defined as: small cetacean distribution and mortality are uniform in space and constant in time. We used a drift model to map stranding probabilities and predict stranding patterns of cetacean carcasses under H0 across the North Sea, the Channel and the Bay of Biscay, for the period 1990–2009. As the most common cetacean occurring in this area, we chose the harbour porpoise Phocoena phocoena for our modelling. The difference between these strandings expected under H0 and observed strandings is defined as the stranding anomaly. It constituted the stranding data series corrected for drift conditions. Seasonal decomposition of stranding anomaly suggested that drift conditions did not explain observed seasonal variations of porpoise strandings. Long-term stranding anomalies increased first in the southern North Sea...

Trends in Stranding and By-Catch Rates of Gray and Harbor Seals along the Northeastern Coast of the United States: Evidence of Divergence in the Abundance of Two Sympatric Phocid Species?

Johnston, David W.; Frungillo, Jaime; Smith, Ainsley; Moore, Katie; Sharp, Brian; Schuh, Janelle; Read, Andrew J.
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 22/07/2015 EN
Relevância na Pesquisa
27.14%
Harbor seals and gray seals are sympatric phocid pinnipeds found in coastal waters of the temperate and sub-Arctic North Atlantic. In the Northwest Atlantic, both species were depleted through a combination of subsistence hunts and government supported bounties, and are now re-occupying substantial portions of their original ranges. While both species appear to have recovered during the past 2 decades, our understanding of their population dynamics in US waters is incomplete. Here we describe trends in stranding and bycatch rates of harbor and gray seals in the North East United States (NEUS) over the past 16 years through an exploratory curve-fitting exercise and structural break-point analysis. Variability in gray seal strandings in Southern New England and bycatch in the Northeast Sink Gillnet Fishery were best described by fitting positive exponential and linear models, and exhibited rates of increase as high as 22%. In contrast, neither linear nor exponential models fit the oscillation of harbor seal strandings and bycatch over the study period. However, a breakpoint Chow test revealed that harbor seal strandings in the Cape Cod, Massachusetts region and harbor seal bycatch in the Northeast Sink Gillnet Fishery increased in the 1990s and then started declining in the early to mid-2000s. Our analysis indicates that ongoing variation in natural and anthropogenic mortality rates of harbor and gray seals in the NEUS is not synchronous...

Cleaving the Interactions Between Sluicing and Preposition Stranding

Rodrigues, Cilene; Nevins, Andrew Ira; Vicente, Luis
Fonte: John Benjamins Publishing Publicador: John Benjamins Publishing
Tipo: Monograph or Book
EN_US
Relevância na Pesquisa
27.97%
Merchant (2001) proposes that preposition stranding under sluicing is allowed only in those languages that also allow P-stranding in regular wh- questions. Spanish and Brazilian Portuguese (BP) seem to falsify this generalization, as both are non-Pstranding languages that allow P-stranding under sluicing. Our claim is that, despite initial appearances, Spanish and BP do not constitute counterexamples to Merchant’s generalization. We propose that there are two sources of sluicing in Romance: wh-movement plus IP-deletion (Merchant 2001), and clefting plus IP deletion (Merchant 1998), the latter being the underlying source for P-stranding sluicing. The apparent P-stranding effect follows from the fact that, as opposed to regular interrogatives, clefts in BP and Spanish do not involve P-stranding at all. We reinforce this conclusion by showing that, in those cases where a cleft base is independently banned, P-stranding under sluicing becomes impossible too.; Linguistics

Estrutura e dinâmica da associação macrozoobentônica da zona entremarés em dois locais sob distintas condições ambientais, praia do Cassino (RS, Brasil)

Silva, Pedro de Sá Rodrigues da
Fonte: Universidade Federal do Rio Grande Publicador: Universidade Federal do Rio Grande
Tipo: Dissertação de Mestrado
POR
Relevância na Pesquisa
27.44%
Dissertação(mestrado) - Universidade Federal do Rio Grande, Programa de Pós–Graduação em Oceanografia Biológica, Instituto de Oceanografia, 2006.; Este trabalho objetiva avaliar a estrutura e dinâmica da associação de macroinvertebrados bentônicos da zona entremarés de dois locais com distintas características ambientais da praia do Cassino, RS, Brasil. O local 1 possui características de praia dissipativa extrema, sedimentos finos e baixa hidrodinâmica, enquanto que o local 2 características dissipativas/intermediárias, sedimento mais grosseiros e maior hidrodinâmica. Eventos esporádicos de deposição de lama são observados no local 1. Foi realizado um acompanhamento durante 14 meses (abril/04 até maio/05) com amostragens mensais. Os 2 primeiros meses foram considerados como piloto, sendo seus dados abordados no capítulo III. Em cada local, foram demarcadas três transversais (separadas por 50m) perpendicular a linha d’água, nas quais amostras foram coletadas em triplicata em 4 níveis (separados por 10 m). As transversais se estenderam desde 10m acima do varrido superior, até cerca de 1m de profundidade. No capítulo I, foi considerada a variabilidade temporal da associação. Esta apresentou uma marcada dinâmica...

Preposition Stranding in Heritage Speakers of Brazilian Portuguese

de Lemos, Simone H
Fonte: FIU Digital Commons Publicador: FIU Digital Commons
Tipo: Artigo de Revista Científica Formato: application/pdf
Relevância na Pesquisa
27.63%
Influential bodies of work in language acquisition studies single out heritage bilingualism as a discrete acquisition process within the bilingualism continuum. In regards to the acquisition of WH-/QU- interrogatives containing prepositional phrases (PP), the present study examined whether heritage speakers (HS) of Brazilian Portuguese (BP) produce preposition stranding (P-stranding) constructions in their heritage language, in contrast to monolingual and adult speakers of BP, where prepositions are pied-piped to form the interrogative. Participants were HS of BP born in the USA and in Brazil, monolinguals, and late bilingual adults. The experiment consisted of an elicited production task and a grammaticality judgment task, both carried out in BP and then in English. Results showed that HS born in the USA use P-stranding in QU- interrogatives productively and systematically, in contrast to the other three groups. Moreover, no evidence of protracted acquisition was found in this group. No signs of attrition were detected among bilinguals.

The Processing of Preposition-Stranding Constructions in English

Enzinna, Naomi R
Fonte: FIU Digital Commons Publicador: FIU Digital Commons
Tipo: Artigo de Revista Científica Formato: application/pdf
Relevância na Pesquisa
37.76%
One of the prominent questions in modern psycholinguistics is the relationship between the grammar and the parser. Within the approach of Generative Grammar, this issue has been investigated in terms of the role that Principles of Universal Grammar may play in language processing. The aim of this research experiment is to investigate this topic. Specifically, this experiment aims to test whether the Minimal Structure Principle (MSP) plays a role in the processing of Preposition-Stranding versus Pied-Piped Constructions. This investigation is made with a self-paced reading task, an on-line processing test that measures participants’ unconscious reaction to language stimuli. Monolingual English speakers’ reading times of sentences with Preposition-Stranding and Pied-Piped Constructions are compared. Results indicate that neither construction has greater processing costs, suggesting that factors other than the MSP are active during language processing.

Simulating Mechanisms for Dispersal, Production and Stranding of Small Forage Fish in Temporary Wetland Habitats

Yurek, Simeon; DeAngelis, Donald L.; Trexler, Joel C.; Jopp, Fred; Donalson, Douglas D.
Fonte: FIU Digital Commons Publicador: FIU Digital Commons
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
27.44%
Movement strategies of small forage fish (<8 cm total length) between temporary and permanent wetland habitats affect their overall population growth and biomass concentrations, i.e., availability to predators. These fish are often the key energy link between primary producers and top predators, such as wading birds, which require high concentrations of stranded fish in accessible depths. Expansion and contraction of seasonal wetlands induce a sequential alternation between rapid biomass growth and concentration, creating the conditions for local stranding of small fish as they move in response to varying water levels. To better understand how landscape topography, hydrology, and fish behavior interact to create high densities of stranded fish, we first simulated population dynamics of small fish, within a dynamic food web, with different traits for movement strategy and growth rate, across an artificial, spatially explicit, heterogeneous, two-dimensional marsh slough landscape, using hydrologic variability as the driver for movement. Model output showed that fish with the highest tendency to invade newly flooded marsh areas built up the largest populations over long time periods with stable hydrologic patterns. A higher probability to become stranded had negative effects on long-term population size...

A radical reconsideration of serialism and chord stranding, applied to a personal jazz style (CD recordings and exegesis)

Martin, Christopher Robert
Fonte: Universidade de Adelaide Publicador: Universidade de Adelaide
Tipo: Tese de Doutorado
Publicado em //2008
Relevância na Pesquisa
37.85%
Despite a widely held view that serialism is incompatible with jazz improvisation, there are many instances of jazz musicians successfully engaging with this concept. This conflict seems likely to have arisen from differing interpretations of ‘serialism’; however, the question of how a jazz improviser’s approach to serialism might, or perhaps should, differ from a classical composer’s, has been left unasked. In addition, most attempts at the use of serialism within improvisation remain undocumented by the musicians concerned. The chord stranding techniques of Lutoslawski are less well known and less controversial than serialism. Connections between Lutoslawski’s twelve-note chords and traditional twelve-note rows are obvious, as are connections between the concept of harmonic ‘strands’ and the jazz harmonic device of superimposition. The possibilities for use of Lutoslawski’s ideas within a jazz context are interesting and worthy of consideration. This research project involves the composition and performance of jazz pieces applying serialism and chord stranding, as well as the exploration of precedents for these ideas within the jazz tradition. The four CD recordings within this thesis present the initial development of these concepts (CDs 1 and 2); an exploration of serialism in the music of John Coltrane (CD 3); and an album of original material demonstrating the integrated application of these concepts (CD 4). The exegesis describes the broader context of this project and examines the relevant music theory concepts. It uses analysis of transcriptions to show the specific application of techniques. The key outcomes from this research are (i) the development and (ii) the demonstration of techniques for pitch organisation based on serialism and chord stranding that are appropriate for jazz improvisation. The recordings and exegesis show the successful integration of these techniques with existing melodic and harmonic ideas familiar to jazz musicians. It is argued that the approach to jazz improvisation explored within this research represents a novel and radical reinterpretation of the traditional concept of serialism and that this approach is helpful when considering the effective use of serialism in a jazz context. From a broader perspective...

A Geospatial Analysis of Mystic Aquarium's Marine Animal Stranding Data

Smith, Ainsley
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Masters' project
Publicado em 08/04/2013
Relevância na Pesquisa
37.97%
Mystic Aquarium’s Marine Mammal and Sea Turtle Stranding Program has been responding to distressed marine animals in Connecticut and Rhode Island for over 35 years. To date, the Aquarium has responded to more than 1,290 stranded seals, whales, dolphins and sea turtles. As required by NOAA, each recorded stranding has an associated Level A data form which contains the details of the stranding event, including specific information on the animal, its condition and the exact location of the event. This detailed information is very valuable, and can be mapped in programs such as ArcMap and shared through online databases like OBIS-SEAMAP and SeaTurtle.Org for visual representation and analysis. Interactive maps of the coordinates and details of these stranding events can be used to detect spatial and temporal trends in marine animal strandings, and can also improve efficiency in responding to future events by targeting education and outreach efforts based on historic observations of species, location and seasonality. Mystic Aquarium’s stranding data was mapped using both ArcMap and OBIS-SEAMAP, to look for spatial and temporal patterns in marine mammal and sea turtle strandings. The maps produced will be used to target resources and educational efforts to identified stranding hot spots...

Patterns of Seal Strandings and Human Interactions in Cape Cod, Massachuettes

Swails, Kathryn Sandmeyer
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Masters' Project Formato: 102467 bytes; application/pdf
Publicado em //2005; 2005 EN_US
Relevância na Pesquisa
27.63%
From 1999 to 2004, 622 pinniped strandings were recorded by the Cape Cod Stranding Network (CCSN). Fifty-seven of these strandings were classified as human interaction cases. Strandings were defined as human interaction (HI) cases if there was evidence of anthropogenic injury or harassment present of noted upon necropsy. To minimize the frequency and severity of adverse interactions between seals and humans, it is important to first understand the spatial and temporal patterns of such interactions. Using stranding data obtained from the CCSN, I examined the seasonal and spatial distribution of interactions between humans and four pinniped species: harp seals (Phoca groenlandica), harbor seals (Phoca vitulina), gray seals (Halichoerus grypus), and hooded seals (Cystophora cristata). The majority of the HI cases were fishery entanglements (29 seals), followed by boat collisions (11 seals), harassment (9 seals) and blunt trauma (8 seals). I compared the frequency of all strandings with the length of shoreline in each of the Cape’s fifteen towns. I then considered the frequency of strandings in relation to the number of beach vehicle permits sold in each town for the summer season. The highest number of HI strandings occurred in the summer months in the Chatham area. Knowledge of seasonal and spatial patterns of HI cases will allow managers to focus mitigation efforts in times and areas when such interactions occur frequently. This knowledge will also allow managers to better disseminate information on appropriate means of viewing wild seals.

SPATIAL AND TEMPORAL TRENDS IN SEA TURTLE STRANDINGS IN NORTH CAROLINA, 1980-2003

Chan, Valerie Ann
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Masters' Project Formato: 249613 bytes; application/pdf
Publicado em //2004; 2004 EN_US
Relevância na Pesquisa
27.97%
Natural and anthropogenic activities cause injured or dead sea turtles to wash ashore or strand along coastlines. In North Carolina, the NC Wildlife Resources Commission collects stranding information on sea turtles as part of the Sea Turtle Stranding and Salvage Network, which was formed in 1980. In this study, I characterized temporal and spatial trends in sea turtle strandings in North Carolina. I described temporal trends in sea turtle strandings by year, season, sex, cause of death (if known), and mean body size, overall and by species. I also looked at spatial trends in stranding locations to determine if they were uniformly or aggregately distributed, overall and seasonally, by dividing the shoreline into 10 km bins and creating histograms. Stranding numbers have increased over the past 23 years, but seem consistent since 1995 when effort is believed to have been standardized. Strandings generally increased from May through July as well as from November to December. For turtles whose sex was reliably classified by observers, all species except leatherbacks exhibited a heavy female bias; leatherbacks showed a male bias. Mean size of strandings per species appears roughly constant. With the exception of leatherbacks whose mean stranding size corresponded with adults...

A PROCEDURAL REVIEW OF THE MASS PILOT WHALE STRANDING IN THE FLORIDA KEYS, 2003

Jenkins, Cherie L.
Fonte: Universidade Duke Publicador: Universidade Duke
Tipo: Masters' Project Formato: 200135 bytes; application/pdf
Publicado em //2004; 2004 EN_US
Relevância na Pesquisa
37.92%
On April 18, 2003, twenty-eight short-finned pilot whales stranded in the shallow waters near Content Keys Passage, about five miles north of Big Pine Key in the lower Florida Keys. Of the twenty-eight, 21 animals died at the site, were euthanized or moved back into deeper water and their whereabouts were unknown. Seven whales were moved to a rehabilitation site and after almost four months of care, four female juveniles and one male calf were released about 15 miles offshore in the Atlantic Ocean. The response, rehabilitation and release efforts during mass stranding events are challenging situations that require the cooperation of multiple organizations, including federal agencies, regional stranding networks, local marine mammal societies and volunteers. I examine the legislative and regulatory basis for stranding programs and the organizational structure that they establish, and evaluate conflicts that arose during this particular mass stranding of pilot whales. I use recommendations solicited from various professionals involved in all phases of the event to provide suggestions as to how this process could be improved upon during future events. I provide specific recommendations to address problems in communication among the multiple organizations...

First stranding records of Ziphius cavirostris (Cetacea, Odontoceti) on the coast of Espírito Santo, Brazil; Primeiros registros de encalhe de Ziphius cavirostris (Cetacea, Odontoceti) na costa do Espírito Santo, Brasil

Mayorga, Luis Felipe Silva Pereira; Organização Consciência Ambiental, Instituto ORCA; Barbosa, Lupercio Araújo; Bhering, Renata Cristina Campos
Fonte: Universidade Federal de Santa Catarina Publicador: Universidade Federal de Santa Catarina
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; Formato: application/pdf
Publicado em 01/01/2010 POR
Relevância na Pesquisa
37.44%
This study presents the first stranding records of Ziphius cavirostris (Ziphius cavirostris Cuvier, 1823) (Cetacea, Odontoceti) in the state of Espírito Santo, Brazil. The first occurrence was recorded in the second half of 2007 on Trindade Island (20°30'46,82"S, 29°18'26,32"O), a volcanic island located 1.167km away from the mainland, where morphometric data were not collected. The other occurrence was recorded in the second half of 2009 in the city of Vila Velha (20º22'570"S, 40º18'292"O), where morphometric data were collected.; http://dx.doi.org/10.5007/2175-7925.2010v23n3p223O presente trabalho reúne os primeiros registros de encalhe de Ziphius cavirostris (Ziphius cavirostris Cuvier, 1823) (Cetacea, Odontoceti) no Estado do Espírito Santo, Brasil. A primeira ocorrência data do segundo semestre de 2007 na Ilha da Trindade (20°30'46,82"S, 29°18'26,32"O), uma ilha vulcânica situada a 1.167km do continente, onde não foram coletados dados morfométricos. A outra ocorrência data do segundo semestre de 2009 na cidade de Vila Velha (20º22'570"S, 40º18'292"O), onde foram coletados dados morfométricos.

Is there temporal variation on solid waste stranding in mangroves? A case study in Ratones mangrove, Florianopolis, Brazil

Vieira, Bianca Pinto; UFSC; Dias, Dayse; Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina; Nakamura, Elaine Mitie; Departamento de Ecologia e Zoologia, Universidade Federal de Santa Catarina; Arai, Tammy Iwasa; Departamento de E
Fonte: Universidade Federal de Santa Catarina Publicador: Universidade Federal de Santa Catarina
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; Formato: application/pdf; application/pdf
Publicado em 16/11/2012 ENG; POR
Relevância na Pesquisa
27.76%
http://dx.doi.org/10.5007/2175-7925.2013v26n1p79Mangrove areas are decreasing around the world due to population increase. The most damaging activities include embankments, shrimp farming, and dumping of wastes. The temporal and spatial stranding patterns of solid waste are important to establish probable sources and understand their role in the dispersion of organisms through natural areas. In this study, we analyze temporal variation of solid waste stranding in Ratones mangrove, northwestern Santa Catarina Island (Brazil). Samplings were carried out monthly during one year in four different areas. In each area, two 50 m2 random plots were sampled per month. All solid waste strands on the plots were removed, quantified, and qualified. Plastic and nylon items (both made of petroleum) represented 80% of waste stranding. There were significant differences in temporal stranding with regard to plastic, but not to nylon. Wastes were found in all samples throughout the year, and some areas are more affected than others. Places with dense edges of Spartina alterniflora Loisel (Poaceae) seem to have less solid waste inside mangrove forest, perhaps due to the effect of grass acting as a mesh barrier. The results reflected concerns with conservation...