According to the policy brief Series published by the National Research Council of the Philippines (NRCP) of the Department of Science and Technology (DOST), Lake Lanao can be classified as an oligotrophic
lake which means it has 'low primary productivity as a result of low nutrient content.'
[paragraph] That day we "popped" about two dozen bass in one bay of an oligotrophic
trout lake, watching each fish rise to the bait from 5 feet down in window-pane water.
Cosmarium is characterized by having generally solitary cells, semicells rounded, reniform, pyramidate, quadrate with entire or undulate margin; subcircular to elongate-oval (biradiate) in apical view; cell wall smooth with scattered pores or ornamented; one to several chloroplasts per semicell, axial or parietal, and as well as other desmids generally inhabit acidic, oligotrophic
, aquatic environments and occasionally subaerial or in basic, eutrophic water (Guiry and Guiry, 2017).
Some authors have reported that in oligotrophic
systems such as in Patagonia, the spread of Chinook salmon, with the resultant high densities of juveniles, may lead to competition for food with resident fish stocks (Soto et al., 2006, 2007; Ibarra et al., 2011).
Achieving a P concentration of 10-20 pg/L, however, is considered reasonably protective for many ecosystems in the U.S., while achieving levels of 1-2 pg/L can be required to restore oligotrophic
conditions for sensitive ecosystems, such as the Everglades (Noe, Childers, & Jones, 2001).
Here we present the first data obtained from tracked breeding Scopoli's shearwaters under strong oligotrophic
conditions in the Ionian Sea, eastern Mediterranean (Allen et al.
and investigators from centers in Italy, Germany, France, and Spain, who aim to compare the efficacy of treatment with autologous human bone marrowderived mesenchymal stromal cells versus iliac crest autograft to enhance bone healing in patients with diaphyseal and/or metaphysodiaphyseal fractures (femur, tibia, and humerus) that had statuses of atrophic or oligotrophic
In a study carried out with samples from the oligotrophic
Sargasso Sea, the additions of nitrogen, phosphorus, and carbon resulted in increasing bacterial production by 7 to 15 times when compared to control or inorganic nutrient additions alone .
In the oligotrophic
Lake Saimaa (Finland), the mean number of dominating species varied between 4 and 8 (Hynynen et al., 1999).
Bacteria are one of the major contaminants of water.3 They have been reported to persist even in the extreme environmental conditions and oligotrophic
Actinobacteria were cultivated, enumerated, and isolated using serial dilution and spread-plate techniques under normal nutrient and oligotrophic