Reproductive cycle and oviposition in Zidona dufresnei (Caenogastropoda: Volutidae) from northern Patagonia, Argentina
Abstract: This study describes the reproductive cycle in the edible marine snail Zidona dufresnei in San Antonio Bay (Patagonia, Argentina), an unusual population that inhabits shallow waters. Histological techniques together with monthly field observations over a two-year period were used to descri...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_17451000_v11_n8_p869_Roche |
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todo:paper_17451000_v11_n8_p869_Roche2023-10-03T16:31:52Z Reproductive cycle and oviposition in Zidona dufresnei (Caenogastropoda: Volutidae) from northern Patagonia, Argentina Roche, A. Giménez, J. Narvarte, M.A. Egg capsules gametogenesis Gastropoda Mollusca Patagonia cells and cell components edible species eggshell gametogenesis growth histology maturation oviposition photoperiod reproductive cycle resorption shallow water snail water temperature Argentina Rio Negro [Argentina] San Antonio Bay [Rio Negro] Caenogastropoda Gastropoda Mollusca Volutidae Abstract: This study describes the reproductive cycle in the edible marine snail Zidona dufresnei in San Antonio Bay (Patagonia, Argentina), an unusual population that inhabits shallow waters. Histological techniques together with monthly field observations over a two-year period were used to describe the gametogenic cycle, the season of oviposition and the presence of egg capsules. Females were mature from August to April and there was proliferation of the germinal epithelium immediately after evacuation. Growth and resorption of oocytes were observed throughout the study period. Males were reproductively active throughout the year. The histological analysis is consistent with the observations in nature, in which females were recorded depositing egg capsules from late August to late April. The reproductive period seems to be closely related to water temperature and photoperiod. The relatively high seawater temperature in San Antonio Bay may be one of the relevant factors that contributes to the extended period of oviposition and gamete evacuation in Z. dufresnei. Copyright © 2015 The Elliott School of International Affairs. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17451000_v11_n8_p869_Roche |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Egg capsules gametogenesis Gastropoda Mollusca Patagonia cells and cell components edible species eggshell gametogenesis growth histology maturation oviposition photoperiod reproductive cycle resorption shallow water snail water temperature Argentina Rio Negro [Argentina] San Antonio Bay [Rio Negro] Caenogastropoda Gastropoda Mollusca Volutidae |
| spellingShingle |
Egg capsules gametogenesis Gastropoda Mollusca Patagonia cells and cell components edible species eggshell gametogenesis growth histology maturation oviposition photoperiod reproductive cycle resorption shallow water snail water temperature Argentina Rio Negro [Argentina] San Antonio Bay [Rio Negro] Caenogastropoda Gastropoda Mollusca Volutidae Roche, A. Giménez, J. Narvarte, M.A. Reproductive cycle and oviposition in Zidona dufresnei (Caenogastropoda: Volutidae) from northern Patagonia, Argentina |
| topic_facet |
Egg capsules gametogenesis Gastropoda Mollusca Patagonia cells and cell components edible species eggshell gametogenesis growth histology maturation oviposition photoperiod reproductive cycle resorption shallow water snail water temperature Argentina Rio Negro [Argentina] San Antonio Bay [Rio Negro] Caenogastropoda Gastropoda Mollusca Volutidae |
| description |
Abstract: This study describes the reproductive cycle in the edible marine snail Zidona dufresnei in San Antonio Bay (Patagonia, Argentina), an unusual population that inhabits shallow waters. Histological techniques together with monthly field observations over a two-year period were used to describe the gametogenic cycle, the season of oviposition and the presence of egg capsules. Females were mature from August to April and there was proliferation of the germinal epithelium immediately after evacuation. Growth and resorption of oocytes were observed throughout the study period. Males were reproductively active throughout the year. The histological analysis is consistent with the observations in nature, in which females were recorded depositing egg capsules from late August to late April. The reproductive period seems to be closely related to water temperature and photoperiod. The relatively high seawater temperature in San Antonio Bay may be one of the relevant factors that contributes to the extended period of oviposition and gamete evacuation in Z. dufresnei. Copyright © 2015 The Elliott School of International Affairs. |
| format |
JOUR |
| author |
Roche, A. Giménez, J. Narvarte, M.A. |
| author_facet |
Roche, A. Giménez, J. Narvarte, M.A. |
| author_sort |
Roche, A. |
| title |
Reproductive cycle and oviposition in Zidona dufresnei (Caenogastropoda: Volutidae) from northern Patagonia, Argentina |
| title_short |
Reproductive cycle and oviposition in Zidona dufresnei (Caenogastropoda: Volutidae) from northern Patagonia, Argentina |
| title_full |
Reproductive cycle and oviposition in Zidona dufresnei (Caenogastropoda: Volutidae) from northern Patagonia, Argentina |
| title_fullStr |
Reproductive cycle and oviposition in Zidona dufresnei (Caenogastropoda: Volutidae) from northern Patagonia, Argentina |
| title_full_unstemmed |
Reproductive cycle and oviposition in Zidona dufresnei (Caenogastropoda: Volutidae) from northern Patagonia, Argentina |
| title_sort |
reproductive cycle and oviposition in zidona dufresnei (caenogastropoda: volutidae) from northern patagonia, argentina |
| url |
http://hdl.handle.net/20.500.12110/paper_17451000_v11_n8_p869_Roche |
| work_keys_str_mv |
AT rochea reproductivecycleandovipositioninzidonadufresneicaenogastropodavolutidaefromnorthernpatagoniaargentina AT gimenezj reproductivecycleandovipositioninzidonadufresneicaenogastropodavolutidaefromnorthernpatagoniaargentina AT narvartema reproductivecycleandovipositioninzidonadufresneicaenogastropodavolutidaefromnorthernpatagoniaargentina |
| _version_ |
1782025704518451200 |