Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: 

RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 37
Primeira ... 12 ... Última
Imagem não selecionada

Imprime registro no formato completo
Statistics of the European and associated purse seine and baitboat fleets, in the Atlantic Ocean (1991-2017) ArchiMer
Pascual-alayon, P; Floch, Laurent; N'Gom, F; Dewals, P; Irie, D; Amatcha, Ah; Amande, M-j.
The document presents an overall summary of the fishing activities of the European and assimilated purse seine and bait boat fleets operating in the eastern Atlantic Ocean over the period 1991-2017. We describe the annual changes in fleet technical characteristics (carrying capacity, size), fishing effort (fishing and searching days), extent of fishing grounds, catches and nominal Catch per Unit Effort by species, as well as the average individual weight by species. Maps are also presented indicating the fishing effort distribution in the Atlantic, as well as the spatio-temporal distribution of European and assimilated purse seine catches in 2017 compared to previous years (2010-2016).
Tipo: Text Palavras-chave: Tuna fishery; Yellowfin; Skipjack; Purse seiners; Catch/effort; CPUE; Species composition; Size composition.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00490/60190/63533.pdf
Imagem não selecionada

Imprime registro no formato completo
Determining long‐term changes in a skate assemblage with aggregated landings and limited species data ArchiMer
Marandel, Florianne; Lorance, Pascal; Trenkel, Verena.
Sustainable fisheries management requires assessment of exploited populations and communities. Traditional fisheries stock assessment methods need species‐specific input data, which for skates have only recently become available in Europe. To overcome this limitation, a Bayesian multispecies biomass production model was developed. In addition to aggregated landings, input data are short time series with species‐specific information (landings and biomass indices). Applying the approach to four main skate species and a group of two skate species, all managed together in the Bay of Biscay (Northeast Atlantic), long‐term changes in the skate assemblage composition were identified. Since the 1990s, Leucoraja naevus became increasingly dominant, while the...
Tipo: Text Palavras-chave: Community changes; Fishing impacts; Multispecies management; Multispecies model; Rajiformes; Species composition; Vulnerable skates.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00589/70088/68138.pdf
Imagem não selecionada

Imprime registro no formato completo
Galling arthropod diversity in adjacent swamp forests and restinga vegetation in Rio Grande do Sul, Brazil Neotropical Entomology
Mendonça Jr,Milton De S; Piccardi,Hosana M F; Jahnke,Simone M; Dalbem,Ricardo V.
Galling arthropods create plant structures inside which they find shelter. Factors acting on galler diversity are still being discussed, with this fauna considered more diverse in xeric than mesic environments (higrothermic stress hypothesis, HSH), and also in more plant diverse sites. Here we compare galler abundance (N), equitability (E), species richness (S) and composition between adjacent restinga (xeric) and swamp forests (mesic) in Parque Estadual de Itapeva (29°21' S, 49°45' W), Rio Grande do Sul, southern Brazil. Five trails, two in swamp forest and three in restingas, were sampled four times each (January/December 2005). After an effort of 60h/person, 621 galled plant individuals belonging to 104 gall morphotypes were recorded. This suggests a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Hygrothermic stress; Gall; Species composition; Species richness.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000400008
Imagem não selecionada

Imprime registro no formato completo
From forests to cattail: how does the riparian zone influence stream fish? Neotropical Ichthyology
Casatti,Lilian; Teresa,Fabrício Barreto; Gonçalves-Souza,Thiago; Bessa,Eduardo; Manzotti,Angelo Rodrigo; Gonçalves,Cristina da Silva; Zeni,Jaquelini de Oliveira.
The aim of this study was to verify whether taxonomic and functional composition of stream fishes vary under three different preservation conditions of riparian zone: preserved (PRE), intermediate condition (INT), and degraded (DEG). Five stream stretches representing each condition were selected. Samples were taken from each stream in three occasions during the dry seasons from 2004 to 2007. Electro fishing (PRE and INT), sieves, dip nets, and hand seines (DEG) were used according to the characteristics of each sampled site. Overall, 46 species were registered. Differences in the taxonomic and functional species composition among groups were found, following the condition of riparian zones. The ichthyofauna recorded in the PRE was typical to pristine...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biotic homogenization; CWM analysis; Functional composition; Riparian forest; Species composition.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000100020
Imagem não selecionada

Imprime registro no formato completo
Sampling effort and fish species richness in small terra firme forest streams of central Amazonia, Brazil Neotropical Ichthyology
Anjos,Maeda Batista dos; Zuanon,Jansen.
Small streams are important components of the landscape in terra firme forests in central Amazonia and harbor a large number of fish species. Nevertheless, the lack of a common sampling protocol in studies of this ichthyofauna hinders comparisons among available results. This study evaluates how the length of stream reach sampled affects estimates of local fish species density in 1st, 2nd, and 3rd order streams, and proposes a mean minimum sampling length that best approximates the absolute number of species in a given stream segment. We sampled three streams in the Biological Dynamics of Forest Fragments Project's study sites, between May and August 2004. At each stream, one 1st order, one 2nd order, and one 3rd order segment was sampled. We sampled five...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fish diversity; Fish abundance; Stream size; Species composition; Species accumulation curves.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000100006
Imagem não selecionada

Imprime registro no formato completo
Composición y distribución de huevos y larvas de peces frente a la costa ecuatoriana. Septiembre 2007 OceanDocs
Elías, E; Calderón, G.; Luzuriaga, G.; Chavarría, J..
Entre el 04 y 13 de septiembre de 2007, se realizó el crucero T07-09-04HL, para determinar la composición de huevos y larvas de peces en la zona marine costera de la costa ecuatoriana. El área de estudio se subdividió en cuatro subáreas, dentro de las cuales se ubicaron 157 estaciones donde se realizaron arrastres verticales utilizando una red CalVET. Se registro un total de 15 940 huevos de peces.m-2, correspondientes a 11 órdenes, 19 familias, 18 géneros, 18 especies y además huevos en su primer estadio embrionario. También se identificaron 23 140 larvas.m-2, que correspondieron a 12 órdenes, 32 familias, 45 géneros, 45 especies, y organismos en estado de prelarva. La distribución de las áreas de abundancia de huevos y larvas de peces determine zonas de...
Tipo: Journal Contribution Palavras-chave: Fish eggs; Fish larvae; Species composition; Spatial distribution; Ichthyoplankton.
Ano: 2010 URL: http://hdl.handle.net/1834/4835
Imagem não selecionada

Imprime registro no formato completo
Depth-related diversity patterns of free-living nematode assemblages on two tropical rocky shores OceanDocs
Armenteros, Maickel; del Pino-Machado, Arturo; González-González, Susett; Ruiz-Abierno, Alexei; Pérez-García, José Andrés.
Depth-related spatial patterns of diversity have been described for free-living nematode assemblages at four depth horizons (intertidal, 1 m, 5 m and 10 m) at two subtidal rocky shores on the NW coast of Cuba: Bacunayagua and Miramar. The patterns were described based on species identity and biological traits. Species richness was similar across depth horizons ranging from 12 to 18 species; it was also similar between sites with 30 and 33 species for Bacunayagua and Miramar respectively. Diversity variation was higher between the intertidal and the subtidal horizons suggesting that microhabitat plays a key role. Depth was not an important driver of the diversity of nematodes on the studied rocky shores both in terms of species richness and diversity...
Tipo: Journal Contribution Palavras-chave: Α-diversity; Β-diversity; Biological traits; Nematodes; Species composition.
Ano: 2014 URL: http://hdl.handle.net/1834/5916
Imagem não selecionada

Imprime registro no formato completo
Collembolan community in broad-leaved forests and in conifer stands of Cryptomeria japonica in Central Japan PAB
Hasegawa,Motohiro; Fukuyama,Kenji; Makino,Shun'ichi; Okochi,Isamu; Tanaka,Hiroshi; Okabe,Kimiko; Goto,Hideaki; Mizoguchi,Takeo; Sakata,Tadashi.
Collembolan communities in conifer plantations (Japanese cedar, Cryptomeria japonica) and secondary deciduous broad-leaved forests of varying ages were investigated to determine the extent to which forest conversion (broad-leaved to coniferous) affects the species richness and assemblage composition of Collembola in central Japan. Density and total species richness of Collembola not differed between the broad-leaved and cedar forests except immediately after clear-cutting. The amount of forest-floor organic matter was larger in cedar forests and positively correlated with the species richness of detritus feeders. Species richness of fungal feeders and sucking feeders positively correlated with the species richness of forest-floor plants. There was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Japanese cedar; Species composition; Feeding habit; Undergrowth.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800012
Imagem não selecionada

Imprime registro no formato completo
Suppressive effects on weeds and dry matter yields of cover crops PAB
Ferreira,Alexandre Cunha de Barcellos; Borin,Ana Luiza Dias Coelho; Bogiani,Julio Cesar; Lamas,Fernando Mendes.
Abstract: The objective of this work was to evaluate the dry matter yield of cover crops and their suppressive effects on weeds. The experiment was carried out during three years in a cerrado area of the state of Goiás, Brazil, and consisted of 16 treatments with fallow and cover crops cultivated in single cropping and intercropping. Fallow allowed high weed infestation. Cover crops affected the composition of weeds, which showed greater diversity in fallow, followed by the Pennisetum glaucum 'BRS 1501' and Cajanus cajan crops. In the average of the three experimental years, the highest dry matter yield was observed for the treatments Panicum maximum (10,857 kg ha-1), Urochloa brizantha 'Piatã' (11,437 kg ha-1), U. ruziziensis (9,463 kg ha-1), and U....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fallow; Species composition; Straw mulch; Weed control.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500566
Imagem não selecionada

Imprime registro no formato completo
Similarity among periphyton algal communities in a lentic-lotic gradient of the upper Paraná river floodplain, Brazil Rev. Bras. Bot.
RODRIGUES,LILIANA; BICUDO,DENISE DE C..
Floristic comparison of periphyton communities from three systems with different hydrodynamic regimes (lentic, semilotic, and lotic) was carried out during high and low water periods on the Upper Paraná River floodplain. For each period and system, glass slides were sampled every two days during 18-day periods, and Eichhornia azurea Kunth petioles were sampled three times. A total of 228 species was collected, representing 12 classes, mainly diatoms and desmids. The highest species-richness was found in communities from lentic system and during high water. Species richness in the lotic system was more stable over succession and hydrological periods. Algal taxonomic structure in river community was clearly separated from the other two systems, with 43% of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Periphyton; Benthic algae; Species composition; Similarity; Tropical floodplain.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000300001
Imagem não selecionada

Imprime registro no formato completo
Temporal variation in the composition of ant assemblages (Hymenoptera, Formicidae) on trees in the Pantanal floodplain, Mato Grosso do Sul, Brazil Rev. Bras. entomol.
Soares,Stela de Almeida; Suarez,Yzel Rondon; Fernandes,Wedson Desidério; Tenório,Patrícia Mara Soares; Delabie,Jacques Hubert Charles; Antonialli-Junior,William Fernando.
Temporal variation in the composition of ant assemblages (Hymenoptera, Formicidae) on trees in the Pantanal floodplain, Mato Grosso do Sul, Brazil. In this paper we investigate how seasonal flooding influences the composition of assemblages of ants foraging on trees in the Pantanal of Mato Grosso do Sul. During the flood in the Pantanal, a large area is covered by floods that are the main forces that regulate the pattern of diversity in these areas. However, the effects of such natural disturbances in the ant communities are poorly known. In this sense, the objective of this study was to evaluate the effect of temporal variation in assemblages of ants foraging on trees in the Pantanal of Miranda. Samples were collected during a year in two adjacent areas,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ants; Flood and non-flood season; Insecta; Richness; Species composition.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262013000100013
Imagem não selecionada

Imprime registro no formato completo
Spatial variation of dung beetle assemblages associated with forest structure in remnants of southern Brazilian Atlantic Forest Rev. Bras. entomol.
Silva,Pedro Giovâni da; Hernández,Malva Isabel Medina.
ABSTRACT The Brazilian Atlantic Forest is one of the world's biodiversity hotspots, and is currently highly fragmented and disturbed due to human activities. Variation in environmental conditions in the Atlantic Forest can influence the distribution of species, which may show associations with some environmental features. Dung beetles (Coleoptera: Scarabaeinae) are insects that act in nutrient cycling via organic matter decomposition and have been used for monitoring environmental changes. The aim of this study is to identify associations between the spatial distribution of dung beetle species and Atlantic Forest structure. The spatial distribution of some dung beetle species was associated with structural forest features. The number of species among the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Beta diversity; Species composition; Species diversity; Spatial distribution; Tropical forest.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000100073
Imagem não selecionada

Imprime registro no formato completo
Patterns and breaking points in the distribution of benthic algae along the temperate Pacific coast of South America RChHN
MENESES,ISABEL; SANTELICES,BERNABE.
According to biogeographic studies made two decades ago, marine benthic algal species of the Pacific temperate coast of South America could be grouped into five components according to their geographic affinities. Each of these components was distributed differentially along the coastline between 4º and 56ºS and thus, their contribution to the overall flora varied depending on the latitude. Species composition changed at specific latitudes in such a way that three groups could be observed: from 4 to 6ºS, from 6 to 30ºS and from 30 to 55ºS. Since 1980, new information on marine algae along this coastline allows a review of the previous phytogeographic characterization. The presence/absence of algal species, separated by division and geographic affinity, was...
Tipo: Journal article Palavras-chave: Distribution patterns; Breaking points; Species composition; Temperate Pacific.
Ano: 2000 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400006
Imagem não selecionada

Imprime registro no formato completo
Calliphoridae (Diptera) from wild, suburban, and urban sites at three Southeast Patagonian localities: Calliphoridae (Diptera) de ambientes no habitados, suburbanos y urbanos en tres localidades del sudeste patagónico Rev. Soc. Entomol. Argent.
Mariluis,Juan C.; Schnack,Juan A.; Mulieri,Pablo P.; Patitucci,Luciano D..
Species composition, relative abundance, sex ratio and habitat preference of blowflies (Diptera: Calliphoridae) from Caleta Olivia, Puerto Deseado, and Puerto San Julián (Santa Cruz Province, Argentina) were studied during late spring and summer in 2004-2005. Results showed a higher prevalence of the exotic species, Calliphora vicina (Robineau-Desvoidy) and Phaenicia sericata (Meigen) at urban sites over the natives, Compsomyops fulvicrura (Robineau-Desvoidy) and Sarconesia chlorogaster (Wiedemann), which shows a strong preference for those sampling sites either not inhabited or less influenced by human activities. Sex ratio was female biased for all species, except for Sarconesia chlorogaster, which exhibited a male prevalence over females.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calliphoridae; Species composition; Relative abundance; Synanthropy; Southeastern Patagonia.
Ano: 2008 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0373-56802008000100010
Imagem não selecionada

Imprime registro no formato completo
Species composition and similarities among anuran assemblages of forest sites in southeastern Brazil Scientia Agricola
Bertoluci,Jaime; Brassaloti,Ricardo Augusto; Ribeiro Júnior,José Wagner; Vilela,Vívian Maria de Faria Nasser; Sawakuchi,Henrique Oliveira.
Neotropical forests show high anuran species richness, but some Brazilian forest formations, like cerradão, semideciduous forests and restingas, remain poorly known. The composition of anuran species were determined for four forest sites belonging to different biomes in southeastern Brazil, based on two complementary techniques (visual encounter survey and survey on breeding sites), both applied simultaneously. A total of 60 anuran species belonging to eight families was recorded. Species richness and levels of endemism were higher in the Atlantic rainforest site. Sites located in the Cerrado domain were more alike than those located in the Atlantic Forest Domain. Similarity in anuran species composition was negatively correlated to the geographical...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anurans; Species richness; Species composition; Conservation.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400007
Imagem não selecionada

Imprime registro no formato completo
ชนิด การแพร่กระจายและโครงสร้างชุมชนของสัตว์หน้าดินขนาดใหญ่ที่อาศัยในเขตน้ำขึ้นน้ำลงบริเวณหาดหินของ อ.ปะทิว จ.ชุมพร Thai Agricultural
Monthon Kaenmanee; Sujitra Samakraman; Nipavan Bussarawit; Sakanan Plathong.
Species composition, distribution and community structure of intertidal rocky shore macrobenthos in Pathiew, Chumporn were investigated quantitatively in August 2007 and February 2008. A total of 49 species of macrobenthos were identified with 1 species of sponge, 1 species of platyhelminth, 11 species of annelids, 15 species of molluscs and arthropods, 3 species of echinoderms, 1 species of bryozoan, and 2 species of chordates. A gastropod, Clypeomorus b. bifasciata, was the dominant taxon occurring with the high density at the mid and lower shore level whereas the densities of other macrobenthos species tended to increase with the distance from the supralittoral shoreline. Based on the results of SIMPER Analysis, two groups of communities were...
Tipo: Collection Palavras-chave: Macrobenthos; Species composition; Distribution; Community structure; Intertidal rocky shore; Chumporn province; สัตว์หน้าดินขนาดใหญ่; ชนิด; การแพร่กระจาย; โครงสร้างชุมชน; เขตน้ำขึ้นน้ำลง; หาดหิน; จ.ชุมพร อ.ปะทิว.
Ano: 2010 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5227
Imagem não selecionada

Imprime registro no formato completo
Calliphoridae (Diptera) da bacia do alto rio Urucu, Amazônia Central, Brasil Zoologia
Paraluppi,Norival D.
Calliphoridae of the region of the upper Urucu river basin, West of the city of Manaus, Amazonas State, Brazil, were sludied considering composition and abundance of the species, capturing 14729 specimen distributcd as follows: Cochliomyia macellaria (Fabricius) (12643), Chloroprocta idioidea (Robineau-Desvoidy) (1667), Phaenicia eximia (Wiedemann) (354), Hemilucilia semidiaphana (Rondani) (54), H. segmentaria (Fabricius) (6), Chrysomya pularia (Wiedemann) (1) e C. albiceps (Wiedemann) (1). The rcsults showthat Cochliomyia macellaria has a facility to adapt rapidly to an environment changed by man. The fact that was registered two specimen of Chrysomya Robineau-Desvoidy in highly isolated localilies contributed to showthc ability of thesc flics in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Calliphoridae; Central Amazônia; Invader species; Species composition.
Ano: 1996 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300003
Registros recuperados: 37
Primeira ... 12 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional