Results 71 to 80 of about 800 (196)
Journal of Biogeography, Volume 51, Issue 11, Page 2243-2258, November 2024.Abstract Aim Climate change can have a broad range of impacts on the physiology and behaviour of animals. These effects can be mediated by the presence of other species in the community, but current forecasts of species responses to climate change largely ignore biological interactions.
Minami Sasaki +3 more
wiley +1 more source
Boletim do Instituto de Pesca, 2018 Foi determinada a curva de seletividade das redes de emalhar utilizadas na captura do acará, Geophagus brasiliensis, segundo Gulland (1969). O resultado é: c*(L)= e-0,3104(L - 1,3283 m)2 Onde: c*(L)= frequência relativa de retenção L ...
Arlete MOTA +2 more
doaj
Cage fish farm causes the homogenization of wild fish diets of different sizes
Boletim do Instituto de PescaWe evaluated the influences of cage fish farm on the individual diet of Geophagus sveni, a wild species nonnative to the Paraná river basin, and hypothesized that, in areas where there are no cage fish farms (CT), differences in feeding occur between ...
Bruna Caroline Kotz Kliemann +5 more
doaj +1 more source
Geophagus crocatus Hauser & López-Fernández, 2013, new species
, 2013 Geophagus crocatus, new species Fig. 1–5, Table 1 Holotype. UG/CSBD 1656 (Ex ROM 87106), 1, 165.6 mm SL; Guyana: East Berbice: Berbice River, about 14 air km upstream of Kwakwani at Mappa Lagoon camp (5.17456°N 58.16336°W); H. López-Fernández, D. Taphorn, D. Bloom, J. Maldonado, C. Bernard and E. Holm, 20 March 2010. Paratypes.
Hauser, Frances E. +1 more
openaire +2 more sources
Environmental DNA, Volume 6, Issue 5, September–October 2024.Early detection of invading alien freshwater fish can be challenging due to the difficulty observing fish in low abundance. To understand the effectiveness of eDNA sampling, we used our model to quantify the relative efficiency of two eDNA sampling methods (active eDNA, passive eDNA) and fyke netting as well as the number of replicate samples required ...
Lenore Morris +7 more
wiley +1 more source
Brazilian Archives of Biology and Technology, 2006 This study aimed to assess the influence of the environment on fish health. Samples of Hoplias malabaricus and Geophagus brasiliensis, were collected from three different environments: area I was urban and areas II and III were rural.
Silvia Romão +4 more
doaj +1 more source
Effects of short‐ and long‐term enrichment on brain and behavior in Trinidadian guppies
Ethology, Volume 130, Issue 3, March 2024.Environmental enrichment often alters behavior in captive animals. Here, we exposed guppies either to short‐term (two week) or long‐term (birth through 12 weeks) enrichment and measured growth, brain size, and neophobic behaviors. Females responded more strongly overall to enrichment in both short‐ and long‐term.
R. Quinn Iffert, Laura R. Stein
wiley +1 more source
, 2018 Figure 5 Caudal fin colour pattern. A Geophagus multiocellus, UFRJ 8217, topotype. B Geophagus santosi, UFRJ 9998, topotype. Scale bar 10 mm.
Mattos, José L.O., Costa, Wilson J.E.M.
core +1 more source
, 2022 FIGURE 3. Schematic representation of non-melanophoric flank marks, and part of the fin marks present in species of Geophagus.Published as part of Deprá, Gabriel De Carvalho, Ohara, Willian Massaharu & Silva, Hugmar Pains, 2022, Geophagus pyrineusi: a ...
Silva, Hugmar Pains +2 more
core +1 more source