Search results for "Luvia"

Sedimentation in a tropical, microtidal, wave-dominated coastal-plain estuary

1996

The Mono estuary is an infilled, microtidal estuary located on the wave-dominated Bight of Benin coast which is subject to very strong eastward longshore drift. The estuarine fill comprises a thick unit of lagoonal mud deposited in a ‘central basin’between upland fluvial deposits and estuary-mouth wave-tide deposits. This lagoonal fill is capped by organic-rich tidal flat mud. In addition to tidal flat mud, the superficial facies overlying the ‘central basin’fill include remnants of spits resting on transgressive/washover sand, an estuary-mouth association of beach, shoreface, flood-tidal delta and tidal inlet deposits, and a thin sheet of fluvial sediments deposited over tidal flat mud. Af…

Rhine flood deposits recorded in the Gallo-Roman site of Oedenburg (Haut-Rhin, France).

2006

13 pages; International audience; From the first to the fourth century AD, the Gallo-Roman town of Oedenburg developed in the alluvial landscape of the southern Upper Rhine Graben. Throughout this period, the landscape mosaic, composed of palaeochannels, stable palaeoislands and river terraces, continued to evolve. A district of this town, situated on a lateral Rhine channel system, was archaeologically excavated. Largescale excavation and cross-section analysis provide evidence of changing fluvial conditions during the period under study. At about AD 20 or earlier, this lateral part of the floodplain, affected by very fine sedimentation, was occupied by moribund marshy palaeochannels. When…

Una nuova formulazione per il calcolo della pendenza di sistemazione degli alvei montani

2010

Using empirical and theoretical approaches for predicting the slope of siltation upstream of check-dams in mediterranean environment

2010

Confronto tra modelli di previsione e rilievi sperimentali della pendenza di sistemazione in un corso d'acqua calabrese

2006

Tervetuloa Suomelan kouluun ja Lavian lukioon : uuden opettajan perehdyttämiskansio

2008

Tehnoloģisko parametru ietekme uz mikroaļģu Haematococcus pluvialis un Desmodesmus communis kultivēšanu kolbās un laboratorijas mēroga fotobioreaktorā

2016

Mikroaļģu kultivēšana ir dabai draudzīgs process, no kura ir iespējams iegūt pigmentus, lipīdus un taukskābes plašam pielietojumam. Darba mērķis bija, atrast optimālos kultivēšanas parametrus, iegūt pēc iespējas lielāku biomasas iznākumu Haematococcus pluvialis celmiem kolbās un Desmodesmus communis celmam kolbās un laboratorijas mēroga fotobioreaktorā ar maisītāju. Darbs sastāv no trim daļām – H. pluvialis un D. communis kultivēšanas eksperimentiem laboratorijas kolbās un D. communis kultivēšanas eksperimentiem fotobioreaktorā ar maisītāju. Tika noteikts, ka piemērotākā barotne mikroaļģu H. pluvialis CCAC-0125 un CCAP-34/6 celmu kultivēšanai ir BG11, un augstākus biomasas un astaksantīna k…

Cormorant predation mortality of perch (Perca fluviatilis) in coastal and archipelago areas, northern Baltic Sea

2021

Abstract Perch (Perca fluviatilis) is an important prey species of the great cormorant (Phalacrocorax carbo sinensis) in the coastal waters of the northern Baltic Sea. The annual predation mortality caused by cormorants was estimated based on the consumed numbers of perch in relation to the abundance of perch in vulnerable age groups in the sea. We used existing stock assessment data (Archipelago Sea) or a simple population model in other areas (Gulf of Finland, Bothnian Sea, and Quark), based on commercial and recreational perch catches, and estimated fishing and natural mortalities, with distributions describing our understanding about the likelihood of different values for every variable…

Pääjärven kalayhteisön rakenne sekä ahvenen (Perca fluviatilis), särjen (Rutilus rutilus) ja kuhan (Sander lucioperca) kasvu

2006

Morphodynamics of river bed variation with variable bedload step length

2013

Abstract. Here we consider the 1-D morphodynamics of an erodible bed subject to bedload transport. Fluvial bed elevation variation is typically modeled by the Exner equation, which, in its classical form, expresses mass conservation in terms of the divergence of the bedload sediment flux. An entrainment form of the Exner equation can be written as an alternative description of the same bedload processes, by introducing the notions of an entrainment rate into bedload and of a particle step length, and assuming a certain probability distribution for the step length. This entrainment form implies some degree of nonlocality, which is absent from the standard flux form, so that these two express…