A5030669327- Fish biology, ecology, and behavior
- Fish Biology and Ecology Studies
- Fish Ecology and Management Studies
- Reproductive biology and impacts on aquatic species
- Mosquito-borne diseases and control
- Ichthyology and Marine Biology
- Aquaculture Nutrition and Growth
- Invertebrate Immune Response Mechanisms
- Aquaculture disease management and microbiota
- Parasite Biology and Host Interactions
A total of 312 adults matrinxã were captured bimonthly, between 2011-2012, in two sites the rio São Francisco: immediately downstream Três Marias Dam (site 1) and confluence with Abaeté 2). Specimens Brycon orthotaenia from site 2 presented higher values length (32.24 ± 5.70 cm for females 26.64 3.79 males) body weight (506.66 332.17 g 267.36 145.84 males), when compared 1. In was registered highest GSI means (9.97 2.96 0.93 0.52 1 means. Reproduction period occurred October to February....
The digestive tracts of 44 specimens Schizodon knerii were studied using anatomical, histological and histochemical techniques. mouth has terminal position, the lip epithelium is squamous stratified with mucous, claviform cells taste buds, teeth have an incisive form tongue a mucous buds. oropharynx cavity formed by gill apparatus pharyngeal teeth. oesophagus presented pleated mucosa, cells, oesophageal glands stomach cardiac, fundic pyloric regions, simple prismatic tubular glands, none in...
AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 19:195-200 (2013) - DOI: https://doi.org/10.3354/ab00531 NOTE Downstream impacts of a dam and influence tributary on reproductive success Leporinus reinhardti in São Francisco River André Alberto Weber1, Diego Mendes Ferreira Nunes1, Rafael Zeferino Gomes1, Elizete Rizzo2, Kléber Biana Santiago3, Nilo Bazzoli1,* 1Laboratório de...
This paper aims to establish possible changes in the main reproductive parameters of so-called piau-branco, Schizodon knerii, three sections São Francisco River basin. Fish (n = 388) were captured quarterly between May 2012 and April 2013 from (SFR): section 1 Três Marias Reservoir (TMR), a lentic environment; 2 SFR, first 34 km downstream TMR, lotic environment which temperature, oxygen levels, flow are not suitable for reproduction; 3 34–54 TMR after confluence with Abaeté River, levels...
Abstract: In order to assess the influence of Três Marias dam on reproduction white piranha, Serrasalmus brandtii, 1569 specimens captured from June 2011 May 2012 in three sections São Francisco River basin were analyzed: section 1 = reservoir (TMR); 2 (SFR) segment immediately downstream TMR; and 3 SFR at confluence with Abaeté River. Total length (TL), body weight (BW), gonadosomatic index (GSI), gonadal maturation stages determined for each specimen, while vitellogenic follicle diameter,...
O objetivo deste trabalho foi comparar dois protocolos de hipofisação, na indução à desova curimatã-pacu.Testou-se a aplicação dose única ou duas doses extrato bruto hipófise carpa-comum. Não houve diferença significativa entre os quanto às taxas fêmeas que desovaram, fertilização e larvas deformadas. A resultou em valores horas-graus até extrusão dos ovócitos maiores do doses. uma representou menor consumode água, energia tempo. protocolo da pode ser utilizado como alternativa para curimatã-pacu.
Abstract In this study, we determined the main reproductive parameters of piau gordura, Leporinus piau, in two sections São Francisco River basin. Between May 2015 and April 2016, a total 573 specimens were captured from lentic environment (section 1), Três Marias Reservoir (TMR), lotic 2), downstream TMR at confluence (SFR) with Abaeté River. Analysis activity showed that L. both reproduced, but females males section 1 exhibited higher length, body weight, Fulton condition factor,...
Abstract The release of water from the reservoir hypolimnion, lower concentration oxygen and anthropogenic regulation river flow, could affect reproduction fish, especially migratory species. However, little is known about effects these changes in on non-migratory In this sense, Acestrohynchus lacustris was evaluated two sections São Francisco River, Minas Gerais, Brazil. Section 1, located immediately downstream Três Marias Dam (18°09’31.65”S 45°13’36.00”W) section 2, at confluence Abaeté...
The gametogenesis and reproduction of S. elegans from the São Francisco River at Três Marias, Minas Gerais, were analyzed in this study. Steindachrina is a species abundant basin an important fish food chain. size first gonadal maturation (indicated by total length shortest spermatid male spawned female) was 10.5 cm 15.0 cm, respectively. Reproduction occurred more frequently September to April. This period had high water temperature values. A frequency females observed mature stages height...