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| Fazzi-Gomes,Paola; Guerreiro,Sávio; Palheta,Glauber David Almeida; Melo,Nuno Filipe Alves Correa de; Santos,Sidney; Hamoy,Igor. |
| Abstract Colossoma macropomum is the second largest scaled fish of the Amazon. It is economically important for commercial fisheries and for aquaculture, but few studies have examined the diversity and genetic structure of natural populations of this species. The aim of this study was to investigate the levels of genetic variability and connectivity that exist between three natural populations of C. macropomum from the Amazon basin. In total, 247 samples were collected from the municipalities of Tefé, Manaus, and Santarém. The populations were genotyped using a panel of 12 multiplex microsatellite markers. The genetic diversity found in these populations was high and similar to other populations described in the literature. These populations showed a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tambaqui; Genetic variability; Gene flow; Genetic structure; Single sequence repeats. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000100142 |
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| Medeiros Junior,Elias Fernandes de; Uehara,Silvio Akira; Rodrigues,Evelize Cristina; Palheta,Glauber David Almeida; Melo,Nuno Filipe Alves Correia de; Freire,Lícius de Sá; Takata,Rodrigo. |
| ABSTRACT The objective of this study was to evaluate menthol and eugenol as anesthetics for early juveniles of curimba, Prochilodus lineatus. Juveniles of 4.0±0.5 g and a total length of 8.8±0.1 cm were exposed to the anesthetics menthol (20, 30, 40, 50, 60, 70, and 80 mg L−1) and eugenol (20, 30, 40, 50, 60, and 70 mg L−1) up to deep anesthesia. The anesthetic effects were evaluated measuring the induction time to deep anesthesia (characterized by loss of equilibrium, absence of swimming, reduction of opercular movements, and responses only to intense tactile stimuli), recovery time, time to appetite return, and mortality rate after 96 h of procedure. The concentrations between 60 to 80 mg of menthol L−1 provided the lowest time of induction. Increased... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aquaculture; Physiology; Prochilodus lineatus; Stress. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100107 |
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| Campos,Paula Nepomuceno; Paiva,Rosildo Santos; Bonecker,Ana Cristina Teixeira; Melo,Nuno Filipe Alves Correia de; Palheta,Glauber David Almeida; Contente,Cristiane Teixeira; Ramos,Caio Aguiar Rodrigues. |
| The family Bathylagidae contains eight genera and 22 species, of which only five occur in the Southwest Atlantic. Until recently, only adult specimens of the bathylaginin Melanolagus bericoides had been recorded off southern Brazil, between the Santa Marta Cape and Rio Grande (31° S and 49° W). The present work reports the first occurrence of Dolicholagus longirostris larvae on the northern Brazilian coast, expanding its distribution in the Southwest Atlantic. The two specimens found were collected near the mouth of the Amazon River (02° 00' 19" N, 47° 03' 30" W, and 00° 49' 06" N, 46° 25' 09" W). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Longsnout blacksmelt; Bathylagidae; Fish larvae; Distribution; North Brazilian coast. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032007000100026 |
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