The author determined the correlations in the growth of bream, pike perch, roach, whitefish click here and small whitefish - Coregonus albula coexisting in lakes.Negative correlations of growth are noted for species of various thermal requirements.The pairs of species playing a similar role in ichthyofauna assemblages of overlapping feeding niches,
Cascade reservoir operation is an effective nonstructural countermeasure for water resources management.In recent years, many metaheuristic algorithms are introduced to handle reservoir optimal operation due to their strong search capability and high efficiency.The butterfly optimization algorithm (BOA) is a newly developed metaheuristic method whi
In this study it has been considered that the inflict of two species, Erannis defoliaria and Operophtera brumata,decrease the radial growth of beech, maple and hornbeam in northern forests of Iran.30 cores were prepared from each mel axolotl species and annual ring widths of them were measured.The results showed that in years 1998 and 1999, the gro
In recent years, an emerging here body of work, centred on specific communicative forms used in facilitating collective and connective action, have contributed to greater understanding of how digital communication relates to social mobilisation.Plenty of these studies highlight the progressive potentiality of digital communication.However, undemocr
I study the economic implications of the world oil market dominated by OPEC and non-OPEC major oil producing countries using a general equilibrium model of trilateral trade with oil duopoly.There are three countries and three goods, x, y, and oil (z).Home (H) is endowed with good x.Foreign (F) is endowed with good y and also produces oil (z).Middle