Sök:

Sökresultat:

1413 Uppsatser om Apple mussel scale - Sida 1 av 95

Bottensubstratets inverkan på föryngring av Flodpärlmussla

The freshwater pearl mussel (Margaritifera margaritifera) is threatened throughout its range. There has been a substantial decline of the species and one major reason is habitat degradation. We investigated how the substrate composition of the bottom floor affects the regeneration of the mussel by analyzing data from the Västerbotten County Board?s inventory of the freshwater pearl mussel. The results implied that fine material such as fine sediment and sand might be detrimental to regeneration whereas gravel and boulders and in particular stone seem to be beneficial.

Kommasköldlusen Lepidosaphes ulmi (Linnaeus) i svensk äppelodling : livscykel och naturliga fiender

Lepidosaphes ulmi ? kommasköldlusen har dykt upp som skadegörare i svenska äppelodlingar de senaste åren. Svenska äppelodlare har efterfrågat mer information kring kommasköldlusen och dess naturliga fiender, och därför gjordes denna litteraturstudie. Kommasköldlusen är en pansarsköldlus med ett hårt skyddande skal. Även äggen läggs under skalet och de är därför svåra att bekämpa.

Freshwater pearl mussel as indicators of Swedish streams - a comparison between freshwater pearl mussel and biological quality elements

The freshwater pearl mussel (Margaritifera margaritifera) is a large freshwater mussel. Because of its sensitivity to human impact, such as eutrophication, acidification and alterations of hydromorphology, the species is considered as a robust indicator of stream water quality and biodiversity. Moreover, due to the species complex life cycle, including a larval stage on the gills of salmon and trout, and sensitivity of early life stages, regeneration is often used as an indicator. The freshwater pearl mussel is also used in the expert judgement of status classification of benthic invertebrates according to the European Water Framework Directive. The purpose of this study was to gain a deeper understanding of the freshwater pearl mussel as an indicator for Swedish streams. It was made with two types of association analyses.

Flodpärlmusslans status i Laxtjärnbäcken : Effekter på flodpärlmusslan av sedimentbelastning och förekomst av bäckröding

The aim of this present study was to determine and evaluate whether the presence of brooktrout (Salvelinus fontinalis) and sediment load may be a threat against the reproduction anddistribution of freshwater pearl mussel (Margaritifera margaritifera) in a creek located innorthern Sweden. Freshwater pearl mussel is an endangered species and is dependent ofbrown trout (Salmo trutta) to reproduce. Therefore there are concerns of indirect effects onthe population of pearl mussel by competition between brown trout and brook trout. Ditchesfrom a nearby gravel road have been fixed to lower the sediment load into the creek. I tried toevaluate this action plan.

Selektion av äpplefröplantor på Balsgård :

Today in Sweden, apples are mostly cultivated for direct consumption, i.e. dessert apples. Apple breeding aims at developing cultivars with new and improved qualities in order to meet the demands of different target groups and to increase the interest in apples on the market. Different target groups have different views on the qualities of an apple. The consumer, for instance, wants an apple that is tasty and beautiful, while the grower, in addition, wants an apple cultivar that is healthy, has good winter hardiness and a predictable, annual productivity.

Hemlighetsmakeri som strategi

Syfte: Vårt syfte är, att genom att studera Apples historia, omvärld, bransch och strategiska val, analysera om och hur Apple använder hemlighetsmakeriet som grund för skapande av långsiktiga och varaktiga konkurrensfördelar. Metod: Vi har använt oss av en kvalitativ metod med primärdata bestående av intervjuer med personer insatta i Apple och dess omvärld. Sekundärdatan består mestadels av artiklar från olikaelektroniska källor, facklitteratur och tidskrifter. Teoretiska perspektiv: Vi använder oss av teorier och begrepp som Porters Five Forces, Schumpeterian markets, Hyperkonkurrens, delar av Porters generiska strategier samt Barneys VRIO. Empiri: Vi har gjort en fallstudie av Apple med inslag av jämförelser med andra företag.

Äppelpressmassa i Sydsverige - nuvarande användningsområden och möjligheter till nya produkter

Pomace is the solid remains (i.e. stems, pulp, seeds, and skins) after pressing for juice. The annual production of apple pomace is 593 000 ton worldwide. Its field of application depends on local conditions. In order to investigate the field of application of apple pomace in the Southern Sweden, six persons on companies with production of apple juice were interviewed.

Habitatpreferenser hos tjockskalig målarmussla (Unio crassus) med avseende på vattendjup och beskuggning.

The thick-shelled river mussel (Unio crassus) is a red listed species classified as Endangered (EN) and is also considered within the Habitats Directive. The distribution in Sweden is fragmented and it is mostly occurring in the south eastern parts. We investigated the presence of Unio crassus in a section of the stream Storån, Östergötland County, from Falerum to the inflow into Lake Åkervristen. The environmental parameters investigated were water depth, bottom substrate, shading, water velocity and the slope over the water surface. In this thesis I have focused mainly on water depth and shading, comparing sites with and without mussels.

Apple i världen : en analys och tvärkulturell jämförelse av Apples ?Get a Mac? kampanj i USA och UK

Syftet med denna studie har varit att underso?ka huruvida Apple, ett av va?rldens sto?rsta varuma?rken, anpassar sina reklamfilmer efter den lokala kulturen i USA och UK. Fo?r att genomfo?ra den tva?rkulturella studien anva?ndes en kombination av semiotisk textanalys och litteraturstudie. Tva? niva?er anva?ndes fo?r att analysera materialet, fo?rst ett makroperspektiv o?ver samtliga 81 reklamfilmer och sedan ett mikroperspektiv o?ver de a?tta filmer som hade en motsvarighet i respektive land.

En man och hans ?pplen: en fallstudie av Carl Str?mbergs ?ppeltr?dg?rd

This bachelor?s thesis studies Carl Str?mbergs ?ppeltr?dg?rd, a private garden consisting of a large number of apple trees and varieties. The garden is located outside ?rebro, in N?rke, and is owned by a unit owner association whose goal is to preserve and determine the varieties. Through interviews, articles, site visits and documents from Carl Str?mberg, the purpose have been to get an understanding of who Carl Str?mberg was, how he collected the apple varieties and how that process was affected by the climate amongst apple growing and pomology during that time.

Bottensedimentets betydelse för flodpärlmusslans föryngring ? en metodutveckling

The freshwater pearl mussel Margaritifera margaritifera is an endangered species. To survive, the young mussels demand a fairly coarse bottom material containing an appropriate quantity of organic substrate to survive without suffocating. In order to estimate if a bottom is suitable for juvenile mussels, samples of the sediment are needed. To obtain samples a sampling device called the Mulv collector has been developed within this project. Bottom samples were collected from 18 stations in 4 south Swedish streams, Vramsån, Kling-storpsbäcken, Brönnestadsån and Bräkneån.

Utvärdering av Balsgårds nya äppelgenbank :

To identify and evaluate apple cultivars is not an easy task, since the taste and appearances of the fruit are affected by where the apple tree grows. At the Balsgård new apple gene bank there is a unique and interesting collection of over 260 different cultivars from all over the world. To find out if these cultivars are consistent with previously published descriptions, the fruit was evaluated for some of the cultivars. Among the evaluated cultivars some were selected that could be suitable for cultivation and/or fruit breeding. A few cultivars were in addition analyzed at a consumer evaluation at the Kivik apple market where visitors could vote for the most beautiful apple and the best taste.

Ett klassiskt marknadskommunikationsproblem : Motsvarar Apples image den profil de vill visa?

In this essay the authors are trying to level the success in the IT-company Apple?s market communication. The problem investigated is if the company?s profile, the picture they are trying to implement onto the market, is the same as the market consider the image of the company to be. The problem is studied in a method which combines both a qualitative and a quantitative survey.

Sortval f?r ?pplehagen: Odlade och rekommenderade ?pplesorter i Skaraborgs l?n 1880?1930

This thesis investigates the former apple orchard ?pplehagen with a focus on its origin, history, and remaining fruit trees. Historical aerial photographs, historical maps, an interview with a former owner, together with a field investigation has served as the methods of this survey. The investigation shows that ?pplehagen probably was established between 1882 and the 1930?s as a rational orchard in the spirit of the time aiming to produce fruit both for household and for sale.

Applikationsutveckling i språket Objective-C för iOS

Applications for mobile devices, also known as apps, are today the backbone of a huge market where the company Apple is one of the key players. Apple develops, among other things, handheld electronic devices, which are powered by the operating system iOS. Through iOS, millions of customers get access to Apple?s App Store.During a period of two months, an app in the form of a game has been developed for iOS in the programming language Objective-C. The user of the app is presented intuitive menus and interactive graphical objects that seemingly obey physical laws.

1 Nästa sida ->