Registro Completo |
Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
Data corrente: |
29/11/2018 |
Data da última atualização: |
14/08/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MACIEL, P. O.; ALVES, R. R. |
Afiliação: |
PATRICIA OLIVEIRA MACIEL, CNPASA; ROSIANA RODRIGUES ALVES, CNPASA. |
Título: |
Methods for quantifying eggs and oviposition rate of Dawestrema cycloancistrium (Monogenea: Dactylogyridae), monogenean parasite of Arapaima gigas (Teleostei: Osteoglossidae). |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Journal of Helminthology, 2018. |
DOI: |
10.1017/S0022149X18000901 |
Idioma: |
Inglês |
Notas: |
[Epub ahead of print] |
Conteúdo: |
Dawestrema cycloancistrium is the main ectoparasite causing mortality in fingerlings of pirarucu (Arapaima gigas) in Amazonian aquaculture. Very little is known about the D. cycloancistrium reproductive index and appropriate methods of collecting eggs for investigation. This study aimed to determine the oviposition rate of D. cycloancistrium. To achieve this aim, two egg quantification methods were tested: the estimative method (ME) and the total counting method (MT). Compared with the MT, the ME overestimated the number of eggs counted, which were 2943.5 ± 2840.6 and 1041.5 ± 533 eggs, and the oviposition rate, which was 80.1 ± 58.7 and 31.4 ± 16.4 eggs/parasite/day, for ME and MT, respectively. These results show that for studies quantifying D. cycloancistrium eggs, the total eggs in the sample must be counted, as the estimates made using subsamples are not representative. Using the MT, the oviposition rate for D. cycloancistrium was determined to be 31.4 ± 16.4 eggs per adult parasite per day. The present study demonstrates the egg production capacity of a monogenean species parasite of A. gigas, providing basic biological data for D. cycloancistrium. |
Thesagro: |
Aquicultura; Doença Animal; Pirarucu. |
Thesaurus Nal: |
Aquaculture; Dactylogyridae; Fish diseases; Fish eggs; Monogenea. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 01969naa a2200253 a 4500 001 2100339 005 2019-08-14 008 2018 bl uuuu u00u1 u #d 024 7 $a10.1017/S0022149X18000901$2DOI 100 1 $aMACIEL, P. O. 245 $aMethods for quantifying eggs and oviposition rate of Dawestrema cycloancistrium (Monogenea$bDactylogyridae), monogenean parasite of Arapaima gigas (Teleostei: Osteoglossidae).$h[electronic resource] 260 $c2018 500 $a[Epub ahead of print] 520 $aDawestrema cycloancistrium is the main ectoparasite causing mortality in fingerlings of pirarucu (Arapaima gigas) in Amazonian aquaculture. Very little is known about the D. cycloancistrium reproductive index and appropriate methods of collecting eggs for investigation. This study aimed to determine the oviposition rate of D. cycloancistrium. To achieve this aim, two egg quantification methods were tested: the estimative method (ME) and the total counting method (MT). Compared with the MT, the ME overestimated the number of eggs counted, which were 2943.5 ± 2840.6 and 1041.5 ± 533 eggs, and the oviposition rate, which was 80.1 ± 58.7 and 31.4 ± 16.4 eggs/parasite/day, for ME and MT, respectively. These results show that for studies quantifying D. cycloancistrium eggs, the total eggs in the sample must be counted, as the estimates made using subsamples are not representative. Using the MT, the oviposition rate for D. cycloancistrium was determined to be 31.4 ± 16.4 eggs per adult parasite per day. The present study demonstrates the egg production capacity of a monogenean species parasite of A. gigas, providing basic biological data for D. cycloancistrium. 650 $aAquaculture 650 $aDactylogyridae 650 $aFish diseases 650 $aFish eggs 650 $aMonogenea 650 $aAquicultura 650 $aDoença Animal 650 $aPirarucu 700 1 $aALVES, R. R. 773 $tJournal of Helminthology, 2018.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |