ML. Petesse, and M. Petrere Jr., and RJ. Spigolon

The temporal succession of fish communities allows evaluating the environmental conditions and the adaptation capacity of the fish species to anthropogenic stress in reservoirs. The fish community at Barra Bonita reservoir was sampled in two different periods of the year (dry and rainy) and in three different areas of the reservoir (fluvial, transition, and lentic). The species list was compared to another four lists, trying to detect the transformations of the fish community for the last 15 yea...

Estevão Rodrigues Medeiros, and Fernando Mayer Pelicice, and Carlos Sergio Agostinho, and Elineide Eugênio Marques

The present study investigated energy allocation patterns in three fish species from the family Hemiodontidae (Argonectes robertsi, Hemiodus microlepis, and Hemiodus unimaculatus), before and after the construction of Lajeado Dam, Tocantins River, Amazon basin. Changes in the use of energy (between somatic and reproductive processes) were indirectly evaluated by means of temporal variations in fish body condition, feeding activity, visceral fat storage, and reproductive effort. Fish were collect...

R. MURILLO-NAVARRO, and D. JIMENEZ-GUIRADO

A study was conducted on the population of Paracentrotus lividus (Lamarck, 1816) in a Mediterranean infralittoral bottom of southern of Spain to characterize the relationships between the macroalgal food ingested and the gut and gonad conditions of individuals. Over a full annual cycle (November 2008 to October 2009) composition of the gut content was analyzed monthly and seasonally, the gastrointestinal (GII), repletion (RI) and gonadosomatic (gonad) (GI) indices were calculated, and the stage ...

D. VERDIELL-CUBEDO, and A. RUIZ-NAVARRO, and M. TORRALVA, and R. MORENO-VALCÁRCEL, and F.J. OLIVA-PATERNA

Aphanius iberus is an endemic fish restricted to a few populations along the Spanish Mediterranean coastline and included in international red lists. Information on its ecological requirements is needed to implement effective recovery and conservation measures. This two-year study aimed to analyse the effect of habitat changes, mainly in water salinity and refuge availability, on the life-history traits and microhabitat use of an A. iberus population inhabiting a littoral wetland managed for sal...

Q.I. Garlet, and L.C. Pires, and D.T. Silva, and S. Spall, and L.T. Gressler, and M.E. Bürger, and B. Baldisserotto, and B.M. Heinzmann

(+)-Dehydrofukinone (DHF) is a major component of the essential oil of Nectandra grandiflora (Lauraceae), and exerts a depressant effect on the central nervous system of fish. However, the neuronal mechanism underlying DHF action remains unknown. This study aimed to investigate the action of DHF on GABAA receptors using a silver catfish (Rhamdia quelen) model. Additionally, we investigated the effect of DHF exposure on stress-induced cortisol modulation. Chemical identification was performed usi...

Zakaria A. Mohamed, and Abdulrahman M. Al-Shehri

In May 2010 a copious bloom of the raphidophyte <i>Heterosigma akashiwo</i> was observed for the first time in Red Sea waters off the coasts of Saudi Arabia.This bloom was confined to an area where water and phytoplankton flow freely between the sea and a shrimp farm. The phytoplankton density and physico-chemical characteristics of the sea water were therefore investigated weekly at bloom and non-bloom sites in order to gain insightinto the environmental factors prevailing at the bloom site and...

Welber Senteio Smith, and Miguel Petrere Jr

The Itupararanga Reservoir is located at the Sorocaba River Basin, São Paulo State, Brazil. Five cities use the waters of this reservoir for human consumption. Despite this intensive use of the water resource, no study has been undertaken on the ichthyofauna of this reservoir. Collections were performed in nine sampling stations, where each three were located in the riverine, transitional and lacustrine zones. Fish specimens were collected using eight monofilament gillnets of 10 m length each, w...

J. L. Pelegrí, and J. C. Castilla, and S. Ruiz-Halpern, and C. M. Duarte, and E. Mayol

Carbon dioxide and coupled CO₂ and O₂-driven compromises to marine life were examined along the Chilean sector of the Humboldt Current System, a particularly vulnerable hypoxic and upwelling area, applying the Respiration index (RI = log₁₀ <span style="border-bottom: 1px solid #000; vertical-align: 50%; font-size: .7em; color: #000;"><i>p</i>O₂</span><span style="margin-left: -1.8em; margin-right: .5em; vertical-align: -15%; font-size: .7em; color: #00...

Atanas Irikov, and Georgi Gerdzhikov

Fifteen samples with molluscs are collected from various habitats and regions of Morocco, located in the seashore zone, as well as the central and the eastern parts of the country. We recorded 21 terrestrial and 15 marine species of molluscs. New localities and new species for the fauna of Morocco and the African continent are reported for the first time.

Edson E.S. Sampaio

The analysis of electromagnetic fields caused by alternate or transient electric currents flowing along a cable in sea water has several applications. It supports the interpretation of electromagnetic geophysical data and safety procedures against the threat of sea mines. The approach to the problem employs a magnetic vector potential in the frequency domain due to a pulse source electric dipole, and performs Laplace and Hankel transforms and integration along the cable, to describe the variatio...

J. Havenhand, and C. Clemmesen, and V. Stiebens, and A. Y. Frommel

Ocean acidification, as a consequence of increasing marine <i>p</i>CO₂, may have severe effects on the physiology of marine organisms. However, experimental studies remain scarce, in particular concerning fish. While adults will most likely remain relatively unaffected by changes in seawater pH, early life-history stages are potentially more sensitive – particularly the critical stage of fertilization, in which sperm motility plays a central role. In this study, the effects of ocean a...

J. Lillestøl

Various issues concerning optimal feeding and optimal slaughtering are studied, following different formulations of the problem. We discuss separate and joint modeling, 'one-step look-ahead' and global procedures, deterministic and stochastic models. The price functions involved typically have jumps going from one weight category to the next. Special emphasis is given to two models, one with simplifying assumptions on the weight distribution, the other with a linear price approximation.

Maria Loreto Nazar, and Luiz Erlon Araujo Rodrigues, and Iracema Nascimento

This work studied the effects caused by five different formulae of gasoline on the stability of the lysosomes isolated from the liver of the tilapia fish (Oreochromis niloticus). The functional integrity of the lysosomal membranes was evaluated via the acid phosphatase activity. The results showed that there were significant changes in the stability of the lysosomes exposed to the presence of the hydrocarbons in the environment. Therefore, considering the method's simplicity, the sensitivity of ...

Bianca Soares de Oliveira Gonçalves, and Marcel Andreotti Musetti

Além do fato do programa Seis Sigma e a logística estarem em evidência no ambiente organizacional, soma-se a importância de se obter sucesso na implantação do programa, caracterizando como um fator crítico o alinhamento da estratégia dos projetos de melhoria. Sendo assim, este artigo propõe a sistematização do alinhamento da estratégia com o processo de seleção de projetos Seis Sigma. Dessa forma, esta pesquisa está estruturada, primeiramente, com uma breve descrição dos modelos conceituais util...

Antoni Merino, and Joaquín Ginés, and Paola Tuccimei, and Michele Soligo, and Joan J. Fornós

The abundance and variety of speleothems are undoubtedly among the remarkable features of Cova des Pas de Vallgornera, the longest cave system in Mallorca Island developed in the eogenetic karst of its southern coast. Due to the monotonous carbonate lithology of the area, most of the speleothems are composed of calcite and in a few cases aragonite, although other minerals are also represented (e.g., gypsum, celestine, barite.). However, in spite of the rather common mineralogy of the speleothems...

Rosana Machin, and Márcia Thereza Couto, and Cintia Cristina Silva Rossi

O trabalho analisa as representações de trabalhadores portuários avulsos do Porto de Santos-SP acerca das condições de trabalho, da relação trabalho-saúde e das estratégias adotadas para o cuidado em saúde a partir da perspectiva de gênero e das masculinidades. A pesquisa de natureza qualitativa desenvolveu-se na área de abrangência do Porto de Santos-SP. Foram entrevistados representantes de diferentes categorias de trabalhadores portuários, totalizando 13 entrevistas. O Porto é descrito pelos ...

Bolaños Cuellar Sergio

The advance in cultural-oriented perspectives in Translation Studies has sometimes played down the text linguistic nature of translation. A pilot study in teaching translation was carried out to make students aware of the text linguistic character of translating and help them to improve their translation skills, particularly with an emphasis on self-awareness and self-correcting strategies. The theoretical background is provided by the Dynamic Translation Model (2004, 2005) proposed by the autho...

E. E. Popova, and A. Yool, and A. C. Coward, and Y. K. Aksenov, and S. G. Alderson, and B. A. de Cuevas, and T. R. Anderson

Until recently, the Arctic Basin was generally considered to be a low productivity area and was afforded little attention in global- or even basin-scale ecosystem modelling studies. Due to anthropogenic climate change however, the sea ice cover of the Arctic Ocean is undergoing an unexpectedly fast retreat, exposing increasingly large areas of the basin to sunlight. As indicated by existing Arctic phenomena such as ice-edge blooms, this decline in sea-ice is liable to encourage pronounced growth...

C. Bassani, and C. Manzo, and F. Braga, and M. Bresciani, and C. Giardino, and L. Alberotanza

Hyperspectral imaging provides quantitative remote sensing of ocean colour by the high spectral resolution of the water features. The HICO™ (Hyperspectral Imager for the Coastal Ocean) is suitable for coastal studies and monitoring. The accurate retrieval of hyperspectral water-leaving reflectance from HICO™ data is still a challenge. The aim of this work is to retrieve the water-leaving reflectance from HICO™ data with a physically based algorithm, using the local microphysical properties of th...

J.D. Marcus Knight, and Shankar Balasubramanian

<p>Aquarium trade has been the source of many alien species being introduced into the natural waters of Chennai.  <em>Trichopsis vittata</em> and <em>Macropodus opercularis</em> are being reported for the first from Chennai. However,  contrary to the propagule pressure theory both these species are not common in the aquarium trade, raising speculations of inter-basin water transfer playing a role in introducing non-native species into an ecosystem. </p><div> </div>

Weihong Cui, and Yuan Sun, and Aiqiang Xu, and Rihong Gao, and Lianfeng Gong, and Li Zhang, and Mei Jiang

Objective: This study aimed to assess the seroprevalence of hepatitis E virus (HEV) infection and the potential risk factors for acquiring HEV infection in the seafood processing factories in Yantai City of Shandong Province, China. Methods: A cross-sectional study was conducted in five randomly selected seafood processing factories in Yantai City. Subjects were 15–66 years of age and were raw seafood processing workers, semi-finished products processing workers, and administrative staff, etc. E...

RC. Rouchy, and A. Moreau-Gaudry, and E. Chipon, and S. Aubry, and L. Pazart, and B. Lapuyade, and M. Durand, and M. Hajjam, and S. Pottier, and B. Renard, and R. Logier, and X. Orry, and A. Cherifi, and E. Quehen, and G. Kervio, and O. Favelle, and F. Patat, and E. De Kerviler, and C. Hughes, and M. Medici, and J. Ghelfi, and A. Mounier, and I. Bricault

Abstract Background Interventional radiology includes a range of minimally invasive image-guided diagnostic and therapeutic procedures that have become routine clinical practice. Each procedure involves a percutaneous needle insertion, often guided using computed tomography (CT) because of its availability and usability. However, procedures remain complicated, in particular when an obstacle must be avoided, meaning that an oblique trajectory is required. Navigation systems track the operator’s i...

Imogen H. Bell, and Sarah F. Fielding-Smith, and Mark Hayward, and Susan L. Rossell, and Michelle H. Lim, and John Farhall, and Neil Thomas

Abstract Background Smartphone-based ecological momentary assessment and intervention (EMA/I) show promise for enhancing psychological treatments for psychosis. EMA has the potential to improve assessment and formulation of experiences which fluctuate day-to-day, and EMI may be used to prompt use of therapeutic strategies in daily life. The current study is an examination of these capabilities in the context of a brief, coping-focused intervention for distressing voice hearing experiences. Metho...

Zhe Zhao, and Jinxin Liu, and Yiqin Deng, and Wen Huang, and Chunhua Ren, and Douglas R. Call, and Chaoqun Hu

Vibrio alginolyticus is a Gram-negative bacterium that is an opportunistic pathogen of both marine animals and people. Its pathogenesis likely involves type III secretion system (T3SS) mediated induction of rapid apoptosis, cell rounding and osmotic lysis of infected eukaryotic cells. Herein, we report that effector proteins, Val1686 and Val1680 from V. alginolyticus, were responsible for T3SS-mediated death of fish cells. Val1686 is a Fic-domain containing protein that not only contributed to c...

Niño Rebato, and Vikki Carr de los Reyes, and Ma. Nemia Sucaldito, and Flor D’Lynn Gallardo, and Julius Erving Ballera, and Irma Asuncion, and Kenneth Hartigan-Go

Introduction: Ciguatera fish poisoning (CFP) is common in tropical and subtropical waters. On 13 November 2015, eight Filipino seafarers from a cargo ship sailing in the Caribbean Sea experienced a range of symptoms after consuming a barracuda. Upon their return to the Philippines, an investigation was conducted to describe the cases. Methods: A case-series was conducted. A CFP case was defined as a previously well individual on the ship who developed at least one gastrointestinal symptom and a...

R. Sharma, and Tae-Wan Kim, and O.P. Sha, and S.C. Misra

Availability of economic and efficient energy resources is crucial to a nation's development. Because of their low cost and advancement in drilling and exploration technologies, oil and gas based energy systems are the most widely used energy source throughout the world. The inexpensive oil and gas based energy systems are used for everything, i.e., from transportation of goods and people to the harvesting of crops for food. As the energy demand continues to rise, there is strong need for inexpe...

Magdalena Blazewicz-Paszkowycz, and Karol Zemko

This paper presents a description of the new species Metatanais bipunctatus sp. n. found on coral reefs at two sites in Australia: Lizard Island (Queensland) and Ningaloo Reef (north-western Australia). The new species is the second member of the genus and it is morphologically almost identical to type species M. cylindricus Shiino, 1952, recorded from algae on the surface of ascidians or sponges in shallow waters off Seto (north-western coast of Japan). The new species was compared with the hol...

R. Kwok, and N. T. Kurtz, and L. Brucker, and L. Brucker, and A. Ivanoff, and T. Newman, and S. L. Farrell, and S. L. Farrell, and J. King, and S. Howell, and M. A. Webster, and J. Paden, and C. Leuschen, and J. A. MacGregor, and J. Richter-Menge, and J. Harbeck, and M. Tschudi

Since 2009, the ultra-wideband snow radar on Operation IceBridge (OIB; a NASA airborne mission to survey the polar ice covers) has acquired data in annual campaigns conducted during the Arctic and Antarctic springs. Progressive improvements in radar hardware and data processing methodologies have led to improved data quality for subsequent retrieval of snow depth. Existing retrieval algorithms differ in the way the air–snow (a–s) and snow–ice (s–i) interfaces are detected and localized in ...

Ross eCunning, and Ross eCunning, and Andrew C Baker

The performance and function of reef corals depends on the genetic identity of their symbiotic algal partners, with some symbionts providing greater benefits (e.g., photosynthate, thermotolerance) than others. However, these interaction outcomes may also depend on partner abundance, with certain total numbers of symbionts providing greater net benefit under certain conditions. We suggest that symbiont abundance is a fundamental aspect of the dynamic interface between reef corals and the abiotic ...

Marie-Emilie A Gauthier, and Jabin R Watson, and Sandie M Degnan

Amphimedon queenslandica is a coral reef demosponge that houses a low complexity and low abundance microbiota dominated by a proteobacterial duo for which draft genomes are presented here. The most prevalent symbiont, AqS1, is a sulphur-oxidising gammaproteobacterium closely related to other demosponge symbionts and to free-living Ectothiorhodospiraceae (Chromatiales). The predicted gene repertoire of AqS1 indicates that it is capable of sulphur oxidation, carbon monoxide oxidation and inorganic...

Ruixia SHEN,Chunyan TIAN,Zhidan LIU,Yuanhui ZHANG,Baoming LI,Haifeng LU,Na DUAN

Algal blooms have become a worldwide environmental concern due to water eutrophication. Dianchi Lake in Yunnan Province, China is suffering from severe eutrophication and is listed in the Three Important Lakes Restoration Act of China. Hydrothermal liquefaction allows a promising and direct conversion of algal biomass into biocrude oil. In this study, algal samples were collected from Dianchi Lake after a separation procedure including dissolved air flotation with polyaluminum chloride and centr...

A. Amiri-Farahani, and R. J. Allen, and D. Neubauer, and U. Lohmann

One component of aerosol–cloud interactions (ACI) involves dust and marine stratocumulus clouds (MSc). Few observational studies have focused on dust–MSc interactions, and thus this effect remains poorly quantified. We use observations from multiple sensors in the NASA A-Train satellite constellation from 2004 to 2012 to obtain estimates of the aerosol–cloud radiative effect, including its uncertainty, of dust aerosol influencing Atlantic MSc off the coast of northern Africa between 45° W and 15...

S. G. Penny, and E. Kalnay, and J. A. Carton, and B. R. Hunt, and K. Ide, and T. Miyoshi, and G. A. Chepurin

The most widely used methods of data assimilation in large-scale oceanography, such as the Simple Ocean Data Assimilation (SODA) algorithm, specify the background error covariances and thus are unable to refine the weights in the assimilation as the circulation changes. In contrast, the more computationally expensive Ensemble Kalman Filters (EnKF) such as the Local Ensemble Transform Kalman Filter (LETKF) use an ensemble of model forecasts to predict changes in the background error covariances a...

M. Symon

Purpose. To anayze scientific sources on physiological-biochemical pecularities of reducing-oxidizing processes, including peroxide oxidation of lipids and work of the system of antioxidant protection system in sturgeon species (Acipenseridae). The initiation and process of the oxidative stress have been described. The main products of peroxide oxidation of lipids, antioxidants of natural and artificial origin, organs and tissues for the studies of reducing-oxidizing processes have been examined...

Rodrigo Gurdek, and Alicia Acuña-Plavan

ABSTRACT Estuaries are highly dynamic ecosystems subjected to variability of their fish communities over different time scales. The nearshore fish community of the lower Pando estuary, a temperate sub-system of the Río de la Plata estuary, was sampled from May 2002 to June 2003. A total of 2,165 fishes, represented by 16 species were caught by seine netting. Captures were dominated by juveniles (>90%), as well as by the sciaenid Micropogonias furnieri (Desmarest, 1823) (82.8%). The fish communit...

Sayali Khedekar, and Apurv P Shimpi, and Ashok Shyam, and Parag Sancheti

Background: Conventional physiotherapy treatment for patients with rheumatoid hand emphasizes on single-plane movements and strengthening exercises directed toward improvement of function and prevention of deformities. This may be nondirective and lacks creativity and hence may predispose to a high attrition from therapy. The current study aimed to evaluate the efficacy of art as a creative therapeutic procedure for enhancement of hand functions, self-perception, and quality of life in patients ...

Ayman Abd Elmoneim El-Gamal, and Eman Mohamed Fakhry, and Dahlia Mohamed El-Maghraby

Objective: To study Ulva linza (U. linza) as macro-alga exposed to different levels of ionizing radiation from the natural background of radioactivity. Methods: Samples of U. linza were collected from two different habitats at the two terminals of the rocky shore of Abu Qir Bay, Alexandria, Egypt. The western terminal at Abu Qir represented an area of normal background radiation while the eastern terminal at Rosetta represented an area of relatively high background radiation. Distinguishing...

M. F. Rebelo, and M. C. R. Amaral, and W. C. Pfeiffer

The condition index (CI) of oysters represents an ecophysiological approach to estimate meat quality and yield in cultured bivalve mollusks. In the present study, the CI of oysters from a heavy-metal polluted bay was analyzed with respect to Zn and Cd contamination in soft tissues, spawning, and polychaete infestation. The CI was calculated through a new technique based on molds made to measure the volume of oyster-shell internal cavities. The higher CI values (over 9 in the dry season) were pro...

J. A. Schulte, and S. Lee

<p>Possible mechanisms behind the longevity of intense Long Island Sound (LIS) water temperature events are examined using an event-based approach. By decomposing an LIS surface water temperature time series into negative and positive events, it is revealed that the most intense LIS water temperature event in the 1979–2013 period occurred around 2012, coinciding with the 2012 ocean heat wave across the Mid-Atlantic Bight. The LIS events are related to a ridge–trough dipole pattern whose strength...

Nikolić Vera P., and Simonović P.D.

Sylvia Páz Díaz-Camacho, and María del Carmen de la Cruz-Otero, and Edith Hilario Torres-Montoya, and Sergio Sánchez-Gonzales, and Francisco Delgado-Vargas, and Yukifumi Nawa

Human gnathostomosis, a serious public health issue in Mexico, is endemic to Sinaloa. The disease is mainly caused by consumption of the raw meat of freshwater or estuarine fishes infected with the advanced third stage larvae (AL3) of Gnathostoma binucleatum. In the present study, we examined estuarine turtles with a sample consisting of 23 Trachemys scripta and 5 Kinosternon integrum from Sinaloa, Mexico for the presence of Gnathostoma larvae; such examination was made by the pressing method of...

Plínio Soares Moreira

Bathygnathia magnifica sp.n., a new bathyal species of Gnathiidea (Crustacea, Isopoda), is described for science. It was collected from off southern Brazil, at 387 m depth. The present find seems of interest, not only because for the first time a species of Bathygnathia is reported at such a depth, but because it is the first species of the genus bearing eyes, in spite of depauperate.<br>Uma nova espécie de Gnathiidea (Crustácea, Isopoda) batial, Bathygnathia magnifica sp. n., é descrita para a ...

Sandra Tagliolatto, and Mauricio M. A Alchorne, and Mauro Enokihara

FUNDAMENTOS: As glândulas sebáceas são suscetíveis à ação dos hormônios androgênios e apresentam proliferação benigna com a idade, ou seja, hiperplasia. OBJETIVOS: Estudo piloto para verificar se há correlação entre a taxa de hormônios masculinos circulantes e o aumento da incidência da hiperplasia das glândulas sebáceas. MÉTODOS: 16 pacientes do sexo feminino, com diagnóstico de hiperplasia sebácea cutânea, foram comparados a um grupo-controle de mesmo gênero e idades semelhantes, sem a doença....

J. Kaiser

Oxygen triple isotope measurements can be used to calculate aquatic gross oxygen production rates. Past studies have emphasised the appropriate definition of the ¹⁷O excess and often used an approximation to derive production rates from the ¹⁷O excess. Here, I show that the calculation can be phrased more consistently and without any approximations using the relative ¹⁷O/¹⁶O and ¹⁸O/¹⁶O isotope ratio differences (delta values) dir...

Monica M Lins de Barros, and Clovis B Castro, and Débora O Pires, and Bárbara Segal

The first study on coexistence of reef benthic organisms in Brazilian coral reefs was done in three localities of the Abrolhos Archipelago. Organisms were recorded in concentric circle samples (10 and 20 cm in diameter) randomly laid on transects. Type and frequency of "coexistence events" between pairs of organisms were determined. Most frequent organisms (massive and branched coralline algae, Favia gravida, and Agaricia agaricites) also had many significant positive coexistence events. These r...

Patricio Torres, and Angelica Neira

Limnoderetrema tolosai sp. n. (Trematoda, Digenea) within an autochthonous freshwater fish, the silverside Basilichthys autralis Eigenmann, 1927, from Lakes Riñihue and Ranco in Southern Chile is described. The species is distinguished from Limnoderetrema minutum (Manter, 1954) by the presence of one spine in the cirrus and cecal bifurcation nearer to ventral sucker than to pharinx. It is proposed Limnoderetrema macrophallus (Szidat & Nani, 1951) n. comb. (originally Steganoderma). Limnoderetrem...

Ana P. L. Martins, and Carlos B. Reissmann, and Nerilde Favaretto, and Maria R. T. Boeger, and Edilson B. de Oliveira

A eutrofização é caracterizada por um processo no qual um corpo d'água adquire altos níveis de nutrientes, especialmente nitratos e fosfatos, provocando o posterior acúmulo de matéria orgânica e sua decomposição. Uma das alternativas para a descontaminação ambiental é o uso da fitorremediação. O objetivo principal do trabalho foi testar a capacidade da Typha dominguensis na minimização da eutrofização da água de tanques de piscicultura. A partir da água dos tanques da Estação Experimental do Can...

Ruth Gomes de Figueiredo Gadelha, and João Paulo de Sousa Prado, and José Marcelino Oliveira Cavalheiro

O objetivo deste estudo foi avaliar a qualidade do resíduo de cevada na elaboração de dietas práticas em relação à qualidade nutricional, ao crescimento e à sobrevivência do camarão Litopenaeus vannamei. Foram elaboradas cinco dietas isoprotéicas e isoenergéticas com diferentes proporções da farinha de cevada e do farelo de milho (R1, R2, R3, R4 e R5) e uma ração comercial (R6). Estas foram fornecidas a 150 camarões por um período de 60 dias. O percentual de farinha de cevada utilizado nas raçõe...

S. Kaliraj, and N. Chandrasekar, and K.K. Ramachandran

The coastal landforms along the south west coast of Kanyakumari have undergone remarkable change in terms of shape and disposition due to both natural and anthropogenic interference. An attempt is made here to map the coastal landforms along the coast using remote sensing and GIS techniques. Spatial data sources, such as, topographical map published by Survey of India, Landsat ETM+ (30 m) image, IKONOS image (0.82 m), SRTM and ASTER DEM datasets have been comprehensively analyzed for extracting ...

Ahmed M. Motawie, and Khalid F. Mahmoud, and Abdallah A. El-Sawy, and Hesham M. Kamal, and Hassan Hefni, and Huda Amer Ibrahiem

Chitosan (CTS) was first prepared by proper treatment of shrimp shells and the cross-linked chitosan (CCTS) was then synthesized by its reaction with epichlorohydrin (ECH) under alkaline conditions. Adsorption of uranium from aqueous nitrate solution onto CCTS was investigated batch wise. The adsorption isotherm and the adsorption kinetic as well as thermodynamic studies of this adsorption are carried out. The influence factors on uranium (VI) adsorption were optimized and were found to include ...