Growth, mortality and susceptibility of oyster Crassostrea spp. to Perkinsus spp. infection during on growing in northeast Brazil
Abstract Crassostrea rhizophorae and C. gasar oysters are cultivated in the northeast region. Perkinsus parasites infect bivalves, and their effects on oysters from tropical regions are poorly understood. This study evaluated the impact of Perkinsus infection on the productive traits of native oyste...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Colégio Brasileiro de Parasitologia Veterinaria
2017-11-01
|
| Series: | Revista Brasileira de Parasitologia Veterinária |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612017005015103&lng=en&tlng=en |
| _version_ | 1818186868260339712 |
|---|---|
| author | Marcos Paiva Scardua Rogério Tubino Vianna Sâmia Sousa Duarte Natanael Dantas Farias Maria Luíza Dias Correia Helen Taynara Araújo dos Santos Patricia Mirella da Silva |
| author_facet | Marcos Paiva Scardua Rogério Tubino Vianna Sâmia Sousa Duarte Natanael Dantas Farias Maria Luíza Dias Correia Helen Taynara Araújo dos Santos Patricia Mirella da Silva |
| author_sort | Marcos Paiva Scardua |
| collection | DOAJ |
| description | Abstract Crassostrea rhizophorae and C. gasar oysters are cultivated in the northeast region. Perkinsus parasites infect bivalves, and their effects on oysters from tropical regions are poorly understood. This study evaluated the impact of Perkinsus infection on the productive traits of native oysters. Oysters were sampled bimonthly during 7 months, from July 2010 to February 2011, to evaluate growth rate, mortality and shell color patterns (white and dark-gray) (n = 500), and to determine the prevalence and intensity of Perkinsus (n = 152). Perkinsus and Crassostrea species were determined using molecular tools. Results showed that most dark-gray (90%, n = 20) and white (67%, n = 18) oysters were C. gasar and C. rhizophorae, respectively. Oysters showed a high growth rate and moderate cumulative mortality (44%). C. gasar oysters grew better and showed lower mortality and lower incidence of Perkinsus compared to C. rhizophorae. The mean prevalence of Perkinsus was moderate (48%), but the infection intensity was light (2.2). Perkinsosis affected very small oysters (19.4 mm). In conclusion, native oysters, especially C. gasar, have a great potential for culture, mortality is not associated with perkinsosis, and the shell color of oysters can be used to improve selection for spats with better performance. |
| first_indexed | 2024-12-11T23:01:58Z |
| format | Article |
| id | doaj.art-9876d7afe7f84a85ab196b11c3dd4c6f |
| institution | Directory Open Access Journal |
| issn | 1984-2961 |
| language | English |
| last_indexed | 2024-12-11T23:01:58Z |
| publishDate | 2017-11-01 |
| publisher | Colégio Brasileiro de Parasitologia Veterinaria |
| record_format | Article |
| series | Revista Brasileira de Parasitologia Veterinária |
| spelling | doaj.art-9876d7afe7f84a85ab196b11c3dd4c6f2022-12-22T00:47:03ZengColégio Brasileiro de Parasitologia VeterinariaRevista Brasileira de Parasitologia Veterinária1984-29612017-11-01010.1590/s1984-29612017061S1984-29612017005015103Growth, mortality and susceptibility of oyster Crassostrea spp. to Perkinsus spp. infection during on growing in northeast BrazilMarcos Paiva ScarduaRogério Tubino ViannaSâmia Sousa DuarteNatanael Dantas FariasMaria Luíza Dias CorreiaHelen Taynara Araújo dos SantosPatricia Mirella da SilvaAbstract Crassostrea rhizophorae and C. gasar oysters are cultivated in the northeast region. Perkinsus parasites infect bivalves, and their effects on oysters from tropical regions are poorly understood. This study evaluated the impact of Perkinsus infection on the productive traits of native oysters. Oysters were sampled bimonthly during 7 months, from July 2010 to February 2011, to evaluate growth rate, mortality and shell color patterns (white and dark-gray) (n = 500), and to determine the prevalence and intensity of Perkinsus (n = 152). Perkinsus and Crassostrea species were determined using molecular tools. Results showed that most dark-gray (90%, n = 20) and white (67%, n = 18) oysters were C. gasar and C. rhizophorae, respectively. Oysters showed a high growth rate and moderate cumulative mortality (44%). C. gasar oysters grew better and showed lower mortality and lower incidence of Perkinsus compared to C. rhizophorae. The mean prevalence of Perkinsus was moderate (48%), but the infection intensity was light (2.2). Perkinsosis affected very small oysters (19.4 mm). In conclusion, native oysters, especially C. gasar, have a great potential for culture, mortality is not associated with perkinsosis, and the shell color of oysters can be used to improve selection for spats with better performance.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612017005015103&lng=en&tlng=enOyster productive traitsPerkinsus marinusPerkinsus beihaiensisPCR-RFLPITS rDNA16S mtDNA |
| spellingShingle | Marcos Paiva Scardua Rogério Tubino Vianna Sâmia Sousa Duarte Natanael Dantas Farias Maria Luíza Dias Correia Helen Taynara Araújo dos Santos Patricia Mirella da Silva Growth, mortality and susceptibility of oyster Crassostrea spp. to Perkinsus spp. infection during on growing in northeast Brazil Revista Brasileira de Parasitologia Veterinária Oyster productive traits Perkinsus marinus Perkinsus beihaiensis PCR-RFLP ITS rDNA 16S mtDNA |
| title | Growth, mortality and susceptibility of oyster Crassostrea spp. to Perkinsus spp. infection during on growing in northeast Brazil |
| title_full | Growth, mortality and susceptibility of oyster Crassostrea spp. to Perkinsus spp. infection during on growing in northeast Brazil |
| title_fullStr | Growth, mortality and susceptibility of oyster Crassostrea spp. to Perkinsus spp. infection during on growing in northeast Brazil |
| title_full_unstemmed | Growth, mortality and susceptibility of oyster Crassostrea spp. to Perkinsus spp. infection during on growing in northeast Brazil |
| title_short | Growth, mortality and susceptibility of oyster Crassostrea spp. to Perkinsus spp. infection during on growing in northeast Brazil |
| title_sort | growth mortality and susceptibility of oyster crassostrea spp to perkinsus spp infection during on growing in northeast brazil |
| topic | Oyster productive traits Perkinsus marinus Perkinsus beihaiensis PCR-RFLP ITS rDNA 16S mtDNA |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-29612017005015103&lng=en&tlng=en |
| work_keys_str_mv | AT marcospaivascardua growthmortalityandsusceptibilityofoystercrassostreaspptoperkinsussppinfectionduringongrowinginnortheastbrazil AT rogeriotubinovianna growthmortalityandsusceptibilityofoystercrassostreaspptoperkinsussppinfectionduringongrowinginnortheastbrazil AT samiasousaduarte growthmortalityandsusceptibilityofoystercrassostreaspptoperkinsussppinfectionduringongrowinginnortheastbrazil AT natanaeldantasfarias growthmortalityandsusceptibilityofoystercrassostreaspptoperkinsussppinfectionduringongrowinginnortheastbrazil AT marialuizadiascorreia growthmortalityandsusceptibilityofoystercrassostreaspptoperkinsussppinfectionduringongrowinginnortheastbrazil AT helentaynaraaraujodossantos growthmortalityandsusceptibilityofoystercrassostreaspptoperkinsussppinfectionduringongrowinginnortheastbrazil AT patriciamirelladasilva growthmortalityandsusceptibilityofoystercrassostreaspptoperkinsussppinfectionduringongrowinginnortheastbrazil |