Results 71 to 80 of about 104,038 (234)
Marine Mammal Science, Volume 42, Issue 3, July 2026.ABSTRACT The American manatee (Trichechus manatus) requires freshwater mainly from rivers and springs to maintain osmoregulatory balance in saline environments. However, in Brazil's semi‐arid Potiguar Basin, manatees now rely solely on submarine freshwater springs because hypersaline estuaries have become unsuitable sources of freshwater.
A. C. O. Meirelles +7 more
wiley +1 more source
Preliminary insight into age and growth of the Iberian chub (Leuciscus pyrenaicus) in the sorraia system [PDF]
, 1995 An investigation of age and growth in the Iberian chub Leuciscus pyrenaicus Gunther, 1868 revealed a seasonal growth pattern, with annulus formation restricted to a short period of the year (May/June). Maximum ages were 6+ for both sexes.
Collares-Pereira, M.J. +1 more
core
Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS
Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 369-389, June 2026.Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro +7 more
wiley +1 more source
Environmental DNA, Volume 8, Issue 3, May–June 2026.The community structure of photosynthetic planktonic microeukaryotes in the floodplain lakes of the Tocantins‐Araguaia River basin is influenced by a combination of environmental filters and spatial processes. Phylogenetic information from this community highlights the importance of conserving less degraded areas to preserve the evolutionary diversity ...
Jocilaine Santos de Jesus +8 more
wiley +1 more source
Boletim do Instituto de Pesca, 2018 A determinação do formato do corpo, razões morfométricas e rendimento corporal é importante para a caracterização das espécies e avaliação do seu potencial produtivo.
Otavio Rechsteiner MAGHELLY +3 more
doaj
Boletim do Instituto de Pesca, 2019 This study aimed to evaluate whether the golden mussel, Limnoperna fortunei, identified in the upper Uruguay River for the first time in 2012, has been incorporated into the diet of the ichthyofauna present in different environments of a Neotropical ...
Sunshine de Ávila-Simas +2 more
doaj +1 more source
Produção de tilápia: mercado, espécie, biologia e recria. [PDF]
, 2011 Mercado da tilápia; Espécies de tilápia; Biologia; Escolha e transporte dos alevinos; Recria de tilápia; Recria em sistema semi-intensivo; Características das instalações; Preparo dos viveiros e manejo dos peixes; Recria em sistema intensivo em tanques ...
LIMA, C. B. +3 more
core
, 2005 Foram elaboradas fichas de caracterização para as espécies classificadas como Criticamente em Perigo (CR), Em Perigo (EN), Vulnerável (VU), Quase Ameaçado (NT) e com Informação Insuficiente (DD). Quando apropriado, a ficha faz referência a subespécies e a populações distintas (populações mi- gradoras e residentes) de uma mesma espécie, que são alvo de ...
Rogado, L. +9 more
openaire +1 more source
Estudos Universitários, 2022 Texto do gênero conto que relata a história de um econtro definitivo entre um sujeito anônimo de hábitos burgueses com a Verdade.
openaire +1 more source
Limnology and Oceanography Letters, Volume 11, Issue 3, May 2026.Abstract Marine mammals can exhibit high plasticity in foraging strategies, but how such plasticity is driven by environmental conditions is poorly understood. The American manatee (Trichechus manatus), a large, endangered herbivore, inhabits marine, estuarine, and freshwater environments.
Camila Carvalho de Carvalho +13 more
wiley +1 more source