J. V. Finger, V. R. F. Benemann, E. Petersen, Fernanda C. L. Valls, M. Petry
{"title":"PRELIMINARY INFORMATION ON THE DIET OF THE IMPERIAL SHAG Phalacrocorax atriceps BREEDING ON ELEPHANT ISLAND, ANTARCTICA","authors":"J. V. Finger, V. R. F. Benemann, E. Petersen, Fernanda C. L. Valls, M. Petry","doi":"10.4322/APA.2016.003","DOIUrl":"https://doi.org/10.4322/APA.2016.003","url":null,"abstract":"e aim of the study was to describe prey items in the diet of Imperial Shag through pellets analysis. e collection of pellets occurred in the breeding site during the austral summer of 2011/12 in Stinker Point, Elephant Island. A total of 34 pellets of Imperial Shag were analyzed and their frequency of occurrence was calculated. Fish remains were found in all pellets. Two families of demersal-benthic sh were identi ed through otoliths: Harpagiferidae and Nototheniidae. Nematodes occurred frequently. Other invertebrates such as molluscs and polychaetes occurred occasionally, so as vegetable matter (algae) and stones. ese items are probably from stomach contents of ingested sh or were accidentally ingested by the bird while building the nest. Our preliminary analysis showed that Imperial Shags breeding on Elephant Island have a similar diet composition to other shag species which breed in the sub-Antarctic islands and in the Antarctic Peninsula, with some items absent. However, further analysis will present more concrete data on the mass, volume and taxonomic species level of each item.","PeriodicalId":169975,"journal":{"name":"INCT-APA Annual Activity Report","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125578871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tiago Malavazi de Christo, J. Fardin, D. Simonetti, C. Álvarez
{"title":"Energetic Indicators for Planning and Projects in the Keller Peninsula","authors":"Tiago Malavazi de Christo, J. Fardin, D. Simonetti, C. Álvarez","doi":"10.4322/APA.2014.117","DOIUrl":"https://doi.org/10.4322/APA.2014.117","url":null,"abstract":"is paper gathers information on the energetic pro le of the Brazilian Antarctic Station and shows energetic indicators obtained during the study of the renewable resources potentials of the region. e technologies for generation and use of energy are also investigated and assessed, and a proposal of a hybrid energetic matrix is presented. e technologies for processing solid waste, cogeneration in internal combustion engines and in the incinerator, use of photovoltaic panels and wind turbines were assessed.","PeriodicalId":169975,"journal":{"name":"INCT-APA Annual Activity Report","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126891202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Structure of the Cetacean Community Around the Antarctic Peninsula","authors":"C. Z. Lazaneo, L. D. Rosa, E. Secchi","doi":"10.4322/APA.2014.113","DOIUrl":"https://doi.org/10.4322/APA.2014.113","url":null,"abstract":"e aim of the present study was to investigate if cetacean diversity varies among areas with di erent oceanographic conditions around the Antarctic Peninsula. e study area consisted of the Drake Passage, Brans eld and Gerlache Straits and the Weddell Sea. is region has a complex circulation pattern, including mesoscale jets and eddies, which together with dimensions of shallows and canyons in bays, ords and straits make the complexity of current elds. ese characteristics play an important role in the transportation, concentration and retention of nutrients, favoring primary and secondary productivity and attracting the top consumers. e area was divided into 10 sub-areas based on oceanographic features such as surface circulation patterns. Cetacean distribution data were obtained during ship-based surveys run by the Brazilian Antarctic Program from 1998 to 2011 austral summers. Line transect sampling methods were used to calculate cetacean encounter rates. e diversity index for each area was determined by the Shannon-Weaver diversity index. Humpback, minke and killer whales were the most frequently sighted species, predominating in areas with low species richness such as Gerlache Strait. Areas without species dominance (e.g. Elephant Island and Weddell Sea) showed greater diversity. Our results suggest that open areas and areas close to oceanographic fronts sustain lower encounter rates for individual species but support greater diversity than con ned areas.","PeriodicalId":169975,"journal":{"name":"INCT-APA Annual Activity Report","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126905476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alexandre de Avila Leripio, Fernanda Leite, R. Picolotto, M. Viana
{"title":"Implementation of environmental management system in the brazilian antarctic base","authors":"Alexandre de Avila Leripio, Fernanda Leite, R. Picolotto, M. Viana","doi":"10.4322/apa.2014.050","DOIUrl":"https://doi.org/10.4322/apa.2014.050","url":null,"abstract":"","PeriodicalId":169975,"journal":{"name":"INCT-APA Annual Activity Report","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127228957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"INFLUENZA DETECTED IN Macronectes giganteus IN TWO ISLANDS OF SOUTH SHETLANDS, ANTARCTICA","authors":"E. Petersen, M. Petry, E. Durigon, J. Araujo","doi":"10.4322/APA.2015.004","DOIUrl":"https://doi.org/10.4322/APA.2015.004","url":null,"abstract":"Influenza A virus was detected in different species of birds and migratory aquatic birds. They are the main reservoir of the virus. In this research we detected the first Influenza A virus in Southern Giant Petrel in an Antarctic region. The results represent 0.33% of the samples collected in two breeding areas of the species. Some factors can explain the introduction of these pathogens and diseases in Antarctica, such as bird's migratory behavior and the remains of the virus in cold waters.","PeriodicalId":169975,"journal":{"name":"INCT-APA Annual Activity Report","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131972457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MICROPLANKTON COMMUNITY STRUCTURE OF THE SHALLOW COASTAL ZONE AT ADMIRALTY BAY, ANTARCTICA: COMPARISON BETWEEN TWO CONSECUTIVE AUSTRAL SUMMERS","authors":"D. R. Tenenbaum, J. J. Barrera-Alba, M. Tenório","doi":"10.4322/APA.2015.014","DOIUrl":"https://doi.org/10.4322/APA.2015.014","url":null,"abstract":"The main objective of this work was to investigate interannual changes of phytoplankton structure as part of a long-term monitoring program in Admiralty Bay, Antarctic Peninsula. Based on microscopic analysis, phytoplankton taxonomic composition and biomass are investigated since 2009. This report presents results from the 2009/2010 and 2010/2011 summer surveys regarding the phytoplankton size-structure and biomass. Four scenarios were proposed in our study for environmental conditions and phytoplankton community: 1) 2009/2010 Early Summer; diatom growth was promoted by high Si:N, but inhibited by low N:P and low temperature, 2) 2009/2010 Late Summer; diatom growth was inhibited by low N:P and low Si:N, and high temperature and low N:P promoted dinoflagellates growth, due to their low optimum N:P ratios compared to diatoms; 3) 2010/2011 Early Summer; diatom growth was promoted by high N:P, high Si:N and high temperature and 4) 2010/2011 Late Summer; blooms of chain-forming diatoms (e.g. Thalassiosira spp.), favoured by high Si:N and high temperature, and it could explain the drastic reduction both in nitrate and silicate. The microplankton community of Admiralty Bay presented a high variability during the studied period that was clearly dictated by environmental factors. The time window covered by this study gives us only a glimpse of the direction of long term changes that the Antarctic environment might be experiencing. A more complete picture of such trends relies heavily on the continuity of the long-term monitoring program.","PeriodicalId":169975,"journal":{"name":"INCT-APA Annual Activity Report","volume":"175 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132219157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Salazar, Geyze Magalhães de Faria, Tais Maria de Souza Campos, A. G. Dalto
{"title":"Harpacticoida Copepod Associated to Macroalgae Himantothallus Grandifolius (Ochrophyta, Desmarestiaceae) from Admiralty Bay (King George Island, South Shetlands Islands, Maritime Antarctica)","authors":"R. Salazar, Geyze Magalhães de Faria, Tais Maria de Souza Campos, A. G. Dalto","doi":"10.4322/APA.2014.114","DOIUrl":"https://doi.org/10.4322/APA.2014.114","url":null,"abstract":"is research work is a pioneer study related to the Harpacticoida Copepod species of the phytal environment of Antarctica, contributing to the knowledge of the biodiversity of copepods, associated to the macroalgae of Admiralty Bay, especially those of the Harpacticoida Order. Samples of the four genus types of Harpacticoida Copepod were found in a macroalgae (Himantothallus grandifolius) especially in its appressoria, collected in the melt water area of Admiralty Bay, King George Island, Archipelago, South Shetlands, Antarctica: Stygonitocrella (Ameiridae Family), Porcellidium (Porcellidiidae Family), Alteutha potter (Peltidiidae Family), Tisbisoma (Paramesochridae Family). e copepods found in this study possess adaptation qualities that may facilitate the exploration of macroalgae, such as: epibenthic body format, which allows greater swimming capacity or a dorso-ventrally attened body, with prehensile rst pair of legs or with a large maxilliped subchelate, the latter being adaptations to be able to x itself to thalloid surfaces, in locations with strong water currents. e genus Porcellidium and the Paramesochridae Family are frequently found associated to macroalgae. Alteutha potter is described in literature as planktonic. However, we suggest that the specie can be benthonic and is capable of migrating to zooplankton. Stygonitocrellaé is described as a species of continental and subterranean waters. e fact that algae have been found at just 15m depth with strong water melt current can help explain its presence. e identi cations continue underway and include analysis of phytal samples of other macroalgae collected in the Admiralty Bay from 2010 to 2011.","PeriodicalId":169975,"journal":{"name":"INCT-APA Annual Activity Report","volume":"11 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132241451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. N. Corbisier, P. F. Gheller, M. Ujikawa, S. Bromberg, M. Petti
{"title":"Monitoring the impact of human activities in admiralty bay, King George Island, antarctica: preliminary results of the meiofauna community","authors":"T. N. Corbisier, P. F. Gheller, M. Ujikawa, S. Bromberg, M. Petti","doi":"10.4322/APA.2014.045","DOIUrl":"https://doi.org/10.4322/APA.2014.045","url":null,"abstract":"Meiofauna is a component of the marine benthos widely used in environmental impact studies, especially in coastal areas. A monitoring program of Admiralty Bay has been underway since 2008 (INCT-APA/CNPq), and in the summer of 2010, the meiofauna and the phytodetritus were sampled at two sites in three areas of Martel Inlet (CF, UP, BP) and at one area in Mackellar Inlet (RE). Densities were in the range of those found in previous studies in the bay and did not differ significantly between the eight sampling sites. Nevertheless lower densities ( 5,000 inds. 4.9 cm 2 ) were found at Ullmann Point (UP) and at one site in Botany Point (BP1). Nematodes were the dominant meiofauna group. A change in the meiobenthic community structure was detected at the site under the sewage outfall influence (CF1: low density, different composition), suggesting some influence of human activities on the benthic system in front of the Brazilian Station.","PeriodicalId":169975,"journal":{"name":"INCT-APA Annual Activity Report","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114983718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Franco, R. Duarte, A. Bendia, C. R. Nakayama, V. Pellizari
{"title":"COMPARISON OF MICROBIAL COMMUNITY STRUCTURE IN COASTAL MARINE SEDIMENTS OF THREE AUSTRAL SUMMERS IN ADMIRALTY BAY, KING GEORGE ISLAND","authors":"D. Franco, R. Duarte, A. Bendia, C. R. Nakayama, V. Pellizari","doi":"10.4322/APA.2016.012","DOIUrl":"https://doi.org/10.4322/APA.2016.012","url":null,"abstract":"","PeriodicalId":169975,"journal":{"name":"INCT-APA Annual Activity Report","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115313581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}