scholarly journals Marine shrimp farming in the state of Ceará: an analysis of the productive and economic parameters, in the period 2003-2012

2019 ◽  
Vol 5 (12) ◽  
pp. 33525-33540
Author(s):  
Rommel Rocha Sousa ◽  
Hudson Makson Rocha Lucena ◽  
Lívia Rodrigues Guimarães ◽  
Manuella Gazzineo Moraes ◽  
Rafael Lustosa Maciel ◽  
...  
Keyword(s):  
The State ◽  
Shrimp Farming ◽  
Marine Shrimp ◽  
Economic Parameters

scholarly journals Inhibitory effect of sodium metabisulphite and chlorine on growth of Aspergillus spp. and Penicillium spp. strains isolated from marine shrimp

2013 ◽  
Vol 43 (9) ◽  
pp. 1721-1726 ◽  
Author(s):  
Ygor Flávio de Moraes Santos ◽  
Átyla Peeter Batista Veloso ◽  
Rodrigo Maciel Calvet ◽  
Maria Marlúcia Gomes Pereira ◽  
Carina Maricel Pereyra ◽  
...  
Keyword(s):  
Inhibitory Effect ◽  
Shrimp Farming ◽  
Penicillium Species ◽  
Sodium Metabisulphite ◽  
Marine Shrimp ◽  
Total Fungi ◽  
Frozen Shrimp ◽  
Vitro Effect ◽  
Penicillium Spp

The sodium metabisulphite (SMB) is used in shrimp farming to prevent melanosis and the 5.0 ppm chlorine (CL) concentration used in the shrimp processing is efficient as a bactericide, but there is no evidence of the effectiveness of these chemical compounds as fungicides. Therefore, the aim of this study was to evaluate the in vitro effect of sodium metabisulphite (SMB) and chlorine (CL) on the growth of Aspergillus and Penicillium species isolated from marine shrimp in different stages of processing. The samples were collected from a frozen shrimp processing industry, located in Piauí State, Brazil. The total fungi and occurrence of Aspergillus and Penicillium species were evaluated. For in vitro sensibility test using the diffusion disk in agar method, five concentrations of SMB (0%, 1%, 3%, 5% and 10%) and six of CL (0, 1, 2, 3, 4 and 5 µg mL-1) were used. The fungal counts in the different processing stages ranged from 1.74 to 3.38 CFU g-1. Twenty-nine Aspergillus strains were isolated, prevailing A. versicolor (59.3%) and twenty-two of Penicillium, prevailing P. citrinum (74%). One strain of A. flavus was AFB1 producer. All the isolated strains of P. citrinum produced citrinin. All tested species were in vitro sensitive to 3% of SMB, except the A. flavus. The 10% concentration of SMB inhibited the in vitro growth of all strains. The CL concentrations tested did not inhibit the studied species growth and SMB concentrations above 3.0% inhibited in vitro the growth of the tested strains.

scholarly journals Diagnóstico do Licenciamento Ambiental da Carcinicultura no Estado do Rio Grande do Norte, Brasil

2020 ◽  
Vol 12 (7) ◽  
pp. 2392
Author(s):  
Iáskara Michelly De Medeiros Silveira ◽  
Daniele Bezerra dos Santos ◽  
Franklin Roberto da Costa ◽  
Rodrigo Herico Rodrigues de Melo Soares ◽  
Tarcisio Augusto Gonçalves Junior ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Rio Grande ◽  
Environmental Studies ◽  
Environmental Problems ◽  
The State ◽  
Shrimp Farming ◽  
Southern Coast ◽  
Environmental Licensing ◽  
Development And Environment ◽  
Shrimp Farms

Em função do crescimento desordenado da carcinicultura no Nordeste do Brasil, nesta pesquisa foi realizado um levantamento dos licenciamentos ambientais voltados à carcinicultura do Estado do Rio Grande do Norte, ao longo da década de 2005 a 2015, referente ao número de empreendimentos licenciados por ano, porte dos empreendimentos por tipos de licenças outorgadas e regiões com maior densidade de fazendas de carcinicultura. A pesquisa foi realizada através de avaliação documental, com dados cedidos pelo Instituto de Desenvolvimento Sustentável e Meio Ambiente (IDEMA, 2016), e embasado nas legislações nacionais e estaduais pertinentes à área de estudo. No total, foram analisadas 698 licenças, sendo a maioria das fazendas de porte médio e solicitantes de licenças de operação, havendo uma maior concentração de empreendimentos de diferentes portes no litoral Sul do estado. Evidenciou-se uma grande quantidade de fazendas (64,18%) com solicitação de licenças atrasadas, além da constatação de que o maior número de licenças foi expedido no período em que mais ocorreram problemas de ordem ambiental e econômica na atividade.  Environmental Licensing diagnosis of Srimp farming in the state of Rio Grande do Norte, BrazilA b s t r a c tIn this article, a survey was made regarding the environmental licensing of shrimp farming in Rio Grande do Norte, during the decade between 2005 to 2015, in relation to the number of enterprises licensed per year, size of enterprises by type of licenses granted and regions with higher density of shrimp farms. The research was done through documentary evaluation, with data provided by the Institute for Sustainable Development and Environment (IDEMA). A total of 698 licenses were identified, with the majority of medium-sized farms and applicants for operating licenses, with a higher concentration of micro, small, medium and large ports in the southern coast of the state. A large number of farms with a request for delayed licenses (64,18%) were evidenced, in addition to the finding that the highest number of licenses was issued in the period in which there were more economic and environmental problems in the activity.Keywords: Environmental studies. Aquaculture. Shrimp. Environmental vulnerability. 

DNA Binding Activity of Marine Shrimp LvProfilin

2021 ◽  
Author(s):  
Yanisa Laoong-u-thai ◽  
Warapond Wanna ◽  
Autaipohn Kaikaew
Keyword(s):  
Dna Binding ◽  
Rna Binding ◽  
3D Structure ◽  
Binding Activity ◽  
Shrimp Farming ◽  
Binding Prediction ◽  
3D Protein Structure ◽  
Dna Binding Activity ◽  
Marine Shrimp

Shrimp farming is an important business in Thailand and worldwide. The study of molecular biology and biochemical pathway of the key molecules controlling muscle growth is an essential to improve shrimp livestock. Profilin is a pivotal protein in muscle formation, especially actin protein. Its nuclear function has been reported in many species for gene regulation. Here in this work, we characterized the function of LvProfilin, a marine shrimp profilin from Litopenaeus vannamei, both in silico and in vitro. The phylogenetic tree of LvProfilin among organisms and its 3D protein structure showed that LvProfilin was highly conserved among shrimp and arthropods. The homology modeling of its 3D structure revealed 3 alpha-helices and 6 beta-strands similar to most eukaryotic profilins. To interpret its possible function, the gene expression of LvProfilin in various tissues was performed. We found that this gene was expressed in various tissues. This result may imply that LvProfilin could share a common function in all tissues. Nuclear activity has been a promising function of LvProfilin. We performed a DNA/RNA binding prediction analysis using DRNApred. The result indicated that Lysine-90 and Threonine-91 were the putative DNA-binding sites with the probability of 63.12% and 54.16%, respectively. Its binding activity was confirmed in vitro which bound stronger to single strand DNA than double strand DNA. To our best knowledge, this is the first report of DNA binding activity of profilin in invertebrates.

scholarly journals The Present and Future of Audio Description and Subtitling for the Deaf and Hard of Hearing in Spain

2009 ◽  
Vol 54 (2) ◽  
pp. 248-263 ◽  
Author(s):  
Francisco Utray ◽  
Ana María Pereira ◽  
Pilar Orero
Keyword(s):  
Hard Of Hearing ◽  
State Of The Art ◽  
The State ◽  
Popular Media ◽  
Audio Description ◽  
The Future ◽  
Economic Parameters ◽  
Digital Broadcasting ◽  
Audiovisual Translation

Abstract The aim of this article is to describe the state of the art in Spain of the two most popular media accessible modalities: audio description and subtitling for the deaf and hard of hearing. The article traces their origin and development up to the present time. It also examines standards and laws and analyses the economic and operative implications of media accessibility, which does not follow traditional economic parameters. The article aims to define the profile of future describers and subtitlers in Spain, who are currently being trained in the field of Audiovisual Translation. It concludes by proposing a wide variety of measures to be taken in order to reach full media accessibility and raise popular awareness of these services which are available now and will be increasingly so in the future with the change from analogous to digital broadcasting.

scholarly journals Advances in the use of photoheterotrophic, mixotrophic and multi-trophic systems in marine shrimp farming

2020 ◽  
Vol 4 (1) ◽  
pp. 36-51
Author(s):  
Laenne Barbara Silva de Moraes ◽  
Alfredo Olivera Gálvez
Keyword(s):  
Environmental Conditions ◽  
Water Exchange ◽  
Biomass Yield ◽  
Shrimp Farming ◽  
Operating Costs ◽  
Food Supplementation ◽  
Marine Shrimp ◽  
Natural Productivity ◽  
Nitrogen Phosphorus ◽  
Intensive System

The growth of aquaculture can cause different environmental impacts, from the use of large amounts of water to the excessive release of effluent. Shrimp farming can be done in different systems: extensive, semi-intensive, intensive and super-intensive. Extensive systems with low productivity (<500 kg ha-1 year-1), exhibit low technological levels and less control of environmental conditions. The semi-intensive system requires food supplementation, reasonable natural productivity, biomas yield of 3,000 - 5,000 kg ha-1 year-1) and water change (5 to 10 % day-1). To increase production, different culture systems are used, such as photoheterotrophic, heterotrophic and mixotrophic, with minimal water exchange (0.5 to 3 % day-1), providing greater biomass yield (intensive 10 to 20 ton ha-1 cycle-1 and super-intensive 20 up to 40 ton ha-1 cycle-1). These can be developed in nursery or grow-out tanks, but with high operating costs, high technological levels, disease control and better control of environmental conditions. However, intensive and super-intensive systems accumulate nitrogen, phosphorus and solid waste that can be transformed into biomass in multi-trophic aquaculture systems. In this review, we will discuss the effects of these systems on water quality and productivity of marine shrimp. The photoheterotrophic, mixotrophic and multi-trophic systems are interesting alternatives to the photoautotrophic systems in shrimp production, demonstrated by the higher zootechnical performance, as well as the environmental quality, since these models promote the minimum exchange of water and the transformation of nutrient residues in biomass.

scholarly journals Evaluation of the return of investments in transport route development

2021 ◽  
Vol 112 ◽  
pp. 00039
Author(s):  
Ulyana I. Malakhova ◽  
Victoriya A. Vinichenko
Keyword(s):  
Business Model ◽  
The State ◽  
Direct Connection ◽  
Passenger Traffic ◽  
Managerial Decisions ◽  
Economic Parameters ◽  
International Transport ◽  
In Transit ◽  
Double Track

The network of Russian railways provides the movement of goods and passengers both within the country and in the context of international transport, through which goods from different countries go in transit. In Russia the railway lines are double-track and fully electrified on the main directions of the EastWest transport corridor. The modernization of the branches from the Trans-Siberian railway to the state border with China and Mongolia continues. The paper describes the business model of the project, the corresponding calculations for managerial decisions on the launch of a direct train route Novosibirsk – Urumqi and return. During the study, the monitoring of existing routes of passenger traffic was carried out: the capacity of railway routes, frequency, duration and capacity of alternative crossings. The result of the study is a developed model for launching a project of a direct connection between Novosibirsk and Urumqi and return. The paper describes the stations that are of particular importance for the route – the place of customs inspection, rearrangement of wheel sets of cars due to the different wheel gauge of neighboring countries. The result of the study is a multifunctional model of a transport route that allows analyzing the economic parameters of any route of a railway communication. According to the model, it is possible to analyze various parameters of the revenue side of the project, calculate the amount of investments and indicators for the assessment of the effectiveness of real investments.

Degradation of Mangrove Ecosystems Due to Shrimp Farming Activities and Its Conflicts of Interest in the State of Bahia, Brazil

2017 ◽  
Vol 04 (03) ◽  
pp. 224-230
Author(s):  
Thiago Awad Prudente ◽  
Maria A. N. de Meirelles ◽  
José Â. S. A. dos Anjos ◽  
Roberto G. dos Santos
Keyword(s):  
Conflicts Of Interest ◽  
The State ◽  
Shrimp Farming ◽  
Mangrove Ecosystems

scholarly journals Evaluation of space adequateness of shrimp farms in Southern Brazil

2011 ◽  
Vol 83 (3) ◽  
pp. 1069-1076 ◽  
Author(s):  
Rodrigo R. Freitas ◽  
Carlos Hartmann ◽  
Paulo R. A. Tagliani ◽  
Luís H. Poersch
Keyword(s):  
Remote Sensing ◽  
Rio Grande ◽  
Google Earth ◽  
Shrimp Farming ◽  
Geographical Information ◽  
Patos Lagoon ◽  
Marine Shrimp ◽  
Patos Lagoon Estuary ◽  
Shrimp Farms ◽  
Good Access

In Rio Grande do Sul State, there are four marine shrimp (Litopenaeus vannamei) farms in the municipal districts of São José do Norte and Rio Grande, and other four with previous license for operation. Thus, the present study aimed to identify and characterize areas for marine shrimp farming located in the Southern portion of the Patos Lagoon estuary (32º00'S 52º00'W) by employing the analysis of satellite remote sensing (Landsat TM and ETM+/Google Earth), airborne remote sensing (35mm system ADAR 1000), terrestrial remote sensing (RICOH 500SE), and field expeditions, integrating data in a Geographical Information System (IDRISI Andes). As a result, the enterprises were built on coastal fields or in obliterated dune areas, which are favorable for cultivation. The proximity of possible consuming markets and local labor, relatively good access roads and local technical support also favor the projects. However, there must be caution in terms of changes in the original projects, which could cause environmental impacts and noncompliance of environmental norms, such as the occupation of salt marsh areas. Based on the obtained information, instruments can be created to help inherent legal decision-making to manage the activity for futures enterprises.

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