A framework for environmental analyses of fish food production systems based on systems engineering principles

2009 ◽  
pp. n/a-n/a ◽  
Author(s):  
Annik Magerholm Fet ◽  
Erwin M. Schau ◽  
Cecilia Haskins
2019 ◽  
Vol 103 (1) ◽  
pp. 6-8 ◽  
Author(s):  
Terry Roberts

Since its early rudimentary forms, phosphate fertilizer has developed in step with our understanding of successful food production systems. Recognized as essential to life, the responsible use P in agriculture remains key to food security.


2020 ◽  
Vol 53 (2) ◽  
pp. 15765-15770
Author(s):  
Tim Aschenbruck ◽  
Willem Esterhuizen ◽  
Murali Padmanabha ◽  
Stefan Streif

2010 ◽  
Vol 45 (5) ◽  
pp. S23-S37 ◽  
Author(s):  
A.F. Nisbet ◽  
J. Brown ◽  
B.J. Howard ◽  
N.A. Beresford ◽  
H. Ollagnon ◽  
...  

1974 ◽  
Vol 31 (11) ◽  
pp. 1827-1837 ◽  
Author(s):  
J. H. Mundie

The minimum unit of the environment containing the essential processes of smolt production is identified as a riffle–pool sequence at a meander. Optimization for smolt rearing is seen to lie through control of discharge, temperature, food production, and cover. The pathways of food production are traced. Ways of increasing the stock of fish-food organisms include adjustment of the ratio of riffle to pool area, choice of streamside vegetation, control of light to the stream, and inorganic and organic enrichment. Ways of making food available to fry include collecting drifting invertebrates at night and releasing them in the day, dislodgement of benthos, attracting aerial insects by lights, and supplementary feeding with artificial foods. None of these procedures, when applied to a natural stream, seems economically feasible. When applied, however, to channels made alongside streams and stocked by the parent stream, they should combine some desirable features of rivers with the productive capacity, but not the costs, of hatcheries.


2022 ◽  
pp. 172-185
Author(s):  
Sarina Pradhan Thapa ◽  
Sushil Koirala ◽  
Anil Kumar Anal

2021 ◽  
Author(s):  
Nicole Chalmer

Global food security is dependent on ecologically viable production systems, but current agricultural practices are often at odds with environmental sustainability. Resolving this disparity is a huge task, but there is much that can be learned from traditional food production systems that persisted for thousands of years. Ecoagriculture for a Sustainable Food Future describes the ecological history of food production systems in Australia, showing how Aboriginal food systems collapsed when European farming methods were imposed on bushlands. The industrialised agricultural systems that are now prevalent across the world require constant input of finite resources, and continue to cause destructive environmental change. This book explores the damage that has arisen from farming systems unsuited to their environment, and presents compelling evidence that producing food is an ecological process that needs to be rethought in order to ensure resilient food production into the future. Cultural sensitivity Readers are warned that there may be words, descriptions and terms used in this book that are culturally sensitive, and which might not normally be used in certain public or community contexts. While this information may not reflect current understanding, it is provided by the author in a historical context.


2021 ◽  
Author(s):  
Stefan Biffl ◽  
Juergen Musil ◽  
Angelika Musil ◽  
Kristof Meixner ◽  
Arndt Luder ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document