過濾條件已變更

目前顯示的是舊的搜尋結果,重新按下搜尋按鈕以套用新的過濾條件

202351
電子期刊
J. E. Jonson, and J. P. Jalkanen, and L. Johansson, and M. Gauss, and H. A. C. Denier van der Gon
Land-based emissions of air pollutants in Europe have steadily decreased over the past two decades, and this decrease is expected to continue. Within the same time span emissions from shipping have increased in EU ports and in the Baltic Sea and the North Sea, defined as SECAs (sulfur emission control areas), although recently sulfur emissions, and subsequently particle emissions, have decreased. The maximum allowed sulfur content in marine fuels in EU ports is now 0.1%, as require...
關鍵字: shipping
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 423487
202352
電子期刊
B. O. Baranovsky, and I. A. Ivan’ko, and N. I. Zarubizhenko
In articlе the stuffs of researches of influence of a mode of illuminating intensity of coastal zone of a different exposition flood-land of lake Knyaginya (valley Samara) on composition of highest aqueous green and macrozoobentos macrophytes biogeocenose are submitted.
關鍵字: coastal
出版: Oles Honchar Dnipropetrovsk National University
ISSN: 2310-0842
來源: DOAJ
System ID: 423486
202353
電子期刊
Ileana Blanco, and Simone Pascuzzi, and Alexandros Sotirios Anifantis, and Giacomo Scarascia-Mugnozza
The intrinsic factor of variability of renewable energy sources often limits their broader use. The photovoltaic solar systems can be provided with a power back up based on a combination of an electrolyser and a fuel cell stack. The integration of solar hydrogen power systems with greenhouse heating equipment can provide a possible option for powering stand-alone greenhouses. The aim of the research under development at the experimental farm of Department of Agro-Environmental Sciences of the Un...
關鍵字: pilot
出版: PAGEPress Publications
ISSN: 1974-7071
來源: DOAJ
System ID: 423485
202354
電子期刊
S. TAS
A study of the abundance and composition of microphytoplankton was carried out in marine areas of the Datça and Bozburun Peninsulas between the years 2002 and 2004. Simultaneously measured physical (salinity, temperature, secchi disc) and chemical parameters (nutrients, chl-a, dissolved oxygen) were assessed together with microphytoplankton data. Seawater and plankton net samples were taken from 63 stations during 6 sampling periods. A total of 132 taxa belonging to 3 taxonomic classes was repor...
關鍵字: coastal
出版: Hellenic Centre for Marine Research
ISSN: 1108-393X
來源: DOAJ
System ID: 423484
202355
電子期刊
J. Renaudie
Marine planktonic diatoms are, today, among the world's main primary producers as well as the main organic carbon exporter to the deep sea despite the fact that they were a very minor component of the plankton at the beginning of the Cenozoic. They are also the main silica exporter to the deep sea, thus balancing global chemical weathering. This study reviews their global Cenozoic depositional pattern in order to understand the modality and the context of their rise to dominance, but also to und...
關鍵字: marine
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 423483
202356
電子期刊
Antonio D. Brescovit, and Andrés Taucare-Ríos, and Ivan L. F. Magalhaes, and Adalberto J. Santos
Loxosceles Heineken & Lowe, 1832 spiders are infamous for their medical importance, but a taxonomic picture of the genus is still far from complete. In this study, the Chilean species of Loxosceles are described and mapped. The males of Loxosceles surca Gertsch, 1967 and L. coquimbo Gertsch, 1967 are described for the first time. Three new species with narrow distributions are described from central and northern Chile: Loxosceles diaguita sp. nov. from the Antofagasta Region, L. pallalla sp. nov...
關鍵字: coastal
出版: Consortium of European Natural History Museums
ISSN: 2118-9773
來源: DOAJ
System ID: 423482
202357
電子期刊
Ezequiel Leonarduzzi, and Daniel R. Brown, and Ramiro P. Sánchez
Age and growth rates of the anchovy larvae (Engraulis anchoita) in Argentine waters were estimated by analysing daily growth increments in sagittal otoliths under light microscope. The samples were collected during 2000 on the Argentine coastal shelf using a Bongo net. A total of 251 larvae were analysed (size range 3.5 to 12.2 mm standard length). Length-at-age and standard length-otolith radius relationships were best described by linear models. We put forward the hypothesis of differential la...
關鍵字: coastal
出版: Consejo Superior de Investigaciones Científicas
ISSN: 0214-8358
來源: DOAJ
System ID: 423481
202358
電子期刊
Bazyli Czeczuga, and Bożena Mazalska, and Mirosława Orłowska
When studying zoosporic fungi in the waters of northeastern Poland tbe authors found new sites of a rare fungus - Sommerstorffia spinosa Arnaudow. Its growth was observed in water samples collected from limnologically different reservoirs, from the spring Jaroszówka, the oligotrophic type (Lake Białe), through mesotrophic (Lake Wigry) to the polytrophic type (pond Fosa with high content of hydrogen sulphide under ice cover). This fungus was also found in the river Biała, which flowing through Bi...
關鍵字: aquatic
出版: Polish Botanical Society
ISSN: 0001-625X
來源: DOAJ
System ID: 423480
202359
電子期刊
Gro-Ingunn Hemre, and Erik-Jan Lock, and Pål Asgeir Olsvik, and Kristin Hamre, and Marit Espe, and Bente Elisabeth Torstensen, and Joana Silva, and Ann-Cecilie Hansen, and Rune Waagbø, and Johan S. Johansen, and Monica Sanden, and Nini H. Sissener
Aiming to re-evaluate current recommendations for nutrient supplementations when Atlantic salmon are fed diets based on plant ingredients, two regression experiments, with parr and post-smolt, were conducted. A control diet was included to evaluate if ingredients supplied sufficient nutrients without any added nutrient package (NP). The nutrient package consisted of vitamins B, C, E, minerals, cholesterol, methionine, taurine and histidine. This paper focus on B-vitamins. In parr, growth, health...
關鍵字: salmon
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 423479
202360
電子期刊
Paul L. Jokiel, and Kuʻulei S. Rodgers, and Eric K. Brown, and Jean C. Kenyon, and Greta Aeby, and William R. Smith, and Fred Farrell
Nine coral survey methods were compared at ten sites in various reef habitats with different levels of coral cover in Kāne‘ohe Bay, O’ahu, Hawaiʻi. Mean estimated coverage at the different sites ranged from less than 10% cover to greater than 90% cover. The methods evaluated include line transects, various visual and photographic belt transects, video transects and visual estimates. At each site 25 m transect lines were laid out and secured. Observers skilled in each method measured coral cover ...
關鍵字: coral
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 423478
202361
電子期刊
Patrick Buerger, and Carlos Alvarez-Roa, and Karen D. Weynberg, and Sebastien Baekelandt, and Madeleine J.H. van Oppen
Black band disease (BBD) is a common disease of reef-building corals with a worldwide distribution that causes tissue loss at a rate of up to 3 cm/day. Critical for a mechanistic understanding of the disease’s aetiology is the cultivation of its proposed pathogen, filamentous cyanobacteria (genus Roseofilum). Here, we optimise existing protocols for the isolation and cultivation of Roseofilum cyanobacteria using a new strain from the central Great Barrier Reef. We demonstrate that the isolation ...
關鍵字: coral
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 423477
202362
電子期刊
J. Bamber, and R. Riva
The sea level contribution from glacial sources has been accelerating during the first decade of the 21st Century (Meier et al., 2007; Velicogna, 2009). This contribution is not distributed uniformly across the world's oceans due to both oceanographic and gravitational effects. We compute the sea level signature for ice mass fluxes due to changes in the gravity field, Earth's rotation and related effects for the nine year period 2000–2008. Mass loss from Greenland results in a relative sea level...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1994-0416
來源: DOAJ
System ID: 423476
202363
電子期刊
Michael Stat, and Megan J. Huggett, and Rachele Bernasconi, and Joseph D. DiBattista, and Tina E. Berry, and Stephen J. Newman, and Euan S. Harvey, and Michael Bunce
Abstract Effective marine management requires comprehensive data on the status of marine biodiversity. However, efficient methods that can document biodiversity in our oceans are currently lacking. Environmental DNA (eDNA) sourced from seawater offers a new avenue for investigating the biota in marine ecosystems. Here, we investigated the potential of eDNA to inform on the breadth of biodiversity present in a tropical marine environment. Directly sequencing eDNA from seawater using a shotgun app...
關鍵字: marine
出版: Nature Publishing Group
ISSN: 2045-2322
來源: DOAJ
System ID: 423475
202364
電子期刊
R. Ricker, and R. Ricker, and F. Girard-Ardhuin, and T. Krumpen, and C. Lique
<p>Sea ice volume export through the Fram Strait represents an important freshwater input to the North Atlantic, which could in turn modulate the intensity of the thermohaline circulation. It also contributes significantly to variations in Arctic ice mass balance. We present the first estimates of winter sea ice volume export through the Fram Strait using CryoSat-2 sea ice thickness retrievals and three different ice drift products for the years 2010 to 2017. The monthly export varies betw...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1994-0416
來源: DOAJ
System ID: 423474
202365
電子期刊
J. Hernandez-Lasheras, and B. Mourre
<p>The REP14-MED sea trial carried out off the west coast of Sardinia in June 2014 provided a rich set of observations from both ship-based conductivity–temperature–depth (CTD) probes and a fleet of underwater gliders. We present the results of several simulations assimilating data either from CTDs or from different subsets of glider data, including up to eight vehicles, in addition to satellite sea level anomalies, surface temperature and Argo profiles. The Western Mediterranean OPeratio...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1812-0784
來源: DOAJ
System ID: 423473
202366
電子期刊
Marian Yong-An Hu, and Katharina eMichael, and Cornelia M. Kreiss, and Meike eStumpp, and Sam eDupont, and Yung-Che eTseng, and Magnus eLucassen
CO2-driven seawater acidification has been demonstrated to enhance intestinal bicarbonate secretion rates in teleosts, leading to an increased release of CaCO3 under simulated ocean acidification scenarios. In this study, we investigated if increasing CO2 levels stimulate the intestinal acid–base regulatory machinery of Atlantic cod (Gadus morhua) and whether temperatures at the upper limit of thermal tolerance stimulate or counteract ion regulatory capacities. Juvenile G. morhua were acclimated...
關鍵字: ocean
出版: Frontiers Media S.A.
ISSN: 1664-042X
來源: DOAJ
System ID: 423472
202367
電子期刊
Ifan R Suhelmi, and Hari Prihatno
ABSTRAK Kota Semarang merupakan kota pesisir di Provinsi Jawa Tengah yang memiliki topografi datar pada wilayah laut yang biasa disebut dengan kota bawah dan bergunung pada bagian atasnya yang biasa disebut dengan kota atas. Kota bawah memiliki kerentanan yang tinggi terhadap genangan akibat kenaikan muka air laut, hal ini disebabkan olehkondisi topografi yang datar. Penelitian ini dilakukan untuk memberikan gambaran secara dinamik distribusi genangan akibat berbagai skenario kenaikan muka air ...
關鍵字: coastal
出版: Universitas Gadjah Mada
ISSN: 0854-5510
來源: DOAJ
System ID: 423471
202368
電子期刊
Stefano Vando, and Brigid Unim, and Salvatore A Cassarino, and Johnny Padulo, and Daniele Masala
<p><strong>Background:</strong> the aim of this pilot study was to evaluate whether proprioceptive-motor training using the Wii Balance Board (WBB) might improve postural sway in healthy subjects.</p><p><strong>Methods:</strong> twenty-five healthy subjects were trained for six weeks (two sessions per week) with 5 “video games”: Wii Fit Plus (WFP) program. Before and after training: Basic Balance, Single-leg Balance, Agility, Stability and Motion (lower limb: right-left and both leg) were measur...
關鍵字: pilot
出版: Prex S.r.l.
ISSN: 2282-0930
來源: DOAJ
System ID: 423470
202369
電子期刊
Christiane Kruse Fæste, and Karen R. Jonscher, and Maaike M.W.B. Dooper, and Wolfgang Egge-Jacobsen, and Anders Moen, and Alvaro Daschner, and Eliann Egaas, and Uwe Christians
The parasitic nematode Anisakis simplex occurs in fish stocks in temperate seas. A. simplex contamination of fish products is unsavoury and a health concern considering human infection with live larvae (anisakiasis) and allergic reactions to anisakid proteins in seafood. Protein extracts of A. simplex produce complex band patterns in gel electrophoresis and IgE-immunostaining. In the present study potential allergens have been characterised using sera from A. simplex-sensitised patients and prot...
關鍵字: fish
出版: Elsevier
ISSN: 2212-9685
來源: DOAJ
System ID: 423469
202370
電子期刊
Mariella Baldini, and Caroline Augusto Roque, and Melissa Marcon, and Andrea Maranho
Many projects have been developed in the last years for the conservation of sea turtles. Young green turtles (Chelonia mydas) often nest on the Brazilian coast. Because they nest in beaches along the coastline and islands, green turtles are susceptible to fishing and accidental ingestion of anthropogenic debris. Early detection of ingested debris is crucial for the survival of rescued sea animals. Ultrasound (US) has emerged as a viable imaging technique for visceral examination in veterinary me...
關鍵字: sea
出版: Tripoli University
ISSN: 2218-6050
來源: DOAJ
System ID: 423468
202371
電子期刊
Lisa Frank, and Matthias Lüpke, and Draginja Kostic, and Wolfgang Löscher, and Andrea Tipold
Abstract Background One of the most common chronic neurological disorders in dogs is idiopathic epilepsy (IE) diagnosed as epilepsy without structural changes in the brain. In the current study the hypothesis should be proven that subtle grey matter changes occur in epileptic dogs. Therefore, magnetic resonance (MR) images of one dog breed (Beagles) were used to obtain an approximately uniform brain shape. Local differences in grey matter volume (GMV) were compared between 5 healthy Beagles and ...
關鍵字: pilot
出版: BMC
ISSN: 1746-6148
來源: DOAJ
System ID: 423467
202372
電子期刊
Chi-Yu Tsai, and Yu-Jen Chang, and Te-Ju Wu, and Jui-Pin Lai, and Tzu-Ying Chen, and Shiu-Shiung Lin
Purpose: This retrospective study evaluated the volume of blood loss and operative time associated with management of nongrowing patients with cleft lip and palate (CLP) using bimaxillary orthognathic surgery (OGS) designed by a three-dimensional (3D) computer-assisted simulation and navigation for orthognathic surgery (CASNOS) system. Methods: This study included 53 skeletal Class III nongrowing patients with unilateral CLP who underwent bimaxillary OGS using either the CASNOS protocol (n = 30)...
關鍵字: navigation
出版: Elsevier
ISSN: 0929-6646
來源: DOAJ
System ID: 423466
202373
電子期刊
Niwadee Saheem, and Apiradee Lim, and Sarawuth Chesoh
This study aimed to develop statistical models for predicting fish standing crop in weight of specific freshwater fish based on fish fingerling density six months earlier. The monthly data in Na Thap river of southern Thailand, were collected between June 2005 and December 2010. Standing crop in weight for each native species varied with fingerling density 6 months previously. The trends of the fish standing crop in weights and fish fingerling densities depend on seasonal patterns of the are...
關鍵字: fish
出版: Prince of Songkla University
ISSN: 0125-3395
來源: DOAJ
System ID: 423465
202374
電子期刊
Bernarda Logar Zakrajšek, and Andrej Bren, and Gregor Sočan, and Jernej Pajek
The aim of this study was to assess psychometric characteristics of Slovenian versions of two self-administered questionnaires of health related quality of life SF-36v2® and ESRD-SCL-TM in kidney transplant patients. Fifty eight stable kidney transplant recipients from the only transplant centre in Slovenia responded to the questionnaires two times with 14–21 days in between. At the same time health measures related to kidney functioning and general health were checked. The results show acceptab...
關鍵字: pilot
出版: Slovenian Psychologists' Association
ISSN: 2350-5141
來源: DOAJ
System ID: 423464
202375
電子期刊
Park Chung-Hwan, and Park Hee-Seung, and Jang Ho-Yun, and Im Namkyun
Planing crafts were specifically designed to achieve relatively high speeds on the water. When a planing craft is running at high speed, dynamic pressure on the bottom makes the boat rise on the surface of the water. This reduces the area of the sinking surface of the boat to increase air resistance. Air resistance means the resistance that occurs when the hull and deck house over the surface of the water come in contact with the air current. In this paper, we carried out a CFD numerical analysi...
關鍵字: deck
出版: Elsevier
ISSN: 2092-6782
來源: DOAJ
System ID: 423463
202376
電子期刊
L. Zhang, and L. Zhao, and Z.-Q. Chen, and T. J. Algeo, and Y. Li, and L. Cao
The protracted recovery of marine ecosystems following the Permian–Triassic mass extinction may have been caused, in part, by episodic environmental and climatic crises during the Early Triassic, among which the Smithian–Spathian boundary (SSB) event is conspicuous. Here, we investigate the SSB event in the Shitouzhai section, Guizhou Province, South China, using a combination of carbonate carbon (δ<sup>13</sup>C<sub>carb</sub>) and carbonate-associated sulfate sulfur isotopes (&delta;<sup>34</s...
關鍵字: marine
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 423462
202377
電子期刊
Malcolm Daniel O'Toole, and Malcolm Daniel O'Toole, and Mary-Anne eLea, and Christophe eGuinet, and Robert eSchick, and Mark Andrew Hindell, and Mark Andrew Hindell
The spatio-temporal variability in marine resources influences the foraging behaviour and success of top marine predators. However, little is known about the links between these animals and ocean productivity, specifically, how plankton density influences their foraging behaviour. Southern elephant seals (Mirounga leonina) have two annual at-sea foraging trips: a two month post-breeding foraging trip (Nov – Jan) that coincides with elevated summer productivity; and an eight month post-moulting f...
關鍵字: marine
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 423461
202378
電子期刊
Philip L. Munday, and Megan J. Welch, and Bridie J.M. Allan, and Sue-Ann Watson, and Shannon J. McMahon, and Mark I. McCormick
Pioneering studies into the effects of elevated CO2 on the behaviour of reef fishes often tested high-CO2 reared fish using control water in the test arena. While subsequent studies using rearing treatment water (control or high CO2) in the test arena have confirmed the effects of high CO2 on a range of reef fish behaviours, a further investigation into the use of different test water in the experimental arena is warranted. Here, we used a fully factorial design to test the effect of rearing tre...
關鍵字: reef
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 423460
202379
電子期刊
Muhammmad Agus Suprayudi, and Dini Harianto, and Dedi Jusadi
<p>This experiment was conducted to evaluate the effect of phytase levels in the diet on the digestibility and growth performance of white shrimp <em>Litopenaeus vanname. </em>White shrimp were used in the trial with initial body weight of 3.8±0.01 g were reared in  aquarium (60×40×50 cm<sup>3</sup>) and filled with 60L treated sea water at a density of ten individu. Experimental diet were formulated in isonitrogeneous (36% protein) and isocaloric (3960 kcal/kg) to contain four levels of phytase...
關鍵字: shrimp
出版: Asosiasi Sains Akuakultur Indonesia
ISSN: 1412-5269
來源: DOAJ
System ID: 423459
202380
電子期刊
Kathryn Lynn Howe, and Cayla Whitney Dean, and John Kluge, and Alexander Victor Soloviev, and Aurelien Tartar, and Mahmood Shivji, and Susanne Lehner, and William Perrie
The damping of short gravity-capillary waves (Bragg waves) due to surfactant accumulation under low wind speed conditions results in the formation of natural sea slicks. These slicks are detectable visually and in synthetic aperture radar satellite imagery. Surfactants are produced by natural life processes of many marine organisms, including bacteria, phytoplankton, seaweed, and zooplankton. In this work, samples were collected in the Gulf of Mexico during a research cruise on the R/V 'F.G. Wal...
關鍵字: sea
出版: BioOne
ISSN: 2325-1026
來源: DOAJ
System ID: 423458
202381
電子期刊
J. J. Kelleway, and J. J. Kelleway, and N. Saintilan, and P. I. Macreadie, and P. I. Macreadie, and J. A. Baldock, and P. J. Ralph
Coastal salt marshes are dynamic, intertidal ecosystems that are increasingly being recognised for their contributions to ecosystem services, including carbon (C) accumulation and storage. The survival of salt marshes and their capacity to store C under rising sea levels, however, is partially reliant upon sedimentation rates and influenced by a combination of physical and biological factors. In this study, we use several complementary methods to assess short-term (days) deposition and med...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 423457
202382
電子期刊
José Martins Silva-Jr, and Flávio José de Lima Silva, and Cristina Sazima, and Iván Sazima
We present an overview of predator-prey and other trophic relationships of spinner dolphins (Stenella longirostris) around Fernando de Noronha Archipelago, off northeastern Brazil, with use of original data and a brief review of data published elsewhere. Records were made while snorkelling among the dolphins in daytime. Individual fish pursuit and coordinated school herding were the two hunting tactics recorded. Three small prey types (oceanic squids, fishes, and prawns) were recovered from vomi...
關鍵字: dolphin
出版: Consejo Superior de Investigaciones Científicas
ISSN: 0214-8358
來源: DOAJ
System ID: 423456
202383
電子期刊
Zoltan Szaloky, and Vinzenz Bammer, and Agnes Irma Gyorgy, and Lachezar Pehlivanov, and Michael Schabuss, and Tibor Eros
Environmental management needs well definable management units for the establishment of which typological approaches are often applied. However, inconsistent sampling strategies among countries can hinder large scale evaluation of aquatic assemblages for bioassessment purposes in very large transboundary rivers. We examined spatial changes in fish assemblages along the longitudinal profile of the Danube River, the second largest river in Europe, using a standardized sampling protocol, to define ...
關鍵字: fish
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 423455
202384
電子期刊
A. J. Stevens, and D. Clarke, and R. J. Nicholls, and M. P. Wadey
Coastal managers face the task of assessing and managing flood risk. This requires knowledge of the area of land, the number of people, properties and other infrastructure potentially affected by floods. Such analyses are usually static; i.e. they only consider a snapshot of the current situation. This misses the opportunity to learn about the role of key drivers of historical changes in flood risk, such as development and population rise in the coastal flood plain, as well as sea-level rise. <b...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1561-8633
來源: DOAJ
System ID: 423454
202385
電子期刊
Roberta eParolisi, and Antonella ePeruffo, and Silvia eMessina, and Mattia ePanin, and Stefano eMontelli, and Maristella eGiurisato, and Bruno eCozzi, and Luca eBonfanti
Knowledge of dolphin functional neuroanatomy mostly derives from post-mortem studies and non-invasive approaches (i.e. magnetic resonance imaging), due to limitations in experimentation on cetaceans. As a consequence the availability of well-preserved tissues for histology is scarce, and detailed histological analyses are referred mainly to adults. Here we studied the neonatal/juvenile brain in two species of dolphins, the bottlenose dolphin (Tursiops truncatus) and the striped dolphin (Stenella...
關鍵字: dolphin
出版: Frontiers Media S.A.
ISSN: 1662-5129
來源: DOAJ
System ID: 423453
202386
電子期刊
Maxim A. Dulebenets
Considering a substantial increase in volumes of the international seaborne trade and drastic climate changes due to carbon dioxide emissions, liner shipping companies have to improve planning of their vessel schedules and improve energy efficiency. This paper presents a novel mixed integer non-linear mathematical model for the green vessel scheduling problem, which directly accounts for the carbon dioxide emission costs in sea and at ports of call. The original non-linear model is linearized an...
關鍵字: sea
出版: Elsevier
ISSN: 2046-0430
來源: DOAJ
System ID: 423452
202387
電子期刊
Emmanuel T. Koutrakis, and Argyris A. Kallianiotis, and Athanassios C. Tsikliras
Species composition, abundance and diversity of fish larvae were assessed in the Strymonikos and Ierissos Gulfs (northern Aegean Sea, Greece). Both gulfs are affected by the freshwater input of the Rivers Strymon and Rihios; water depth does not exceed 80 m. Samples were collected using a bongo net sampler (250 µm mesh size) over a grid of 35 stations in six cruises between June 1997 and May 1998. A total of 48 taxa of fish larvae (36 species, 5 genera and 7 families) were identified. The majori...
關鍵字: coastal
出版: Consejo Superior de Investigaciones Científicas
ISSN: 0214-8358
來源: DOAJ
System ID: 423451
202388
電子期刊
Ricardo M. Landínez-García, and Edna J. Márquez
The Neotropical freshwater fish Ichthyoelephas longirostris (Characiformes: prochilodontidae) is a short-distance migratory species endemic to Colombia. This study developed for the first time a set of 24 polymorphic microsatellite loci by using next-generation sequencing to explore the population genetics of this commercially exploited species. Nineteen of these loci were used to assess the genetic diversity and structure of 193 I. longirostris in three Colombian rivers of the Magdalena basin. ...
關鍵字: fish
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 423450
202389
電子期刊
Warnet Jean-Michel, and Grynberg Alain, and Rousseau Delphine, and Martin Chantal, and Liang Hong, and Dutot Mélody, and Rat Patrice
<p>Abstract</p> <p>Background</p> <p>Olive oil and fish oils are known to possess beneficial properties for human health. We investigated whether different oils and fatty acids alone were able to decrease oxidative stress induced on corneal cells.</p> <p>Methods</p> <p>In our <it>in vivo </it>study, rats were fed with marine oils rich in polyunsaturated fatty acids (PUFA) or refined olive oil during 28 days. At the end of the protocol, corneas were analysed for their fatty acids composition to s...
關鍵字: marine
出版: BMC
ISSN: 1743-7075
來源: DOAJ
System ID: 423449
202390
電子期刊
Jarvie Daniel M, and Mango Frank D
<p>Abstract</p> <p>The recent report of low-temperature catalytic gas from marine shales took on additional significance with the subsequent disclosure of natural gas and low-temperature gas at or near thermodynamic equilibrium in methane, ethane, and propane. It is important because thermal cracking, the presumed source of natural gas, cannot generate these hydrocarbons at equilibrium nor can it bring them to equilibrium over geologic time. The source of equilibrium and the source of natural ga...
關鍵字: marine
出版: BMC
ISSN: 1467-4866
來源: DOAJ
System ID: 423448
202391
電子期刊
Famula Thomas R, and Ibarra Ana M
<p>Abstract</p> <p>Shrimp is one of few marine species cultured worldwide for which several selective breeding programs are being conducted. One environmental factor that can affect the response to selection in breeding programs is the density at which the shrimp are cultured (low-medium-high). Phenotypic plasticity in the growth response to different densities might be accompanied by a significant genotype by environment interaction, evidenced by a change in heritabilities between environments ...
關鍵字: shrimp
出版: BMC
ISSN: 0999-193X
來源: DOAJ
System ID: 423447
202392
電子期刊
Chen Charlotte, and Barfuss Michael HJ, and Pröschold Thomas, and Schagerl Michael
<p>Abstract</p> <p>Background</p> <p>The unbranched filamentous green alga <it>Spirogyra</it> (Streptophyta, Zygnemataceae) is easily recognizable based on its vegetative morphology, which shows one to several spiral chloroplasts. This simple structure falsely points to a low genetic diversity: <it>Spirogyra</it> is commonly excluded from phylogenetic analyses because the genus is known as a long-branch taxon caused by a high evolutionary rate.</p> <p>Results</p> <p>We focused on this genetic di...
關鍵字: alga
出版: BMC
ISSN: 1471-2148
來源: DOAJ
System ID: 423446
202393
電子期刊
Høiby Niels, and Moser Claus, and Thomsen Trine R, and Larsen Mette KS, and Nielsen Per H
<p>Abstract</p> <p>Background</p> <p>Catheters are the most common cause of nosocomial infections and are associated with increased risk of mortality, length of hospital stay and cost. Prevention of infections and fast and correct diagnosis is highly important.</p> <p>Methods</p> <p>In this study traditional semiquantitative culture-dependent methods for diagnosis of bacteria involved in central venous catheter-related infections as described by Maki were compared with the following culture-inde...
關鍵字: pilot
出版: BMC
ISSN: 1472-6890
來源: DOAJ
System ID: 423445
202394
電子期刊
Azevedo, E., and Caeiro, M. F., and Rebelo, R., and Barata, M.
The occurrence, diversity and similarity of marine fungi detected by the sum of direct and indirect observations in Fagus sylvatica and Pinus pinaster baits submerged at two Portuguese marinas are analyzed and discussed. In comparison with the data already published in 2010, the higher number of specimens considered in this study led to the higher number of very frequent taxa for these environments and substrata; the significant difference in substrata and also in fungal diversity detected at th...
關鍵字: marine
出版: Museu de Ciències Naturals de Barcelona
ISSN: 1578-665X
來源: DOAJ
System ID: 423444
202395
電子期刊
Mlava Grace, and Kongnyuy Eugene J, and Broek Nynke
<p>Abstract</p> <p>Background</p> <p>To study the feasibility of using criteria-based audit to improve a district referral system.</p> <p>Methods</p> <p>A criteria-based audit was used to assess the Salima District referral system in Malawi. A retrospective review of 60 obstetric emergencies referred from 12 health centres was conducted and compared with prior established standards for optimal referral of emergencies. Recommendations were made and implemented. Three months later, a re-audit was ...
關鍵字: pilot
出版: BMC
ISSN: 1472-6963
來源: DOAJ
System ID: 423443
202396
電子期刊
Stet René JM, and Martin Samuel AM, and Lubieniecki Krzysztof P, and Østergaard Anders E, and Davidson William S, and Secombes Christopher J
<p>Abstract</p> <p>Background</p> <p>Several novel immunoglobulin-like transcripts (NILTs) which have previously been identified in the salmonid species rainbow trout (<it>Oncorhynchus mykiss</it>) contain either one or two extracellular Ig domains of the V-type. NILTs also possess either an immunoreceptor tyrosine-based activating motif (ITAM) or immunoreceptor tyrosine-based inhibitory motifs (ITIMs) in the cytoplasmic region resulting in different signalling abilities. Here we report for the ...
關鍵字: salmon
出版: BMC
ISSN: 1471-2164
來源: DOAJ
System ID: 423442
202397
電子期刊
MS Hossain
Bangladesh is severely vulnerable to climate change and its devastation on coastal livelihood and food security has been substantiated. Climate induced hazards will lead to food insecurity directly and indirectly by affecting the coastal biophysical and socioeconomic states. This review article found the potential impacts on coastal agricultural, livestock and fisheries sectors those are the main source of livelihood and food security to coastal people. Furthermore, most of the rural coastal peo...
關鍵字: coastal
出版: IJARIT Research Foundation
ISSN: 2224-0616
來源: DOAJ
System ID: 423441
202398
電子期刊
Sunardi Sunardi, and Azrul Mahfurdz, and Shoffan Saifullah
Fisherman accidentally caught sea turtles in their fishnet. It could be dangerous for its population. This study measures the turtle target strength (TS) using modified echosounder. The result could be used to improve the efficiency of turtle repellent device. The experiment conducted in a hatchery fiber tank contained saline water. The Green were 1, 3, 12 and 18 years old. This study used three species of fish, which serves to distinguish the value between fish and sea turtles. TS of the animal...
關鍵字: fish
出版: Universitas Ahmad Dahlan
ISSN: 2442-6571
來源: DOAJ
System ID: 423440
202399
電子期刊
Ariana Hernández, and Hector S. Espinosa-Pérez, and Valeria Souza
Fish diets were analyzed to evaluate the dynamic trophs of the fish community in the Churince wetland system of the Cuatro Ciénegas, where the fauna consists of nine species: endemic, native and introduced. In nine sampling events (between February 2011 and May 2014) 556 specimens of all nine species were collected. Stomach contents were analyzed and the Relative Importance Index (IRI) was calculated. The feed coefficient (Q) of the diets and the accumulated trophic diversity (Hk), as well as th...
關鍵字: fish
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 423439
202400
電子期刊
Stephanie Cohen, and Thomas Krueger, and Maoz Fine
As the oceans become less alkaline due to rising CO2 levels, deleterious consequences are expected for calcifying corals. Predicting how coral calcification will be affected by on-going ocean acidification (OA) requires an accurate assessment of CaCO3 deposition and an understanding of the relative importance that decreasing calcification and/or increasing dissolution play for the overall calcification budget of individual corals. Here, we assessed the compatibility of the 45Ca-uptake and total ...
關鍵字: coral
出版: PeerJ Inc.
ISSN: 2167-8359
來源: DOAJ
System ID: 423438