Ecologists have long been interested in understanding the strengths of consumer and resource limitation in influencing communities. Here we ask three questions concerning the relative importance of nutrients and grazing fishes to primary producers of a tropical Andean stream: (1) Are stream algae nutrient limited? (2) Are top-down and bottom-up forces of dual importance in limiting primary prod...

BACKGROUND Age-related cataract is a major cause of morbidity. Previous studies of diet and cataract risk have focused on specific nutrients or healthy eating indexes but not on identifiable dietary groups such as vegetarians. OBJECTIVE We investigated the association between diet and cataract risk in a population that has a wide range of diets and includes a high proportion of vegetarians. ...

Several studies demonstrated the importance of nutrition, beneficial and preventive role of Mediterranean diet in the occurrence of cardiovascular diseases, chronic neurodegenerative diseases and neoplasms, obesity and diabetes. In randomized intervention trials, Mediterranean diet improved endothelial function and significantly reduced waist circumference, plasma glucose, serum insulin and hom...

Several studies demonstrated the beneficial and preventive role of Mediterranean diet in the occurrence of cardiovascular diseases, chronic neurodegenerative diseases and neoplasms, obesity and diabetes. In randomized intervention trials, Mediterranean diet improved endothelial function and significantly reduced waist circumference, plasma glucose, serum insulin and homeostasis model assessment...

Understanding the daily digestive function could lead to more efficient feeding practices in farmed fish species. In this work, effect of several protocols was assessed on expression genes related circadian system ( arntl1, clock, per1 , and cry1 ), appetite cck nutrients hydrolysis try1, ctrb1, pga, atp4a, cel amy2a peptides transport slc15a1 pH, activity key (trypsin, chymotrypsin, amylase, 4...

Studies have demonstrated the beneficial and preventive role of Mediterranean diet in the occurrence of cardiovascular diseases, chronic neurodegenerative diseases and neoplasms, obesity and diabetes. The importance of nutrition has been proven by randomized intervention trials. Research has shown that Mediterranean diet improved endothelial function and significantly reduced waist circumferenc...

We used both direct measurement and bioenergetic methods to examine nitrogen and phosphorus (P) excretion by fathead minnows in two wetlands over 2 yr. We also assessed the potential importance of nutrient flux from fish by comparing excretion estimates to empirically derived estimates of algal P demand. Population-level estimates of P excretion across the four lake-years were high relative to ...

Introduction Several studies have aimed to determine the components of diet that have the highest influence on the risk of cardiovascular diseases (CVDs). Increased consumption of fruits and vegetables reduces the risk of coronary heart diseases (CHDs) because fruits and vegetables contain protective constituents such as potassium, foliate, vitamins, fibre, and other phenolic compounds.[ 1,2] C...

The regulation of food intake in fish is a complex process carried out through several different mechanisms in the central nervous system (CNS) with hypothalamus being the main regulatory center. As in mammals, a complex hypothalamic circuit including two populations of neurons: one co-expressing neuropeptide Y (NPY) and Agouti-related peptide (AgRP) and the second one population co-expressing ...

High rate algal ponding (HRAP) and constructed wetland (CW) technology was used to remove nutrients from brewery effluent, thus recovering water and producing algal biomass. The HRAP/CW system was effective in reducing chemical oxygen demand (COD) from ca. 150 mg/L to below 75 mg/L, and ammonia from 30 mg/L to below 1 mg/L. The HRAP was initially inconsistent in phosphate removal, but phosphate...