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194451
電子期刊
Angel eBorja, and Theo ePrins, and Nomiki eSimboura, and Jesper H. Andersen, and Torsten eBerg, and João Carlos Marques, and Joao M. Neto, and Nadia ePapadopoulou, and Johnny eReker, and Heliana eTeixeira, and Laura eUusitalo
Assessing the environmental status of marine ecosystems is useful when communicating key messages to policymakers or the society, reducing the complex information of the multiple ecosystem and biodiversity components and their important spatial and temporal variability into manageable units. Taking into account the ecosystem components to be addressed (e.g. biological, chemical, physical), the numerous biodiversity elements to be assessed (e.g. from microbes to sea mammals), the different indica...
關鍵字: marine
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 415566
194452
電子期刊
O. Aumont, and M. van Hulten, and M. Roy-Barman, and J.-C. Dutay, and C. Éthé, and M. Gehlen
The marine biological carbon pump is dominated by the vertical transfer of particulate organic carbon (POC) from the surface ocean to its interior. The efficiency of this transfer plays an important role in controlling the amount of atmospheric carbon that is sequestered in the ocean. Furthermore, the abundance and composition of POC is critical for the removal of numerous trace elements by scavenging, a number of which, such as iron, are essential for the growth of marine organisms, including p...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 415565
194453
電子期刊
Luís F. Fávaro, and Fabrício de A. Frehse, and Rodrigo N. de Oliveira, and Roberto Schwarz Júnior
O presente estudo investigou a biologia reprodutiva do bagre amarelo Cathorops spixii (Agassiz, 1829) na Baía de Pinheiros, litoral do Paraná, Brasil. Os peixes foram coletados mensalmente no período de junho de 2003 a maio de 2004, com rede de arrasto de fundo. De cada exemplar foram tomados os dados de comprimento total, peso total, sexo e peso da gônada. As seis fases de desenvolvimento ovocitário (ovogênese) e os cinco estádios de desenvolvimento ovariano (escala de maturidade) foram determi...
關鍵字: estuarine
出版: Sociedade Brasileira de Zoologia
ISSN: 0101-8175
來源: DOAJ
System ID: 415564
194454
電子期刊
Luiz Laureno Mafra Junior, and Luciano Felício Fernandes, and Luís Antonio O. Proença
The estuarine complex of Paranaguá - ECP (South Brazil, 25º30'S, 48º30'W) is a large subtropical system, where pristine mangrove forests are still present, and fishery and aquaculture are important economic activities. This work investigated the occurrence of harmful algae in Paranaguá Bay, as well as the presence of toxins in the filter feeding mussel Mytella guyanensis, a local fishery resource. Samples along the Paranaguá sub-system were collected almost monthly from August 2002 to October 20...
關鍵字: algae
出版: Universidade de São Paulo
ISSN: 1679-8759
來源: DOAJ
System ID: 415563
194455
電子期刊
Stoler J, and Brodine SK, and Bromfield S, and Weeks JR, and Scarlett HP
Justin Stoler1, Stephanie K Brodine2, Simeon Bromfield3, John R Weeks1, Henroy P Scarlett41Department of Geography, San Diego State University, San Diego, CA, USA; 2Graduate School of Public Health, San Diego State University, San Diego, CA, USA; 3Mosquito Control Section, St Catherine Health Department, Spanish Town, Jamaica; 4Department of Community Health and Psychiatry, University of the West Indies at Mona, Kingston, JamaicaPurpose: Dengue fever has re-emerged as an increasingly significant...
關鍵字: pilot
出版: Dove Medical Press
ISSN: 1179-7282
來源: DOAJ
System ID: 415562
194456
電子期刊
Francisco Gerson Araújo, and Ilana Fichberg, and Benjamin Carvalho Teixeira Pinto, and Magna Galvão Peixoto
<abstract language="eng">The Paraíba do Sul is a major running water system in southeastern Brazil (22º24' -22º26'S; 43º43' -44º16' W), draining one of the most important industrial regions in the country. Because of its location, it has suffered a large amount of alteration due to discharges of urban and industrial effluents with direct influence in the ichthyofauna. The aim of this study is to up-to-date information on fish assemblage structure and its variation in the vicinity of a major indu...
關鍵字: fish
出版: Sociedade Brasileira de Zoologia
ISSN: 0101-8175
來源: DOAJ
System ID: 415561
194457
電子期刊
MORAES G., and AVILEZ I. M., and ALTRAN A. E., and BARBOSA C. C.
Oxygen of tropical freshwater environments fluctuates drastically. Eutrophic lakes and ponds of warm waters frequently reach very low oxygen concentrations. This is the most common habitat of the banded knife fish "tuvira" Gymnotus carapo. This electric fish is reported to present bimodal breathing to cope with low environmental oxygen. Biochemical responses can be also observed in fishes facing hypoxia but none were studied in tuvira. In the present study, haematological and metabolic changes w...
關鍵字: fish
出版: Instituto Internacional de Ecologia
ISSN: 1519-6984
來源: DOAJ
System ID: 415560
194458
電子期刊
Lili Carrera, and Noemí Cota, and Melissa Montes, and Enrique Mateo, and Verónica Sierralta, and Teresa Castro, and Angel Perea, and Cristian Santos, and Christian Catcoparco, and Carlos Espinoza
The present study describes the methodology used at IMARPE for the capture, acclimation and management of P. adspersus broodstock using recirculating aquaculture systems (RAS). RAS improved the water quality and maintained the environmental parameters during the acclimation period, temperature (17.2±1°C), oxygen (8.1±0.7 mg L-1), pH (7.3±0.2), ammonia (0.004±0.003 mg L-1), nitrite (0.52±0.2 mg L-1) and nitrate (3.45±2.6 mg L-1). Fish began to be fed normally from day 15 post-capture, once or twi...
關鍵字: aquaculture
出版: Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso
ISSN: 0718-560X
來源: DOAJ
System ID: 415559
194459
電子期刊
Shirley Martins, and Silvia Rodrigues Machado, and Marccus Alves
Foram analisados aspectos anatômicos e ultra-estruturais foliares de Cyperus maritimus Poir. visando identificar caracteres adaptativos ao ambiente de dunas litorâneas. Para isto, indivíduos ocorrentes nas dunas da Praia de Pipa, Rio Grande do Norte, Brasil, tiveram as folhas submetidas a diferentes análises: microscopia de luz, eletrônica de varredura e de transmissão. Em vista frontal, a epiderme possui tricomas unicelulares, corpos de sílica, cutícula estriada e depósitos de cera. Em secção t...
關鍵字: coastal
出版: Sociedade Botânica do Brasil
ISSN: 0102-3306
來源: DOAJ
System ID: 415558
194460
電子期刊
Moltira Tonganunt1*, and Korkiat Wongmanee2, and Sonchai Sartthai1, and Wilaiwan Chotigeat1, and Amornrat Phongdara1
A crustin gene (Amk1) was identified from a haemocyte library of the black tiger shrimp, Penaeus monodon. The full-length cDNA consists of 411 bp encoding a deduced precursor of 136 amino acids with a signal peptide of 17 aminoacids. Amk1 contains a hydrophobic and a Gly-rich region at the N-terminus and a 12 conserved cysteine domain (6-DSC) at the C-terminus. Transcripts of Amk1 are mainly detected in haemocytes and gills by RT-PCR analysis. A recombinant Amk1was overexpressed and purified fro...
關鍵字: shrimp
出版: Prince of Songkla University
ISSN: 0125-3395
來源: DOAJ
System ID: 415557
194461
電子期刊
Claudia Carvalho Pestana Silva, and Marlene Zannin, and Daisy Schwab Rodrigues, and Claudia Regina dos Santos, and Ieda Ana Correa, and Vidal Haddad Junior
Puffer fish can be poisonous due to the presence of the potent neurotoxins such as Tetrodotoxin (TTX) and Saxitoxin (STX) found in its tissues. The authors report 27 human poisonings from ingestion of puffer fish in patients treated at Toxicology Centers in the states of Santa Catarina and Bahia, Brazil, between 1984 and January 2009. Poisonings were classified as moderate (52%) and severe (33%), two deaths were observed. Early diagnosis is very important to ensure respiratory support.<br>Os bai...
關鍵字: fish
出版: Universidade de São Paulo
ISSN: 0036-4665
來源: DOAJ
System ID: 415556
194462
電子期刊
Oana Georgiana Dorojan, and Victor Cristea, and Mirela Crețu, and Lorena Dediu, and Iulia Rodica Grecu, and Săndița Plăcintă
Addition of natural additives (prebiotics, probiotics, phytobiotics) in fish feed is a benefic method because it leads to improved growth performance of fish reared in intensive production systems. Sea buckthorn is one of the most commonly phytobiotics used in aquaculture because of its antioxidant, antimicrobial, immunostimulant, anti-stress, cytoprotective, liver and tissue regeneration properties. Sea buckthorn berries are rich in vitamins (B, C, E and K), flavonoids, carotenoids, tocopherols...
關鍵字: sea
出版: Agroprint Timisoara
ISSN: 1841-9364
來源: DOAJ
System ID: 415555
194463
電子期刊
Christopher Majka
The aquatic Coleoptera (Gyrinidae, Haliplidae, Dytiscidae, Hydrophilidae, Elmidae, Dryopidae, Heteroceridae) of Prince Edward Island, Canada is surveyed. Seventy-two species are now known to occur on Prince Edward Island, 26 of which are added to the island's faunal list. Three species, Gyrinus aquiris LeConte, Oulimnius latiusculus (LeConte), and Helichus striatus LeConte, are removed since there are no voucher specimens or published records to substantiate their presence. The name Dineutus hor...
關鍵字: aquatic
出版: Pensoft Publishers
ISSN: 1313-2970
來源: DOAJ
System ID: 415554
194464
電子期刊
Alexandre Mioth Soares, and Guilherme Burigo Zanette, and Daniela Almeida de Souza, and Victor Barbosa Saraiva, and Maria Helena Campos Baeta Neves, and Manildo Marcião de Oliveira
Algae are relatively simple photoautotrophic eukaryotic organisms that do not possess tissues. The proliferation of certain microscopic algae can cause various effects which are perceived by humans as harmful. The objective of this study was to monitor the phytoplankton community in points near the mussel cultivation at Rasa Beach, with an emphasis on potential toxin-producing species. The samples were collected between February 2014 and March 2015. Seventy-nine taxa were recorded. Diatoms were ...
關鍵字: algae
出版: Essentia Editora
ISSN: 1981-6197
來源: DOAJ
System ID: 415553
194465
電子期刊
J.M. Artim, and P.C. Sikkel
Characterizing spatio-temporal variation in the density of organisms in a community is a crucial part of ecological study. However, doing so for small, motile, cryptic species presents multiple challenges, especially where multiple life history stages are involved. Gnathiid isopods are ecologically important marine ectoparasites, micropredators that live in substrate for most of their lives, emerging only once during each juvenile stage to feed on fish blood. Many gnathiid species are nocturnal ...
關鍵字: fish
出版: Elsevier
ISSN: 2213-2244
來源: DOAJ
System ID: 415552
194466
電子期刊
R. H. Mason, and M. Si, and J. Li, and C. Chou, and R. Dickie, and D. Toom-Sauntry, and C. Pöhlker, and J. D. Yakobi-Hancock, and L. A. Ladino, and K. Jones, and W. R. Leaitch, and C. L. Schiller, and J. P. D. Abbatt, and J. A. Huffman, and A. K. Bertram
Information on what aerosol particle types are the major sources of ice nucleating particles (INPs) in the atmosphere is needed for climate predictions. To determine which aerosol particles are the major sources of immersion-mode INPs at a coastal site in Western Canada, we investigated correlations between INP number concentrations and both concentrations of different atmospheric particles and meteorological conditions. We show that INP number concentrations are strongly correlated with the num...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 415551
194467
電子期刊
Aurore eRegaudie-De-Gioux, and Sébastien eLasternas, and Susana eAgustí, and Susana eAgustí, and Carlos eDuarte, and Carlos eDuarte
Numerous studies have compared the rates of primary production using various techniques at specific locations and times. However, these comparisons are local and cannot be used to compare or scale rates of primary production using different methods across ocean basins or seasonal time scales. Here, we quantify the range in rates of primary production derived using different techniques and provide equations that allow conversions of estimates between different methods. We do so on the basis of a ...
關鍵字: marine
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 415550
194468
電子期刊
R. Kyle
A considerable amount of work has been carried out on the mark and recapture of fish at Kosi bay (Kyle 1986). This resulted in the publication of data (Kyle & Robertson 1997) suggesting fairly low rates of exploitation by man but warning that further information was needed to confirm apparent levels. Fish marking has been ongoing (Kyle 2000) and results of more recent mark and recaptures are given here.
關鍵字: fish
出版: AOSIS
ISSN: 0075-6458
來源: DOAJ
System ID: 415549
194469
電子期刊
Ali Aberoumand, and Narges Mohamedi, and Maryem Zemanpoor
<!--[if gte mso 9]><xml> <o:DocumentProperties> <o:Version>14.00</o:Version> </o:DocumentProperties> <o:OfficeDocumentSettings> <o:RelyOnVML /> <o:AllowPNG /> </o:OfficeDocumentSettings> </xml><![endif]--> <p class="MsoNormal" style="mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: justify; line-height: 200%;">This aim of this research was to determine fatty acids and raw proximate composition and calorie value of fish Kijar in Iran. The fatty acids and proximate composition Ki...
關鍵字: fish
出版: HACCP Consulting
ISSN: 1337-0960
來源: DOAJ
System ID: 415548
194470
電子期刊
Cecilia Batmalle Kretz, and Doug W Bell, and Debra A Lomas, and Michael William Lomas, and Adam eMartiny, and Adam eMartiny
Phosphate (P) is an important nutrient potentially limiting for primary productivity, yet, we currently know little about the relationship between growth rate and physiological response to P limitation in abundant marine Cyanobacteria. Thus, the aim of this research was to determine how variation in growth rate affected the physiology of marine Synechococcus WH8102 and CC9311 when growing under high N:P conditions. Experiments were carried out in chemostats with a media input N:P of 441 and we e...
關鍵字: marine
出版: Frontiers Media S.A.
ISSN: 1664-302X
來源: DOAJ
System ID: 415547
194471
電子期刊
Raphael Grabowski, and Sabrina Morilhas Simões, and Antonio Castilho
This study evaluated the growth and population structure of Xiphopenaeus kroyeri in Babitonga Bay, southern Brazil. Monthly trawls were conducted from July 2010 through June 2011, using a shrimp boat outfitted with double-rig nets, at depths from 5 to 17 m. Differences from the expected 0.5 sex ratio were determined by applying a Binomial test. A von Bertalanffy growth model was used to estimate the individual growth, and longevity was calculated using its inverted formula. A total of 4,007 indi...
關鍵字: coastal
出版: Pensoft Publishers
ISSN: 1313-2970
來源: DOAJ
System ID: 415546
194472
電子期刊
R. A. Danilov, and N. G.A. Ekelund
Epilithic communities from brackish coastal water of the east coast of Sweden were studied in order to reveal their responses to different levels of UV-B radiation. The experiment was conducted for seven days in an indoor microcosm system. The epilithic communities were exposed daily to different doses of UV-B radiation: 1, 3, 5 and 7 hours, respectively. The intensity of the UV-B radiation used was similar to that in natural environments. After seven days clear shifts both in species compositio...
關鍵字: marine
出版: Consejo Superior de Investigaciones Científicas
ISSN: 0214-8358
來源: DOAJ
System ID: 415545
194473
電子期刊
V. FERNANDEZ-GONZALEZ, and P. SANCHEZ-JEREZ
Aquaculture facilities provide a suitable habitat for a wide group of marine species that are able to colonise and settle on artificial structures. This study aims to determine the composition of fouling communities in off-coast facilities, with special emphasis on motile epifauna and amphipods as a main group. Seventeen aquaculture sites were sampled along the Mediterranean coast, collecting samples by scraping fouling organisms directly from the ropes. Additionally, thirty publications were re...
關鍵字: aquaculture
出版: Hellenic Centre for Marine Research
ISSN: 1108-393X
來源: DOAJ
System ID: 415544
194474
電子期刊
Valéria Mendes, and Ana Luiza Portela-Castro, and Horácio Júlio-Júnior
Cytogenetic studies were performed on the species Apteronotus prope albifrons Linnaeus, 1766, Rhamphichthys hahni Meinken, 1937 and Brachyhypopomus gauderio Giora &amp; Malabarba, 2009, collected in the upper Paran&aacute; River floodplain, Porto Rico (PR), Brazil. Apteronotus prope albifrons showed a diploid number of 2n=24 chromosomes for both sexes and a karyotype formula of 14m+2sm+2st+6a (FN=42). Besides the standard karyotype, three specimens had one to three extra microchromosomes with in...
關鍵字: fish
出版: Pensoft Publishers
ISSN: 1993-0771
來源: DOAJ
System ID: 415543
194475
電子期刊
Azman Abdul Rahim, and Othman Ross
Eleven taxa including one new species of gammaridean amphipods are reported from the waters of Pulau Tioman. The presence of Tethygeneia sunda sp. n. represents the first record of the genus from the South China Sea. Additional material of Ampelisca brevicornis (Costa, 1853); Cymadusa vadosa Imbach, 1967; Paradexamine setigera Hirayama, 1984; Ericthonius pugnax (Dana, 1853); Leucothoe furina (Savigny, 1816); Microlysias xenokeras (Stebbing, 1918); Monoculodes muwoni Jo, 1990 are identified from ...
關鍵字: marine
出版: Pensoft Publishers
ISSN: 1313-2970
來源: DOAJ
System ID: 415542
194476
電子期刊
Seth M. White, and Casey Justice, and Denise A. Kelsey, and Dale A. McCullough, and Tyanna Smith
Land use legacies can have a discernible influence in present-day watersheds and should be accounted for when designing conservation strategies for riverine aquatic life. We describe the environmental history of three watersheds within the Grande Ronde subbasin of the Columbia River using General Land Office survey field notes from the 19th century. In the two watersheds severely impacted by Euro-American land use, stream channel widths—a metric representing habitat simplification—increased from...
關鍵字: aquatic
出版: BioOne
ISSN: 2325-1026
來源: DOAJ
System ID: 415541
194477
電子期刊
T. B. Kristensen, and T. Müller, and K. Kandler, and N. Benker, and M. Hartmann, and J. M. Prospero, and A. Wiedensohler, and F. Stratmann
Cloud optical properties in the trade winds over the eastern Caribbean Sea have been shown to be sensitive to cloud condensation nuclei (CCN) concentrations. The objective of the current study was to investigate the CCN properties in the marine boundary layer (MBL) in the tropical western North Atlantic, in order to assess the respective roles of inorganic sulfate, organic species, long-range transported mineral dust and sea-salt particles.<br><br> Measurements were carried out in June–Ju...
關鍵字: marine
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 415540
194478
電子期刊
Doo-Yeoun Cho, and Sam Swan, and Dave Kim, and Ju-Hwan Cha, and Won-Sun Ruy, and Hyung-Soon Choi, and Tae-Soo Kim
The painting process of large ships is an intense manual operation that typically comprises 9–12% of the total shipbuilding cost. Accordingly, shipbuilders need to estimate the required amount of anti-corrosive coatings and painting resources for inventory and cost control. This study aims to develop a software system which enables the shipbuilders to estimate paint area using existing 3D CAD ship structural models. The geometric information of the ships structure are extracted from the existing...
關鍵字: ship
出版: Elsevier
ISSN: 2092-6782
來源: DOAJ
System ID: 415539
194479
電子期刊
T. CEYHAN, and O. HEPKAFADAR, and Z. TOSUNOGLU
Catch rate, CPUE, biomass ratios and size selectivity from traditional longline and trammel nets of Turkish coastal small-scale fisheries were investigated in order to describe the Smooth-hound shark (Mustelus mustelus) fishery. The SELECT method was used to estimate the selectivity parameters of a variety of models for the trammel nets inner panel of 150 and 170 mm mesh sizes. Catch composition and proportion of the species were significantly different in longline and trammel nets. While mean C...
關鍵字: fishing
出版: Hellenic Centre for Marine Research
ISSN: 1108-393X
來源: DOAJ
System ID: 415538
194480
電子期刊
Michael Lau
This paper documents the result of a preliminary analysis on the influence of hull-ice friction coefficient on model resistance and power predictions and their correlation to full-scale measurements. The study is based on previous model-scale/full-scale correlations performed on the National Research Council - Ocean, Coastal, and River Engineering Research Center's (NRC/OCRE-RC) model test data. There are two objectives for the current study: (1) to validate NRC/OCRE-RC's modeling standards in r...
關鍵字: ship
出版: Elsevier
ISSN: 2092-6782
來源: DOAJ
System ID: 415537
194481
電子期刊
Monica V. Biondo
Millions of marine ornamental fishes are traded every year. Today, over half of the known nearly 4000 coral reef fish species are in trade with poor or no monitoring and demand is increasing. This study investigates their trade into and through Switzerland by analyzing import documents for live animals. In 2009, 151 import declarations with attached species lists for marine ornamental fishes from non-EU countries totaled 28 356 specimens. The 62% of the fishes remaining in Switzerland, comprised...
關鍵字: marine
出版: Elsevier
ISSN: 2351-9894
來源: DOAJ
System ID: 415536
194482
電子期刊
Nyambura Moremi, and Elizabeth V Manda, and Linda Falgenhauer, and Hiren Ghosh, and Can Imirzalioglu, and Mecky Matee, and Trinad Chakraborty, and Stephen E Mshana
Extended-Spectrum Beta-Lactamase (ESBL)-producing bacteria are a common cause of healthcare and community-associated infections worldwide. The distribution of such isolates in the environment and their presence in fish as a result of sewage contamination is not well-studied. Here we examined fish and environmental samples from Mwanza city for the presence of ESBL-producing bacteria. From 196 fish sampled from local markets, 26 (13.3 %) contained lactose-fermenting ESBL-producing bacteria, while ...
關鍵字: fish
出版: Frontiers Media S.A.
ISSN: 1664-302X
來源: DOAJ
System ID: 415535
194483
電子期刊
Nelson Colihueque V.
Chromosomal characterization of coho salmon samples from three fish farms in southern Chile (Polcura, Castro and Coyhaique) was carried out in order to compare their chromosome constitutions. All populations had a 2n = 60; however, Polcura and Coyhaique had a different chromosome arm number (NF = 110; 40m + 10sm + 10st/t) than Castro (NF = 108; 40m + 8sm + 12st/t). Variation in NF was due to chromosome pair 25, which was submetacentric in Coyhaique and Polcura, but subtelocentric in Castro. In a...
關鍵字: salmon
出版: Sociedade Brasileira de Genética
ISSN: 1415-4757
來源: DOAJ
System ID: 415534
194484
電子期刊
A. Atillah, and D. El Hadani, and H. Moudni, and O. Lesne, and C. Renou, and A. Mangin, and F. Rouffi
This study, a companion paper to Renou et al. (2011), focuses on the application of a GIS-based method to assess building vulnerability and damage in the event of a tsunami affecting the coastal area of Rabat and Salé, Morocco. This approach, designed within the framework of the European SCHEMA project (<a href="www.schemaproject.org"target="_blank">www.schemaproject.org</a>) is based on the combination of hazard results from numerical modelling of the worst case tsunami scenario (inundation dep...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1561-8633
來源: DOAJ
System ID: 415533
194485
電子期刊
Sarma C
關鍵字: sea
出版: Wolters Kluwer Medknow Publications
ISSN: 0301-4738
來源: DOAJ
System ID: 415532
194486
電子期刊
R. Marsh, and D. Desbruyères, and J. L. Bamber, and B. A. de Cuevas, and A. C. Coward, and Y. Aksenov
In a sensitivity experiment, an eddy-permitting ocean general circulation model is forced with realistic freshwater fluxes from the Greenland Ice Sheet, averaged for the period 1991–2000. The fluxes are obtained with a mass balance model for the ice sheet, forced with the ERA-40 reanalysis dataset. The freshwater flux is distributed around Greenland as an additional term in prescribed runoff, representing seasonal melting of the ice sheet and a fixed year-round iceberg calving flux, for 8.5 mode...
關鍵字: ocean
出版: Copernicus Publications
ISSN: 1812-0784
來源: DOAJ
System ID: 415531
194487
電子期刊
J. D. L. van Bleijswijk, and C. Whalen, and G. C. A. Duineveld, and M. S. S. Lavaleye, and H. J. Witte, and F. Mienis
This study characterizes the microbial community composition over Haas Mound, one of the most prominent cold-water coral mounds of the Logachev Mound province (Rockall Bank, NE Atlantic). We outline patterns of distribution vertically – from the seafloor to the water column – and laterally – across the mound – and couple these to mound topography and hydrography. Samples of water, sediment and <i>Lophelia pertusa</i> were collected in 2012 and 2013 from locations that were chosen based on high d...
關鍵字: coral
出版: Copernicus Publications
ISSN: 1726-4170
來源: DOAJ
System ID: 415530
194488
電子期刊
Giulia Cambiè, and Juan Antonio Camiñas, and Ramón Franquesa, and Toni Mingozzi
The southern coast of Ionian Calabria was recently recognized as the main nesting area of the loggerhead sea turtle Caretta caretta in Italy. The aim of this study was to characterize the fishing fleet in this area in terms of number of boats, economic situation, social aspects and impact on sea turtle specimens and target species. A multidisciplinary approach was essential to understand how the conservation problems of C. caretta are linked to various characteristics of the fishing fleet. Our d...
關鍵字: sea
出版: Consejo Superior de Investigaciones Científicas
ISSN: 0214-8358
來源: DOAJ
System ID: 415529
194489
電子期刊
Yong Chen, and Xinjun Chen, and Liuxiong Xu
Monitoring temporal and/or spatial variations in fish size-at-age data can often provide fisheries managers with important information about the status of fish stocks and therefore help them identify necessary changes in management policies. However, due to the multivariate nature of size-at-age data, commonly used single-age-based approaches ignore covariance between sizes of different age groups. Different results may therefore be derived when evaluating temporal variations using different age...
關鍵字: fish
出版: Consejo Superior de Investigaciones Científicas
ISSN: 0214-8358
來源: DOAJ
System ID: 415528
194490
電子期刊
Alcides Goularti Filho
A finalidade deste artigo é discutir a atuação do Estado e do planejamento na implantação, na trajetória de expansão e na crise da indústria da construção naval pesada no Brasil, entre 1959 e 1989. O texto está dividido em cinco tópicos. O primeiro discute a implantação da indústria naval pesada dentro dos objetivos políticos e estratégicos do Plano de Metas, seguido pela desaceleração entre 1963-1966, até a transformação da CMM e da SUNAMAM em 1969. Em seguida, evidencia-se o período de consoli...
關鍵字: naval
出版: Universidade Federal de Minas Gerais
ISSN: 0103-6351
來源: DOAJ
System ID: 415527
194491
電子期刊
P. Mehra, and M. Soumya, and P. Vethamony, and K. Vijaykumar, and T. M. Balakrishnan Nair, and Y. Agarvadekar, and K. Jyoti, and K. Sudheesh, and R. Luis, and S. Lobo, and B. Harmalkar
The study examines the observed storm-generated sea level variation due to deep depression (event 1: E1) in the Arabian Sea from 26 November to 1 December 2011 and a cyclonic storm "THANE" (event 2: E2) over the Bay of Bengal during 25–31 December 2011. The sea level and surface meteorological measurements collected during these extreme events exhibit strong synoptic disturbances leading to storm surges of up to 43 cm on the west coast and 29 cm on the east coast of India due to E1 and E2. E1 ge...
關鍵字: sea
出版: Copernicus Publications
ISSN: 1812-0784
來源: DOAJ
System ID: 415526
194492
電子期刊
Elisa Pellegrini, and Federico Floreani, and Marco Cortin, and Maria De Nobili
The flooding regime of saltmarshes strongly affects organic matter mineralisation, representing a unique situation where oxygen diffusion is either impeded by submersion or favoured by retreating water in regular cycles within the same day. Decomposition of Limonium vulgare Mill. residues in saltmarsh soils was evaluated measuring CO2 and CH4 emissions. Four different saltmarshes from the Grado Lagoon (Northern Adriatic Sea) were investigated. Soils were characterised by a similar vegetation (Sa...
關鍵字: tide
出版: University of Bologna
ISSN: 2039-9898
來源: DOAJ
System ID: 415525
194493
電子期刊
A. D. Robinson, and N. R. P. Harris, and M. J. Ashfold, and B. Gostlow, and N. J. Warwick, and L. M. O'Brien, and E. J. Beardmore, and M. S. M. Nadzir, and S. M. Phang, and A. A. Samah, and S. Ong, and H. E. Ung, and L. K. Peng, and S. E. Yong, and M. Mohamad, and J. A. Pyle
Short-lived halocarbons are believed to have important sources in the tropics, where rapid vertical transport could provide a significant source to the stratosphere. In this study, quasi-continuous measurements of short-lived halocarbons are reported for two tropical sites in Sabah (Malaysian Borneo), one coastal and one inland (rainforest). We present the observations for C<sub>2</sub>Cl<sub>4</sub>, CHBr<sub>3</sub>, CH<sub>2</sub>Br<sub>2</sub><sup>*</sup> (actually ~80% CH<sub>2</sub>Br<sub>...
關鍵字: coastal
出版: Copernicus Publications
ISSN: 1680-7316
來源: DOAJ
System ID: 415524
194494
電子期刊
Clélia Neves Afonso
The marine environment represents more than two thirds of our planet and although it is a possible source of natural products with bioactivity, is still largely unexplored, which represents a huge window of opportunity. During the last decades Marine Biotechnology has focused some of their efforts in the search and study of marine bacteria and fungi. These microorganisms have been a valuable tool in several scientific studies, basically because they grow with relative ease, achieving considerabl...
關鍵字: marine
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 415523
194495
電子期刊
Dorothee eKremers, and Aurélie eCélérier, and Benoist eSchaal, and Sylvie eCampagna, and Sylvie eCampagna, and Marie eTrabalon, and Marie eTrabalon, and Martin eBöye, and Martine eHausberger, and Alban eLemasson
A large part of the literature on sensory perception and behavior in dolphins is devoted to its well-developed vocal and echolocation abilities. In this review, we aim to augment current knowledge by examining the literature on dolphins’ entire Merkwelt (which refers to everything a subject perceives, creating a crucial part of the subject’s Umwelt). We will show that despite extensive knowledge on audition, aspects such as context relatedness, the social function of vocalizations or socio-sexua...
關鍵字: dolphin
出版: Frontiers Media S.A.
ISSN: 2296-701X
來源: DOAJ
System ID: 415522
194496
電子期刊
Jialong Jiao, and Huilong Ren, and Shuzheng Sun
Due to the increasing occurrence of maritime accidents and high-level requirements and modernization of naval wars, the concept of ship environment adaptability becomes more and more important. Therefore, it is of great importance to carry out an evaluation system for ship environment adaptability, which contributes to both ship design and classification. This paper develops a comprehensive evaluation system for ship environment adaptability based on fuzzy mathematics theory. An evaluation index...
關鍵字: ship
出版: Elsevier
ISSN: 2092-6782
來源: DOAJ
System ID: 415521
194497
電子期刊
Abner Carvalho-Batista, and Mariana Negri, and Leonardo Pileggi, and Antonio Castilho, and Rogério Costa, and Fernando Mantelatto
Artemesia longinaris is a marine shrimp endemic to the southwestern Atlantic and distributed from Atafona, Rio de Janeiro (Brazil) to Rawson, Chubut (Argentina). In recent years, this species has become an important target of the commercial fishery as a consequence of the decline in the fishery of more traditional and profitable marine shrimps. In addition, phenotypic variations have been documented in populations along its distribution. Therefore, investigations on the genetics of the fishing s...
關鍵字: fishery
出版: Pensoft Publishers
ISSN: 1313-2970
來源: DOAJ
System ID: 415520
194498
電子期刊
Colleen A Burge, and Morgan Elizabeth Mouchka, and C Drew Harvell, and Steven eRoberts
Coral reef communities are undergoing marked declines due to a variety of stressors including disease. The sea fan coral, Gorgonia ventalina, is a tractable study system to investigate mechanisms of immunity to a natural occurring pathogen. Functional studies in Gorgonia ventalina immunity indicate that several key pathways and cellular responses are involved in response to natural microbial invaders, although to date the functional and regulatory pathways remain largely un-described. This stud...
關鍵字: sea
出版: Frontiers Media S.A.
ISSN: 1664-042X
來源: DOAJ
System ID: 415519
194499
電子期刊
Dony Prasetyo, and Asda Laining, and Agus Oman Sudrajat
<p class="NoParagraphStyle"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle"><em> </em></p><p class="NoParagraphStyle">The aim of this study was to evaluate the effect of oodev on the gonadal maturation and characteristic of spermatophore and spermatozoa produced by the wild male black tiger shrimp against eyestalk ablation. The treatments were two doses of oodev injection at 0.5 (OD0.5) and 1 (OD1.0) mL/kg of body weight and a control was eyestalk ablation (AB). The male stock of tiger ...
關鍵字: shrimp
出版: Asosiasi Sains Akuakultur Indonesia
ISSN: 1412-5269
來源: DOAJ
System ID: 415518
194500
電子期刊
Eduardo Granja Bento
Estuarine systems support the life cycle stages of commercially important marine fish and are influenced by large and local-scale climatic patterns. Also, extreme events triggered by climate changes may influence the functioning of nursery grounds and recruitment for several fish species. In this study, performed in the Mondego estuary, Portugal, we used an 11-year database (2003-2013) for analyzing the variability in the population of a marine juvenile migrant fish, the European sea bass Dicent...
關鍵字: sea
出版: Frontiers Media S.A.
ISSN: 2296-7745
來源: DOAJ
System ID: 415517