The Heart Ultrastructure of Praunus flexuosus (Muller) and Mysis relicta (Loven) (Crustacea, Mysidacea)

1981 ◽  
Vol 1 (4) ◽  
pp. 558 ◽  
Author(s):  
Are Nylund
Keyword(s):  
Mysis Relicta ◽  
Heart Ultrastructure

Studi fortifikasi hidrolisat protein udang rebon (mysis relicta) pada mie sagu

2020 ◽  
Vol 6 (1) ◽  
pp. 039
Author(s):  
Trie Omitha Purba ◽  
Suparmi Suparmi ◽  
Dahlia Dahlia
Keyword(s):  
Experimental Method ◽  
Proximate Composition ◽  
Protein Hydrolysate ◽  
Quality Standards ◽  
Processing Technology ◽  
Fish Processing ◽  
Mysis Relicta ◽  
Marine Chemistry ◽  
Randomized Design

The study aimed to determine the effect of rebon shirmp (mysis relicta) protein hydrolisate fortification to the sago noodles and to observe the characteristics of the sago noodles produced. The research was carried on in February – April 2019 in the  Laboratory of Fish Processing Technology, Integrated Laboratories, and the Fisheries and Marine Chemistry Laboratories at the Universitas Riau. The method used was the experimental method, designedas a non-factorial complete randomized design. The treatment conducted was addingof rebon shrimp protein hydrolysate at 4 level concentrations (0%, 5%, 10% dan 15%). The variables assessed were the quality of organoleptic (appearance, texture, odor, flavor) and the proximate composition. The results showed that the proteinhydrolysate of rebon shrimp at concentration of 15% was the best treatment and in accordance to the quality standards of dried noodles (SNI 01-2974-1996), indicated bythe highest organoleptic qualityof the dried noodles produced, including: the appearance that was brown, less attractive, whole, less neat; the texture that was dry and compact; the aroma that was quite fragrant, spesific rebon shrimp; and the taste that was quite tasty and shrimp flavored. The proximate composition ofthe best product was presented by the content of moisture, ash, fat, protein, and carbohydrate at 7.55%,1.02%, 0.17%, 16.76%, and 74.49%, respectively.Keywords: Hydrolysate protein, rebon shrimp, sago noodles

The effects of temperature and predator-prey interactions on the migration behavior and vertical distribution of Mysis relicta

2007 ◽  
Vol 52 (4) ◽  
pp. 1599-1613 ◽  
Author(s):  
Brent T. Boscarino ◽  
Lars G. Rudstam ◽  
Shylene Mata ◽  
Gideon Gal ◽  
Ora E. Johannsson ◽  
...  
Keyword(s):  
Vertical Distribution ◽  
Migration Behavior ◽  
Mysis Relicta ◽  
Predator Prey ◽  
Effects Of Temperature

Effect of Fasting under Different Temperature Conditions on Nucleic Acid Ratios in the Opossum Shrimp Mysis relicta: a Calibration Approach

2008 ◽  
Vol 34 (3) ◽  
pp. 461-471 ◽  
Author(s):  
Christian Schlechtriem ◽  
Ora E. Johannsson ◽  
Kelly L. Bowen ◽  
Richard W. Smith ◽  
Michael T. Arts
Keyword(s):  
Nucleic Acid ◽  
Mysis Relicta ◽  
Temperature Conditions ◽  
Opossum Shrimp ◽  
Calibration Approach

Predation by three glacial opportunists on natural zooplankton communities

1986 ◽  
Vol 64 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Redwood W. Nero ◽  
W. Gary Sprules
Keyword(s):  
Previous Survey ◽  
Clearance Rates ◽  
Mysis Relicta ◽  
Chydorus Sphaericus ◽  
Theoretical Comparison ◽  
Feeding Experiments ◽  
Predatory Impact ◽  
Limnocalanus Macrurus ◽  
Zooplankton Communities

We examine the influence of three glacial opportunist predators, Mysis relicta, Limnocalanus macrurus, and Senecella calanoides, on natural zooplankton communities of central Ontario through a series of feeding experiments in small enclosures (23.6 L). Estimates of in situ clearance rates by M. relicta match previously determined rates, with the following gradation of values: Asplanchna sp. > daphnids and bosminids > Epischura lacustris > large cyclopoids, Chydorus sphaericus and small Diaptomus sp. > L. macrurus > S. calanoides. Clearance rates by M. relicta are similar for all daphnids and bosminids. Hypolimnetic species like Daphnia longiremis and Eubosmina longispina are apparently eliminated by M. relicta, while similarly vulnerable species survive because they have an epilimnetic refuge from M. relicta. Limnocalanus macrurus and S. calanoides prey primarily on copepods, Diaphanosoma spp., and rotifers in the hypolimnion. When both clearance rates and population densities of M. relicta, L. macrurus, and S. calanoides are taken into account, the total predatory impact of M. relicta is much larger than that of the two relict copepods. Based on a theoretical comparison of measured clearance rates by predators with estimated rates of prey recruitment, we conclude that differences in species composition and abundance between relict and nonrelict lakes described in a previous survey are due principally to predation by M. relicta.

scholarly journals Pengaruh Pemberian PMT Bubuk Koya Berbahan Dasar Udang Rebon (Mysis relicta) terhadap Perubahan Kadar Hemoglobin Ibu Hamil

EMBRIO ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 91-101
Author(s):  
Vera Iriani Abdullah
Keyword(s):  
Control Group ◽  
Control Group Design ◽  
Mysis Relicta ◽  
Group Design

Anemia  dalam kehamilan yaitu kadar Hb kurang dari 11 g/dL atau hematokrit, 33%, sampai saat ini masih menjadi  masalah kesehatan global, yang mempengaruhi hampir 50% wanita hamil, sekaligus faktor penyebab terjadinya morbiditas pada janin dan ibu.  Penangganan anemia dilakukan dengan pemberian tablet zat besi yang dimulai pada awal kehamilan, sesuai rekomendasi WHO. Namun selain asupan tablet tambah darah diperlukan juga tambahan asupan micronutrient dengan pemberian suplementasi makanan yang mengandung zat besi. Salah satu bahan pangan hewani yang memenuhi multi micronutrient termasuk didalamya zat besi yaitu udang rebon karena ini merupakan suplementasi zat besi yang sumber dari pangan hewani sehingga lebih mudah diserap oleh tubuh. Tujuan penelitian ini untuk menganalisis perbedaan kadar hemoglobin ibu hamil sebelum dan sesudah mengkonsumsi PMT bubuk koya berbahan dasar udang rebon pada kelompok intervensi dan kontrol. Jenis penelitian ini adalah penelitian kuantitatif dengan metode quasi eksperimen menggunakan pendekatan posttest control group design. Hasil penelitian menunjukkan nilai p 0.000<0,05, artinya terdapat perbedaan yang bermakna antara kelompok kontrol dan kelompok intervensi. Kesimpulan terdapat pengaruh konsumsi PMT bubuk koya berbahan dasar udang rebon (Mysis relicta) terhadap perubahan kadar hemoglobin ibu hamil.

Decline of Mysis relicta During the Acidification of Lake 223

1983 ◽  
Vol 40 (11) ◽  
pp. 1905-1911 ◽  
Author(s):  
R. W. Nero ◽  
D. W. Schindler
Keyword(s):  
Confidence Limits ◽  
Experimental Lakes Area ◽  
Mysis Relicta ◽  
Ph Values ◽  
Northwestern Ontario ◽  
Population Comparisons ◽  
Acidification Of Lake ◽  
Ph Range ◽  
Shield Lakes ◽  
Direct Toxicity

The population size of Mysis relicta in Lake 223 of the Experimental Lakes Area, northwestern Ontario, decreased from 6 700 000 ± 1 330 000 (± 95% confidence limits) during August of 1978, to 270 000 ± 75 000 during August of 1979, a 96% decrease. Because Mysis, a cold stenotherm, is restricted to the metalimnion and hypolimnion of lakes during summer, the pH range encountered by the population was 5.51 to 6.32 in 1978 and 5.23 to 6.10 in 1979, even though mean pH values in epilimnion waters for the 2 yr were 5.84 and 5.60. A decrease in pH of its habitat from 6.2 to 5.6 during fall overturn in 1979 caused the elimination of the remaining 4% of the population. Comparisons with four control lakes suggested that the decline and disappearance were not normal occurrences in unstressed lakes. Concentrations of Zn, Al, Mn, Fe, Cd, Cu, Ni, and Hg in Lake 223 water were low, and concentrations in Mysis were less than or equal to those in animals from five control lakes, suggesting that the decline in this species was not due to the toxic effects of metals. All size classes were affected, so that direct toxicity of hydrogen ion may be responsible for this abrupt population collapse. These results suggest that Mysis may be a useful early indicator of acidification damage to Precambrian Shield lakes.

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