Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector
-
Upload
brussels-briefings-brusselsbriefingsnet -
Category
Business
-
view
1.506 -
download
0
description
Transcript of Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector
![Page 1: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/1.jpg)
Brussels Development Briefing n.32
Fish-farming the new driver of the blue economy?3rd July 2013
http://brusselsbriefings.net
Aquaculture nutrition and long-term sustainability of the sector.Patrick Sorgeloos, University of Ghent, Belgium
![Page 2: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/2.jpg)
Aquaculture nutrition and long-term sustainability of the sectorPatrick Sorgeloos, Ghent University, Belgium
Fish-farming: the new driver of the blue economy?Brussels Policy Briefing No 32 – July 3, 2013
![Page 3: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/3.jpg)
resulting in new concepts & products for a sustainable aquaculture
from an empiricial approachtowards
a knowledge-based bio-industry
![Page 4: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/4.jpg)
“Aquaculture is probably the fastest growing food-producing sector, and currently accounts for almost 50% of the world’s food fish and is perceived as having the greatest potential to meet the growing demand for aquatic food.”
“Given the projected population growth over the next two decades, it is estimated that by 2030 at least an additional 40 million tons/year of aquatic food will be required to maintain the current per caput consumption.”
![Page 5: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/5.jpg)
Courtesy Harache
![Page 6: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/6.jpg)
The fish meal / fish oil contradiction
Full independence from fisheries stocks for LIPID AND PROTEIN INGREDIENTS in aquaculture feeds
![Page 7: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/7.jpg)
![Page 8: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/8.jpg)
EXTRACTIVE aquaculture
nutrient recycling
FED aquaculture
![Page 9: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/9.jpg)
FOOD aquaculture
Asia, esp. China - long history - large production - integrated farming
FOOD versus BUSINESS aquaculture
BUSINESS aquaculture
Recent developments (since 1960s)• Japan, later Europe, America’s, etc• successful new industry• monoculture
![Page 10: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/10.jpg)
FOOD aquaculture BUSINESS aquaculture
Asia, esp. China - long history - large production - integrated farming
Recent developments (since 1960s)• Japan, later Europe, America’s, etc• successful new industry• monoculture
FOOD versus BUSINESS aquaculture
![Page 11: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/11.jpg)
PANGASIUS CATFISH FARMING IN VIETNAM > 1,000,000 TONS/YEAR
Success stories in business aquaculture
![Page 12: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/12.jpg)
1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 20050
100
200
300
400
500
600
17.5 31.2 41.560
80100
172
232
286
340
380
500
Year
Annual yie
ld(
103 t
on
)
CHINESE MITTEN CRAB Eriocheir sinensis
annual production yields
Success stories in food aquaculture
![Page 13: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/13.jpg)
![Page 14: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/14.jpg)
![Page 15: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/15.jpg)
integration of culture of different trophic levels
MACROALGAE
MOLLUSCS
FINFISH
![Page 16: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/16.jpg)
8 km
![Page 17: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/17.jpg)
resulting in new concepts & products for a sustainable aquaculture
from an empiricial approachtowards
a knowledge-based bio-industry
![Page 18: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/18.jpg)
- Complete independence from natural stocks through DOMESTICATION- Improved / more cost-effective SEED PRODUCTION- Better targeted SPECIES SELECTION- Development of more efficient stocks through SELECTIVE BREEDING - More MICROBIAL MANAGEMENT for more sustainable production - Better understanding of IMMUNE SYSTEMS in vertebrates and invertebrates- More INTEGRATED PRODUCTION SYSTEMS for plant and animal farming- COASTAL AND OFF-SHORE FARMS of food and energy- Full independence from fisheries stocks for LIPID AND PROTEIN INGREDIENTS in aquatic feeds - More attention for INTEGRATION of restocking activities with FISHERIES management- SOCIETAL LEVERAGE:
- multi-stakeholder interaction- international cooperation on a win-win basis
![Page 19: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/19.jpg)
Microbes “run the world”
![Page 20: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/20.jpg)
70 % of all farmed fish are produced in ponds
What is the role of the microflora ?
Recent documentation:30 % N contribution from bio flocs !
BIO FLOCS
more MICROBIAL MANAGEMENT for more sustainable production
![Page 21: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/21.jpg)
Volume of bioflocs formed per day in differen C/N regimes
C/N 10 C/N 50
![Page 22: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/22.jpg)
molluscs
Artemia biomass
Biofloc consumers
![Page 23: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/23.jpg)
from Cunningham, “Knowledge Based Bio-Economy towards 2020”Brussels, September 14, 2010
Oceans70%
Crops5%
Pasture7%
Forest9%
Other9% (cities 1.5%)
Global resources
![Page 24: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/24.jpg)
Global primary production and food supplytotal bioproduction
contribution to food supply
terrestrial
marine
from Field et al. (1998) and Duarte et al. (2009)
plants & animals
fisheries & aquaculture
plants & animals
pro
tein
s
qu
anti
ty
16 % of proteins2 % in quantity
![Page 25: Patrick Sorgeloos: Aquaculture nutrition: addressing the long-term sustainability of the sector](https://reader033.fdocuments.in/reader033/viewer/2022061201/5477e21eb4af9ff9028b4bed/html5/thumbnails/25.jpg)
- full independence from fishmeal and fish oil is not the only priority -