Reproductive biology of king weakfish, Macrodon ancylodon (Perciformes, Sciaenidae) from the northeastern coast of Brazil
Abstract: The reproductive biology of Macrodon ancylodon, a commercially important fish widely distributed along South America’s Atlantic coast, is described from 240 specimens collected in northeastern Brazil. Specimens ranged from 18.2 to 33.5 cm in length, exhibiting positive allometry....
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Universidad de Valparaíso. Facultad de Ciencias del Mar
2018
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oai:scielo:S0718-195720180001000952018-09-11Reproductive biology of king weakfish, Macrodon ancylodon (Perciformes, Sciaenidae) from the northeastern coast of BrazilCardoso,Alana dos SantosSantos,Nayara BarbosaAlmeida,Zafira da Silva deNeta,Raimunda N. Fortes C.Cantanhêde,Lorrane Gabrielle Reproduction estuarine fish gonad gonadosomatic index spawning condition factor Abstract: The reproductive biology of Macrodon ancylodon, a commercially important fish widely distributed along South America’s Atlantic coast, is described from 240 specimens collected in northeastern Brazil. Specimens ranged from 18.2 to 33.5 cm in length, exhibiting positive allometry. Total length at first sexual maturity was 21.13 cm. M. ancylodon has an asynchronous gonadal maturation and would be a batch spawner within a reproductive period. Total weight and length of females do not affect the relative fecundity values in this species. Analysis of the gonadosomatic index, condition factor and frequency of maturational stages shows that M. ancylodon was capable of reproducing throughout the year, despite the fact that spawning peaks were observed during November-December and August-September. The results are evidence that the study area is used by M. ancylodon for reproduction. The data will also be important for the development of stock management strategies.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.53 n.1 20182018-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572018000100095en10.4067/S0718-19572018000100095 |
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Scielo Chile |
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Scielo Chile |
| language |
English |
| topic |
Reproduction estuarine fish gonad gonadosomatic index spawning condition factor |
| spellingShingle |
Reproduction estuarine fish gonad gonadosomatic index spawning condition factor Cardoso,Alana dos Santos Santos,Nayara Barbosa Almeida,Zafira da Silva de Neta,Raimunda N. Fortes C. Cantanhêde,Lorrane Gabrielle Reproductive biology of king weakfish, Macrodon ancylodon (Perciformes, Sciaenidae) from the northeastern coast of Brazil |
| description |
Abstract: The reproductive biology of Macrodon ancylodon, a commercially important fish widely distributed along South America’s Atlantic coast, is described from 240 specimens collected in northeastern Brazil. Specimens ranged from 18.2 to 33.5 cm in length, exhibiting positive allometry. Total length at first sexual maturity was 21.13 cm. M. ancylodon has an asynchronous gonadal maturation and would be a batch spawner within a reproductive period. Total weight and length of females do not affect the relative fecundity values in this species. Analysis of the gonadosomatic index, condition factor and frequency of maturational stages shows that M. ancylodon was capable of reproducing throughout the year, despite the fact that spawning peaks were observed during November-December and August-September. The results are evidence that the study area is used by M. ancylodon for reproduction. The data will also be important for the development of stock management strategies. |
| author |
Cardoso,Alana dos Santos Santos,Nayara Barbosa Almeida,Zafira da Silva de Neta,Raimunda N. Fortes C. Cantanhêde,Lorrane Gabrielle |
| author_facet |
Cardoso,Alana dos Santos Santos,Nayara Barbosa Almeida,Zafira da Silva de Neta,Raimunda N. Fortes C. Cantanhêde,Lorrane Gabrielle |
| author_sort |
Cardoso,Alana dos Santos |
| title |
Reproductive biology of king weakfish, Macrodon ancylodon (Perciformes, Sciaenidae) from the northeastern coast of Brazil |
| title_short |
Reproductive biology of king weakfish, Macrodon ancylodon (Perciformes, Sciaenidae) from the northeastern coast of Brazil |
| title_full |
Reproductive biology of king weakfish, Macrodon ancylodon (Perciformes, Sciaenidae) from the northeastern coast of Brazil |
| title_fullStr |
Reproductive biology of king weakfish, Macrodon ancylodon (Perciformes, Sciaenidae) from the northeastern coast of Brazil |
| title_full_unstemmed |
Reproductive biology of king weakfish, Macrodon ancylodon (Perciformes, Sciaenidae) from the northeastern coast of Brazil |
| title_sort |
reproductive biology of king weakfish, macrodon ancylodon (perciformes, sciaenidae) from the northeastern coast of brazil |
| publisher |
Universidad de Valparaíso. Facultad de Ciencias del Mar |
| publishDate |
2018 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572018000100095 |
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