PhD theses

All Wageningen University PhD theses

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    Wageningen PhD theses

    This database contains bibliographic descriptions of all Wageningen University PhD theses from 1920 onwards. It is updated on a daily basis by WUR Library.

    Author abstracts and/or summaries are added to all descriptions. A link to the full text dissertation is added to the bibliographic description. In a few cases, no electronic version is available, mostly because of copyright issues.

    Hard copies of all theses are available for loan at WUR Library. To request them, click the link Request this publication in the full record presentation. This is a fee based service.

    mail icon WUR Library, 9 july 2012


Records 1 - 20 / 173

  • help
  • print

    Print search results

  • export

    Export search results

  • alert
    We will mail you new results for this query: q="natural resources"
Check title to add to marked list
Maximization of sulfur formation in the presence of organic sulfur compounds in a dual bioreactor gas desulfurization system [PhD thesis]
Kiragosyan, Karine \ 2020
Nutritious ponds : valorising waste using natural production [PhD thesis]
Hermsen, Devi \ 2020
Towards efficient use of resources in food systems : exploring circular principles and strategies [PhD thesis]
Kernebeek, Heleen van \ 2020
biobased economy - energy sources - biomass - bioenergy - food - food wastes
Effects of land use and land cover change on the water cycle in the Amazon basin under a changing climate [PhD thesis]
Von Randow, Rita de Cássia Silva \ 2020
Synergies and trade-offs between yield, quality, resource use efficiency and environmental impact of potato production in China [PhD thesis]
Wang, Na \ 2020
The state, capital and peasantry in the agrarian transition of China: the case of Guangxi sugarcane sector [PhD thesis]
Zhang, Jin \ 2019
Wild ungulates as forest engineers [PhD thesis]
Full text publicly available; under embargo until:2021-10-10
Ramírez Chiriboga, Juan Ignacio \ 2019
Nutrient challenges in global livestock supply chains : an assessment of nitrogen use and flows [PhD thesis]
Uwizeye, Aimable \ 2019
Land in post-conflict situations : war, decentralization, land governance and state formation In Northern Uganda [PhD thesis]
Kobusingye, Doreen Nancy \ 2018
Enactment of ‘community’ in community based natural resources management in Zambezi Region, Namibia [PhD thesis]
Lubilo, Rodgers \ 2018
Crossbreeding and gross national happiness of Bhutanese farmers [PhD thesis]
Samdup, Tashi \ 2018
Understanding the predictability of the Arctic climate [PhD thesis]
Krikken, Folmer \ 2018
Active citizenship in green space governance [PhD thesis]
Full text publicly available; under embargo until:2020-11-09
Mattijssen, Thomas \ 2018
citizens - green infrastructure - governance - ecology - nature
Can we solve it in the workshop? : learning in river restoration and climate policy implementation [PhD thesis]
Rudberg, Peter M. \ 2018
Optimization of mixing in a Chinese dome digester for tropical regions [PhD thesis]
Jegede, Abiodun O. \ 2018
Production efficiency of mussel bottom culture [PhD thesis]
Capelle, Jacob J. \ 2017
mussels - mussel culture - bottom culture - efficiency - population dynamics - culture techniques - biomass production - improvement - shellfish culture - aquaculture
Multi-objective optimization for eco-efficient food supply chains [PhD thesis]
Full text publicly available; under embargo until:2021-01-21
Banasik, Aleksander \ 2017
food chains - supply chain management - food production - mushrooms - decision support systems - production planning - models
Essays on the political economy of trade and regulation : biotechnology and conservation [PhD thesis]
Shao, Qianqian \ 2017
agricultural trade - genetically engineered foods - food biotechnology - political economy - food products - agricultural production - agricultural products - food technology - food policy - food security
Navigating obstacles, opportunities and reforms: women’s lives and livelihoods in artisanal mining communities in eastern DRC [PhD thesis]
Bashwira Nyenyezi, Marie Rose \ 2017
livelihoods - livelihood strategies - mining - women - women workers - gender - gender relations - empowerment - congo democratic republic - central africa
Valorisation of waste streams from by-product to worm biomass [PhD thesis]
Laarhoven, Bob \ 2017
biomass - residual streams - animal nutrition - fisheries - organic wastes - helminths

With an 8 % annual growth rate, aquaculture is the fastest growing food production sector in the world (FAO, 2008). It can only be sustainable if it is supported by a similar increase in feed production. This had led to several developments to reduce and replace the amount of fishmeal/ oil in fish diets by plant based ingredients originating from by-products or from crops specifically cultured for this purpose. Although plant oils and proteins are available in bulk amounts, their application in fish feed is questionable as it induces more pressure on land-use due to increased agricultural production and competes with present use as food or feed. This drives several alternative feed source developments which are based on the use of residual streams. Novel feed ingredients based on residual stream conversion can in general be subdivided into two major classes: Single cell protein, mainly from yeast, microalgae and bacteria. These novel feed ingredients have the potential to be more sustainable than fish and plant based proteins/oils if they can be effectively produced from residual nutrients, waste streams or low value by-products from e.g. food or agro industries.

Check title to add to marked list
<< previous | next >>

Show 20 50 100 records per page


To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access. A discount of 100% means that (after approval) the author does not have to pay Article Processing Charges.

For the approval of an Open Access deal for an article, the corresponding author of this article must be affiliated with Wageningen University & Research.

Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.