Adriana Alzate, and Fernando A Zapata, and Alan Giraldo

Métodos de muestreo convencionales (censos visuales) usados en el estudio de peces arrecifales han llevado a una constante subestimación de la riqueza de especies, ya que estos tienden a ignorar especies pequeñas y crípticas. En este estudio describimos la estructura del ensamblaje de peces criptobentónicos en Isla Gorgona, Colombia y estimamos el grado en que este ensamblaje es subestimado al usar censos visuales. Al comienzo y al final de la estación cálida comparamos la capacidad de detección...

Kulnaree Phetrong, and Suppasil Maneerat

Biosurfactant-producing marine bacteria were isolated from oil-spilled seawater collected from harbors and docks in Songkhla Province, Thailand. Haemolytic activity, emulsification activity toward nhexadecane,emulsion of weathered crude oil, drop collapsing test as well as oil displacement test were used to determine biosurfactant producing activity of marine bacteria. Among two-hundred different strains, 40strains exhibited clear zone on blood agar plates. Only eight strains had haemolytic acti...

Elizabelle Pereira Costa, and Meiriédna Queiroz Mota, and Solange Galvão Coutinho, and Eva Rolim Miranda

This paper presents the results of a pilot study, together with a critical investigation of the semantic structure of the discourse in scientific papers, which have been published at conferences and in journals in the area of information design. The procedure involved the analysis of ten articles in Portuguese, with themes related to information design involving methodologies for non-projective scientific procedures. The main objective was to expose the strengths and weaknesses of the relat...

Vanessa Majewski Algarte, and Carina Moresco, and Liliana Rodrigues

Este trabalho analisou a estrutura e dinâmica da comunidade de algas do perifíton em três ambientes da planície de inundação do alto rio Paraná (lagoa do Guaraná, lagoa Fechada e rio Baía), em dois períodos hidrológicos (águas altas - AA e águas baixas - AB) do ano de 2003. O substrato utilizado foi Eichhornia azurea Kunth. Foram encontradosno total 284 táxons, sendo 193 em águas altas e 172 em águas baixas. A lagoa do Guaraná apresentou maior riqueza em ambos os períodos hidrológicos. No períod...

Liliane Lodi, and Cassiano Monteiro-Neto

The aim of the present study was to describe the size and composition of groups of common bottlenose dolphins (Tursiops truncatus) in the Cagarras Archipelago (23°01’S, 43°12’W), Rio de Janeiro, Brazil based on six years of observation (2004 and 2006 to 2010). The group size (n = 51) ranged between three and 30 individuals (mean = 13.7 ± 7.1), and the frequency distribution of group size showed modes at six individuals and 19 individuals. The largest average group size occurred in 2004 (mean 21....

E. E. Bockmon, and C. A. Frieder, and M. O. Navarro, and L. A. White-Kershek, and A. G. Dickson

As the field of ocean acidification has grown, researchers have increasingly turned to laboratory experiments to understand the impacts of increased CO₂ on marine organisms. However, other changes such as ocean warming and deoxygenation are occurring concurrently with the increasing CO₂ concentrations, complicating the understanding of the impacts of anthropogenic changes on organisms. This experimental aquarium design allows for independent regulation of CO₂ con...

Raimunda Sâmia Nogueira Brilhante, and Manoel de Araújo Neto Paiva, and Célia Maria de Souza Sampaio, and Carlos Eduardo Cordeiro Teixeira, and Joyce Fonteles Ribeiro, and Débora de Souza Collares Maia Castelo-Branco, and Tereza de Jesus Pinheiro Gomes Bandeira, and André Jalles Monteiro, and Rossana de Aguiar Cordeiro, and José Júlio Costa Sidrim, and Frederico Ozanan Barros Monteiro, and José Luciano Bezerra Moreira, and Marcos Fábio Gadelha Rocha

This study aimed to evaluate the role of the Amazon River prawn, Macrobrachium amazonicum, as carrier of Candida spp., by analyzing the correlation between Candida spp. from these prawns and their environment (surface water and sediment), through M13-PCR fingerprinting and RAPD-PCR. For this purpose, 27 strains of Candida spp. were evaluated. These strains were recovered from the gastrointestinal tract of adult M. amazonicum (7/27) from Catú Lake, Ceará State, Brazil and from the aquatic environ...

Carine Vignochi, and Patrícia P. Teixeira, and Silvana S. Nader

OBJETIVOS: Avaliar os efeitos da fisioterapia aquática na dor e no ciclo de sono e vigília de bebês prematuros estáveis hospitalizados. MÉTODOS: A pesquisa caracterizou-se como ensaio clínico não controlado de séries temporais. Foram incluídos 12 recém-nascidos clinicamente estáveis com idade gestacional inferior a 36 semanas internados em unidade de terapia intensiva neonatal. Após serem selecionados, os recém-nascidos foram colocados no meio líquido, onde foi iniciada a fisioterapia aquática, ...

Tárcio Santos Mangelli, and Joel Christopher Creed

Os corais exóticos coral-sol (Tubastraea coccinea Lesson, 1829 e T. tagusensis Wells, 1982) invadiram as comunidades biológicas sésseis dos costões rochosos da Baía da Ilha Grande, Rio de Janeiro, Brasil. Estruturas artificiais (piers, decks ou cais) foram selecionadas em quatro locais na Ilha Grande, e comparadas com substratos naturais adjacentes através de quantificação da densidade de cada espécie de Tubastraea, além da porcentagem de cobertura da biota bêntica. A densidade média geral de Tu...

Pablo Angel Meira Cartea

En noviembre de 2002, un petrolero obsoleto, el Prestige, naufragó y vertió su carga en las costas de Galicia (noroeste de la Península Ibérica). Este accidente originó un "experimento" social indeseado pero valioso para comprender cómo se representa socialmente la experiencia catastrófica de los "riesgos manufacturados". Este artículo analiza la respuesta del sistema educativo regional a la catástrofe desde dos puntos de vista: a) su comprensión en el marco de la respuesta social crítica y proa...

Vernon E. Thatcher, and Gustavo S. de Araújo, and José T. A. X. de Lima, and Sathyabama Chellappa

Cymothoa spinipalpa sp. nov. (Isopoda, Cymothoidae) a buccal cavity parasite of the marine fish, Oligoplites saurus, is described on the basis of eight male specimens and one female. The fish hosts were captured in the coastal waters of Natal, Rio Grande do Norte State, Brazil. In the new species, the anterior margin of the cephalon is doubled ventrally over the bases of the antennae. In this respect, it resembles C. recifea Thatcher & Fonseca, 2005. It differs from that species, however, in bei...

Elisabeth Jeannette Ploran, and Jacob eBevitt, and Jaris eOshiro, and Raja eParasuraman, and James C. Thompson

The ability to navigate flexibly (e.g., reorienting oneself based on distal landmarks to reach a learned target from a new position) may rely on visual scanning during both initial experiences with the environment and subsequent test trials. Reliance on visual scanning during navigation harkens back to the concept of vicarious trial and error, a description of the side-to-side head movements made by rats as they explore previously traversed sections of a maze in an attempt to find a reward. In t...

D K Ghosh, and C Kodange, and C S Mohanty, and Rohit Verma, and S Sarkar

Introduction: Diving is a n operational commitment of navy. Diving operations are conducted with I without the presence of a MM spl. Study of MM done along with phases of attachments at different diving operational units as practical orientation. Classes of Divers: (a) Ship Diver (SD). Trained to dive up to 35 MSW (b) Clearance Diver (CD): They are trained to dive up to 55 MSW. (c) CD (DD): They are Deep divers, also trained in saturation diving using Helium Oxygen mixture, (d) Chariot Diver: Th...

Peixin Zhao, and Haoran Yu, and Zhiyang Wang, and Lulu Xu

<p><strong>Purpose:</strong> Under the background of global warming, low carbon economy, which is based on low waste and low pollution, has become a globally focused topic. Energy conservation, emission reduction and low carbon development have become irresistible trends of social development. A new set of low carbon evaluation index system for logistics enterprises is proposed. It is helpful for the better monitor of low carbon production and provide the optimization of industrial policies in C...

R. Ghahremaninezhad, and A.-L. Norman, and J. P. D. Abbatt, and M. Levasseur, and J. L. Thomas

Size-segregated aerosol sulfate concentrations were measured on board the Canadian Coast Guard Ship (CCGS) <i>Amundsen</i> in the Arctic during July 2014. The objective of this study was to utilize the isotopic composition of sulfate to address the contribution of anthropogenic and biogenic sources of aerosols to the growth of the different aerosol size fractions in the Arctic atmosphere. Non-sea-salt sulfate is divided into biogenic and anthropogenic sulfate using stable isotope apportio...

Robert McCormack

Gramastacus lacus sp. n., is described from coastal lowlands of the Central and Mid North Coast regions of New South Wales, Australia. Gramastacus lacus has a restricted distribution in ephemeral habitats, being dependent on regular natural flooding and drying cycles, and burrows for survival during temporary dry cycles. Documented are population distributions in lowland habitats (3&ndash;48 m, a.s.l.) from Wamberal Lagoon, north along the coastal strip to Wallis Lake. The species is small, reac...

Hanan M. Abd-Elnaby, and Gehan M. Abou-Elela, and Hanan A. Ghozlan, and Halla Hussein, and Soraya A. Sabry

Three marine Psychrobacter strains were isolated from seawater and sediments in Mediterranean Sea, Egypt, using culture-dependent techniques. Genotypic characterization for the three strains was performed using 16S rDNA sequence analysis. The Psychrobacter strains were screened for some physiological, biochemical characters, resistance to some antibiotics and heavy metals. All tested Psychrobacter strains were able to resist and accumulate several metals (Pb2+, Cu2+ and Cd2+) with variable degre...

soheil toutounchi, and seyedjavid mortazavitabrizi, and omid habibi, and jamileh pazouki

To investigate and identify the helminthes parasites in the digestive tract of the catfish in Aras Dam in the spring of 2011, 50 catfish were caught measuring 0.5 to 4.5 kg and 50 to 120 cm from this dam. Their Gastrointestinal tracts were then removed and placed in plastic containers containing 10% formalin and transferred to Fisheries Laboratory, Faculty of Veterinary Medicine, Islamic Azad University of Tabriz. The helminthes parasites were isolated, stained and identified and their species w...

P. Lehodey, and I. Senina, and A.-C. Dragon, and H. Arrizabalaga

The development of the ecosystem approach and models for the management of ocean marine resources requires easy access to standard validated data sets of historical catch data for the main exploited species. They are used to measure the impact of biomass removal by fisheries and to evaluate the models outputs, while the use of a standard data set facilitates models inter-comparison. Unlike standard stock assessment models, new state-of-the-art ecosystem models require geo-referenced fishing data...

Joshua Louis Bonesso, and William Leggat, and Tracy Danielle Ainsworth

Elevated sea surface temperatures (SSTs) are linked to an increase in the frequency and severity of bleaching events due to temperatures exceeding corals’ upper thermal limits. The temperatures at which a breakdown of the coral-Symbiodinium endosymbiosis (coral bleaching) occurs are referred to as the upper thermal limits for the coral species. This breakdown of the endosymbiosis results in a reduction of corals’ nutritional uptake, growth, and tissue integrity. Periods of elevated sea surface t...

M. RADOLOVIĆ, and T. BAKRAN-PETRICIOLI, and D. PETRICIOLI, and M. SURIĆ, and D. PERICA

The Croatian coastal karst abounds in submerged caves that host a variety of environmental conditions depending on the geomorphology, depth and submarine groundwater discharge. One example is the Y-Cave, a shallow, mostly submerged, horizontal cave on Dugi Otok Island, on the eastern Adriatic coast. This study was aimed at examining the temporal and spatial variability of the marine cave environment, including temperature, salinity, light intensity, cave morphology and hydrodynamism, along with ...

Susete Pinteus#

Recently, marine bacteria have received great attention for the search of biologically active substances. As they are continuously competing for space and nutrients they produce a variety of secondary metabolites which inhibit the settlement of potential competitors such as fouling bacteria, invertebrates or larvae. This harsh environment plays a crucial role in the evolution of marine microorganisms making them excellent candidates for the search of bioactive compounds. In this work, the extrac...

Rinichi Murao, and Sadao Takeuchi, and Minoru Inaba, and Masayuki Hosaya

In this report are reviewed the operating procedures and test results of an experimental hovercraft that was tested during 8 years at Japan's Syowa Station Antarctica. A small size-2.8t-experimental hovercraft was unloaded near Syowa Station in January 1981 and left there for testing of performance, maneuverability and maintenance requirements until it was decommissioned in February 1990. The dominant environmental feature affecting reliable hovercraft operation was ingestion of snow into the en...

施文真 Yu Wen-Chen Shih

基因改造作物對於糧食安全以及生態環境的影響與衝擊目前係一尚無定論的議題。以生物多樣性資源的保育為出發點的「生物安全議定書」（以下簡稱議定書），希望透過事前告知同意程序的制度設計，替締約國在初次引進改性活生物體時，有一套可以依循的程序規範；在相同的國際管制帄台上，為預防外來種所造成對於一國環境生態的衝擊，WTO 也授權各國，依據「食品安全檢驗與動植物防疫檢疫措施協定」（SPS 協定）的規定，可以透過動植物檢疫措施的制訂以保護國內的生態系。兩套的進口管制制度是否相容，牽涉到國際環境公約與WTO 之間的關係與互動的議題，對於一國國內的生態環境以及生物科技發展也有其關聯性，因此，引起不少學者以及實務工作者的討論。本文將嘗詴著由程序面的觀察，討論在進口管制的程序上，比較議定書以及SPS 協定中的程序規範，找出是否可以透過進口管制程序的程序設計來避免兩套管制體系的衝突。此外，由於台灣並非生物安全議定書的締約國，依據議定書的規定，締約國得與非締約國針對改性活生物體的跨境運輸簽訂雙邊、區域性或是多邊的協定，本文也將針對議定書中此一規定，討論台灣在面對談判此等協定時，應採取的立場。 The impac...

Rui Jiang, and You-Shao Wang

A coupled three-dimensional physical model and a nitrogen-based nutrient, phytoplankton, zooplankton, and detritus (NPZD) ecosystem model were applied to simulate the summer coastal upwelling system over the continental shelf of northern South China Sea (NSCS) and its impact on hydrographic conditions and ecosystem. The simulated results were comprehensively validated against field and satellite measurements. The model results show that the near shore ecosystem of NSCS has significant responses ...

Terrie Klinger, and Elizabeth A. Chornesky, and Elizabeth A. Whiteman, and Francis Chan, and John L. Largier, and W. Waldo Wakefield

Ocean acidification is intensifying and hypoxia is projected to expand in the California Current large marine ecosystem as a result of processes associated with the global emission of CO2. Observed changes in the California Current outpace those in many other areas of the ocean, underscoring the pressing need to adopt management approaches that can accommodate uncertainty and the complicated dynamics forced by accelerating change. We argue that changes occurring in the California Current large m...

Simone Pascuzzi, and Ileana Blanco, and Alexandros Sotirios Anifantis, and Giacomo Scarascia-Mugnozza

A pilot power system formed by photovoltaic panels, alkaline electrolyser and fuel cell stacks was designed and set up to supply the heating system of an experimental greenhouse. The aim of this paper is to analyse the main safety aspects of this power system connected to the management of the pressured hydrogen, such as the explosion limits of the mixture hydrogen-oxygen, the extension of the danger zone, the protection pressure vessels and the system to make unreactive the plant. The electroly...

Yao-Ting Huang, and Yu-Yu Tang, and Jan-Fang Cheng, and Zong-Yen Wu, and Yan-Chiao Mao, and Yan-Chiao Mao, and Po-Yu Liu, and Po-Yu Liu, and Po-Yu Liu

R. K. Scharien, and J. Landy, and D. G. Barber

Understanding the evolution of melt ponds on Arctic sea ice is important for climate model parameterisations, weather forecast models and process studies involving mass, energy and biogeochemical exchanges across the ocean–sea ice–atmosphere interface. A field campaign was conducted in a region of level first-year sea ice (FYI) in the central Canadian Arctic Archipelago (CAA), during the summer of 2012, to examine the potential for estimating melt pond fraction (<i>f</i>_p) from satell...

Justyna Teodorowicz

<span>The purpose of the present article is to discuss two literary motifs that can be traced throughout Anton Holban’s prose works: music and the sea. Holban, who wrote also music reviews for newspapers, had a genuine passion for music, which is reflected in his novels and short stories. Music appears in Holban’s literature as the highest form of artistic expression, and, at the same time, as a special and unique code used by lovers to communicate with each other, which isolates them from other...

M. Camargo, and T. Giarrizzo, and VJ. Isaac

Abstract This study estimates the main biological parameters, including growth rates, asymptotic length, mortality, consumption by biomass, biological yield, and biomass, for the most abundant fish species found on the middle Xingu River, prior to the construction of the Belo Monte Dam. The specimens collected in experimental catches were analysed with empirical equations and length-based FISAT methods. For the 63 fish species studied, high growth rates (K) and high natural mortality (M) were re...

Matteo Riccò, and Silvia Cattani, and Franca Casagranda, and Giovanni Gualerzi, and Carlo Signorelli

Objectives: This study aims to characterize personal attitudes and knowledge of a sample of Italian occupational physicians (OPhs) towards immunization practice in the case of healthcare workers (HCWs). Material and Methods: A total of 90 OPhs (42.2% of males, 57.8% of females, mean age of 50.1±8.3 years old) compiled a structured questionnaire through a telephonic interview. They were asked about the official Italian recommendations for HCWs, their general knowledge of vaccine practice, their p...

Gastón A. Trobbiani, and Leonardo A. Venerus

In the last years, technological advances enhanced the utilization of baited underwater video (BUV) to monitor the diversity, abundance, and size composition of fish assemblages. However, attempts to use static single-camera devices to estimate fish length were limited due to high errors, originated from the variable distance between the fishes and the reference scale included in the scene. In this work, we present a novel simple method to obtain accurate length estimates of carnivorous fishes b...

Maurizio Bossù , and Denise Corridore , and Angelica D’Errico , and Barbara Ladniak , and Livia Ottolenghi , and Antonella Polimeni

Background. From the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR), autism is considered a pervasive developmental disorder. It manifests as a behavioral syndrome characterised by impairment in social interaction and communication, restricted interests and activities, as well as repetitive and stereotyped patterns. Such profile renders prevention measures and dental care seriously compromised so that usually autistic children are treated and cared following general anesthesia...

Gisele Caroline Novakowski, and Norma Segatti Hahn, and Rosemara Fugi

We assessed the trophic structure of the fish fauna in Sinhá Mariana pond, Mato Grosso State, from March 2000 to February 2001. The aim was to determine the feeding patterns of the fish species during the rainy and dry seasons. The diets of 26 species (1,294 stomach contents) were determined by the volumetric method. Insects and fish were the most important food resources: insects were the dominant food of 23% and 27% of the species, respectively, in the rainy and dry season, and fish was the do...

Beuy Joob, and Viroj Wiwanitkit

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A. Petronio, and F. Roman, and C. Nasello, and V. Armenio

In the present paper a state-of-the-art large eddy simulation model (LES-COAST), suited for the analysis of water circulation and mixing in closed or semi-closed areas, is presented and applied to the study of the hydrodynamic characteristics of the Muggia bay, the industrial harbor of the city of Trieste, Italy. The model solves the non-hydrostatic, unsteady Navier–Stokes equations, under the Boussinesq approximation for temperature and salinity buoyancy effects, using a novel, two-eddy viscosi...

Carla Simone Pavanelli, and Carlos Alexandre Miranda Oliveira

Astyanax gymnodontus (Eigenmann, 1911), new combination, a polymorphic characid fish endemic to the Rio Iguaçu basin in Southern Brazil, is redescribed. The species was originally described as belonging to the monotypic genus Psalidodon, distinguished from Astyanax by the possession of a single series of teeth on the premaxilla (vs. two series), by the presence of relatively compressed teeth on the premaxillary and dentary bones (vs. relatively bulky teeth), and by the absence of lips (vs. lips ...

A. N. Abbott, and B. A. Haley, and A. K. Tripati, and M. Frank

Global warming during the Paleocene–Eocene Thermal Maximum (PETM)  ∼  55 million years ago (Ma) coincided with a massive release of carbon to the ocean–atmosphere system, as indicated by carbon isotopic data. Previous studies have argued for a role of changing ocean circulation, possibly as a trigger or response to climatic changes. We use neodymium (Nd) isotopic data to reconstruct short high-resolution records of deep-water circulation across the PETM. These records are derived by reductively ...

Andre Lincoln Barroso de Magalhaes, and Claudia Maria Jacobi

A model was developed to assess the risk of invasion of ornamental non-native fishes to six rivers in the state of Minas Gerais, southeastern Brazil, with focus on species popularity. Thirty-nine aquarium shops, in six cities, were visited monthly from January to December 2007. In each city, fish species were identified, and their biology and invasion history information was obtained from the literature. We calculated the annual frequency of occurrence and average number of specimens monthly ava...

MR. Oliveira, and MM. Carvalho, and NB. Silva, and ME. Yamamoto, and S. Chellappa

The epipelagic flyingfish, Hirundichthys affinis is a major artisanal fishery resource from the Northeastern coastal waters of Brazil. However, biological information about this species has been poorly documented. This paper presents data on the length-weight relationship, sex ratio, length at first sexual maturity, gonadal development and fecundity of H. affinis sampled from the coastal waters of Rio Grande do Norte, Brazil. The total body length and weight for both sexes ranged from 23.4 to 29...

Cengiz Metin, and Gökhan Gökçe

Seijo LM

Luis M Seijo Pulmonary Department, Instituto de Investigaci&oacute;n Sanitaria-Fundaci&oacute;n Jimenez D&iacute;az-Centro de Investigaci&oacute;n Biomedica en Red Enfermedades Respiratorias, Madrid, Spain Abstract: Electromagnetic navigation bronchoscopy (ENB) is one of several technological advances which have broadened the indications for bronchoscopy in the diagnostic workup of lung cancer. The technique facilitates bronchoscopic sampling of peripheral pulmonary nodules as well as mediastina...

Vijai Lakshmi, and Prashant Khare, and Pragya Misra, and Mahendra Nath Srivastava, and Anuradha Dube

Objective: To evaluate the antileishmanial activity of a marine sponge Haliclona oculata. Methods: The crude methanol extract was prepared from the freshly collected sponge and its three fractions were also prepared by maceration method. The antileishmanial activity of these extract and fractions was tested against Leishmania donovani. Results: The antileishmanial activity was tested both in vitro and in vivo. The crude methanol extract exerted almost complete inhibition of promastigotes (8...

Jason W. Osborne

Logistic regression and odds ratios (ORs) are powerful tools recently becoming more common in the social sciences. Yet few understand the technical challenges of correctly interpreting an odds ratio, and often it is done incorrectly in a variety of different ways. The goal of this brief note is to review the correct interpretation of the odds ratio, how to transform it into the more easily understood and intuitive relative risk (RRs) estimate, and a suggestion for dealing with odds ratios or rel...

William G. R. Crampton, and Carlos D. de Santana, and Joseph C. Waddell, and Nathan R. Lovejoy

ABSTRACT The bluntnose knifefish genus BrachyhypopomusMago-Leccia, 1994, is diagnosed from other Rhamphichthyoidea (Rhamphichthyidae + Hypopomidae) by the presence of a disk-like ossification in the anterior portion of the palatoquadrate, and by the following external characters: short snout, 18.7-32.6% of head length (vs. 33.3-68.6% in Hypopomus, Gymnorhamphichthys, Iracema, and Rhamphichthys), absence of a paired accessory electric organ in the mental or humeral region (vs. presence in Hypopyg...

Álvaro Nagib Atallah

Г. И. Худяков

The article develops ideas and formulas of analytical geometry for spherical surface of the Earth globe in relation to main tasks of global geodesy and navigation. It examines peculiarities of sphere inner geometry and properties of its primary, secondary and higher-order curves. It was proved that spherical hyperbola and parabola are spherical ellipses with specific parameters. The Cartesian ordinates were introduced into the sphere and the relation between them and polar spherical coordinates ...

Catur A. Pebrianto, and . Sukenda, and . Widanarni

<p>The objective of this research was to study antibacterial and immunostimulatory effects of <em>Trichoderma</em> sp. extract on white shrimp, <em>Litopenaeus vannamei</em>.  First experiment was conducted to evaluate inhibitory effect of <em>Trichoderma </em>sp. againts <em>Vibrio harveyi</em>, a pathogenic bacteria causing vibriosis disease on shrimp.  Second experiment was conducted to evaluate immunostimulatory effect of <em>Trichoderma</em> sp. on shrimp immunity as well as protective effe...

Sahar Wefky Mostafa Hassan, and Usama Mohamed Abdul-Raouf, and Mohamed Abdel-Rahiem Ali

Estimation of the total viable bacterial counts and some physicochemical parameters in different sites selected along the Suez Bay was carried out. The highest bacterial density is positively correlated with pollution strength and is localized at the end of the Suez Bay on the one hand of Suez Gulf. It is also function of pollution strength at different examined sites. Antagonistic interactions among the most dominating twenty-two bacterial isolates were assayed. The marine isolate AB12 isolated...