TY - JOUR
T1 - Spawning and intracapsular development of the marine snail hexaplex nigritus (Neograstropoda: Muricidae) in the laboratory
AU - Góngora-Gómez, Andrés M.
AU - Pinzón-Zúñiga, Misael
AU - Hernández-Sepúlveda, Juan A.
AU - García-Ulloa, Manuel I.I.
AU - Villanueva-Fonseca, Brenda P.
AU - García-Ulloa, Manuel
N1 - Publisher Copyright:
© 2020, Universidad de Costa Rica. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Introduction: The marine snail Hexaplex nigritus is a heav ily exploited muricid in the Gulf of California for consumption and handcrafts. When they reproduce, adults aggregated in the form of artificial reefs facilitating their identification and extraction, situation that has reduced their population in that area. Objective: In order to investigate the spawning and intracapsular and larval development of this species as tools for its production in captivity for repopulation purposes. Methods: Eighteen brooders were collected and kept in a closed system with controlled parameters and feeding from April 2017 to September 2018. Growth of parents, spawning of ovigerous masses, number of capsules, and number of embryos and larvae within the capsules, were registered. The main morphological structures of embryos and larvae were documented according to their development. Results: Intracapsular embryonic development and veliger larva until its establishment lasted 14-15 and 31-32 days, respectively. Each 80-88 mm length female produced around 4 ovigerous masses, 627 capsules and 663 993 extracapsular veliger larvae per year. Conclusions: Easy adaptation and reproductive potential shown by H. nigritus in the laboratory are presented as promising strategies for its repopulation and conservation.
AB - Introduction: The marine snail Hexaplex nigritus is a heav ily exploited muricid in the Gulf of California for consumption and handcrafts. When they reproduce, adults aggregated in the form of artificial reefs facilitating their identification and extraction, situation that has reduced their population in that area. Objective: In order to investigate the spawning and intracapsular and larval development of this species as tools for its production in captivity for repopulation purposes. Methods: Eighteen brooders were collected and kept in a closed system with controlled parameters and feeding from April 2017 to September 2018. Growth of parents, spawning of ovigerous masses, number of capsules, and number of embryos and larvae within the capsules, were registered. The main morphological structures of embryos and larvae were documented according to their development. Results: Intracapsular embryonic development and veliger larva until its establishment lasted 14-15 and 31-32 days, respectively. Each 80-88 mm length female produced around 4 ovigerous masses, 627 capsules and 663 993 extracapsular veliger larvae per year. Conclusions: Easy adaptation and reproductive potential shown by H. nigritus in the laboratory are presented as promising strategies for its repopulation and conservation.
KW - Conservation
KW - Controlled conditions
KW - Embryonic development
KW - Gastropods
KW - Gulf of California
KW - Reproductive strategy
UR - http://www.scopus.com/inward/record.url?scp=85092537863&partnerID=8YFLogxK
M3 - Artículo
AN - SCOPUS:85092537863
SN - 0034-7744
VL - 68
SP - 1143
EP - 1158
JO - Revista de Biologia Tropical
JF - Revista de Biologia Tropical
IS - 4
ER -