Mechanoreception, a possible mechanism for food fall detection in deep-sea scavengers
52
Citation
55
Reference
10
Related Paper
Citation Trend
Keywords:
Seafloor Spreading
Abstract White spot syndrome virus has been a threat to the global shrimp industry since it was discovered in Taiwan in 1992. Thus, shrimp‐producing countries have launched regulations to prevent import of WSSV‐infected commodity shrimp from endemic areas. Recently, cooked shrimp that is infected with WSSV tested positive by PCR. However, there is no study to determine the infectivity of WSSV in cooked shrimp that tested positive by PCR. In the present study, WSSV‐infected shrimp were cooked at boiling temperature for different times including 0, 1, 3, 5, 10 and 30 min. Upon exposure to boiling temperature, WSSV‐infected shrimp were fed to SPF shrimp ( Litopenaeus vannamei ). The result showed experimentally challenged shrimp from 0‐min treatment (positive control) indeed got infected with WSSV. However, experimentally challenged shrimp that were fed tissues boiled at 1, 3, 5, 10 and 30 min were not infected with WSSV. Mortality data showed that only the positive control (0‐min) treatment displayed high mortality, whereas no mortality was observed in any other treatment category. These findings suggest that cooking shrimp at boiling temperature for at least 1 min might prevent any potential spread of WSSV from endemic countries to other geographical areas where WSSV has not yet been reported.
Litopenaeus
White spot syndrome
Penaeus monodon
Infectivity
Penaeidae
Cite
Citations (3)
Penaeus
Cite
Citations (35)
Fermented fish
Cite
Citations (9)
The Japanese shrimp industry depends on importing shrimp from other countries. However, little information is available on mercury speciation and selenium (Se) concentrations in commercial shrimp available in Japan. The present study determined the concentrations of total mercury (T-Hg), methylmercury (MeHg), and Se in the muscles (wet weight) of imported and domestic commercial shrimp from Kumamoto and Kagoshima prefectures to obtain information for assessing the risk of MeHg exposure. The median concentrations of T-Hg, MeHg and Se in shrimp imported from three different countries were, respectively: black tiger shrimp (n = 18), 15.8, 14.4, and 415 ng/g; Vannamei shrimp (n = 25), 11.4, 11.2, and 292 ng/g; and white shrimp (n = 26), 26.8, 26.1, and 396 ng/g. There were significant differences in T-Hg and MeHg concentrations between shrimp imported from different countries. The median concentrations of T-Hg, MeHg and Se in shrimp of Japanese origin were, respectively: Shiba shrimp (n = 10), 15.9, 15.0, and 270 ng/g; Kuruma shrimp (n = 10), 79.9, 75.9, and 390 ng/g; and Ashiaka shrimp (n = 10), 36.1, 34.1, and 303 ng/g. The percentages of MeHg in T-Hg were between 90% and 99%, with MeHg levels in the imported and domestic commercial shrimp lower than the Japanese regulation of 300 ng/g for fish. The mean Se/T-Hg molar ratios (16-160) were comparatively higher than those previously reported in fish. Overall, this survey suggests that shrimp commercially available in Japan will not pose a particularly high risk regarding MeHg exposure to consumers.
Methylmercury
Mercury
Cite
Citations (10)
Abstract The aim of this study was to assess the effect of gamma radiation alone or in combination with heat on the immunoreactivity of shrimp. Peeled shrimp muscle was subjected to gamma radiation (1, 5, 10 and 15 kGy) followed by boiling (5 min, 10 min and 15 min). Shrimp protein extract (PE) and a major allergen (Pen a 1) from treated shrimp were analysed by SDS‐PAGE and immunoblot using a specific IgE antibody from patients who were allergic to shrimp. Results showed that gamma radiation + heat could significantly affect shrimp immunoreactivity. The immunoreactivity of PE and Pen a 1 was also determined by using competitive inhibition ELISA (Ci‐ELISA). The IC 50 of PE and Pen a 1 from shrimp treated with gamma radiation + heat was 5‐ to 30‐fold higher than that of untreated shrimp. The immunoreactivity of gamma irradiated shrimp decreased with increasing dose of radiation. Copyright © 2007 Society of Chemical Industry
Penaeus
Penaeus monodon
Cite
Citations (29)
Currently, environmental studies describing levels of polychlorinated biphenyls (PCBs) in imported shrimp are limited, particularly studies of aquaculture shrimp. In the present study, we measured concentrations of the 209 PCB congeners in 84 uncooked, warm-water shrimp samples from the United States and 14 other countries in three continents. Total PCB and dioxin-like PCB (DL-PCB) levels were not significantly different between wild-caught and farm-raised shrimp, and the distribution of total PCB levels did not vary considerably by country of origin although significant differences were observed in some cases. Regional trends in both total PCB and DL-PCB concentrations were observed, with the highest concentrations measured in shrimp from North America followed by Asia and then South America. The lower chlorinated homologues (i.e., mono-, di-, and tri-PCBs) generally comprised a greater fraction of the total levels measured in farm-raised shrimp and shrimp from Asia and South America whereas higher chlorinated homologues (i.e., hepta-, octa-, nona-, and deca-PCBs) contributed more to levels in wild-caught shrimp and shrimp from North America. Estimated daily intake of PCBs associated with shrimp consumption ranged from 2 pg/kg/d (shrimp from South America) to 15 pg/kg/d (shrimp from North America). Results from the present study were comparable to other studies conducted recently and demonstrate that exposure to PCBs from consumption of farm-raised and wild-caught shrimp imported from different regions are not likely to pose any health risks.
Cite
Citations (7)
Vannamei shrimp (Litopenaeus vannamei) holds significant economic importance in Shrimponesia as a prominent shrimp commodity. The post-larval stage often encounters challenges, primarily due to the shrimp's limited ability to adapt and survive in a new environment. Stocking density is a crucial factor influencing the growth and production performance of vannamei shrimp culture. This study aims to assess the optimal stocking density for achieving optimal growth and survival in L. vannamei. A 40-day maintenance trial was conducted at UD Mina Rahayu Kalianda to investigate the impact of different stocking densities on water quality in the maintenance media. The study utilized containers with varying stocking densities: treatment A (1 shrimp/L), treatment B (1.5 shrimp/L), and treatment C (2 shrimp/L), each with three replications. The findings revealed survival rates (SR) of 83.33% for treatment A, 62.78% for treatment B, and 58.33% for treatment C. Mean Body Weight (MBW) values were recorded as 1.2592 g/shrimp for treatment A, 1.1216 g/shrimp for treatment B, and 0.7728 g/shrimp for treatment C. Average Daily Growth (ADG) results showed 0.0313 g/shrimp for treatment A, 0.0279 g/shrimp for treatment B, and 0.0192 g/shrimp for treatment C. Based on the study, the recommended stocking density for white vannamei shrimp is 40 shrimp/L, demonstrating improved growth and survival rates for this species.
Litopenaeus
Penaeidae
Shrimp farming
Cite
Citations (1)
ABSTRACT An intensive research program on the post-harvest technology of shrimp has been carried out in Indonesia, especially at Slipi Research Station for Marine Fishery, Jakarta. The research concentrated on live and fresh shrimp handling, processing and waste utilization. Techniques to reduce the bacterial growth and blackspot formation rates have been investigated in order to extend the acceptable quality of fresh shrimp. The shrimp products which have been investigated were frozen shrimp, canned shrimp, dried shrimp, fermented shrimp paste powder, shrimp loaves and shrimp crackers. Shrimp waste was used in the production of shrimp loaves, protein hydroly-sate, shrimp meal, shrimp silage and chitin/chitosan. This paper reviews the results of this research. Key Words: ShrimpIndonesiashelf-lifewaste utilizationshrimp productsListeria monocytogenesmusselsD-valuesblanching
Cite
Citations (11)
Kampung Laut is an area where fishing activities are done. Fishermen get profit by catching shrimp. One of the tools used is sondong. The kinds of shrimp that are widely catched in there are lime, dogol, and yellow shrimp. The important thing in catching shrimp is paying attention to its size. The suitable size for the catching is a goal in the management of good fisheries to conserve shrimp resources in water. This study aims to see the characteristics of the shrimp caught by sondong in Kampung Laut, Tanjung Jabung Timur Regency. Method used is simple random sampling, the number of shrimp samples taken is 10% of the total catch per shrimp species. The results showed that the lime shrimp taken with a sondong fishing tool in the Kampung Laut, collected 9,10-14,80 cm with a percentage of shrimp worth capturing 61%. The size of the dogol shrimp caught in the range of 8.70-14.00 cm with a percentage of shrimp worth catching 60%. The size of the yellow shrimp is around 7.50-12.00 cm with the percentage of shrimp worth catching 53%. The correlation coefficient value of lime shrimp weight length is 2.89, dogol shrimp 2.30, and yellow shrimp 2.27. The conclusion is shrimp taken with sondong fishing tool in Kampung Laut has various sizes, ranging from small to large sizes. The growth patterns of lime shrimp, dogol shrimp, and yellow shrimp showed negative allometric growth properties. Percentage of shrimp size that is catchable is greater compared to uncatchable shrimp.
Cite
Citations (0)