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Biomass management in recirculating aquaculture systems using queuing networks
Year:
2007
Source of publication :
Elsevier aquaculture journal
Authors :
Halachmi, Ilan
;
.
Volume :
262
Co-Authors:
Facilitators :
From page:
514
To page:
520
(
Total pages:
7
)
Abstract:

Queuing network contains a series of service facilities (in our case, culture tanks or ponds), at some or all of which, a customer (fish) must receive service; it is, therefore, necessary to study the entire network. A culture tank or pond can be seen as a queuing system in which neither a queue (“over-holding” of fish in tank A before being moved to tank B), nor an idle pond is allowed, and arrival and departure rates are equal. The entire farm can be seen as a queuing network. A queuing model for optimizing the management parameters of a recirculating aquaculture system was developed. The model validity was statistically tested and was not rejected within the 95% confidence level, therefore, the model can be useful for both research and practical applications. The model aims to optimize: (1) the system layout, (2) the fish batch arrival frequency, (3) the number of fingerlings in a batch, (4) the number of days in each culture tank, and (5) grading criteria along the production lines. Under our local farm conditions we found that: the “2, 4, 8 layout” was a superior layout; the optimal operating parameters were: arrival of a batch every 36 days; 72 days at the nursery stage (up to 25 g); followed by 144 days (up to 200 g) at each successive growth phase. The optimal values maintain biomass density criterion of 80 kg m− 3 and tank utilization criterion of never below 99%.

Note:
Related Files :
gilthead seabream
Management
optimization
Recirculating aquaculture systems
Recirculating aquaculture systems (RAS)
Show More
Related Content
More details
DOI :
https://doi.org/10.1016/j.aquaculture.2006.10.015
Article number:
0
Affiliations:
Database:
Google Scholar
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
43195
Last updated date:
02/03/2022 17:27
Creation date:
13/08/2019 08:27
Scientific Publication
Biomass management in recirculating aquaculture systems using queuing networks
262
Biomass management in recirculating aquaculture systems using queuing networks

Queuing network contains a series of service facilities (in our case, culture tanks or ponds), at some or all of which, a customer (fish) must receive service; it is, therefore, necessary to study the entire network. A culture tank or pond can be seen as a queuing system in which neither a queue (“over-holding” of fish in tank A before being moved to tank B), nor an idle pond is allowed, and arrival and departure rates are equal. The entire farm can be seen as a queuing network. A queuing model for optimizing the management parameters of a recirculating aquaculture system was developed. The model validity was statistically tested and was not rejected within the 95% confidence level, therefore, the model can be useful for both research and practical applications. The model aims to optimize: (1) the system layout, (2) the fish batch arrival frequency, (3) the number of fingerlings in a batch, (4) the number of days in each culture tank, and (5) grading criteria along the production lines. Under our local farm conditions we found that: the “2, 4, 8 layout” was a superior layout; the optimal operating parameters were: arrival of a batch every 36 days; 72 days at the nursery stage (up to 25 g); followed by 144 days (up to 200 g) at each successive growth phase. The optimal values maintain biomass density criterion of 80 kg m− 3 and tank utilization criterion of never below 99%.

Scientific Publication
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