Fishers’ knowledge on the ecology, impacts and benefits of the non-native peacock bass Cichla kelberi in a coastal river in southeastern Brazil

2021 ◽  
Author(s):  
Paula Araujo Catelani ◽  
Ana Cristina Petry ◽  
Fernando Mayer Pelicice ◽  
Renato Azevedo Matias Silvano
Keyword(s):  
Southeastern Brazil ◽  
Coastal River ◽  
Peacock Bass

Abundance of invasive peacock bass increases with water residence time of reservoirs in southeastern Brazil

Hydrobiologia ◽  
2017 ◽  
Vol 817 (1) ◽  
pp. 155-166 ◽  
Author(s):  
Ana Clara Sampaio Franco ◽  
Luciano Neves dos Santos ◽  
Ana Cristina Petry ◽  
Emili García-Berthou
Keyword(s):  
Residence Time ◽  
Southeastern Brazil ◽  
Water Residence Time ◽  
Peacock Bass

scholarly journals Reproduction of Cichla kelberi Kullander and Ferreira, 2006 introduced into an artificial lake in southeastern Brazil

2009 ◽  
Vol 69 (1) ◽  
pp. 175-183 ◽  
Author(s):  
LM. Gomiero ◽  
GA. Villares Junior ◽  
F. Naous
Keyword(s):  
Population Growth ◽  
Parental Care ◽  
The State ◽  
Southeastern Brazil ◽  
Artificial Lake ◽  
External Fertilization ◽  
Reproductive Characteristics ◽  
Males And Females ◽  
The Mean ◽  
Peacock Bass

The objective of this study was to characterize the reproduction of Cichla kelberi in an artificial lake, located in the municipality of Leme, in the state of São Paulo, Brazil. Breeding occurred in spring, and summer. The L50 and the L100 of this species were 192 and 235 mm (L50), for males and females, respectively, and 290 mm (L100) for both sexes. Spawning was parceled. The oocytes matured at a size of 428.4 µm, reaching their maximum at 2,203.2 µm. A mean of fecundity were of 12,129.2 oocytes, with the mean of oocytes in each batch of 4,897.7. This species has external fertilization, is nonmigratory, and with parental care of the young. Various attributes of the peacock bass make their introduction a temptation. However, due to their feeding and reproductive characteristics, they have no natural predators, making it difficult to control their population growth or eradicate them.

A new glanapterygine catfish of the genus Listrura (Siluriformes: Trichomycteridae) from the southeastern Brazilian coastal plains

Zootaxa ◽  
2006 ◽  
Vol 1142 (1) ◽  
pp. 43-50 ◽  
Author(s):  
LEANDRO VILLA-VERDE ◽  
WILSON J.E.M. COSTA
Keyword(s):  
New Species ◽  
Relative Position ◽  
Southeastern Brazil ◽  
Coastal Plains ◽  
Paulo State ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Fin Rays ◽  
Coastal River ◽  
Small Tributary

Listrura picinguabae, new species, is described from small tributary streams of rio da Fazenda, an isolated coastal river in Picinguaba, São Paulo State, southeastern Brazil. It is distinguished from all other trichomycterids, except L. nematopteryx, in possessing a single long pectoral-fin ray. It differs from L. nematopteryx by a combination of features including relative position of anal and dorsal-fin origins, higher number of anal-fin rays and opercular and interopercular odontodes, and morphology of the urohyal.

scholarly journals Seasonal and ontogenetic variations in the diet of Cichla kelberi Kullander and Ferreira, 2006 introduced in an artificial lake in southeastern Brazil

2010 ◽  
Vol 70 (4) ◽  
pp. 1033-1037 ◽  
Author(s):  
LM Gomiero ◽  
GA Villares Junior ◽  
F Naous
Keyword(s):  
Fish Species ◽  
Oreochromis Niloticus ◽  
Seasonal Cycle ◽  
Prey Type ◽  
Southeastern Brazil ◽  
Foraging Activity ◽  
Artificial Lake ◽  
High Frequencies ◽  
Peacock Bass

The diet of Cichla kelberi introduced in an artificial lake in Leme-SP was predominantly composed of common fish species (Oreochromis niloticus and C. kelberi). In the spring and summer, the most consumed item was O. niloticus. However, cannibalism was very common for this species. The high frequencies of O. niloticus and C. kelberi reveal that this species is adapted to a seasonal cycle, feeding on the most common prey in each period of the year, with a reduction of foraging activity during the winter. The diets were different among the immature and mature individuals suggesting that there are ontogenetic differences, mainly related to prey type, such as: Ephemeroptera consumed by the immature peacock bass and fish by the mature ones, besides the size of the prey.

Heavy Metal Accumulation in the Intestinal Tapeworm Proteocephalus macrophallus Infecting the Butterfly Peacock Bass (Cichla ocellaris), from Southeastern Brazil

2019 ◽  
Vol 103 (5) ◽  
pp. 670-675
Author(s):  
Lucas A. R. Leite ◽  
Felipe F. Januário ◽  
Pedro M. Padilha ◽  
Emmyle T. C. do Livramento ◽  
Rodney K. de Azevedo ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Accumulation ◽  
Heavy Metal Accumulation ◽  
Southeastern Brazil ◽  
Peacock Bass ◽  
Cichla Ocellaris

scholarly journals Size-related and seasonal changes in the diet of the non-native Cichla kelberi Kullander & Ferreira, 2006 in a lowland reservoir in the southeastern Brazil

2018 ◽  
Vol 18 (3) ◽  
Author(s):  
Helaine Silva Mendonça ◽  
Alexandre Clistenes Alcântara Santos ◽  
Mariana Marques Martins ◽  
Francisco Gerson Araújo
Keyword(s):  
Seasonal Changes ◽  
Diet Composition ◽  
Niche Breadth ◽  
Late Spring ◽  
Southeastern Brazil ◽  
Tropical Lowland ◽  
Lowland Reservoir ◽  
Peacock Bass ◽  
Significant Size ◽  
Available Resources

Abstract: We examined size-related and seasonal changes in the diet of the peacock bass Cichla kelberi in a tropical lowland reservoir in southeastern Brazil over three hydro-climatic seasons: summer (high rainfall and temperature), winter (low rainfall and temperature), and late spring (increasing rainfall and temperature) during two years (2006-2007). The tested hypothesis is that this non-native predator fish changes diet during the subadult and adult phases and among seasons to adapt in new colonized environment. Fishes of the families Clupeidae (Platanichthys platana), Characidae (Astyanax spp.) and Cichlidae (Cichla kelberi) were the most important food items, followed by insects of the order Odonata. Cannibalism was also recorded for the largest individuals. A significant size-related change in diet was found with the smallest individuals (Total Length, TL < 20 cm) preying mainly on fishes, whereas the larger individuals (TL > 30 cm) preyed mainly on Odonata. The niche breadth increased during growth, with the largest individuals having a diet more evenly distributed among the available resources. No significant seasonal differences in diet composition were found, but stomachs with higher degree of volume occupied by food were more frequent in late spring than in summer. Conversely, the highest niche breadth was found during the summer compared to the other seasons. Together, these observations suggest an efficient use of the available resources by this top predator in this new colonized system.

Modeling cetacean habitat use in an urban coastal area in southeastern Brazil

2020 ◽  
Vol 642 ◽  
pp. 227-240
Author(s):  
L Lodi ◽  
R Tardin ◽  
G Maricato
Keyword(s):  
Habitat Use ◽  
Protected Areas ◽  
Linear Models ◽  
Anthropogenic Activities ◽  
Buffer Zone ◽  
Humpback Whales ◽  
Southeastern Brazil ◽  
Major Influence ◽  
Cetacean Species ◽  
Few Data

Most studies of cetacean habitat use do not consider the influence of anthropogenic activities. We investigated the influence of environmental and anthropogenic variables on habitat use by humpback Megaptera novaeangliae and Bryde’s whales Balaenoptera brydei off the coast of the Brazilian city of Rio de Janeiro. Although there are 2 marine protected areas (MPAs) in this area, few data are available on cetacean habitat use or on the overlap of different cetacean species within these MPAs. Our aim was to evaluate the effectiveness of the MPAs and propose a buffer zone to better protect the biodiversity of the study area. We conducted systematic surveys and developed spatial eigenvector generalized linear models to characterize habitat use by the species in the study area. Habitat use by humpback whales was influenced only by depth, whereas for Bryde’s whales there was the additional influence of anthropogenic variables. For Bryde’s whales, which use the area for feeding, sea surface temperature and the distance to anchorages had a major influence on habitat use. We also showed that neither of the MPAs in the study area adequately protects the hotspots of either whale species. Most of the humpback whale grid cells with high sighting predictions were located within 2 km of the MPAs, while areas of high sighting prediction of Bryde’s whales were located up to 5 km from the MPAs, closer to beaches. Our findings provide important insights for the delimitation of protected areas and zoning of the MPAs.

Abundance Estimates of Guiana Dolphins (Sotalia guianensis; Van Bénéden, 1864) Inhabiting an Estuarine System in Southeastern Brazil

2019 ◽  
Vol 45 (1) ◽  
pp. 56-65 ◽  
Author(s):  
Aline B. de Mello ◽  
Julia M. B. Molina ◽  
Maja Kajin ◽  
Marcos C. de O. Santos
Keyword(s):  
Southeastern Brazil ◽  
Estuarine System ◽  
Sotalia Guianensis ◽  
Abundance Estimates

Dalechampia margarethiae (Euphorbiaceae), a New Species from Southeastern Brazil

2019 ◽  
Vol 44 (4) ◽  
pp. 832-837
Author(s):  
Rafaela Alves Pereira-Silva ◽  
Sarah Maria Athiê-Souza ◽  
André Laurênio de Melo ◽  
W. Scott Armbruster
Keyword(s):  
New Species ◽  
Southeastern Brazil ◽  
Espírito Santo ◽  
Floral Resin ◽  
Espirito Santo ◽  
A New Species

Abstract—A new species of Dalechampia from southeastern Brazil, belonging to Dalechampia sect. Dioscoreifoliae, is described and illustrated here. Dalechampia margarethiae is a twining vine occurring exclusively in Espírito Santo state. Its pseudanthia are similar to those of D. peckoltiana and D. pentaphylla, but D. margarethiae differs in a set of important characters, including having cylindrical, down-curved style tips, staminate flowers at anthesis having unreflexed sepals with stamens born on unelongated columns, whitish floral resin, and simple, entire, cordate leaves.

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