Hanging culture of juveniles of the winged oyster Pteria sterna in two baskets of different design
The aim of this study was to determine the growth and survival of juveniles of the winged oyster Pteria sterna, culture in two types of baskets manufactured with local materials. These were ‘one floor baskets’ (OFB) and ‘three floor baskets’ (TFB), hung from two ‘long lines’ in two study sites, Ayan...
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| Format: | Article |
| Language: | English |
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Universidad Técnica de Manabí
2019-12-01
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| Series: | AquaTechnica |
| Subjects: | |
| Online Access: | https://revistas.utm.edu.ec/index.php/aquatechnica/article/view/2149 |
| _version_ | 1818217322654990336 |
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| author | Luis Freites Franklin Jara María Gregori Jimmy Villón Adrián Márquez Daniel Rodríguez Pesantes César Lodeiros |
| author_facet | Luis Freites Franklin Jara María Gregori Jimmy Villón Adrián Márquez Daniel Rodríguez Pesantes César Lodeiros |
| author_sort | Luis Freites |
| collection | DOAJ |
| description | The aim of this study was to determine the growth and survival of juveniles of the winged oyster Pteria sterna, culture in two types of baskets manufactured with local materials. These were ‘one floor baskets’ (OFB) and ‘three floor baskets’ (TFB), hung from two ‘long lines’ in two study sites, Ayangue and Palmar, Province of Santa Elena, Ecuador, over a five months experimental culture period. Environmental variables monitored included total particulate matter and its organic and phytoplanktonic fraction (chlorophyll a), temperature, and dissolved oxygen. Individuals showed an initial length, height (dorso-ventral) and thickness (inter-valvar) shell axis of 18.7 ± 0.32; 18.2 ± 0.29 and 7.4 ± 0.18 mm, respectively; and the soft tissue mass, shell mass and total mass were: 1.03 ± 0.04; 0.11 ± 0.005; 1.14 ± 0.04 g, respectively. At the end of the period, biometric and survival parameters were recorded. The individuals cultured in Ayangue using TFB showed increments in shell, soft tissues and total mass that were significantly higher than those from the OFB. Similar results, but with lower increments, were obtained by the individuals cultivated at Palmar site. The ANOVA II showed that the site, type of basket and the interaction between the two had a significant effect on the growth of the oysters. Survival exceeded 80% at both sites and for both basket types, but no significant differences were observed between site and basket type. Considering the growth and survival obtained for both types of baskets, we recommend the TFB baskets for winged oyster cultivation in these regions.
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| first_indexed | 2024-12-12T07:06:02Z |
| format | Article |
| id | doaj.art-db8f84e712f6450fbf63a19311977e30 |
| institution | Directory Open Access Journal |
| issn | 2737-6095 |
| language | English |
| last_indexed | 2024-12-12T07:06:02Z |
| publishDate | 2019-12-01 |
| publisher | Universidad Técnica de Manabí |
| record_format | Article |
| series | AquaTechnica |
| spelling | doaj.art-db8f84e712f6450fbf63a19311977e302022-12-22T00:33:44ZengUniversidad Técnica de ManabíAquaTechnica2737-60952019-12-01112839https://doi.org/10.33936/at.v1i1.2149Hanging culture of juveniles of the winged oyster Pteria sterna in two baskets of different designLuis Freites0https://orcid.org/0000-0002-6432-7366Franklin Jara1María Gregori2Jimmy Villón3Adrián Márquez4https://orcid.org/0000-0001-9122-6539Daniel Rodríguez Pesantes5César Lodeiros6https://orcid.org/0000-0001-9598-2235Universidad Estatal de la Península de Santa Elena - EcuadorUniversidad Estatal de la Península de Santa Elena - EcuadorUniversidad Estatal de la Península de Santa Elena - EcuadorUniversidad Estatal de la Península de Santa Elena - EcuadorEscuela Superior Politécnica del Litoral (ESPOL) - EcuadorEscuela Superior Politécnica del Litoral (ESPOL) - EcuadorUniversidad Técnica de Manabí - EcuadorThe aim of this study was to determine the growth and survival of juveniles of the winged oyster Pteria sterna, culture in two types of baskets manufactured with local materials. These were ‘one floor baskets’ (OFB) and ‘three floor baskets’ (TFB), hung from two ‘long lines’ in two study sites, Ayangue and Palmar, Province of Santa Elena, Ecuador, over a five months experimental culture period. Environmental variables monitored included total particulate matter and its organic and phytoplanktonic fraction (chlorophyll a), temperature, and dissolved oxygen. Individuals showed an initial length, height (dorso-ventral) and thickness (inter-valvar) shell axis of 18.7 ± 0.32; 18.2 ± 0.29 and 7.4 ± 0.18 mm, respectively; and the soft tissue mass, shell mass and total mass were: 1.03 ± 0.04; 0.11 ± 0.005; 1.14 ± 0.04 g, respectively. At the end of the period, biometric and survival parameters were recorded. The individuals cultured in Ayangue using TFB showed increments in shell, soft tissues and total mass that were significantly higher than those from the OFB. Similar results, but with lower increments, were obtained by the individuals cultivated at Palmar site. The ANOVA II showed that the site, type of basket and the interaction between the two had a significant effect on the growth of the oysters. Survival exceeded 80% at both sites and for both basket types, but no significant differences were observed between site and basket type. Considering the growth and survival obtained for both types of baskets, we recommend the TFB baskets for winged oyster cultivation in these regions. https://revistas.utm.edu.ec/index.php/aquatechnica/article/view/2149growthsuspended culturepearl oysterpredationeastern tropical pacificcrecimientocultivo suspendidoostras perlerasdepredaciónpacifico tropical oriental |
| spellingShingle | Luis Freites Franklin Jara María Gregori Jimmy Villón Adrián Márquez Daniel Rodríguez Pesantes César Lodeiros Hanging culture of juveniles of the winged oyster Pteria sterna in two baskets of different design AquaTechnica growth suspended culture pearl oyster predation eastern tropical pacific crecimiento cultivo suspendido ostras perleras depredación pacifico tropical oriental |
| title | Hanging culture of juveniles of the winged oyster Pteria sterna in two baskets of different design |
| title_full | Hanging culture of juveniles of the winged oyster Pteria sterna in two baskets of different design |
| title_fullStr | Hanging culture of juveniles of the winged oyster Pteria sterna in two baskets of different design |
| title_full_unstemmed | Hanging culture of juveniles of the winged oyster Pteria sterna in two baskets of different design |
| title_short | Hanging culture of juveniles of the winged oyster Pteria sterna in two baskets of different design |
| title_sort | hanging culture of juveniles of the winged oyster pteria sterna in two baskets of different design |
| topic | growth suspended culture pearl oyster predation eastern tropical pacific crecimiento cultivo suspendido ostras perleras depredación pacifico tropical oriental |
| url | https://revistas.utm.edu.ec/index.php/aquatechnica/article/view/2149 |
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