scholarly journals The effect of COVID-19 pandemic on the shrimp industry of Iran

Marine Policy ◽  
2021 ◽  
pp. 104900
Author(s):  
Mohammad Khalil Pazir ◽  
Amirhossein Ahmadi ◽  
Parisa Hossein Khezri
Keyword(s):  
Shrimp Industry

scholarly journals Shrimp Export from Benin vs Food Safety in Europe: Reconcilable Interests?

2014 ◽  
Vol 5 (2) ◽  
pp. 187-200
Author(s):  
Kévine Kindji ◽  
Michael Faure
Keyword(s):  
Food Safety ◽  
Market Share ◽  
Control Policy ◽  
Legal Order ◽  
Eu Policy ◽  
Shrimp Industry ◽  
Fishery Products ◽  
The Eu

In order to secure their fishery products market share in the EU, third countries, especially the developing ones, tend to transplant EU requirements into their domestic legal order. In reality, theses transplanted laws do not correspond to measures to reach a level of protection needed by the country of destination. Based upon the case of Benin, this paper intends to show that when these legal transplants are adversely made, they can in some cases have disastrous effects. It can be argued that an unintended result of EU policy was that it contributed to the collapse of the shrimp industry in Benin. The paper moreover argues that despite the stringency of the EU requirements, the implementation of its control policy might inadequately protect European consumers of shrimp.

scholarly journals Implementation of the mixed linear models in experimental infections with WSSV in the withe shrimp Litopenaeus vannamei

2017 ◽  
Vol 43 (3) ◽  
pp. 557-565
Author(s):  
María Alejandra Ramírez-Ruíz ◽  
Raúl Simá-Álvarez ◽  
Edgar Tórres-Irineo ◽  
Rossanna Rodríguez-Canul
Keyword(s):  
Litopenaeus Vannamei ◽  
Host Response ◽  
White Spot Syndrome Virus ◽  
Linear Models ◽  
Severe Infection ◽  
The Other ◽  
Mixed Linear Models ◽  
Dna Injection ◽  
Shrimp Industry ◽  
Experimental Strategies

The White Spot Syndrome Virus has been very detrimental for the shrimp industry. Up to date there is no cure for the disease, thus, it is necessary to implement reliable experimental strategies to evaluate the effect of drugs and the host response during the prognosis of the disease. In this study, we evaluated two ways of infection with WSSV (200 copies WSSV-DNA) (injection and immersion), at constant temperature (26 ± 0.5ºC), in juveniles of Litopenaeus vannamei (4.8 ± 0.38 g) in intermolt stage. In the infection by injection, the organisms were lethargic with reddish appearance 2 days after infection and mortality (100%) was observed within 2-5 days: 63% organisms with light degree of infection [20 copies of DNA & 1-5 Cowdry A-type inclusions in hypertrophied nuclei (CAI)/200 fields], 21% had moderate infection (200 copies of DNA & 1-2 CAI/20 fields) and 16% severely infected (2000 copies of DNA & more than 10 CAI/field). No mortality was observed in the controls. In the infection by immersion, the signs of WSSV were observed 3 days after infection: 38% of mortality was observed during 3-9 days: 25% of the organism with light degree of infection (20 copies of DNA & 1-2 CAI/20 fields), 5% moderately infected (200 copies of DNA & 1-2 CAI/20 fields) and 8% with severe infection (2000 copies of DNA & 1-5 CAI/2 fields. The other 62% organisms were necropsied at day 12 and tested positive to the WSSV-PCR (light infection = 20 copies of DNA), but did not show CAI by histology. No mortality was observed in the controls. For the statistical analysis, the data did not fit the criteria of independence and linearity needed for the analyses of variance, thus we used instead the mixed linear models and were able to observe a better prediction: in the injected organisms, the mortality reached the highest peak at day 5 after infection. In the organisms infected by immersion, the highest peak or mortality was observed at day 9 after infection. The analysis of variance of Kenward-Roger indicated significant differences between the days of mortality (F = 20.1, P = 0.001), as well as among the ways of infection (Random analysis) (P = 0.007).

An Overview of China's Cultured Shrimp Industry

2007 ◽  
pp. 197-222 ◽  
Author(s):  
Yongming Yuan ◽  
Junning Cai ◽  
Pingsun Leung
Keyword(s):  
Shrimp Industry

scholarly journals Horizontal Plasmid Transfer Promotes the Dissemination of Asian Acute Hepatopancreatic Necrosis Disease and Provides a Novel Mechanism for Genetic Exchange and Environmental Adaptation

mSystems ◽  
2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Songzhe Fu ◽  
Dawei Wei ◽  
Qian Yang ◽  
Guosi Xie ◽  
Bo Pang ◽  
...  
Keyword(s):  
Horizontal Transfer ◽  
Genetic Exchange ◽  
Environmental Adaptation ◽  
Shrimp Farming ◽  
Transmission Mode ◽  
Farming Practices ◽  
Whole Genome Analysis ◽  
Content Type ◽  
Shrimp Industry ◽  
Acute Hepatopancreatic Necrosis Disease

ABSTRACT Vibrio parahaemolyticus is an important foodborne pathogen and has recently gained particular notoriety because it causes acute hepatopancreatic necrosis disease (AHPND) in shrimp, which has caused significant economic loss in the shrimp industry. Here, we report a whole-genome analysis of 233 V. parahaemolyticus strains isolated from humans, diseased shrimp, and environmental samples collected between 2008 and 2017, providing unprecedented insight into the historical spread of AHPND. The results show that V. parahaemolyticus is genetically diverse and can be divided into 84 sequence types (STs). However, genomic analysis of three STs of V. parahaemolyticus identified seven transmission routes in Asia since 1996, which promoted the transfer of an AHPND-associated plasmid. Notably, the insertion sequence (ISVal1) from the plasmid subsequently mediated the genetic exchange among V. parahaemolyticus STs and resulted in the deletion of an 11-kb region regulating cell mobility and the production of capsular polysaccharides. Phenotype assays confirmed that this deletion enhanced biofilm formation, providing a novel mechanism for environmental adaptation. We conclude that the transmission mode of AHPND consists of two steps, the transmission of V. parahaemolyticus and the subsequent horizontal transfer of the AHPND-associated plasmid. This plasmid allows ISVal1 to mediate genetic exchange and improve pathogen fitness in shrimp ponds. Current shrimp farming practices promoted such genetic exchanges, which highlighted a risk of the emergence of new virulent populations, with potentially devastating consequences for both aquaculture and human health. This study addressed the basic questions regarding the transmission mechanism of AHPND and provided novel insights into shrimp and human disease management. IMPORTANCE Global outbreaks of shrimp acute hepatopancreatic necrosis disease (AHPND) caused by V. parahaemolyticus represent an urgent issue for the shrimp industry. This study revealed that the transmission mode of AHPND consists of two steps, the transregional dissemination of V. parahaemolyticus and the horizontal transfer of an AHPND-associated plasmid. Surprisingly, the introduction of the AHPND-associated plasmid also offers a novel mechanism of genetic exchange mediated by insertion sequences, and it improved the fitness of V. parahaemolyticus in a harsh environment. The results presented herein suggest that current shrimp farming practices promote genetic mixture between endemic and oceanic V. parahaemolyticus populations, which introduced the plasmid and accelerated bacterial adaptation by the acquisition of ecologically important functions. This entails a risk of the emergence of new virulent populations both for shrimp and humans. This study improves our understanding of the global dissemination of the AHPND-associated plasmid and highlights the urgent need to improve biosecurity for shrimp farming.

scholarly journals Shrimp Processing in the Southeast: Supply Problems and Structural Change

1974 ◽  
Vol 6 (1) ◽  
pp. 247-252 ◽  
Author(s):  
Fred J. Prochaska ◽  
Chris O. Andrew
Keyword(s):  
United States ◽  
Structural Change ◽  
Structural Changes ◽  
The United States ◽  
Government Officials ◽  
Supply Situation ◽  
Southeast Region ◽  
Industry Organization ◽  
Shrimp Industry

A growing deficit in shrimp landings relative to processing needs in the Southeast Region of the United States concerns both industry and government officials. Structural changes in the shrimp industry are encouraged by the growing supply deficit. The shrimp supply situation and resulting industry organization changes are the primary concerns of this paper.

Aquacultural biotechnology in Thailand: the case of the shrimp industry

2008 ◽  
Vol 10 (6) ◽  
pp. 588 ◽  
Author(s):  
Morakot Tanticharoen ◽  
Timothy W. Flegel ◽  
Watcharin Meerod ◽  
Uthaiwan Grudloyma ◽  
Nuchjaree Pisamai
Keyword(s):  
Shrimp Industry

scholarly journals Development of protein enriched shrimp crackers from shrimp shell wastes

2013 ◽  
Vol 10 (2) ◽  
pp. 367-374 ◽  
Author(s):  
M Khan ◽  
AKMA Nowsad
Keyword(s):  
Room Temperature ◽  
Sensory Quality ◽  
Bacterial Load ◽  
Shell Protein ◽  
Hot Air ◽  
High Quality Protein ◽  
Shrimp Shell ◽  
Shrimp Industry ◽  
Shell Powder

A recipe of shrimp cracker (a type of crispy biscuit) enriched with shrimp shell protein was developed from underutilized shrimp shell wastes and the effects of different amount of shrimp shell powders on the quality and shelf life of the products were studied. Shrimp industry wastes (head, appendages, carapaces, and shell) were thoroughly washed, dried in hot air oven at 60°C for 24 h and ground by a blender. Fine shrimp shell powder thus obtained was used for making shrimp crackers. Hydrolyzed vegetable oil, was beaten by hand and other ingredients such as powder milk, sugar, oil, baking powder, flour and vanilla essence were mixed to make a dough. Various levels of shrimp shell powder (5%, 10%, and 20%) were mixed to the dough to enrich with shrimp protein. The dough was kept flatted in a tray, cut into pieces of different shape by dies and put into the oven at 100°C for 8 minutes. Increasing the quantity of shrimp shell powder in shrimp crackers increased the protein content but the quality in terms of taste, color and flavor was slightly decreased. Using of 10% shrimp shell powder obtained the best quality shrimp crackers, in terms of both protein enrichment and sensory quality. Quality of shrimp crackers was tested by both subjective and objective methods. Products made with 10% shrimp shell powder had an acceptable bacterial load in refrigeration up to 45 days but in room temperature up to 30 days. Low storage quality in room temperature might be due to inadequate packaging in the laboratory condition. This research revealed that high quality protein fortified shrimp crackers could be manufactured from unutilized shrimp shell wastes.DOI: http://dx.doi.org/10.3329/jbau.v10i2.14930 J. Bangladesh Agril. Univ. 10(2): 367-374, 2012

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