ICHTHYOFAUNA OF TRIBUTARY STREAMS OF THE CINZAS RIVER BASIN, PARANAPANEMA RIVER, BRAZIL

Streams are environments that are very affected by human activities such as pollution, deforestation of riparian forests and introduction of exotic species. In this context, it is important to know its biodiversity for monitoring and conservation. The present study inventoried the fish fauna of three tributary streams of the Jacarezinho River (Cinzas River basin, Paranapanema River) with different environmental characteristics: Água dos Anjos, Monjolinho and Ubá streams. Quarterly collections were performed in the period between October 2012 and July 2013 at the headwaters, in the middle and at the mouth of each stream, using electrofishing. We analyzed the parameters of species richness, total abundance, relative abundance, capture constancy, rarefaction curves of Coleman, and richness estimators ACE and ICE. We captured a total of 7102 individuals, distributed in six orders, 12 families and 33 species. The most abundant order was Characiformes (76.15 %), while the most abundant species were: Bryconamericus iheringii (39.5 %), Astyanax bockmanni (19.36 %), and Geophagus brasiliensis (7.52 %). The highest species richness was found in Água dos Anjos stream (26), followed by Monjolinho stream (25), and the Ubá stream (15). We recorded the occurrence of four non-native species (Bryconamericus exodon, Gymnotus inaequilabiatus, Poecilia reticulata and Oreochromis niloticus), which represent a risk to the biodiversity of the studied streams. The Ubá stream was considered the most conserved, but the presence of P. reticulata shows that it has also suffered from anthropic impacts. This non-native species is constantly associated to degraded environments, mainly when it occurs in high abundance. Our results suggest that the fish assemblages studied present different structures, probably due to the interaction among historical, abiotic, biotic, and anthropic factors. This study has been carried out for the first time in the Cinzas River basin and can help provide theoretical input for the elaboration of monitoring and conservation plans.

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Knowing biodiversity: Fishes from the Guareí River basin, a tributary of the Jurumirim reservoir, Paranapanema River, Brazil

Biota Neotropica ◽

10.1590/1676-0611-bn-2020-1031 ◽

2020 ◽

Vol 20 (3) ◽

Author(s):

Valter M. Azevedo-Santos ◽

Fernando M. Pelicice ◽

Raoul Henry

Keyword(s):

River Basin ◽

Native Species ◽

Poecilia Reticulata ◽

Fish Fauna ◽

Fish Diversity ◽

Conservation Actions ◽

Almost All ◽

Adequate Management ◽

Management And Conservation ◽

Pimelodus Maculatus

Abstract: The Guareí River is a tributary of the Paranapanema River (Brazil), located in the upper portion of the Jurumirim Reservoir. Fish fauna studies in this watershed began in the 2000s, but they were restricted to a few waterbodies. This work conducted a broad survey of the fish fauna in tributary streams and the main channel of the Guareí River. Sampling occurred between February 2017 and November 2018 at 36 sites and using different collection methods. We captured 2,169 specimens belonging to 50 species, 16 families and 6 orders. The species accumulation curve tended to stabilize but indicated that species richness is underestimated. Almost all species are native (46); only three were non-native (Hyphessobrycon eques, Oreochromis niloticus and Poecilia reticulata) and one was undefined (Gymnotus pantanal). Among the native species, two are unknown to science (Bryconamericus aff. iheringii and Hypostomus sp. n.) and three are migratory (Leporinus friderici, Megaleporinus obtusidens and Pimelodus maculatus). In this paper, we provide images of species collected. Results indicate that the Guareí River basin is a hotspot of fish diversity in the Upper Paranapanema River, stressing the need for adequate management and conservation actions.

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Fish fauna in forested and rural streams from an ecoregion of high endemism, lower Iguaçu River basin, Brazil

Biota Neotropica ◽

10.1590/1676-0611-bn-2017-0459 ◽

2018 ◽

Vol 18 (3) ◽

Cited By ~ 10

Author(s):

Rosilene Luciana Delariva ◽

Mayara Pereira Neves ◽

Crislei Larentis ◽

Bruna Caroline Kotz Kliemann ◽

Mara Cristina Baldasso ◽

...

Keyword(s):

Species Richness ◽

River Basin ◽

Rural Areas ◽

Native Species ◽

Fish Fauna ◽

Land Uses ◽

Conservation Units ◽

Forested Areas ◽

Total Species ◽

Iguaçu River

Abstract The fish fauna of eight streams with different land uses of their watersheds (forested and rural areas) in the lower Iguaçu River basin was inventoried, in order to evaluate the composition and species richness. The fishes were sampled quarterly from May 2015 to February 2016, using the electrofishing technique. In total, 4,239 individuals were captured, belonging to six orders, 11 families and 26 species. The orders Siluriformes and Characiformes, and the families Characidae and Trichomycteridae were the most specious. Of the total species sampled, 65% were endemic to the Iguaçu River basin, four are not described and four are non-native. As expected to the Iguaçu River basin, the inventoried fauna revealed low richness and high endemism, however was highly nested within the species composition reported for main channel of Iguaçu River and their larger tributaries. The species recorded here corresponded to a subset of 24.5% of the 106 species documented for the basin. The streams presented different faunas, with only two species (Astyanax bifasciatus and Trichomycterus stawiarski) common to both forested and rural streams. In addition, higher species richness was recorded in streams inserted in conservation units. The presence of non-native species was more frequent in rural streams. These results highlight the importance of the preservation of forested areas in the watersheds of lower Iguaçu, which presents a peculiar fish fauna, along with several threats to biodiversity such as habitat loss by intensive agriculture use.

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Ichthyofauna of streams of the Lower Paranapanema River basin, state of Paraná, Brazil

Check List ◽

10.15560/11.5.1756 ◽

2015 ◽

Vol 11 (5) ◽

pp. 1756 ◽

Cited By ~ 5

Author(s):

Ana Paula Vidotto-Magnoni ◽

Diego Azevedo Zoccal Garcia ◽

Alexandro Derly Augusto Costa ◽

Jaqueline Garcia de Souza ◽

Marcelo Hideki Shigaki Yabu ◽

...

Keyword(s):

Species Richness ◽

River Basin ◽

Native Species ◽

Current Knowledge ◽

Fish Fauna ◽

Parana River ◽

Small Watersheds ◽

Upper Paraná River ◽

Upper Paraná River Basin ◽

Collection Sites

Several studies of small watersheds of in the Upper Paraná River basin are currently available. Howev-er, the number and extent of its tributary streams still pose a challenge to enhancing current knowledge of their ichthyofauna. This study aimed to survey the fish fauna of three streams of the Lower Paranapanema River basin, state of Paraná, Brazil (Capim, Tenente and Centenário streams). The sampling included 3,167 specimens belonging to five orders, 17 families and 56 species. The streams presented differences in species richness (Centenário Stream: 41 species; Tenente Stream: 33 species; Capim Stream: 30 species). Two species occurred at all collection sites (Astyanax bockmanni and Hypostomus ancistroides). Nine non-native species were recorded, four of them found exclusive-ly in the Centenário Stream.

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Fish fauna in low-order streams of the Piquiri River, Upper Paraná River basin, Brazil

Biota Neotropica ◽

10.1590/1676-0611-bn-2021-1217 ◽

2021 ◽

Vol 21 (4) ◽

Author(s):

Mariele P. Camargo ◽

Sandra C. Forneck ◽

Fabrício M. Dutra ◽

Leonardo B. Ribas ◽

Almir M. Cunico

Keyword(s):

South America ◽

River Basin ◽

Native Species ◽

Fish Fauna ◽

Neotropical Streams ◽

The World ◽

Upper Paraná River ◽

Upper Paraná River Basin ◽

Electric Fishing ◽

Low Order

Abstract The South America ichthyofauna encompasses the highest diversity of the world, however is highly threatened by anthropogenic actions. The fish fauna of nine low-order streams, tributaries of the Piquiri River and impacted by aquaculture, agriculture and urbanization were sampled in the present study. Samplings were done quarterly from December 2017 to September 2018 at three sites in each stream, using a portable electric fishing device in 50-meter segments. A total of 14,507 individuals were collected, belonging to six orders, 20 families, 46 genera, and 70 species. The highest richness and abundance were found for the orders Characiformes and Siluriformes. In this study, nine species that had not been recorded were found, totaling 163 for the basin. In addition, 14 non-native species were captured. The presented list of species contributes to the existing database of ichthyofauna distribution in Neotropical streams, denoting that it is underestimated in the region, mainly in low-order tributaries. The present study reinforces the importance of inventories and monitoring in environments with high biodiversity and sensitive to anthropogenic actions.

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Historical Changes in Large River Fish Assemblages of the Americas

Historical Changes in Large River Fish Assemblages of the Americas ◽

10.47886/9781888569728.ch7 ◽

2005 ◽

Keyword(s):

Native Species ◽

Fish Assemblages ◽

Fish Fauna ◽

River System ◽

Endangered Species Act ◽

Large River ◽

Main Stem ◽

Lake Mead ◽

Virgin River ◽

Native Fishes

Abstract.—The Virgin–Moapa River system supports nine native fish species or subspecies, of which five are endemic. Woundfin Plagopterus argentissimus and Virgin River chub Gila seminuda are endemic to the main-stem Virgin River, whereas cooler and clearer tributaries are home to the Virgin spinedace Lepidomeda mollispinis. Moapa dace Moapa coriacea and Moapa White River springfish Crenichthys baileyi moapae are found in thermal springs that form the Moapa River, and Moapa speckled dace Rhinichthys osculus moapae is generally found below the springs in cooler waters. The agricultural heritage of the Virgin–Moapa River system resulted in numerous diversions that increased as municipal demands rose in recent years. In the early 1900s, trout were introduced into some of the cooler tributary streams, adversely affecting Virgin spinedace and other native species. The creation of Lake Mead in 1935 inundated the lower 80 km of the Virgin River and the lower 8 km of the Moapa River. Shortly thereafter, nonnative fishes invaded upstream from Lake Mead, and these species have continued to proliferate. Growing communities continue to compete for Virgin River water. These anthropogenic changes have reduced distribution and abundance of the native Virgin–Moapa River system fish fauna. The woundfin, Virgin River chub, and Moapa dace are listed as endangered, and the Virgin spinedace has been proposed for listing. In this paper we document how the abundance of these species has declined since the Endangered Species Act of 1973. Currently, there is no strong main-stem refugium for the Virgin River native fishes, tributary refugia continue to be shortened, and the Moapa River native fishes continue to be jeopardized. Recovery efforts for the listed and other native fishes, especially in the Virgin River, have monitored the declines, but have not implemented recovery actions effective in reversing them.

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Historical Changes in Large River Fish Assemblages of the Americas

Historical Changes in Large River Fish Assemblages of the Americas ◽

10.47886/9781888569728.ch14 ◽

2005 ◽

Keyword(s):

Native Species ◽

Fish Assemblages ◽

Fish Fauna ◽

Large River ◽

Platte River ◽

Water Diversions ◽

The North ◽

As Species ◽

South Platte ◽

The City

Abstract.—From its headwaters in the Rocky Mountains, the Platte River drains 230,362 km2 in Colorado, Wyoming, and Nebraska. The Platte River is formed by the confluence of the North Platte and South Platte near the city of North Platte, Nebraska, and receives additional flow from the Loup and Elkhorn rivers that drain the Sand Hills region of Nebraska. Water diversions for mining and irrigation began in the 1840s in Colorado and Wyoming, and irrigation diversions in Nebraska began in the 1850s. Construction of dams for control of river flows commenced on the North Platte River in Wyoming in 1904. Additional dams and diversions in the North Platte, South Platte, and Platte rivers have extensively modified natural flow patterns and caused interruptions of flows. Pollution, from mining, industrial, municipal, and agricultural sources, and introductions of 24 nonnative species have also taken their toll. Fishes of the basin were little studied before changes in land use, pollution, and introduction of exotic species began. The current fish fauna totals approximately 100 species from 20 families. Native species richness declines westward, but some species find refugia in western headwaters streams. Declines in 26 native species has led to their being listing as species of concern by one or more basin states.

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Analysis of fish assemblages in sectors along a salinity gradient based on species, families and functional groups

Brazilian Journal of Oceanography ◽

10.1590/s1679-87592013000400006 ◽

2013 ◽

Vol 61 (4) ◽

pp. 251-264 ◽

Cited By ~ 17

Author(s):

Ana Carolina dos Passos ◽

Riguel Feltrin Contente ◽

Felippe Veneziani Abbatepaulo ◽

Henry Louis Spach ◽

Ciro Colodetti Vilar ◽

...

Keyword(s):

Functional Groups ◽

Fish Assemblages ◽

Salinity Gradient ◽

Fish Fauna ◽

Abundant Species ◽

Number Of Species ◽

Salinity Gradients ◽

Gradient Based ◽

Subtropical Estuaries ◽

East West

Here we test the effects of the east-west salinity gradient in the subtropical Paranaguá Bay Estuarine Complex (PEC) on the structure of shallow water fish fauna, determined according to taxonomic (families and species) and functional composition metrics. A total of 152 species were observed. The families with the largest number of species were the Sciaenidae, Carangidae, Haemulidae and Gobiidae. The most abundant species were Atherinella brasiliensis, Harengula clupeola, Anchoa januaria and Anchoa tricolor. Marine stragglers dominated in number of species, followed by marine migrants and estuarine species. Most species were zoobenthivores, followed by piscivores and zooplanktivores. Families and species more frequently associated with estuarine conditions dominated in the mesohaline sector, and those more frequently associated with marine conditions dominated in the euhaline sector. The fish assemblages along the estuarine salinity gradient were found to be better characterized by taxonomic metrics than by functional ones. This is most likely because individuals of all functional groups inhabit all salinity sectors, and thus these metrics are not useful for differentiating assemblages along salinity gradients. Our results differ from those of other studies in tropical and subtropical estuaries, which have emphasized the importance of functional groups in determining fish assemblages along salinity gradients.

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Fish assemblages in a coastal bay adjacent to a network of marine protected areas in southern Brazil

Brazilian Journal of Oceanography ◽

10.1590/s1679-87592016121306403 ◽

2016 ◽

Vol 64 (3) ◽

pp. 295-308 ◽

Cited By ~ 4

Author(s):

André Pereira Cattani ◽

Fábio Gonçalves Daura Jorge ◽

Gisela Costa Ribeiro ◽

Leonardo Liberali Wedekin ◽

Paulo César de Azevedo Simões Lopes ◽

...

Keyword(s):

Protected Areas ◽

Marine Protected Areas ◽

Fish Assemblage ◽

Fish Assemblages ◽

Fish Fauna ◽

Abundant Species ◽

Environmental Data ◽

Fish Assemblage Structure ◽

Principal Coordinates ◽

Coastal Bay

Abstract Baía Norte (North Bay) in Santa Catarina State is considered a typical coastal bay and is surrounded by a network of Marine Protected Areas. The objectives of this study were to describe the composition of the demersal fish assemblage, identify seasonal and spatial structures on a fine scale and evaluate the role of habitat descriptors and abiotic variables affecting the fish assemblage structure. Seasonal samplings were conducted in 2005, using bottom trawls in six pre-established areas in Baía Norte in summer, fall, winter and spring. Simultaneously with each trawl, environmental data were collected with a multiparameter probe. Temporal and spatial differences in fish abundance were tested by a PERMANOVA. To illustratethe differences detected graphically we ran a canonical analysis of principal coordinates (CAP). The influence of environmental variables on the fish fauna was evaluated using a Distant Based Linear Model (DistLM) with Akaike's information criterion (AIC). A total of 9,888 specimens, distributed in 27 families and 62 species, were collected. Citharichthys spilopterus was the most abundant species. PERMANOVA detected differences for abundance between seasons, areas and interaction among all the factors. The DISTLM selected temperature and pH. The results highlight seasonality as an important factor in the structuring of fish fauna of the study place.

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Inventory of the fish fauna from Ivaí River basin, Paraná State, Brazil

Biota Neotropica ◽

10.1590/1676-0611-bn-2015-0151 ◽

2016 ◽

Vol 16 (3) ◽

Cited By ~ 18

Author(s):

Augusto Frota ◽

Gabriel de Carvalho Deprá ◽

Letícia Machado Petenucci ◽

Weferson Júnio da Graça

Keyword(s):

River Basin ◽

Native Species ◽

Flood Control ◽

Environmental Heterogeneity ◽

Hydroelectric Plant ◽

Extinction Risk ◽

Fish Fauna ◽

Native Fish ◽

Species Introduction ◽

High Species Richness

Abstract We compiled data on fish fauna of the Ivaí River basin from recent specialised literature, standardised sampling and records of species deposited in fish collections. There were 118 fish species of eight orders and 29 families. Of these, 100 species are autochthonous (84.8%), 13, allochthonous (11.0%) and five, exotic (4.2%). The main causes for the occurrence of non-native species are escapes from aquaculture, introduction for fishing purposes and the construction of the Itaipu hydroelectric plant. The predominance of small and medium-sized Characiformes and Siluriformes, including 13 species new to science, accounts for approximately 11.0% of all species and 13.0% of all native species. About 10.2% of all species and 12.0% of all native species are endemic to the upper stretch of the Ivaí River, isolated by numerous waterfalls in tributary rivers and streams. The Ivaí River basin is subjected to various anthropogenic interferences such as pollution, eutrophication, siltation, construction of dams, flood control, fisheries, species introduction and release of fingerlings. These activities raise concerns about biodiversity of Brazilian inland waters especially regarding the fish fauna; the basin of the Ivaí River already has species classified in categories of extinction risk: Brycon nattereri and Apareiodon vladii (Vulnerable) and Characidium heirmostigmata and Steindachneridion scriptum (Endangered). The high species richness of native fish, endemism of some, high environmental heterogeneity, high risk of extinction and lack of knowledge of several other species along with the eminent human activities raise the need to enrich the scientific knowledge for future conservation efforts for the studied basin.

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Diversity of Ophioniformes wasps (Hymenoptera: Ichneumonidae) in a Central-West Brazilian Savanna area

Papéis Avulsos de Zoologia ◽

10.11606/1807-0205/2021.61.45 ◽

2021 ◽

Vol 61 ◽

pp. e20216145

Author(s):

Alvaro Doria dos Santos ◽

Helena Carolina Onody ◽

Carlos Roberto Ferreira Brandão

Keyword(s):

Species Richness ◽

Relative Humidity ◽

Abundant Species ◽

Brazilian Savanna ◽

Mato Grosso ◽

Unknown Species ◽

Taxonomic Studies ◽

First Time ◽

Mato Grosso Do Sul ◽

Malaise Traps

This study aimed to assess the diversity, abundance and seasonal dynamics of Ophioniformes wasps collected throughout a year, as recorded in Malaise traps set at the Reserva Ecológica da Universidade Estadual do Mato Grosso do Sul, a Brazilian Savanna area in Aquidauana city, MS. A total of 621 specimens of Ophioniformes belonging to 11 subfamilies, 30 genera and 106 species were sampled. Despite the impressive number of species found, in a pattern of a few relatively abundant species and many rare ones, our data estimate even higher richness, probably between 125 to 165 species in the studied area. The genera Diadegma, Nonnus, Diradops, Meniscomorpha, Syzeuctus, Ophiopterus and Thyreodon are recorded for the first time in Mato Grosso do Sul State. Among the climatic variables evaluated, mean temperature and relative humidity were positively and significantly correlated with richness and abundance. Our data highlights the huge unknown species richness of these parasitoids in Brazil and the need of taxonomic studies efforts in the future.

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