Adelmo Lowe Pletsch, and Magda Beretta, and Tania Mascarenhas Tavares

<abstract language="eng">Organic tin compounds were investigated in the sediment of twenty-four stations located in the Todos os Santos Bay and the north coast of Bahia - Brazil. The concentration of these organic tin was also determined in a ascidium species of Phallusia nigra. The speciation and quantification was performed by GC-MS/MS. The highest concentrations were: tributyltin (TBT) 438 ng g-1, dibutyltin (DBT) 207 ng g-1, monobutyltin (MBT) 423 ng g-1, diphenyltin (DPT) 25.8 ng g-1 and mo...

Silvia Ferreira Andrusaitis, and Guilherme Carlos Brech, and Gabriela Faller Vitale, and Júlia Maria D' Andréa Greve

Mirta L García, and Andrés J Jaureguizar, and Lucila C Protogino

The spatial pattern of fish assemblages and its relationship with factors along an environment gradient, from fresh to marine water environment along the Río de la Plata estuary (36ºS, 56ºW) the shelf and part of the slope, was examined using data from 22 sampling stations. Fish were sampled from all station with an Engel type trawl (200 mm stretched mesh in the wings, 120 mm stretched mesh in the cod ends, 4 m vertical opening and 15 m horizontal aperture) towed at 4 knots for 20 to 30 min per ...

A. Yool, and E. E. Popova, and A. C. Coward, and D. Bernie, and T. R. Anderson

Most future projections forecast significant and ongoing climate change during the 21st century, but with the severity of impacts dependent on efforts to restrain or reorganise human activity to limit carbon dioxide (CO₂) emissions. A major sink for atmospheric CO₂, and a key source of biological resources, the World Ocean is widely anticipated to undergo profound physical and – via ocean acidification – chemical changes as direct and indirect results of these emissions. Gi...

A. Elverhøi, and A. Elverhøi, and D. Issler, and D. Issler, and F. V. De Blasio, and F. V. De Blasio, and T. Ilstad, and T. Ilstad, and C. B. Harbitz, and C. B. Harbitz, and P. Gauer, and P. Gauer

<p style='line-height: 20px;'> Recent experimental and theoretical work on the dynamics of submarine debris flows is summarized. Hydroplaning was first discovered in laboratory flows and later shown to likely occur in natural debris flows as well. It is a prime mechanism for explaining the extremely long runout distances observed in some natural debris flows even of over-consolidated clay materials. Moreover, the accelerations and high velocities reached by the flow head in a short time appear ...

W. Sweers, and S. Horn, and G. Grenzdörffer, and J. Müller

Despite the beneficial effects of reeds on abiotic environmental resources (by trapping sediments) their tendency to form near-monocultures with only a small number of accompanying species limits biodiversity at the landscape scale. This is a problem in some habitats such as coastal saltmarsh grasslands which have the potential to host a range of rare species. To understand the influence of differing grazing regimes, we investigated the distribution of reed stands and of competing saltmarsh gras...

M. James C. Crabbe

Sustainability science can, through capacity building, allow for integrated stakeholder management of the vital Caribbean marine ecosystems. We did a capacity building exercise in two major coral reef areas in Southern Belize. The key outcome was a six-month personal/professional action plan developed by each participant about tactics for leading, educating and supporting issues regarding sustainable development and tactics for collaboration to influence policy decisions. Our results can be appl...

Eduardo Marques Izeppi, and Ronaldo Olivera Cavalli, and Eduardo Cupertino Ballester, and Roberta Borda Soares, and Wilson Wasielesky Junior, and Maurício Gustavo Coelho Emerenciano

O objetivo do experimento foi avaliar o potencial do cultivo em meioheterotrófico (flocos microbianos) no crescimento e sobrevivência de Farfantepenaeus paulensis na fase de berçário. Durante 30 dias foram cultivadas pós-larvas de F. paulensis (0,019 ± 0,01 g), em 9 tanques plásticos de 40 litros na densidade de 500 pós-larvas m-2. Foram utilizados três tratamentos, com três repetições: cultivo na presença do floco microbiano com fornecimento de ração (FLOC + R); cultivo somente na presença do f...

Ain Ayob, and Ammar Ihsan Awadh, and Hazrina Hadi, and Juliana Jaffri, and Shazia Jamshed, and Hawa Mas Azmar Ahmad

Background: Increased usage of cosmetic products has caused a growing concern about the safety of these products, and yet little is known about cosmetics from the consumers' perspective. Hence, this study's aim is to develop a valid and reliable tool for assessing consumers' awareness, perceptions, and attitudes toward cosmetic products. Materials and Methods: A questionnaire was developed in the English language based on information collected from a literature search, in-depth interviews conduc...

Fatima Zohra Mohamed-Chérif, and César Ducruet

Le Maghreb central (Maroc, Algérie, Tunisie) possède une façade maritime de 3 000 km en bordure de la mer Méditerranée et de l’océan Atlantique. Sa position de carrefour entre deux mers et deux continents en fait un acteur stratégique de l’interface Nord/Sud que constitue la mer Méditerranée. Les auteurs passent ici en revue les éléments de convergence et de divergence dans l’organisation spatiale de cette façade et analysent le rôle des ports et du transport maritime dans la mise en relation ré...

危芷芬（通訊作者）Chih-Fen Wei, and 林蔚芳 Wei-Fung Lin

多元文化諮商（multicultural counseling）是近年來諮商專業領域中最重要的議題之一（Sue & Sue, 2003），甚至被視為是心理學的第四勢力（Pedersen, 1991）。海外專業志工服務不僅可實踐專業於志工服務，亦能培育具備多元文化諮商能力的專業助人工作者。本研究以臺北市立教育大學心理與諮商學系的海外專業志工課程方案為例，說明課程方案發展的歷程並分析此課程方案如何提升志工的國際視野與公民責任感。臺北市立教育大學心理與諮商學系師生於2010年及2011年兩度前往雅加達臺灣國際學校，舉行EQ心理成長營及生涯成長營。課程設計除了符合學校定位與教育學院願景之外，也期能培養學生具備團隊合作精神、創新思考、心理專業倫理思辨與實踐、文化尊重與社會關懷之基本素養。海外志工服務與大四專業實習課程結合，融合輔導原理與實務、心理與教育測驗、諮商理論與技術、團體輔導、諮商技巧、生涯發展與輔導等課程，其成效包括：一、增進志工服務學生對於跨文化諮商的專業意識；二、增進志工服務學生對情緒教育、生涯規劃及生命教育的瞭解；三、增進學生設計、帶領營隊及跨文化服務輔導的能力；四、開拓學生之國際...

Cenk Şahan, and Zerrin Sungur, and Emre Çamcı, and Nükhet Sivrikoz, and Ömer Sayin, and Hakan Gurvit, and Mert Şentürk

Abstract Background and objectives: Postoperative cognitive dysfunction is common after cardiac surgery. Adequate cerebral perfusion is essential and near infrared spectroscopy (NIRS) can measure cerebral oxygenation. Aim of this study is to compare incidence of early and late postoperative cognitive dysfunction in elderly patients treated with conventional or near infrared spectroscopy monitoring. Methods: Patients undergoing coronary surgery above 60 years, were included and randomized to 2 ...

廖宗聖 Tsung-Sheng Liao

面對氣候變遷對人類造成的挑戰與可能衝擊，國際社會在1992 年通過聯合國氣候變化綱要公約，企圖減緩地球暖化。1997 年再次通過京都議定書，正式對氣候變化綱要公約附件一國家課予溫室氣體排放量限制及排放減量的義務。唯中華民國（臺灣）的國際地位特殊，無法以國家名義加入前述全球氣候變遷規範體系。進而，一方面未受到溫室氣體排放義務的拘束，另一方面亦無法利用公約所建立的機制，從事國內氣候變遷減緩與調適措施。如今在氣候變遷議題上，中華民國（臺灣）地位的轉變以及其自然環境、社會環境的改變，將促成國際法進行微調，創造「碳排放實體」一詞，將中華民國（臺灣）納入全球氣候變遷規範體系中，也就變得可行且理應如此。 To meet the challenges and to face the possible impacts that climate change might cause on humans, the international community passed the United Nations Framework Convention on Climate Change in 1992,...

Raymond Y Lo, and Yen-Chieh Lo, and Shu-Cin Chen, and Yu-Ying Li, and Ya-Ling Yang, and Yu-Ling Chang, and Huei-Chuan Sung, and Tina H. T Chiu, and Joshua O. S Goh

Objective: To test the feasibility of establishing a senior volunteer cohort and describe vascular risks, cognitive function, and brain aging indices in a pilot study. Materials and Methods: We enrolled 40 senior volunteers from the Tzu Chi Foundation and other organizations in Hualien in 2014–2015. We conducted in-person interviews to collect information on demographic features, physical fitness, dietary habits, comorbidities, and narratives of aging. Vascular risks including blood pressure, bo...

Chetna Deep Lamba, and Praveen Oberai, and Raj K Manchanda, and Padmalaya Rath, and P Hima Bindu, and Maya Padmanabhan

Background and Objectives: This study was conducted with the primary objective of evaluating efficacy of Homoeopathy in establishing the menstrual regularity with improvement in either ultrasonological findings or hirsutism/acne. The quality of life was also assessed using polycystic ovary syndrome questionnaire (PCOSQ). Materials and Methods: A single-blind, randomised, placebo-controlled pilot study was conducted from February 2014 to May 2015 at two research centres. The cases fulfilling the ...

Francesco Casalinuovo, and Donatella Brindisi, and Paola Rippa, and Carlotta Ceniti, and Lucia Ciambrone, and Rosanna Musarella, and Nicola Costanzo

Tuna is a food widely consumed fresh and canned as well. After catching and filleting, a pre-cooking step is normally followed by freezing and shipping to canning industry as loins. The aim of this paper was to assess the microbiological quality and safety of tuna loins (50 samples) imported by an Italian canned tuna producer from two different FAO fishing areas. Total bacterial count (TBC), Coliforms, Enterobacteriaceae, Escherichia coli, Listeria monocytogenes, Salmonella, Staphylococcus aureu...

M Indrakanth Reddy, and Ushakiran Singh, and Arpit Upadhayaya

A 20-year-old young serving sailor presented with a two day history of loss of appetite, mild grade fever and yellow discoloration of both eyes and urine, while sailing, off the home port. He had icterus and tender Grade I hepatomegaly and was provisionally diagnosed as a case of clinical jaundice. As there was no facility for investigation on board, the severity of jaundice, as well as the type of infection were not known. The patient was isolated in a separate compartment and universal precaut...

Eunseok Kim, and Hye Su Kim, and So-Young Jung, and Chang Hyun Han, and Young-Il Kim

Abstract Background This study aims to evaluate the efficacy and safety of thread-embedding acupuncture (TEA) with polydioxanone thread embedded at various acupoints, compared with sham TEA, for the treatment of non-specific chronic neck pain. Methods/design This study will be an 8-week-long, two-armed, parallel, randomized, subject-assessor-blinded, sham-controlled pilot trial. Fifty eligible patients will be randomly allocated into the real TEA group or the sham TEA group. The real TEA group w...

Dominique Endres, and Daniela Huzly, and Rick Dersch, and Oliver Stich, and Benjamin Berger, and Florian Schuchardt, and Evgeniy Perlov, and Nils Venhoff, and Sabine Hellwig, and Bernd L. Fiebich, and Daniel Erny, and Tilman Hottenrott, and Ludger Tebartz van Elst

Abstract Background We previously described inflammatory cerebrospinal fluid (CSF) alterations in a subgroup of patients with schizophreniform disorders and the synthesis of polyspecific intrathecal antibodies against different neurotropic infectious pathogens in some patients with bipolar disorders. Consequently, we have measured the prevalence of a positive MRZ reaction (MRZR)—a marker for a polyspecific, antiviral, intrathecal, humoral immune response composed of three antibody indices for th...

Chigozie Louisa J. Ugwu, and Temesgen T. Zewotir

Abstract Background The effect of malaria in Nigeria is still worrisome and has remained a leading public health issue in the country. In 2016, Nigeria was the highest malaria burden country among the 15 countries in sub-Saharan Africa that accounted for the 80% global malaria cases. The purpose of this study is to utilize appropriate statistical models in identifying socio-economic, demographic and geographic risk factors that have influenced malaria transmission in Nigeria, based on malaria ra...

Adam T. Devlin, and David A. Jay, and Stefan A. Talke, and Edward D. Zaron, and Jiayi Pan, and Hui Lin

Abstract Are perturbations to ocean tides correlated with changing sea-level and climate, and how will this affect high water levels? Here, we survey 152 tide gauges in the Pacific Ocean and South China Sea and statistically evaluate how the sum of the four largest tidal constituents, a proxy for the highest astronomical tide (HAT), changes over seasonal and interannual time scales. We find that the variability in HAT is significantly correlated with sea-level variability; approximately 35% of s...

Jin Ma, and Dai Zhou, and Zhaolong Han, and Kai Zhang, and Yan Bao, and Li Dong

A semi-submersible offshore platform always operates under complex weather conditions, especially wind and waves. It is vital to analyze the structural dynamic responses of the platform in short-term sea states under the combined wind and wave loads, which touches upon three following work. Firstly, a derived relationship between wind and waves reveals a correlation of wind velocity and significant wave height. Then, an Improved Mixture Simulation (IMS) method is proposed to simulate the time se...

Dina A. Emarah, and Safwat A. Seleem

The cyclic heave and settlement of expansive soils could be the main reason to considerable damages to the structures, roads and highways. In Egypt there are many regions containing such expansive soils especially at the desert lands. The remote areas are used now for establishing many projects such as (wind farms, solar plants, irrigation projects and nuclear power plants). The use of a mixture of lime-treated swelling soil mixed with potable water to overcome the swelling potential of these so...

D. V. Spracklen, and K. J. Pringle, and K. J. Pringle, and K. S. Carslaw, and G. W. Mann, and P. Manktelow, and J. Heintzenberg

A statistical synthesis of marine aerosol measurements from experiments in four different oceans is used to evaluate a global aerosol microphysics model (GLOMAP). We compare the model against observed size resolved particle concentrations, probability distributions, and the temporal persistence of different size particles. We attempt to explain the observed sub-micrometre size distributions in terms of sulfate and sea spray and quantify the possible contributions of anthropogenic sulfate and car...

DILIAN GEORGIEV

Till now 13 species of aquatic molluscs are known to inhabit the park area: 11 species of snails and 2 species of clams. Even included in the list the species of Grossuana and Radix balthica has to be studied anatomically for sure identification. Nine species are of conservation statute classified as "Least Concern" or "Vulnerable", and four does not have any statute. Three stygobiotic snail species are local endemics.

Emerson Carlos Soares, and Arthur Murilo da Silva Sousa Bruno, and Jonatha Melo Lemos, and Robson Batista dos Santos

Twenty-eight months of data collection revealed the profile of fishing production in the region of lower São Francisco. Catches consist of up to approximately 22 species, of which five are the most common: Prochilodus argenteus, Leporinus spp., Anchoviella vaillantii, Centropomus spp. and Eugerres brasilianus. The fishing fleet that is active in the region is made up of non-motorized canoes, motorized canoes and boats, and the vast majority employ the most common types of fishing nets and other ...

Jannine Forattini de Oliveira, and João Luiz Rossi Júnior, and Flaviana Lima Guião Leite, and Daniel Capucho de Oliveira, and Lorena Adão Vescovi Séllos Costa, and Ieverton Cleiton Correia da Silva, and Marcelo Weinstein Teixeira, and Fabiano Séllos Costa

A tomografia computadorizada quantitativa (TCQ) é uma técnica com alta sensibilidade, aplicabilidade e precisão no diagnóstico de perda de massa óssea, entretanto a falta de valores de normalidade para animais silvestres limita a sua aplicação clínica. O presente estudo objetiva estabelecer valores médios de radiodensidade do osso trabecular das vértebras dorsais, osso pleural e osso neural de tartarugas marinhas juvenis hígidas utilizando a TCQ. Para isso, utilizou-se um grupo experimental de c...

R. Archetti, and A. Bolognesi, and A. Casadio, and M. Maglionico

The operating conditions of urban drainage networks during storm events depend on the hydraulic conveying capacity of conduits and also on downstream boundary conditions. This is particularly true in coastal areas where the level of the receiving water body is directly or indirectly affected by tidal or wave effects. In such cases, not just different rainfall conditions (varying intensity and duration), but also different sea-levels and their effects on the network operation should be considered...

V. I. Pavlov, and J. Tromp, and E. P. Tito

The Hamiltonian method is applied to the problem of tsunami generation caused by a propagating rupture front and deformation of the ocean floor. The method establishes an alternative framework for analyzing the tsunami generation process and produces analytical expressions for the power and directivity of tsunami radiation (in the far-field) for two illustrative cases, with constant and gradually varying speeds of rupture front propagation.

YOHANES YOSEPH RAHAWARIN, and ELISA MARKUS KESAULIJA, and SERLLY LANOEROE

This research is executed aim to know the plant species and the way of exploiting permanent wood upon which traditional boat making by Yachai tribe in Mappi regency. The Method that used in this research is descriptive method with the structural semi interview technique and direct perception in field. Result of research indicate that the tribe Yachai exploit the plant species have permanent wood upon which traditional boat as much 26 species from 14 family. There are 8 wood species which is oft...

Joanna Czerwik-Marcinkowska

This study, carried out in 2010–11, focuses on species composition and distribution of cyanobacterial and algal communities colonizing ten caves (Biała, Ciemna, Koziarnia, Krakowska, Łokietka, Okopy Wielka Dolna, Sąspowska, Sypialnia, Zbójecka and Złodziejska Caves) in the Ojców National Park (South Poland). A total of 85 taxa were identified, 35 of them belonging to cyanobacteria, 30 chlorophytes, and 20 belonging to other groups of algae. Aerophytic cyanobacteria dominated in these calcareous ...

V.M. de Souza, and V.F. Alves, and M.T. Destro, and E.C.P. De Martinis

L. monocytogenes is a foodborne psychrotrophic bacterial pathogen of special importance for minimally processed foods. In this work, it was enumerated in samples of surubim fish by MPN technique. The population of L. monocytogenes was estimated as < 0.012 MPN/cm² in fresh and < 0.03 MPN/g in minimally processed fish.<br>L. monocytogenes é um patógeno psicrotrófico transmitido por alimentos, de importância especial para alimentos minimamente processados. Neste trabalho, a bactéria foi enumerada e...

Gregory Ejikeme Odo, and Nwani Christopher Didigwu, and Joseph Effiong Eyo

The fish yields of most Nigeria inland waters are generally on the decline for causes that may range from inadequate management of the fisheries to degradation of the water bodies. Sustainable exploitation requires knowledge of the ichthyofaunal composition in the water bodies. We did a survey of fish species in Anambra river basin for 22 months. Fish samples were collected using four different gears -hook and line of size 13, caste nets, gill nets, and cages of mesh sizes of 50mm, 75mm, and 100...

Agarwal R, and Saluja P, and Pham A, and Ledbetter K, and Bains S, and Varghese S, and Clements J, and Kim YH

Rishi Agarwal,1,2 Paramveer Saluja,1 Angela Pham,3 Karen Ledbetter,3 Sukhveer Bains,3 Seema Varghese,3 John Clements,1 Young H Kim41Synergy Medical Education Alliance, Michigan State University College of Human Medicine, Saginaw, Michigan, USA; 2MD Anderson Cancer Center, Houston, Texas, USA; 3Michigan State University, Saginaw, Michigan, USA; 4Seton Cancer Institute, Saginaw, Michigan, USAIntroduction: The current standard for treating operable early stage non-small cell lung cancer is surgical...

Rafael A. Magris, and G. F. G. Déstro

Spatial analysis and modeling tools were employed to predict suitable habitat distribution for threatened marine invertebrates and estimate the overlap between highly suitable areas for these species and the Brazilian marine protected areas (MPAs). Records of the occurrence of species were obtained from the collections included in the Ocean Biogeographic Information System (OBIS-Brazil), with additional records culled from the literature. The distribution data of 16 out of 33 threatened species,...

Xing Wang, and Jun Shi, and Shojie Zhang, and Zhifeng Zhang, and Xiaohe Li, and Zhijun Li

Background: Pedicle screw technique is commonly used treatment of adult spinal trauma, tumor, degeneration. The application of pedicle screws is very challenging in children because children have a fast growing spine and spinal pedicle morphology of children and adult has large difference. 3 D reconstruction individual navigation templates improve the success rate of pediatric pedicle screw system. This study is aimed to provide a precise method for lumbar spine pedicle screw placement in childr...

J. Savarino, and J. Kaiser, and J. Kaiser, and S. Morin, and D. M. Sigman, and M. H. Thiemens

Throughout the year 2001, aerosol samples were collected continuously for 10 to 15 days at the French Antarctic Station Dumont d&apos;Urville (DDU) (66&deg;40&apos; S, l40&deg;0&apos; E, 40 m above mean sea level). The nitrogen and oxygen isotopic ratios of particulate nitrate at DDU exhibit seasonal variations that are among the most extreme observed for nitrate on Earth. In association with concentration measurements, the isotope ratios delineate four distinct periods, broadly consistent with ...

Supamattaya, K., and Klowklieng, T., and Arunrat, S., and Kasornchandra, J., and Sukasem, N., and Sukrakanchana, N., and Kiriratnikom, S., and Ruangsri, J.

This study aimed to survey the prevalence of some infectious diseases e.g. Taura syndrome virus (TSV) and Infectious hypodermal and haematopoietic necrosis virus (IHHNV) in white shrimp (Penaeus vannamei) populations and to assess the impact of such infectious agents to indigenous aquatic animals in Thailand. Samples of both larval and juvenile or adult shrimp from each region of the country were collected and screened for TSV and IHHNV using the polymerase chain reaction (PCR) technique. Viruse...

K. C. Kaku, and J. S. Reid, and N. T. O'Neill, and P. K. Quinn, and D. J. Coffman, and T. F. Eck

The spectral deconvolution algorithm (SDA) and SDA+ (extended SDA) methodologies can be employed to separate the fine and coarse mode extinction coefficients from measured total aerosol extinction coefficients, but their common use is currently limited to AERONET (AErosol RObotic NETwork) aerosol optical depth (AOD). Here we provide the verification of the SDA+ methodology on a non-AERONET aerosol product, by applying it to fine and coarse mode nephelometer and particle soot absorption photomete...

Marla Melise de Oliveira Sousa, and Suzany Iasnaya Moreira Lopes, and Rodrigo Silva da Costa, and José Luís Costa Novaes

The Amazonian fish species Plagioscion squamosissimus(Sciaenidae) and Cichla monoculus(Cichlidae), have been widely introduced into different reservoirs in Brazil, and have caused many negative impacts on local fish fauna. The aim of this study was to evaluate the population structure (abundance, length structure, length-weight relationship, sex ratio, and length at first maturity) and the reprodutive period of these two species in the Santa Cruz Reservoir (built in 2002), located in the Brazili...

Beisenova A., and Boos E., and Haungs A., and Sadykov T., and Salihov N., and Shepetov A., and Tautayev Y., and Vildanova L., and Zhukov V.

The complex EAS installation of the Tien Shan mountain cosmic ray station which is situated at a height of 3340 m above sea level includes the scintillation and Cherenkov detectors of charged shower particles, an ionization calorimeter and a set of neutron detectors for registering the hadronic component of the shower, and a number of underground detectors of the penetrative EAS component. Now it is intended to expand this installation with a promising method for detecting the radio-emission gen...

Evelyn Barzotto, and Paulo Vanderlei Sanches, and Andréa Bialetzki, and Lilian Orvati, and Luiz Carlos Gomes

ABSTRACT Fish larvae and adults are morphologically distinct from each other and have different ecological requirements. Research on the dynamics of ichthyoplankton provides valuable information about the early stages of the life cycle of fish. This study analyzed the temporal and spatial distribution of the larval stages of three migratory species - Salminus brasiliensis (Cuvier, 1816), Prochilodus lineatus (Valenciennes, 1836) and Pseudoplatystoma corruscans (Agassiz, 1829) - to identify possi...

Rolf J. Kleber, and Wim Kleijn, and Ad de Jongh, and F. Jackie June ter Heide, and Trudy M. Mooren

Traumatised asylum seekers and refugees are clinically considered a complex population. Discussion exists on whether with this population treatment guidelines for post-traumatic stress disorder (PTSD) should be followed and Trauma-Focused Cognitive-Behavioural Therapy (TF-CBT) or Eye Movement Desensitisation and Reprocessing (EMDR) should be applied, or whether a phased model starting with stabilisation is preferable. Some clinicians fear that trauma-focused interventions may lead to unmanageabl...

M.O. Adewumi, , and O.E. Ayinde , , and A.H. Adenuga , and S.T. Zacchaeus

This study investigated the profitability of artisanal fishing in river Asa in Asa Local Government Area of Kwara State, Nigeria. A total of 80 respondents were randomly selected for the study. Data were collected by the use of structured set of questionnaires. Three research questions guided the study. Results of profitability analysis showed that an average fisherman makes a Gross Margin of ₦52883.99/fisherman/month. The problems of artisanal fishing included lack of storages facilities, lack ...

Deceliere-Vergès C., and Guillard J.

The contribution of CEN standard pelagic nets to the assessment of fish communities is tested by comparing three metrics (species composition, species abundance, and size structures) measured in accordance with the standard (i.e. using benthic nets only) to those calculated from the total effort (i.e. including pelagic nets). Hydroacoustic surveys were used simultaneously to assess fish densities in the pelagic habitat. The results show that in most cases the pelagic nets did not provid...

Romuald Czerpak, and Izabela K. Szamrej

The influence of optimal concentrations 5 x 10-6M - 10-6M of 11-deoxycorticosterone (mineralocorticoid) and prednisolone (glucocorticoid) on the growth (fresh and dry weight) and content of soluble proteins, reducing sugars and nucleic acids in the green alga Chlorella vulgaris (Chlorophyceae). Both corticosteroids at concentration 5 x 10-6M were most strongly active metabolically between the 5th-15th day of the cultivation and this probably was caused by their chemical biotransformation. The ap...

Gilmar Baumgartner, and Keshiyu Nakatani, and Maristela Cavicchioli, and Maria do Socorro Tenório Baumgartner

The spatial and temporal distribution and nychthemeral variation of fish larvae in six stations (Ivinhema, Patos, Paraná, Cortado, Baía and Guaraná) in the floodplain of the high Paraná river are provided. The paper also provides the relationship of this distribution to some environmental factors. From March 1992 to February 1993 ichthyoplanktonic samples were collected by conic cylindrical nets, with 0.5mm of mesh size and fluxometer attached, in 10-minute hauls at the surface and bottom during...

Zahra Ennis, and Karl Aiken

Spearfishing was becoming an increasingly important economic activity in the Caribbean as a result of socioeconomic factors related to underemployment and the low capital outlay for equipment. For a year (2011) we surveyed spearfishing in 23 Jamaican beaches. Spearfishing has expanded from approximately 1% of fishers in 1991 to about 10% in 2011. The fishery is larger than expected and probably produced 4 000tons per year. Though reef fishes dominated catches, other resources such as lobsters, c...

Javier Aldeco Ramírez, and Martha Signoret Poillon, and María Adela Monreal Gómez, and David Alberto Salas de León

Intratidal variability and flux of salt, chlorophyll-a and suspended materials were evaluated in a shallow tropical tidal channel linking a coastal lagoon to the western Gulf of Mexico. Velocity, temperature and conductivity were used to calculate the fluxes. Data were recorded during three tidal velocity cycles (tvc) under extreme river discharge conditions. Chlorophyll-a and suspended materials were determined below the surface. In both seasons (dry and rainy), the flow was ebb-dominated and w...

Marta Goreth Marinho Lima

In this paper, we understand that the process of migration, beyond geographic change, also implies cultural change. The aim of the paper therefore, is to verify which cultural traces remain and/or are redefined by the migrants in the city and which meaning they possess in their daily life. The methodological path includes fieldwork and direct observations, interviews and telling of life stories. As a research instrument, I use the stories of the migrants as an understanding of the relations and ...