Reproductive cycle of Crassostrea gasar cultivated in three different locations at the Estuarine Complex of Paranaguá (PR)
The reproductive cycle is an essential aspect of oyster farming. Understanding the period of each sexual stage aids in planning oyster harvest, seed collection with artificial collectors, and reproductive season for hatchery seed production. In this sense, this work evaluated the reproductive cycle...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Instituto Oceanográfico da Universidade de São Paulo
2024-04-01
|
| Series: | Ocean and Coastal Research |
| Subjects: | |
| Online Access: | https://www.revistas.usp.br/ocr/article/view/232031 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850154730256334848 |
|---|---|
| author | Taís Serpa Afonso Evelyn Zenira de Araújo Simone Sühnel Rodolfo Luis Petersen Francisco José Lagreze-Squella |
| author_facet | Taís Serpa Afonso Evelyn Zenira de Araújo Simone Sühnel Rodolfo Luis Petersen Francisco José Lagreze-Squella |
| author_sort | Taís Serpa Afonso |
| collection | DOAJ |
| description |
The reproductive cycle is an essential aspect of oyster farming. Understanding the period of each sexual stage aids in planning oyster harvest, seed collection with artificial collectors, and reproductive season for hatchery seed production. In this sense, this work evaluated the reproductive cycle of Crassostrea gasar oysters cultivated in three important oyster farming locations in the Estuarine Complex of Paranaguá, Rasa Island, Medeiros, and Ponta Oeste (Mel Island), with monthly oyster sampling in each sampling site. Temperature and salinity were recorded in loco at each sampling time. In the laboratory, oysters were identified and measured; tissue samples were collected for molecular identification of species; and histology was conducted for reproductive cycle analysis. Histological examination of the gonadal tissue was performed with slides stained with Harris hematoxylin and eosin. Salinity and temperature data showed no differences between the three sampling sites during the studied period. Molecular analysis showed that the oysters sampled were C. gasar (100%). Histological analysis showed intense spawning of C. gasar in December and February (26.72 °C) and June (20 °C). There was a resting stage in both males and females during winter. Some oysters (n = 21) were parasitized by Bucephalus sp., and it was impossible to determine oyster sex.
|
| format | Article |
| id | doaj-art-3ea081cb493747e2ac3ffda6b3c3870d |
| institution | OA Journals |
| issn | 2675-2824 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Instituto Oceanográfico da Universidade de São Paulo |
| record_format | Article |
| series | Ocean and Coastal Research |
| spelling | doaj-art-3ea081cb493747e2ac3ffda6b3c3870d2025-08-20T02:25:12ZengInstituto Oceanográfico da Universidade de São PauloOcean and Coastal Research2675-28242024-04-0172Suppl. 1Reproductive cycle of Crassostrea gasar cultivated in three different locations at the Estuarine Complex of Paranaguá (PR)Taís Serpa Afonso0Evelyn Zenira de Araújo1Simone Sühnel2Rodolfo Luis Petersen3Francisco José Lagreze-Squella4Universidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal de Santa CatarinaUniversidade Federal do ParanáUniversidade Federal do Paraná The reproductive cycle is an essential aspect of oyster farming. Understanding the period of each sexual stage aids in planning oyster harvest, seed collection with artificial collectors, and reproductive season for hatchery seed production. In this sense, this work evaluated the reproductive cycle of Crassostrea gasar oysters cultivated in three important oyster farming locations in the Estuarine Complex of Paranaguá, Rasa Island, Medeiros, and Ponta Oeste (Mel Island), with monthly oyster sampling in each sampling site. Temperature and salinity were recorded in loco at each sampling time. In the laboratory, oysters were identified and measured; tissue samples were collected for molecular identification of species; and histology was conducted for reproductive cycle analysis. Histological examination of the gonadal tissue was performed with slides stained with Harris hematoxylin and eosin. Salinity and temperature data showed no differences between the three sampling sites during the studied period. Molecular analysis showed that the oysters sampled were C. gasar (100%). Histological analysis showed intense spawning of C. gasar in December and February (26.72 °C) and June (20 °C). There was a resting stage in both males and females during winter. Some oysters (n = 21) were parasitized by Bucephalus sp., and it was impossible to determine oyster sex. https://www.revistas.usp.br/ocr/article/view/232031Mangrove oysterOyster farmingSexual stagesReproductive cycleTrematoda parasitism |
| spellingShingle | Taís Serpa Afonso Evelyn Zenira de Araújo Simone Sühnel Rodolfo Luis Petersen Francisco José Lagreze-Squella Reproductive cycle of Crassostrea gasar cultivated in three different locations at the Estuarine Complex of Paranaguá (PR) Ocean and Coastal Research Mangrove oyster Oyster farming Sexual stages Reproductive cycle Trematoda parasitism |
| title | Reproductive cycle of Crassostrea gasar cultivated in three different locations at the Estuarine Complex of Paranaguá (PR) |
| title_full | Reproductive cycle of Crassostrea gasar cultivated in three different locations at the Estuarine Complex of Paranaguá (PR) |
| title_fullStr | Reproductive cycle of Crassostrea gasar cultivated in three different locations at the Estuarine Complex of Paranaguá (PR) |
| title_full_unstemmed | Reproductive cycle of Crassostrea gasar cultivated in three different locations at the Estuarine Complex of Paranaguá (PR) |
| title_short | Reproductive cycle of Crassostrea gasar cultivated in three different locations at the Estuarine Complex of Paranaguá (PR) |
| title_sort | reproductive cycle of crassostrea gasar cultivated in three different locations at the estuarine complex of paranagua pr |
| topic | Mangrove oyster Oyster farming Sexual stages Reproductive cycle Trematoda parasitism |
| url | https://www.revistas.usp.br/ocr/article/view/232031 |
| work_keys_str_mv | AT taisserpaafonso reproductivecycleofcrassostreagasarcultivatedinthreedifferentlocationsattheestuarinecomplexofparanaguapr AT evelynzeniradearaujo reproductivecycleofcrassostreagasarcultivatedinthreedifferentlocationsattheestuarinecomplexofparanaguapr AT simonesuhnel reproductivecycleofcrassostreagasarcultivatedinthreedifferentlocationsattheestuarinecomplexofparanaguapr AT rodolfoluispetersen reproductivecycleofcrassostreagasarcultivatedinthreedifferentlocationsattheestuarinecomplexofparanaguapr AT franciscojoselagrezesquella reproductivecycleofcrassostreagasarcultivatedinthreedifferentlocationsattheestuarinecomplexofparanaguapr |