Lacustrine characteristics predict lipid contents of mysid shrimp (Mysis diluviana) populations

Limnologica ◽  
2021 ◽  
pp. 125942
Author(s):  
Gordon Paterson ◽  
Bruno DeLuca ◽  
Ellen Bentzen ◽  
David C. Lasenby ◽  
David R.S. Lean ◽  
...  
Keyword(s):  
Lipid Contents ◽  
Mysis Diluviana ◽  
Mysid Shrimp

Laboratory-derived light and temperature preferences of juvenile mysid shrimp, Mysis diluviana

2010 ◽  
Vol 36 (4) ◽  
pp. 699-706 ◽  
Author(s):  
Brent T. Boscarino ◽  
Lars G. Rudstam ◽  
Monica A. Minson ◽  
Emily E. Freund
Keyword(s):  
Mysis Diluviana ◽  
Temperature Preferences ◽  
Mysid Shrimp

Isolation and Screening of Microalgae with High-lipid Contents in Shanxi Province

2013 ◽  
Vol 31 (4) ◽  
pp. 415 ◽  
Author(s):  
Jian-Jiao BAN ◽  
Jia FENG ◽  
Shu-Lian XIE
Keyword(s):  
Shanxi Province ◽  
Lipid Contents ◽  
High Lipid

scholarly journals Metabolomic Study of Heterotrophically Grown Chlorella sp. Isolated from Wastewater in Northern Sweden

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2410
Author(s):  
Jean Claude Nzayisenga ◽  
Anita Sellstedt
Keyword(s):  
Sustainable Development ◽  
Butyric Acid ◽  
Lipid Production ◽  
Growth Conditions ◽  
Northern Sweden ◽  
Metabolic Intermediate ◽  
Chlorella Sp ◽  
Lipid Contents ◽  
New Compounds ◽  
Potential Use

There are numerous strains of Chlorella with a corresponding variety of metabolic pathways. A strain we previously isolated from wastewater in northern Sweden can grow heterotrophically as well as autotrophically in light and has higher lipid contents under heterotrophic growth conditions. The aims of the present study were to characterize metabolic changes associated with the higher lipid contents in order to enhance our understanding of lipid production in microalgae and potentially identify new compounds with utility in sustainable development. Inter alia, the amino acids glutamine and lysine were 7-fold more abundant under heterotrophic conditions, the key metabolic intermediate alpha-ketoglutarate was more abundant under heterotrophic conditions with glucose, and maltose was more abundant under heterotrophic conditions with glycerol than under autotrophic conditions. The metabolite 3-hydroxy-butyric acid, the direct precursor of the biodegradable plastic PHB (poly-3-hydroxy-butyric acid), was also more abundant under heterotrophic conditions. Our metabolomic analysis has provided new insights into the alga’s lipid production pathways and identified metabolites with potential use in sustainable development, such as the production of renewable, biodegradable plastics, cosmetics, and nutraceuticals, with reduced pollution and improvements in both ecological and human health.

scholarly journals Proximate Composition and Its Seasonality of the Mediterranean Green Crab:Carcinus aestuariiNardo, 1847 (Brachyura, Portunidae), in Southern Tunisian Waters (Central Mediterranean)

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Sonia Baklouti ◽  
Abdelkarim Derbali ◽  
Khalifa Dhieb ◽  
Wassim Kammoun ◽  
Othman Jarboui
Keyword(s):  
Proximate Composition ◽  
Nutritional Value ◽  
Central Mediterranean ◽  
Potential Health ◽  
Lipid Contents ◽  
Size Groups ◽  
The Mediterranean ◽  
And Gender ◽  
Edible Parts

The Mediterranean green crabCarcinus aestuariiwas recorded in Tunisian waters several years ago. However, since its record in the Gulf of Gabes, no studies have been carried out about the spread of this crab. Because there is a lack of nutritional information concerning this species, this study aimed to characterize the chemical composition of hepatopancreas and gonads ofCarcinus aestuariiin view of potential health implication for consumers and to determine the seasonal nutritional quality of females and males taken separately for various size groups. In this study, a total of 1399 individuals were collected along the Sfax coast. The nutritional value of various edible parts ofCarcinus aestuariiwas evaluated, and gender differences in terms of edible yield and proximate composition, protein, mineral, lipid, and water content, were compared for season, age, and sex. The biochemical compositions were strongly influenced by sex, age, and seasons. The highest protein and lipid contents were detected in gonads and hepatopancreas of females. Autumn was the season with the highest protein content and lowest fat content. Therefore, people with particular diets constrains should consume the ovaries of females in autumn and it should moderate in winter. The hepatopancreas and gonads from Tunisian waters can be a good source of proteins and mineral.

Metabolic Stores of Yellow Perch (Perca flavescens): Comparison of Populations from an Acidic, Dystrophic Lake and Circumneutral, Mesotrophic Lakes

1992 ◽  
Vol 49 (12) ◽  
pp. 2474-2482 ◽  
Author(s):  
Jay A. Nelson ◽  
John J. Magnuson
Keyword(s):  
Yellow Perch ◽  
Egg Production ◽  
Glycogen Content ◽  
Physiological State ◽  
Perca Flavescens ◽  
Population Level ◽  
Seasonal Effects ◽  
Life History Strategies ◽  
Dystrophic Lake ◽  
Lipid Contents

Little is known about the animals that occupy naturally acidic habitats. To better understand the physiological state of animals from temperate, naturally acidic systems, we compared metabolite stores and meristics of two yellow perch (Perca flavescens) populations in northern Wisconsin. One population originated from a naturally acidic, dystrophic lake (Acid-Lake-Perch, ALP) and had previously been shown to have enhanced tolerance to low pH. The second population came from two nearby interconnected circumneutral, mesotrophic lakes (Neutral-Lake-Perch, NLP). Perch were collected throughout the year to account for seasonal effects and to discern whether patterns of metabolite utilization differed between populations. ALP had smaller livers containing less glycogen and greater muscle glycogen content than NLP. The ALP also had significantly greater liver and visceral lipid contents, and females from this population committed a greater fraction of their body mass to egg production. We interpret these results as indicative of physiological divergence at the population level in yellow perch. These results are discussed as possible products of H+ -driven changes in metabolism and as possible products of different life history strategies between populations. Our results also show that perch living in acidic, dystrophic Wharton Lake are not acid stressed.

The Control of Eyestalk Movements in the Mysid Shrimp Praunus Flexuosus

1975 ◽  
Vol 62 (2) ◽  
pp. 487-504
Author(s):  
D. M. NEIL
Keyword(s):  
Light Beam ◽  
Visual Cues ◽  
Light Conditions ◽  
Free Swimming ◽  
Light Reaction ◽  
Gravity Receptors ◽  
Light Stimuli ◽  
Necessary And Sufficient ◽  
Tracking Response ◽  
Mysid Shrimp

The compensatory eyestalk movements of intact and statocystless mysid shrimps Praunus flexuosus have been measured under a variety of light conditions. The results indicate that the statocyst organs in the urppods are the major gravity receptors, and that they are both necessary and sufficient to produce sinusoidal compensatory eyestalk movements. The addition of visual cues (vertical light beam, optokinetic stimuli) modifies the eyestalk response to some extent, but does not alter its general form. When the statocysts are removed, however, light stimuli become important orientational cues, and the eyestalks perform a tracking response which is considered to be the experimental counterpart of the dorsal light reaction of the free-swimming animal.

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