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.

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).

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.

Record of two calanoid species, Arctodiaptomus laticeps (Sars, 1863) (Diaptomidae) and Eurytemora velox (Lilljeborg, 1853) (Temoridae), in the fauna of Croatia

Crustaceana ◽  
2018 ◽  
Vol 91 (4) ◽  
pp. 451-461
Author(s):  
Anita G. Balkić ◽  
Ivančica Ternjej ◽  
Igor Stanković
Keyword(s):  
River Basin ◽  
Environmental Parameters ◽  
First Record ◽  
Danube River ◽  
Individual Species ◽  
The Danube River ◽  
The Individual ◽  
Floodplain Area ◽  
Danube River Basin

Two calanoid species,Arctodiaptomus laticeps(Sars, 1863) andEurytemora velox(Lilljeborg, 1853), are reported from the Danube River basin in Croatia. Our findings present the first record ofA. laticepsandE. veloxat the territory of Croatia. Both species were found in the lowland floodplain area during the spring-summer inundation throughout the years. Their occurrence in the waterbodies studied has not overlapped, and different environmental parameters characterized the periods of occurrence of the individual species. The existence ofE. veloxin this region seems to be permanent, whereas the appearance ofA. laticepsis rather confounding.

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 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.

First record of the natural occurrence of pentaploid loach, Misgurnus anguillicaudatus in Hubei Province, China

2013 ◽  
Vol 62 (1) ◽  
pp. 14-18 ◽  
Author(s):  
Lei Cui ◽  
Khalid Abbas ◽  
Yongyao Yu ◽  
Weimin Wang ◽  
Li Zhou ◽  
...  
Keyword(s):  
First Record ◽  
Hubei Province ◽  
Natural Occurrence ◽  
Misgurnus Anguillicaudatus

Detecting predation of a burrow-nesting seabird by two introduced predators, using stable isotopes, dietary analysis and experimental removals

2007 ◽  
Vol 34 (6) ◽  
pp. 443 ◽  
Author(s):  
Grant A. Harper
Keyword(s):  
Rattus Rattus ◽  
Isotopic Analysis ◽  
Diet Analysis ◽  
Passerine Birds ◽  
Dietary Analysis ◽  
Stable Isotopic Analysis ◽  
Introduced Predators ◽  
Ship Rat ◽  
Stable Isotopic ◽  
Burrowing Seabirds

Burrowing seabirds are vulnerable to extirpation by introduced predators such as rats, but much evidence of predation is circumstantial. On Taukihepa, an island off southern New Zealand, two possible predators exist with sooty shearwaters (Puffinus griseus): the weka (Gallirallus australis), a large rail, and the ship rat (Rattus rattus), both introduced to the island. It was expected that chick predation would be principally by weka, the much larger of the two predators. To measure losses of sooty shearwater chicks to weka or rats, nests were monitored with burrow-scopes at six sites in the summers of 2003–04 and 2004–05. In three of the sites rats were removed on 4-ha grids by trapping. In the other three sites rats were not trapped. In addition, weka were removed from all six sites in 2005. Concurrent diet analysis of weka and rat stomachs was undertaken as well as stable isotopic analysis (δ13C, δ15N) of samples from rats and weka. These were compared with possible prey items including sooty shearwaters. Additional stable isotope samples were taken from Pacific rats (Rattus exulans), a small rat species present with weka and sooty shearwaters on nearby Moginui Island. Weka diet comprised ~40% of bird remains by volume and calculations using Isosource, an isotopic source portioning model, estimated sooty shearwaters contributed 59% (range: 15–71%) of weka diet during the sooty shearwater chick-raising period. Ship rats, in contrast, had very depleted δ13C isotope signatures compared with sooty shearwaters and bird remains contributed <9% of diet by volume, with Isosource calculations suggesting that ship rats consumed more passerine birds (mean: 30%; range 5–51%) than sooty shearwaters (mean 24%; range: 0–44%). In both summers, more chicks were lost on sites from which rats had been removed than on control sites. When weka were removed in 2005, fewer chicks were lost than in 2004 and significantly fewer weka-killed chicks were found on weka-removal sites than on non-removal sites. Weka were the principal predator of sooty shearwater chicks, depredating an estimated 9.9% of nests. Combining several techniques quantified the loss and identified the principal predator of a seabird in decline.

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

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.

scholarly journals Anuran larvae diet from agroecosystem’s ponds: environmental quality and implications for their populations

2016 ◽  
Author(s):  
Selene Babini ◽  
Luciana Cibils Martina ◽  
Elisa Luque ◽  
Noemi Gari ◽  
Nancy Salas ◽  
...  
Keyword(s):  
Environmental Quality ◽  
Native Species ◽  
Morphometric Parameters ◽  
Diet Analysis ◽  
Temporary Ponds ◽  
Nitzschia Palea ◽  
Composition And Structure ◽  
Structural Variables ◽  
Algal Abundance

<p>Agriculture is considered an important factor for the decline of amphibians recorded in the last decades. Intensive agriculture requires the application of great amounts of pesticides and fertilizers, consequently many aquatic habitats have been altered. The over-enrichment of waters with nutrients from agriculture causes growth of algae and cyanobacteria and the shift of the community composition toward the dominance of tolerant taxa. The aim of this study was to analyze the diet of tadpoles and the size of larvae and metamorphs of the native species <em>Rhinella arenarum </em>in agroecosystems of central Argentina. Four sampling sites with different degree of human disturbance were selected, three temporary ponds from agroecosystems (A1, A2, A3), and a pond in a semi-modified landscape, not affected by agriculture or cattle. The sites were visited once a week from October 2013 to January 2014. Tadpoles and metamorphs were captured, anesthetize and preserved. Morphometric parameters were measured on tadpoles and metamorphs and for 20 tadpoles the complete intestine was removed and their contents analyzed. Phosphate values were higher in agroecosystem ponds. Body size and mass of tadpoles and metamorphs were different between sites, being smaller in agricultural ponds. Diet analysis revealed that all larvae mainly consumed microalgae. Larval diets allowed differentiating the sites, larvae from A1 and A3 sites showed a diet with a similar composition and structure (with a predominance of <em>Nitzschia palea</em>), meanwhile larvae from A2 and SM showed different diets. In SM, the larvae mainly consumed <em>Trachelomonas </em>sp. Analysis of structural variables revealed a higher algal abundance in the diet of larvae from A3, a lower richness in SM and that there were no differences between sites in diversity and evenness of diets. Our hypothesis was support in part, given that resistant algae taxa were found in agroecosystem ponds and tadpoles and metamorphs were smaller, but larval diets showed higher abundance and richness. The analysis of the diet of aquatic stages of <em>R. arenarum</em> allowed us to know the trophic availability and environmental quality of temporary ponds from agroecosystems. </p>

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