Results 71 to 80 of about 3,971,160 (346)

Polyunsaturated fatty acids in fishes increase with total lipids irrespective of feeding sources and trophic position [PDF]

open access: yes, 2017
Trophic transfer and retention of dietary compounds are vital for somatic development, reproduction, and survival of aquatic consumers. In this field study, stable carbon and nitrogen isotopes, and fatty acids (FA) contents in invertebrates and fishes of
Amundsen, P. -A.   +5 more
core   +2 more sources

Trophic water assessment of the small retention reservoirs Blizne and Cierpisz in the Podkarpacie Region (Subcarpathian Province)

open access: yesLimnological Review, 2014
The paper presents an analysis of the trophic status of two small retention reservoirs located in the Subcarpathian region: Blizne reservoir on the River Ladzierz and Cierpisz reservoir on the River Tuszymka.
Miąsik Małgorzata   +2 more
doaj   +1 more source

Geochemical Factors Controlling Dissolved Elemental Mercury and Methylmercury Formation in Alaskan Wetlands of Varying Trophic Status.

open access: yesEnvironmental Science and Technology, 2019
The transformations of aqueous inorganic divalent mercury (Hg(II)i) to volatile dissolved gaseous mercury (Hg(0)(aq)) and toxic methylmercury (MeHg) govern mercury bioavailability and fate in northern ecosystems.
Brett A. Poulin   +7 more
semanticscholar   +1 more source

Coordination of Cyanobacterial Nitrate Assimilation and Photosynthesis by a Novel PsbO‐Interacting Protein PirN

open access: yesAdvanced Science, EarlyView.
PirN was identified as a previously uncharacterized PsbO‐interacting protein specifically induced in nitrate‐grown cyanobacteria. Loss of PirN leads to coordinated downregulation of PsbO and the nitrate reductase NarB, causing decreased PSII activity and impaired growth under nitrate conditions. Complementation with either PsbO or NarB largely restores
Chengcheng Huang   +16 more
wiley   +1 more source

PICES Press, Vol. 8, No. 2, July 2000 [PDF]

open access: yes, 2000
Beyond El Nino Conference The status of the Bering Sea: June - December, 1999 The state of the western North Pacific in the second half of 1999 The state of the eastern North Pacific since autumn 1999 Project Argo Report of the ICES Zooplankton

core  

Determination of Reservoir Ecosystem Status in Cimahi City Govenrment Office

open access: yesJurnal Presipitasi
Cimahi City continues to try to repair the damaged reservoir to function optimally as a raw water reservoir. This effort requires identifying the status of the reservoir ecosystem by assessing three standard criteria: aquatic, boundary, and terrestrial ...
Eka Wardhani   +3 more
doaj   +1 more source

Assessing the trophic status of Lake Mikri Prespa, Greece [PDF]

open access: yesAnnales de Limnologie, 1989
Lake Mikri Prespa is a shallow water basin characterized by unstable thermal stratification, primary dimictic condi­ tions and clinograde distribution of dissolved oxygen. The nutrient concentrations are high, indicating a trend towards eutrophication. Total phosphorus input calculated on the basis of the export coefficient accounting for land-uses and
T. S. Koussouris   +2 more
openaire   +1 more source

Long-term changes of the trophic status in transitional ecosystems of the northern Adriatic Sea, key parameters and future expectations: The lagoon of Venice as a study case

open access: yesNatureza & Conservação, 2019
The determination of the trophic status of transitional ecosystems from the physico-chemical and biological point of view is one of the requirements of the European Water Framework Directive (WFD 2000/60/EC). In Italy, its determination is implemented by
A. Sfriso   +5 more
semanticscholar   +1 more source

Diversity of Pharmaceuticals Enhances Antibiotic Resistance in the Invertebrate Gut via Biofilm‐Mediated Mechanisms

open access: yesAdvanced Science, EarlyView.
Pharmaceutical diversity acts as an independent driver of antibiotic resistance in soil invertebrates. While bulk soil remains unaffected, the collembolan gut microbiome exhibits significant resistance gene enrichment under complex chemical exposure and diurnal warming.
Yi‐Fei Wang   +11 more
wiley   +1 more source

Sex‐Specific Regulation of Glycemic Homeostasis by Theabrownin from Pu‐erh Tea

open access: yesAdvanced Science, EarlyView.
Pu‐erh tea's key component, theabrownin (TB), lowers blood glucose in a sex‐specific manner. In females, estrogen boosts intestinal MUC2 production, which dramatically enhances TB's ability to inhibit the carbohydrate‐digesting enzyme α‐glucosidase.
Yang Li   +22 more
wiley   +1 more source

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