INCT-APA Annual Activity Report最新文献_第9页

PRELIMINARY INFORMATION ON THE DIET OF THE IMPERIAL SHAG Phalacrocorax atriceps BREEDING ON ELEPHANT ISLAND, ANTARCTICA 在南极象岛上繁殖的皇羽长喙鸟食性的初步资料

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/APA.2016.003

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}

引用次数: 0

Introduction: Scientific Legacy of the INCT-APA 引言:INCT-APA的科学遗产

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/apa.2016.021

E. Rodrigues

引用次数: 0

Energetic Indicators for Planning and Projects in the Keller Peninsula 凯勒半岛规划和项目的积极指标

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/APA.2014.117

Tiago Malavazi de Christo, J. Fardin, D. Simonetti, C. Álvarez

引用次数: 0

Structure of the Cetacean Community Around the Antarctic Peninsula 南极半岛周围鲸类动物群落的结构

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/APA.2014.113

C. Z. Lazaneo, L. D. Rosa, E. Secchi

{"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}

引用次数: 0

Implementation of environmental management system in the brazilian antarctic base 巴西南极基地环境管理体系的实施

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/apa.2014.050

Alexandre de Avila Leripio, Fernanda Leite, R. Picolotto, M. Viana

引用次数: 0

INFLUENZA DETECTED IN Macronectes giganteus IN TWO ISLANDS OF SOUTH SHETLANDS, ANTARCTICA 在南极洲南设得兰群岛的两个岛屿上发现了流感

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/APA.2015.004

E. Petersen, M. Petry, E. Durigon, J. Araujo

引用次数: 1

MICROPLANKTON COMMUNITY STRUCTURE OF THE SHALLOW COASTAL ZONE AT ADMIRALTY BAY, ANTARCTICA: COMPARISON BETWEEN TWO CONSECUTIVE AUSTRAL SUMMERS 南极金钟湾浅海岸带浮游生物群落结构:两个连续夏季的比较

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/APA.2015.014

D. R. Tenenbaum, J. J. Barrera-Alba, M. Tenório

{"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}

引用次数: 1

Harpacticoida Copepod Associated to Macroalgae Himantothallus Grandifolius (Ochrophyta, Desmarestiaceae) from Admiralty Bay (King George Island, South Shetlands Islands, Maritime Antarctica) 金钟湾(南设得兰群岛乔治王岛)与大藻Himantothallus grandfolius(大藻门，desmarestius科)有关的桡足纲类

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/APA.2014.114

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}

引用次数: 0

Monitoring the impact of human activities in admiralty bay, King George Island, antarctica: preliminary results of the meiofauna community 人类活动对南极乔治王岛金钟湾影响的监测:小型动物群落的初步结果

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/APA.2014.045

T. N. Corbisier, P. F. Gheller, M. Ujikawa, S. Bromberg, M. Petti

引用次数: 1

COMPARISON OF MICROBIAL COMMUNITY STRUCTURE IN COASTAL MARINE SEDIMENTS OF THREE AUSTRAL SUMMERS IN ADMIRALTY BAY, KING GEORGE ISLAND 乔治王岛金钟湾南部三个夏季海岸海洋沉积物微生物群落结构比较

INCT-APA Annual Activity Report Pub Date : 1900-01-01 DOI: 10.4322/APA.2016.012

D. Franco, R. Duarte, A. Bendia, C. R. Nakayama, V. Pellizari

引用次数: 0