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196001
電子期刊
Elisa Bayraktarov, and Javier Alarcón-Moscoso, and Andrea Polanco F., and Christian Wild
The lionfish Pterois volitans is an invasive species throughout the Western Atlantic that disturbs functioning of local ecosystems such as coral reefs via fast and intense consumption of small fish and invertebrates. In 2009, lionfish populated the bays of Tayrona National Natural Park (TNNP), a biodiversity hotspot in the Colombian Caribbean that is strongly influenced by changing environmental conditions due to a rainy and dry season. So far, the spatial and temporal distribution of P. volitan...
關鍵字: coral
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 417117
196002
電子期刊
, Zainuddin, and , Haryati, and Siti Aslamyah
<p class="NoParagraphStyle" align="center"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle" align="center"><strong> </strong></p><p class="NoParagraphStyle">White shrimp <em>Litopenaeus vannamei</em> is one of penaeid shrimp which can be cultured either in traditional and advanced technology scale. One problem that commonly faced by pond farmer is the high price of feed with high protein content. This research was to identify the optimal level of carbohydrate and feeding frequency on gly...
關鍵字: shrimp
出版: Asosiasi Sains Akuakultur Indonesia
ISSN: 1412-5269
來源: DOAJ
System ID: 417116
196003
電子期刊
. Sabariah
<p>Recirculating aquaculture system (RAS) is one of aquaculture systems that aimed at providing good water quality as fish culture medium. The objective of this study was to examine the effect of water exchange rate in RAS on the growth and survival of <em>Collosoma</em> sp. Four different water exchange rates were tested, i.e. 0.003 ℓ/s, 0.005 ℓ/s, 0.008 ℓ/s, and 0.010 ℓ/s. <em>Collosoma</em> sp. larvae was stocked at a density of 50 fish/ℓ in plastic jar with a volume of 4ℓ. The observation sh...
關鍵字: aquaculture
出版: Asosiasi Sains Akuakultur Indonesia
ISSN: 1412-5269
來源: DOAJ
System ID: 417115
196004
電子期刊
Barbara J Campbell, and Shawn W Polson, and Lisa eZeigler Allen, and Shannon J. Williamson, and Charles K. Lee, and K Eric Wommack, and S. Craig Cary
Hydrothermal vents differ both in surface input and subsurface geochemistry. The effects of these differences on their microbial communities are not clear. Here, we investigated both alpha and beta diversity of diffuse flow-associated microbial communities emanating from vents at a basalt-based hydrothermal system along the East Pacific Rise (EPR) and a sediment-based hydrothermal system, Guaymas Basin. Both Bacteria and Archaea were targeted using high throughput 16S rRNA gene pyrosequencing ...
關鍵字: harbor
出版: Frontiers Media S.A.
ISSN: 1664-302X
來源: DOAJ
System ID: 417114
196005
電子期刊
Carole Baldwin, and Ross Robertson
Collecting reef-fish specimens using a manned submersible diving to 300 m off Cura&ccedil;ao, southern Caribbean, is resulting in the discovery of numerous new fish species. The new Liopropoma sea bass described here differs from other western Atlantic members of the genus inVIII, 13 dorsal-fin rays; a moderately indented dorsal-fin margin; a yellow-orange stripe along the entire upper lip; a series of approximately 13 white, chevron-shaped markings on the ventral portion of the trunk; and a red...
關鍵字: sea
出版: Pensoft Publishers
ISSN: 1313-2970
來源: DOAJ
System ID: 417113
196006
電子期刊
Bivas Biswas, and Mehar Chand Sharma, and Asit Ranjan Mridha, and Sameer Bakhshi
Background: Cysteine protease Cathepsin L is involved in bone remodeling and expressed in activated macrophages. It is highly expressed in metastatic tumor tissue, especially with bone metastases. Aims: We evaluated immunohistochemical expression of Cathepsin L in tumor cells and tumor-associated macrophages (TAMs) in chemo-naive Ewing sarcoma. Settings and Design: Retrospective evaluation of archived specimens of Ewing sarcoma. Materials and Methods: Immunohistochemical staining was performed o...
關鍵字: pilot
出版: Wolters Kluwer Medknow Publications
ISSN: 0377-4929
來源: DOAJ
System ID: 417112
196007
電子期刊
Pryscilla Moura Lombardi, and Fábio Lameiro Rodrigues, and João Paes Vieira
The aim of this study was to compare the influence of different haul distances of a codend beach seine on the catchability of fish in a surf zone. Two different surf zone sites (A and B) at the Cassino Beach (Rio Grande do Sul, Brazil) were sampled at three different distances, parallel to the beach (30, 60, and 90 m). Starting 40 m from the beach line, diagonal distances of approximately 50, 70, and 100 m were swept. The total CPUE and CPUA haul distances are compatible with a declining trend i...
關鍵字: fish
出版: Pensoft Publishers
ISSN: 1984-4670
來源: DOAJ
System ID: 417111
196008
電子期刊
Bruno Cavalcante Bellini, and Nerivania Nunes Godeiro
A new species of Tyrannoseira Bellini & Zeppelini, 2011 (Entomobryidae) is described and illustrated. Specimens of T. diabolica sp. nov. were collected in Barreira do Inferno, state of Rio Grande do Norte, Brazil. This is the fourth described species in the genus. All males of Tyrannoseira have the femora of the first pair of legs enlarged and slender tibiotarsi, both bearing several spine-like setae. Probably the closest species to T. diabolica sp. nov. is T. sex Bellini & Zeppelini, 2011. They...
關鍵字: coastal
出版: Pensoft Publishers
ISSN: 1984-4670
來源: DOAJ
System ID: 417110
196009
電子期刊
T.N. Corbisier
Species composition, faunal density, species diversity and zonation patterns of benthic macrofauna, as well as its relation to sediment characteristics were examined and compared in three sandy beaches on the polyhaline area at Santos estuarine system in the State of São Paulo. Samples were collected quarterly during one year (July/1977 - May/1978). Low, mean and high intertidal levels were sampled. Polyehaetes dominated the fauna, both in terms of numbers of species and numbers of individuals. ...
關鍵字: estuarine
出版: Universidade de São Paulo
ISSN: 1679-8759
來源: DOAJ
System ID: 417109
196010
電子期刊
Ana L. Ibáñez, and Antonio Rodríguez-Canto, and Jasmín Cortés-Martínez, and José L. García-Calderón
The use of alizarin red S (ARS) marked tilapias could provide valuable fisheries management information to evaluate fish stocking events and may facilitate aquaculture management practices. As a new technique in fishes, the aim of this study was to compare and evaluate the chemical marks produced in tilapia juveniles by ARS through two treatments: 1) 12 hours of immersion and 2) immersion after osmotic induction. This was analyzed at three concentrations: 50, 75 and 100mg/l, and in three structu...
關鍵字: fish
出版: Vicerractoría Investigación
ISSN: 0034-7744
來源: DOAJ
System ID: 417108
196011
電子期刊
Antonio Baena Extremera, and Pedro Jesús Ruiz Montero
The Fibromyalgia is a disease difficult to diagnose major illnesses that occur in people. The purpose of this communication is to present a program of aquatic exercise for people with this disease, indicating the key aspects that must be taken into account in the design of it.
關鍵字: aquatic
出版: FEADEF
ISSN: 1579-1726
來源: DOAJ
System ID: 417107
196012
電子期刊
M. N. Tsimplis, and A. G. P. Shaw
Hourly sea level data from tide gauges and a barotropic model are used to explore the spatial and temporal variability of sea level extremes in the Mediterranean Sea and the Atlantic coasts of the Iberian peninsula on seasonal time scales. Significant spatial variability is identified in the observations in all seasons. The Atlantic stations show larger extreme values than the Mediterranean Sea primarily due to the tidal signal. When the tidal signal is removed most stations have maximum values ...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1561-8633
來源: DOAJ
System ID: 417106
196013
電子期刊
R Hussain, and K Shipman, and A Haddon, and M Labib
關鍵字: fish
出版: Wolters Kluwer Medknow Publications
ISSN: 0022-3859
來源: DOAJ
System ID: 417105
196014
電子期刊
Andreea BRASOVAN, and Vlad CODREA, and Vasilica MÂNDROC, and Ramona CÂMPEAN, and Neli OLAH
The study presents data on content determination of calcium, magnesium and ascorbic acid in sea buckthorn fruits collected from Vulcan coal dump. The dump was never covered with soil or fertilizers containing azoth, potassium and phosphorus. The sea buckthorn was planted directly on the sterile and it has an important function in stabilizing the acclivity and fixing the atmospheric azoth with the nodosities on the roots. So, the sea buckthorn becomes widespread plant in coal dumps because it hel...
關鍵字: sea
出版: University of Oradea Publishing House
ISSN: 1224-5119
來源: DOAJ
System ID: 417104
196015
電子期刊
Andréa Figueiredo Procópio de Moura, and Mariana Del Ben Mayer, and Marisa Landgraf, and Alfredo Tenuta Filho
Durante as etapas de captura, manipulação e distribuição, o camarão precisa receber tratamentos adequados visando à manutenção das condições apropriadas de consumo. Com o intuito de avaliar a qualidade de camarão-rosa comercializado no município de São Paulo, amostras do crustáceo foram submetidas a testes de bases voláteis totais (BVT), substâncias reativas ao ácido tiobarbitúrico (TBARs), pH e análises microbiológicas (contagens totais de mesófilos e psicrotróficos). Estas provas, analisadas e...
關鍵字: shrimp
出版: Universidade de São Paulo
ISSN: 1516-9332
來源: DOAJ
System ID: 417103
196016
電子期刊
D. Müller, and D. Wip, and T. Warneke, and C. D. Holmes, and A. Dastoor, and J. Notholt
Mercury measurements at a coastal site in Nieuw Nickerie (5°56' N, 56°59' W), Suriname, provide the only continuous records of atmospheric mercury in the tropics. Here we evaluate observations of total gaseous mercury (TGM) during 2007. Nieuw Nickerie typically samples marine air from the Atlantic Ocean, with occasional influence from continental South America. Over the year, average concentrations are 1.40 ng m<sup>−3</sup>. As the intertropical convergence zone passes over Suriname twice each ...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 417102
196017
電子期刊
Ulven SM, and Holven KB
Stine M Ulven,1 Kirsten B Holven2 1Department of Health, Nutrition and Management, Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, 2Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, Oslo, Norway Background: The aim of this review is to summarize the effects of krill oil (KO) or fish oil (FO) on eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) incorporation in plasma phospholipids or membrane of red blood cells (RBC...
關鍵字: fish
出版: Dove Medical Press
ISSN: 1176-6344
來源: DOAJ
System ID: 417101
196018
電子期刊
Maria Luiza eSchmitz Fontes, and Larissa eDalpaz, and Denise eTonetta, and Regina Vasconcellos Antônio, and Maurício ePetrucio
To understand the dynamics of planktonic prokaryotes in a subtropical lake and its relationship with carbon, we conducted water sampling through four 48 h periods in Peri Lake for one year. Planktonic prokaryotes were characterized by the abundance and biomass of heterotrophic bacteria and of cyanobacteria (coccoid and filamentous cells). During all experiments, we measured wind speed, water temperature (WT), pH, dissolved oxygen (DO), precipitation, dissolved organic carbon (DOC), dissolved ino...
關鍵字: coastal
出版: Frontiers Media S.A.
ISSN: 1664-302X
來源: DOAJ
System ID: 417100
196019
電子期刊
Ryszard Jacek Traczyk
The Chaenocephalus aceratus were sampled in the summer between 1979 and 1990 at South Georgia Is. The problems of ageing Antarctic fish Channichthyidae are commonly known (Kock, 1989; Le_François, 2014; Campana, 2014) they have not scales and their bones undergo constant and large reduction (Żabrowski, 2000). It was found that the otoliths of C. aceratus show daily pattern of microincrements as otoliths of similar species Pseudochaenichthys georgianus, Champsocephalus gunnari and fishes both tem...
關鍵字: fish
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 417099
196020
電子期刊
Moslem Daliri, and Ehsan Kamrani, and S. Yousef Paighambari
An observer program was conducted to study and quantify the dimensions of illegal shrimp fishing in Hormozgan inshore waters (the northern Persian Gulf). Catches were sampled from 54 replicate landings of three boats from July to October 2014. The catch composition by weight included 55.37% shrimp and 44.63% by-catch (25.90% discards and 18.73% incidental catch). Forty-one species belonging to 27 families constituted the by-catch species, which Portunidae and Leiognathidae families had the highe...
關鍵字: fishing
出版: Elsevier
ISSN: 1687-4285
來源: DOAJ
System ID: 417098
196021
電子期刊
Carolina Correia Siliprandi, and Antoni Lombarte
Morphological characters of fishes are essential to evaluate the functional structure of assemblages, being morphological differences indicative of distinct ecological and adaptive strategies. The ecomorphology using morphospaces analyzes the structure of a fish assemblage through the values of intervals between homologous points positioned in anatomical structures of organisms phylogenetically related. These intervals can be quantified by morphogeometric and multivariate analyses. Seasonally du...
關鍵字: fish
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 417097
196022
電子期刊
Luana Granada, and Sofia Lopes
Integrated multi-trophic aquaculture (IMTA) is regarded as a suitable approach to limit aquaculture nutrients and organic matter outputs through biomitigation. Here, species from different trophic or nutritional levels are connected through water transfer. The co-cultured species are used as biofilters, and each level has its own independent commercial value, providing both economic and environmental sustainability. In order to better understand and optimize aquaculture production systems, dyna...
關鍵字: aquaculture
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 417096
196023
電子期刊
Lilian Pukk, and Markus Vetemaa, and Anti Vasemägi
Understanding the genetic population structure of commercially important fish species is crucial for developing biologically sound management and conservation strategies. Genetic information can be also useful for fighting against illegal fishing and fish trade. Here, we studied commercially important brackish and freshwater populations of Eurasian perch (Perca fluviatilis L.) in Estonia, to describe the genetic divergence among populations and evaluate the power of 16 microsatellite markers to ...
關鍵字: fish
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 417095
196024
電子期刊
Belén Martín Miguez, and L. Fariña-Busto, and F. G. Figueiras, and F. F. Pérez
Two phytoplankton succession events (September-October 1993 and March 1994) in the Ría de Vigo were studied in relation to their hydrodynamic context. By means of a circulation box model we calculated horizontal and vertical residual fluxes as well as budgets of phytoplankton associated with them. This allowed us to assess the importance of the two factors involved in the selection processes: one hydrodynamic (dependent upon physical dispersion) and one biogeochemical (involving all other proces...
關鍵字: estuarine
出版: Consejo Superior de Investigaciones Científicas
ISSN: 0214-8358
來源: DOAJ
System ID: 417094
196025
電子期刊
Lovreglio R, and Marciano A, and Patrone A, and Leone V
The percentage of forest fires of unknown origin, accounting in Italy for about 40% of the total number, hampers any attempt of efficacious prevention based on modification of causes. This work deals with the implementation of a simple though promising technique of motivation survey aimed at reducing such percentage, the Delphi method, a grouping technique using estimates from a panel of experts and feedback summaries from preceding responses for additional estimates. Sitting between knowledge a...
關鍵字: pilot
出版: Italian Society of Silviculture and Forest Ecology (SISEF)
ISSN: 1824-0119
來源: DOAJ
System ID: 417093
196026
電子期刊
M.L. Martins, and M. Tavares-Dias, and R.Y. Fujimoto, and E.M. Onaka, and D.T. Nomura
The effect of Goezia leporini Martins & Yoshitoshi, 2003 (Nematoda: Anisakidae) infection on the haematological characteristics of cultivated Leporinus macrocephalus (Osteichthyes:Anostomidae) was studied. Paleness of gills, kidneys, liver and heart, black spots on the kidney and accumulation of fluid in the visceral cavity, stomach and intestines were observed. Gall bladder content had pale and translucent aspect. Strong and slight positive correlations between number of nematodes and fish weig...
關鍵字: fish
出版: Universidade Federal de Minas Gerais
ISSN: 0102-0935
來源: DOAJ
System ID: 417092
196027
電子期刊
Mª Josefa Lafuente
Nuestro objetivo fue elaborar un instrumento para valorar la adaptación al embarazo y la vinculación prenatal. Se aplicó la escala EVAP a 116 embarazadas en el Hospital La Fe de Valencia (España), entre los 3 y los 9 meses de gestación. La escala presentó una estructura de seis factores: aproximación afectiva a través del pensamiento; aceptación del embarazo y adaptación a la maternidad; aproximación afectiva a través de la diferenciación del feto; experiencias infantiles y cuidado prenatal; apr...
關鍵字: pilot
出版: Fundación Index
ISSN: 1132-1296
來源: DOAJ
System ID: 417091
196028
電子期刊
Janete Noveras, and Kedma C Yamamoto, and Carlos EC Freitas
關鍵字: fish
出版: Instituto Nacional de Pesquisas da Amazônia
ISSN: 0044-5967
來源: DOAJ
System ID: 417090
196029
電子期刊
Temple Grandin
Facilities designed for intensively raised animals trained to lead are not appropriate for handling extensively raised animals unaccustomed to close contact with people. The author provides information on facility design for both intensively and extensively raised livestock. Non-slip flooring in handling facilities is essential for all livestock. Cleats must be spaced on loading ramps for trucks or ships so that the hooves of the animals fit easily between them. Cleats spaced too far apart cause...
關鍵字: sea
出版: Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale
ISSN: 0505-401X
來源: DOAJ
System ID: 417089
196030
電子期刊
Sinlapachai Senarat, and Wannee Jiraungkoorskul, and Jes Kettratad
The ovarian structure and reproductive health of short mackerel, Rastrelliger brachysoma in the upper Gulf of Thailand from non-breeding (October to November 2013) and breeding seasons (December 2013 to February 2014), were examined by histological and histochemical techniques. The results revealed that the ovary in this species was enclosed by the tunica albuginea. It was considered as an asynchronous type, which could be classified into seven stages based on its histological characteristic...
關鍵字: marine
出版: Prince of Songkla University
ISSN: 0125-3395
來源: DOAJ
System ID: 417088
196031
電子期刊
UIEDA V. S., and UIEDA W.
The species composition and spatial distribution of a fish assemblage were studied in three reaches of a river in the east coast of Brazil: a section of rapids (upper), another of water flowing on plain terrain (lowland) and the other of a mangrove environment. Two methods were employed with the purpose of estimating their effectiveness in naturalistic studies of tropical fish assemblages. One method consisted of underwater observations and the other was characterized by catches using gears such...
關鍵字: fish
出版: Instituto Internacional de Ecologia
ISSN: 1519-6984
來源: DOAJ
System ID: 417087
196032
電子期刊
Saikia S.K., and Nandi S.
Carbon (C) and phosphorous (P) regulation in aquatic food chains are transferred from lower to upper trophic levels primarily as polyunsaturated fatty acids (PUFAs) and C:P stoichiometry. The majority of C is transferred through algal based pathway. Microbial loop, though optionally contributes to C transfer, highly constrained by P limitation and bacterial predator type. Lack of essential PUFAs in bacteria is also responsible for its lo...
關鍵字: aquatic
出版: EDP Sciences
ISSN: 1961-9502
來源: DOAJ
System ID: 417086
196033
電子期刊
Fernando A. Abrunhosa, and Max W. P. Santana, and Marcus A. B. Pires
The early stages of the tropical reef lobster Enoplometopus antillensis Lütken, 1865 were described and illustrated in detail from specimens reared in the laboratory. Ovigerous females were captured in their habitat, at a depth of about 15 meters and transported to the laboratory. The larvae were reared in a recirculation water tank for approximately 15 days and then transferred to four 10 liters aquariums. The larvae were fed on Artemia sp. nauplii. Microalgae Dunaliella viridis was added daily...
關鍵字: reef
出版: Sociedade Brasileira de Zoologia
ISSN: 0101-8175
來源: DOAJ
System ID: 417085
196034
電子期刊
Milić Dubravka M., and Luković Jadranka Ž., and Zorić Lana N., and Merkulov Ljiljana S.
The microscopic analysis of leaf and stem in two populations of Salsola soda was carried out in order to examine mechanism of anatomical adaptations to environmental condition on saline habitats and to determine if there exists a morpho-anatomical differentiation between populations from maritime and inland saline area. Analysis included 26 quantitative characters of leaf and stem. The results showed that both populations exhibited halomorphic and xeromorphic adaptations, which...
關鍵字: maritime
出版: Matica srpska
ISSN: 0352-4906
來源: DOAJ
System ID: 417084
196035
電子期刊
Carmen Lucia Del Bianco Rossi-Wongtschowski, and Carolina Correia Siliprandi, and Marina Rito Brenha, and Silvia de Almeida Gonsales, and Cesar Santificetur, and André Martins Vaz-dos-Santos
The drawings, detailed pictures, precise descriptions and measurements that characterize otoliths must be made available for studies in various areas, including taxonomy, phylogeny, ecology, fisheries, paleontology, diversity, predator-prey relationships and modeling. The Collection of Teleostei Fish Otoliths of Southeastern-Southern Brazil (COSS-Brasil) of IOUSP contains 45,000 pairs of otoliths from 210 species. This publication is the first in a series that will constitute an atlas of Teleost...
關鍵字: marine
出版: Universidade de São Paulo
ISSN: 1679-8759
來源: DOAJ
System ID: 417083
196036
電子期刊
Mehdi eKhamassi, and Mehdi eKhamassi, and Mark D Humphries, and Mark D Humphries, and Mark D Humphries
Behaviour in spatial navigation is often organised into map-based (place-driven) versus map-free (cue-driven) strategies; behaviour in operant conditioning research is often organised into goal-directed versus habitual strategies. Here we attempt to unify the two. We review one powerful theory for distinct forms of learning during instrumental conditioning, namely model-based (maintaining a representation of the world) and model-free (reacting to immediate stimuli) learning algorithms. We extend...
關鍵字: navigation
出版: Frontiers Media S.A.
ISSN: 1662-5153
來源: DOAJ
System ID: 417082
196037
電子期刊
M. Holcomb, and A. L. Cohen, and D. C. McCorkle
The effects of nutrients and <i>p</i>CO<sub>2</sub> on zooxanthellate and azooxanthellate colonies of the temperate scleractinian coral <i>Astrangia poculata</i> (Ellis and Solander, 1786) were investigated at two different temperatures (16 °C and 24 °C). Corals exposed to elevated <i>p</i>CO<sub>2</sub> tended to have lower relative calcification rates, as estimated from changes in buoyant weights. Experimental nutrient enrichments had no significant effect nor did there appear to be any intera...
關鍵字: coral
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 417081
196038
電子期刊
Camila de Toledo Castanho, and Christopher J. Lortie, and Benjamin Zaitchik, and Paulo Inácio Prado
Empirical studies in salt marshes, arid, and alpine systems support the hypothesis that facilitation between plants is an important ecological process in severe or ‘stressful’ environments. Coastal dunes are both abiotically stressful and frequently disturbed systems. Facilitation has been documented, but the evidence to date has not been synthesized. We did a systematic review with meta-analysis to highlight general research gaps in the study of plant interactions in coastal dunes and examine i...
關鍵字: coastal
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 417080
196039
電子期刊
Dinar Tri Soelistyowati, and Aldilla Kusumawardhani, and Muhammad Zairin Junior
<p class="NoParagraphStyle" align="center"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle" align="center"><strong> </strong></p><p class="NoParagraphStyle">Abalone is one of sea-water aquaculture commodity that having relatively low in growth and survival. Interspesific hybridization between abalone <em>Haliotis asinina</em> and <em>Haliotis squamata</em> is required to produce hybrid seeds having a better phenotype inherited from their parents. Crossbreeding of abalone was done in the ...
關鍵字: abalone
出版: Asosiasi Sains Akuakultur Indonesia
ISSN: 1412-5269
來源: DOAJ
System ID: 417079
196040
電子期刊
Attila Ősi, and Mark T. Young, and András Galácz, and Márton Rabi
Based on associated and three-dimensionally preserved cranial and postcranial remains, a new thalattosuchian crocodyliform, Magyarosuchus fitosi gen. et sp. nov. from the Lower Jurassic (Upper Toarcian) Kisgerecse Marl Formation, Gerecse Mountains, Hungary is described here. Phylogenetic analyses using three different datasets indicate that M. fitosi is the sister taxon of Pelagosaurus typus forming together the basal-most sub-clade of Metriorhynchoidea. With an estimated body length of 4.67–4.8...
關鍵字: marine
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 417078
196041
電子期刊
Maura Maria Pezzato, and Antonio Fernando Monteiro Camargo
Egeria densa is a submerged aquatic macrophyte which, in Brazil, causes problems specially for electric energy generation. The purpose of this study was to evaluate the photosynthetic rate of E. densa in two rivers (Aguapeú and Mambu) with different limnological features, both located in the Itanhaém River Basin. This species is abundant in both rivers without causing damages to their multiple uses. Photosynthetic rates were analysed in February, May, August and November 1998 and limnological va...
關鍵字: aquatic
出版: Instituto de Tecnologia do Paraná (Tecpar)
ISSN: 1516-8913
來源: DOAJ
System ID: 417077
196042
電子期刊
Valdinar de Araújo Rocha Júnior, and Paulo Gentil, and Elke Oliveira, and Jake do Carmo
A identificação das peculiaridades de cada movimento e sua adequação aos objetivos do treinamento é uma tarefa que exige a interação de vários conhecimentos. Tal tarefa é fundamental para o sucesso nas diversas modalidades esportivas e programas de treinamento com fins de reabilitação e/ou estética. O objetivo do presente estudo foi comparar a atividade eletromiográfica (EMG) dos músculos peitoral maior (PM), deltóide anterior (DA) e tríceps braquial (TB) durante a execução dos exercícios supino...
關鍵字: deck
出版: Sociedade Brasileira de Medicina do Esporte
ISSN: 1517-8692
來源: DOAJ
System ID: 417076
196043
電子期刊
U. W. Humphries, and D. J. Webb
The Indonesian Throughflow is analysed in two runs of the OCCAM 1/4 degree global ocean model, one using monthly climatological winds and one using ECMWF analysed six-hourly winds for the period 1993 to 1998. The long-term model throughflow agrees with observations and the value predicted by Godfrey&apos;s Island Rule. The Island Rule has some skill in predicting the annual signal each year but is poor at predicting year to year and shorter term variations in the total flow, especially in El Niñ...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1812-0784
來源: DOAJ
System ID: 417075
196044
電子期刊
Elvio Giasson, and Robin Thomas Clarke, and Alberto Vasconcellos Inda Junior, and Gustavo Henrique Merten, and Carlos Gustavo Tornquist
Soil surveys are necessary sources of information for land use planning, but they are not always available. This study proposes the use of multiple logistic regressions on the prediction of occurrence of soil types based on reference areas. From a digitalized soil map and terrain parameters derived from the digital elevation model in ArcView environment, several sets of multiple logistic regressions were defined using statistical software Minitab, establishing relationship between explanatory te...
關鍵字: logistic
出版: Universidade de São Paulo
ISSN: 0103-9016
來源: DOAJ
System ID: 417074
196045
電子期刊
Johannes Oehm
The morphological identification of fish samples can be difficult, for example, when dealing with eggs, larvae, tissue samples, or dietary samples of piscivores. Hard parts such as otoliths, chewing pads, pharyngeal bones or scales can enable morphological identification if present. However, species-specific identification is often not possible, especially in species-rich groups like the cyprinids. Here, we present a two-step multiplex PCR system, tailored for rapid, sensitive, and specific mole...
關鍵字: fish
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 417073
196046
電子期刊
Luis A. Gomez-Puerta, and Omar Gonzales-Viera
Two species of ectoparasites were collected from a South American sea lion (Otaria flavescens) found stranded on the beaches of Chorrillos in Lima, Peru. The ectoparasites were identified as Antarctophthirus microchir (Phthiraptera) and Orthohalarachne attenuata (Acari). Some morphological characteristics are described in this report. The finding of these ectoparasites is the first records in Peru.
關鍵字: sea
出版: Universidad Nacional Mayor de San Marcos
ISSN: 1561-0837
來源: DOAJ
System ID: 417072
196047
電子期刊
J. Karvonen
We have studied the possibility of combining the high-resolution synthetic aperture radar (SAR) segmentation and ice concentration estimated by radiometer brightness temperatures. Here we present an algorithm for mapping a radiometer-based concentration value for each SAR segment. The concentrations are estimated by a multi-layer perceptron (MLP) neural network which has the AMSR-2 (Advanced Microwave Scanning Radiometer 2) polarization ratios and gradient ratios of four radiometer...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1994-0416
來源: DOAJ
System ID: 417071
196048
電子期刊
E. Schlosser, and E. Schlosser, and F. A. Haumann, and F. A. Haumann, and M. N. Raphael
In contrast to the Arctic, where total sea ice extent (SIE) has been decreasing for the last three decades, Antarctic SIE has shown a small, but significant, increase during the same time period. However, in 2016, an unusually early onset of the melt season was observed; the maximum Antarctic SIE was already reached as early as August rather than the end of September, and was followed by a rapid decrease. The decay was particularly strong in November, when Antarctic SIE exhibited a negativ...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1994-0416
來源: DOAJ
System ID: 417070
196049
電子期刊
Y. Carotenuto, and A. N. Antia, and S. Putzeys, and J. C. Nejstgaard, and P. Simonelli, and K. Suffrian
Microzooplankton grazing and algae growth responses to increasing <i>p</i>CO<sub>2</sub> levels (350, 700 and 1050 μatm) were investigated in nitrate and phosphate fertilized mesocosms during the PeECE III experiment 2005. Grazing and growth rates were estimated by the dilution technique combined with taxon specific HPLC pigment analysis. Microzooplankton composition was determined by light microscopy. Despite a range of up to 3 times the present CO<sub>2</sub> levels, there were no clear differ...
關鍵字: marine
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 417069
196050
電子期刊
Lucélia Donatti, and Edith Fanta
The Antarctic fish Notothenia coriiceps Richardson, 1844 lives in an environment of daily and annual photic variation and retina cells have to adjust morphologically to environmental luminosity. After seven day dark or seven day light acclimation of two groups of fish, retinas were extracted and processed for light and transmission electron microscopy. In seven day dark adapted, retina pigment epithelium melanin granules were aggregated at the basal region of cells, and macrophages were seen adj...
關鍵字: fish
出版: Sociedade Brasileira de Zoologia
ISSN: 0101-8175
來源: DOAJ
System ID: 417068