TY - JOUR
T1 - Dynamic simulation of diploid vs. triploid Pacific oyster (Crassostrea gigas) productive performance in northwestern Mexico
AU - Ascencio-Michel, Roberto
AU - Ibarra, Ana María
AU - Araneda-Padilla, Marcelo
AU - Ponce-Díaz, Germán
AU - Vergara-Solana, Francisco Javier
N1 - Publisher Copyright:
© 2022, Escuela de Ciencias del Mar. All rights reserved.
PY - 2022/5
Y1 - 2022/5
N2 - The Pacific oyster Crassostrea gigas was introduced in northwestern Mexico for aquaculture purposes. Although its cultivation has been successful, this species has shown high mortalities during summer. To mitigate this problem, producers have resorted to biotechnology (triploidy), whose performance-regarding diploid seedling-depends on site conditions and stocking time. Hence, uncertainty exists on its benefits under real production conditions. This research evaluates triploidy performance by implementing a dynamic simulation model considering environmental effects (temperature and chlorophyll) on culture production. The dynamic simulation was based on systems theory, dividing the productive system into two sub-models (environmental and biological), including temperature and chlorophyll effects, growth, mortality, and condition index parameterized in the function of the environmental parameters. The dynamic simulation results suggest that implementing triploid culture is advantageous in zones under high stress associated with high temperature and low productivity; likewise, triploid spat tends to show better performance independently of the site. Nevertheless, performance by ploidy varies depending on the environmental conditions of the sites.
AB - The Pacific oyster Crassostrea gigas was introduced in northwestern Mexico for aquaculture purposes. Although its cultivation has been successful, this species has shown high mortalities during summer. To mitigate this problem, producers have resorted to biotechnology (triploidy), whose performance-regarding diploid seedling-depends on site conditions and stocking time. Hence, uncertainty exists on its benefits under real production conditions. This research evaluates triploidy performance by implementing a dynamic simulation model considering environmental effects (temperature and chlorophyll) on culture production. The dynamic simulation was based on systems theory, dividing the productive system into two sub-models (environmental and biological), including temperature and chlorophyll effects, growth, mortality, and condition index parameterized in the function of the environmental parameters. The dynamic simulation results suggest that implementing triploid culture is advantageous in zones under high stress associated with high temperature and low productivity; likewise, triploid spat tends to show better performance independently of the site. Nevertheless, performance by ploidy varies depending on the environmental conditions of the sites.
KW - Crassostrea gigas
KW - biotechnology
KW - numerical simulation
KW - polyploidy
KW - systems theory
UR - http://www.scopus.com/inward/record.url?scp=85134948430&partnerID=8YFLogxK
U2 - 10.3856/vol50-issue3-fulltext-2771
DO - 10.3856/vol50-issue3-fulltext-2771
M3 - Artículo
AN - SCOPUS:85134948430
SN - 0718-560X
VL - 50
SP - 467
EP - 478
JO - Latin American Journal of Aquatic Research
JF - Latin American Journal of Aquatic Research
IS - 3
ER -