scholarly journals First record of Pygocentrus piraya (Cuvier 1819) (Characiformes: Serrasalmidae), a new predatory species introduction in the middle and lower Doce River basin

Check List ◽  
2012 ◽  
Vol 8 (4) ◽  
pp. 787
Author(s):  
Frederico Belei ◽  
Wagner Martins Santana Sampaio ◽  
Thiago José Millani ◽  
Alessandro Trazzi ◽  
Jorge Abdala Dergam
Keyword(s):  
River Basin ◽  
Native Species ◽  
Fish Community ◽  
First Record ◽  
Species Introduction ◽  
First Report ◽  
Doce River

This is the first report of the occurrence of P. piraya in the Doce River. The introduction of this species adversely affects the fish community, mainly through competition and predation of native species.

scholarly journals Pleurospermum austriacum (L.) Hoffm. (Apiaceae), a new species in the flora of the Republic of Macedonia

2019 ◽  
Vol 43 (1) ◽  
pp. 113-115
Author(s):  
Aco Teofilovski
Keyword(s):  
New Species ◽  
River Basin ◽  
Native Species ◽  
First Report ◽  
Republic Of Macedonia ◽  
The Republic ◽  
A New Species

Pleurospermum austriacum (Apiaceae) is reported from the Bistrica River basin in the Sar Mountains as a new native species in the flora of the Republic of Macedonia. This is also the first report of the genus Pleurospermum in the country?s flora.

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

2016 ◽  
Vol 16 (3) ◽  
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.

scholarly journals Short communication: First record of Arapaima gigas (Schinz, 1822) (Teleostei: Osteoglossomorpha), in the Brantas River, Sidoarjo, East Java, Indonesia

2019 ◽  
Vol 20 (12) ◽  
Author(s):  
Mohamad Fadjar ◽  
R Adharyan Islamy ◽  
Endang Yuli Herawati
Keyword(s):  
River Basin ◽  
Native Species ◽  
Amazon Basin ◽  
Short Communication ◽  
First Record ◽  
Neotropical Region ◽  
In Situ Observation ◽  
Air Breathing ◽  
Arapaima Gigas ◽  
Live Specimen

Abstract. Fadjar M, Islamy RA, Herawati EY. 2019. Short communication: First record of Arapaima gigas (Schinz, 1822) (Teleostei: Osteoglossomorpha), in the Brantas River, Sidoarjo, East Java, Indonesia. Biodiversitas 20: 3527-3531. The arapaima (= Arapaima gigas) is the largest freshwater fish in the Neotropical region, obligate air-breathing fish that known to reach up to 3 m - 3.90 m in length and 200 kg in weight endemic to the Amazon basin. Arapaima gigas is giant osteoglossomorph and obligate air‐breathing fish and also a native species of the Amazon basin. We present the first record of Arapaima gigas (Schinz, 1822) in Brantas River, Sidoarjo, East Java, Indonesia with diagnostic meristic and morphometrics of the specimens analyzed following Stewart method. Herein, it recorded from the Brantas River basin. This record based on the finding of one live specimen on the tributary of Brantas River basin, and in situ observation of juveniles and adults in the river).

Environmental drivers of fish functional diversity and composition in the Lower Colorado River Basin

2010 ◽  
Vol 67 (11) ◽  
pp. 1791-1807 ◽  
Author(s):  
Thomas K. Pool ◽  
Julian D. Olden ◽  
Joanna B. Whittier ◽  
Craig P. Paukert
Keyword(s):  
Life History ◽  
River Basin ◽  
Functional Diversity ◽  
Native Species ◽  
Fish Community ◽  
Colorado River ◽  
Colorado River Basin ◽  
Environmental Drivers ◽  
Lower Colorado River Basin ◽  
Lower Colorado River

Freshwater conservation efforts require an understanding of how natural and anthropogenic factors shape the present-day biogeography of native and non-native species. This knowledge need is especially acute for imperiled native fishes in the highly modified Lower Colorado River Basin (LCRB), USA. In the present study we employed both a taxonomic and functional approach to explore how natural and human-related environmental drivers shape landscape-scale patterns of fish community composition in the LCRB. Our results showed that hydrologic alteration, watershed land use, and regional climate explained 30.3% and 44.7% of the total variation in fish community taxonomic and functional composition, respectively. Watersheds with greater dam densities and upstream storage capacity supported higher non-native functional diversity, suggesting that dams have provided additional “niche opportunities” for non-native equilibrium life-history strategists by introducing new reservoir habitat and modifying downstream flow and thermal regimes. By contrast, watersheds characterized by greater upstream land protection, lower dam densities, and higher variation in spring and summer precipitation supported fish communities with a strong complement of native species (opportunistic–periodic strategists). In conclusion, our study highlights the utility of a life-history approach to better understand the patterns and processes by which fish communities vary along environmental gradients.

scholarly journals First record of non-native platyfish, Xiphophorus maculatus (Günther, 1866) (Cyprinodontiformes, Poeciliidae), in the Jaguaribe River basin, northeastern Brazil

Check List ◽  
2020 ◽  
Vol 16 (5) ◽  
pp. 1159-1164
Author(s):  
Telton Pedro Anselmo Ramos ◽  
Yuri Gomes Ponce de Carvalho Rocha ◽  
Silvia Yasmin Lustosa Costa ◽  
José Etham de Lucena Barbosa
Keyword(s):  
River Basin ◽  
Native Species ◽  
Biological Diversity ◽  
First Record ◽  
Northeastern Brazil ◽  
Fish Populations ◽  
Native Fish ◽  
Total Length ◽  
Xiphophorus Maculatus

We provide the first record of Xiphophorus maculatus (Günther, 1866) in a river basin in the northeastern Brazil. Specimens were collected in the Jaguaribe River basin, João Pessoa, Paraíba state, Brazil. Two hundred eighty-one specimens, corresponding to 143 males and 138 females of X. maculatus, were collected at nine sites along the basin, from 2017 to 2019. Specimens total length ranged from 17.5 to 26.6 mm in males and from 11.7 to 32.7 mm in females. Introduction of non-native species greatly threatens the biological diversity worldwide. When introduced into a new habitat, X. maculatus usually decreases microcrustacean, macroinvertebrate and native fish populations.

scholarly journals First report of Livoneca guianensis (Isopoda: Cymothoidae) in Leporinus fasciatus (Pisces: Anostomidae) in Brazil

2020 ◽  
Vol 29 (4) ◽  
Author(s):  
Marcos Sidney Brito Oliveira ◽  
Marcos Tavares-Dias
Keyword(s):  
South America ◽  
River Basin ◽  
Geographic Distribution ◽  
Fish Species ◽  
First Record ◽  
Morphometric Data ◽  
First Report

Abstract This study aimed to report the first record of the occurrence of the parasite Livoneca guianensis in Leporinus fasciatus in Brazil. In September 2019, during surveys of the parasites in 12 specimens of L. fasciatus from the lower Jari River basin, in Amapá State, Brazil, one specimen of L. guianensis was found in the tongue of one host. The prevalence of L. guianensis was 8.3%, and it was observed that this parasite has a geographic distribution restricted to South America, parasitizing fish species from Guyana and Brazil. This study contributed to the first report on the occurrence of L. guianensis for L. fasciatus in Brazil. In addition, increased the knowledge on the geographic distribution of this parasite with morphometric data, which are scarce for this Cymothoidae.

scholarly journals Ichthyofauna, Uberabinha River (Upper Paranaíba River Basin), Triangle Mineiro region, Uberlândia, Minas Gerais, Brazil

Check List ◽  
2012 ◽  
Vol 8 (6) ◽  
pp. 1085 ◽  
Author(s):  
Wagner Martins Santana Sampaio ◽  
Frederico Belei ◽  
Patrícia Giongo ◽  
Willian Lopes Silva
Keyword(s):  
Environmental Impacts ◽  
River Basin ◽  
Environmental Degradation ◽  
Fish Community ◽  
First Record ◽  
Minas Gerais ◽  
Hydroelectric Dams ◽  
Human Actions ◽  
Gill Nets

The Uberabinha River is a tributary to the Paranaíba River and, up to now, data about its ichthyofauna was still unknown. Currently the fish community suffers threats due to environmental degradation and the construction of hydroelectric dams. The present study sought to survey the ichthyofauna of the Uberabinha River. Samples were collected in November 2011 and January 2012 using gill nets, cast nets, trawls and sieves. We captured 844 individuals, totaling 36 species of fish. This is the first record of fish from the Uberabinha River and is probably an altered assemblage due to environmental impacts caused by human actions.

scholarly journals LIVE BAIT TRADE AS A PATHWAY FOR THE INTRODUCTION OF NON-NATIVE SPECIES: THE FIRST RECORD OF Dilocarcinus pagei IN THE PARANAPANEMA RIVER BASIN

2021 ◽  
Vol 25 (03) ◽  
pp. 775-785
Author(s):  
Diego Azevedo Zoccal Garcia ◽  
◽  
Armando César Rodrigues Casimiro ◽  
Iago Vinicios Geller ◽  
João Daniel Ferraz ◽  
...  
Keyword(s):  
River Basin ◽  
Native Species ◽  
Propagule Pressure ◽  
First Record ◽  
Paraná River ◽  
Freshwater Species ◽  
Parana River ◽  
Live Bait ◽  
Sport Fish ◽  
Dilocarcinus Pagei

Brazil has one of the most significant diversity of freshwater fish in the world, and this drives trade and fishing tourism. Several species of sport fish have characteristics and behaviors that favor fishing tourism and its related activities. Live baits are widely used in fisheries across the country, and at the end of fisheries, is common that anglers may release the remaining bait in rivers, lakes or reservoirs. Here we report for the first time the crab Dilocarcinus pagei in the Paranapanema River basin, and list the freshwater species that were introduced similarly. During field samplings between 2012/2016, and 2018/2019, we captured 10 individuals of D. pagei. One female in the Rosana Reservoir; and two juveniles, one female and six males in the Taquaruçu Reservoir. The literature review revealed 16 species used as live bait, the crab D. pagei and 15 fish species. Gymnotiformes were the largest number of species used as live bait. The basins that had introduction cases were in the Upper Paraná, Iguaçu, and Paraíba do Sul Rivers. The Paraguay-Lower Paraná River was the system that contributed with nine species to the most invaded ecoregion in Brazil, the Upper Paraná River basin. Anglers and live bait farmers should be aware of the risks and consequences of these constant introduction actions (propagule pressure), not releasing baits. In addition, the live bait trade must be monitored and controlled to occur only with species in their original river basin.

scholarly journals Pisces, Siluriformes, Ictaluridae, Ictalurus punctatus (Rafinesque, 1818): first record in middle Paranapanema river reservoir, aquaculture and exotic species dispersion

Check List ◽  
2010 ◽  
Vol 6 (4) ◽  
pp. 589 ◽  
Author(s):  
Augusto Seawright Zanatta ◽  
Igor Paiva Ramos ◽  
Reinaldo José da Silva ◽  
Francisco Langeani ◽  
Edmir Daniel Carvalhoh
Keyword(s):  
Exotic Species ◽  
River Basin ◽  
Ictalurus Punctatus ◽  
First Record ◽  
First Report ◽  
River Reservoir

This is the first report of Ictalurus punctatus in the middle Paranapanema river basin; the occurrence of this species may be associated with the expansion of pisciculture in cage farms in the Brazilian territory as a whole.

scholarly journals First adult record of Misgurnus anguillicaudatus, Cantor 1842 from Ribeira de Iguape River Basin, Brazil

2012 ◽  
Vol 23 (3) ◽  
pp. 229-232 ◽  
Author(s):  
Caio Isola Dallevo do Amaral Gomes ◽  
Alexandre Peressin ◽  
Mauricio Cetra ◽  
Walter Barrella
Keyword(s):  
River Basin ◽  
Native Species ◽  
First Record ◽  
Diet Analysis ◽  
Maturity Stage ◽  
Misgurnus Anguillicaudatus ◽  
Insect Larvae ◽  
Dietary Analysis ◽  
Gonadal Maturity ◽  
The Individual

AIM: This work aimed to describe a first record of Misgurnus anguilicaudatus, Cantor 1842 in São Paulo state, as well as your potential impacts on native populations. METHODS: The specimen was caught by eletro-fishing device, in Itaguapeva river, Ribeira do Iguape river basin, Ibiuna (SP), Brazil. Later, it was fixed in 10% formalin and taken to laboratory for species identification, morphometric data evaluation, diet analysis and stage of gondal maturity. RESULTS: The individual was an adult female, without parasites and with gonads in maturity stage B, which indicates vascularized ovaries and presence of oocytes in vitellogenesis process. The dietary analysis showed that 95.3% of the stomach was occupied by insect larvae. CONCLUSIONS: The diet analysis may suggest food overlap and consequent competition for food with native species of the genera Trichomycterus e Characidium, which consume essentially the same items. Still, the great morphological similarity with native species, especially Siluriformes, could generate competition for shelters. Additionally, the stage of gonadal maturity and a recorded ability of the species on establish invasive populations in different environments raise concerns about the possibility of Misgurnus anguillicaudatus reproduction on the studied site.

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