scholarly journals First record of microplastics in two freshwater fish species (Iheringhthys labrosus and Astyanax lacustris) from the middle section of the Uruguay River, Brazil

2020 ◽  
Vol 32 ◽  
Author(s):  
Tacieli dos Santos ◽  
Rodrigo Bastian ◽  
Juliana Felden ◽  
Adelita Maria Rauber ◽  
David Augusto Reynalte-Tataje ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Freshwater Fish ◽  
Fish Species ◽  
First Record ◽  
Blue Staining ◽  
Middle Section ◽  
Future Studies ◽  
Synthetic Materials ◽  
Iheringichthys Labrosus ◽  
Uruguay River

Abstract Aim The aim was to analyze the incidence of microplastics in the diet of fish in the middle Uruguay River. Methods The present work analyzed the gastrointestinal content of two species: Astyanax lacustris and Iheringichthys labrosus. Results This study provides the first evidence of synthetic materials, such as fibres and plastics in the gastrointestinal tract of fish species in the Middle Uruguay River basin. A sample of sixty-one A. lacustris and twenty-nine I. labrosus were examined to highlight the ingestion of microplastics in the middle section of the Uruguay River in Brazil. In the A. lacustris, eleven fibres and two fragments were found in their gastrointestinal contents, corresponding to 18.1% of the specimens, while in the I. labrosus, twelve fibres and one fragment were found, corresponding to 34.5% of the specimens analyzed. Blue staining was also prevalent in the occurrence of microplastics. Conclusions These data are the first record of microplastics in this zone and represent a baseline for this contamination for future studies.

scholarly journals New records of freshwater fish for Uruguay

Check List ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 191 ◽  
Author(s):  
Matías Zarucki ◽  
Iván González-Bergonzoni ◽  
Franco Teixeira-de-Mello ◽  
Alejandro Duarte ◽  
Sebastián Serra ◽  
...  
Keyword(s):  
Freshwater Fish ◽  
River Basin ◽  
Fish Species ◽  
Current Distribution ◽  
New Records ◽  
Paraná River ◽  
First Report ◽  
Freshwater Fish Species ◽  
Parana River ◽  
Uruguay River

Based on National Collections records, this article presents the first report of eight freshwater fish species for Uruguay in the middle and lower Uruguay River basin, extending their current distribution: Cyanocharax alegretensis Malabarba and Weitzman, 2003; Leporinus lacustris Amaral Campos, 1945; Microglanis aff. eurystoma Malabarba and Mahler, 1998; Tatia boemia Koch and Reis, 1996; Lepthoplosternum pectorale (Boulenger, 1895); Crenicichla missioneira Lucena and Kullander, 1992; C. minuano Lucena and Kullander, 1992; Apistogramma borellii Regan, 1906. These species were previously recorded either for upper Uruguay River or Paraná River.

scholarly journals First record of the highfin goby Gobionellus oceanicus (Gobiiformes: Gobiidae) in Costa Rican freshwaters

2018 ◽  
Vol 10 (2) ◽  
pp. 404-408
Author(s):  
Francisco S. Álvarez ◽  
Derick Herrerea ◽  
Arturo Angulo
Keyword(s):  
Costa Rica ◽  
Freshwater Fish ◽  
River Basin ◽  
Fish Species ◽  
New Record ◽  
First Record ◽  
Costa Rican ◽  
Freshwater Fish Species ◽  
First Time

The highfin goby Gobionelus oceanicus is herein reported for the first time in freshwaters of Costa Rica. One specimen was collected in the lower Pacuare River basin, Atlantic slope, Costa Rica. This new record brings the total number of Costa Rican native freshwater fish species to 253.

scholarly journals Forecasting the future establishment of invasive alien freshwater fish species

2021 ◽  
Author(s):  
Sam Wenaas Perrin ◽  
Kim Magnus Bærum ◽  
Ingeborg Palm Helland ◽  
Anders Gravbrøt Finstad
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
Freshwater Fish Species ◽  
The Future

scholarly journals Probiotics for cultured freshwater fish

2020 ◽  
Vol 41 (2) ◽  
pp. 105
Author(s):  
Javier Fernando Melo-Bolívar ◽  
Ruth Yolanda Ruiz-Pardo ◽  
Michael E Hume ◽  
Hanna E Sidjabat ◽  
Luisa Marcela Villamil-Diaz
Keyword(s):  
Water Quality ◽  
Gastrointestinal Tract ◽  
Stress Tolerance ◽  
Freshwater Fish ◽  
Filamentous Fungi ◽  
Growth Promotion ◽  
Freshwater Fishes ◽  
Fish Feed ◽  
Probiotic Strains ◽  
Commercial Applications

Probiotic products are viewed as an alternative to the use of antibiotics in freshwater fishes farming. Probiotic organisms include bacteria, yeast, and filamentous fungi offering different benefits to fish including growth promotion, inhibition of pathogen colonisation, and improvement of nutrient digestion, water quality, and stress tolerance, as well as enhancement of reproduction. For these reasons, this review aims to identify the main trends in probiotic amendment in freshwater fishes. Strategies to incorporate the probiotic strains in the fish feed or pellets to allow optimal viability of the strains as they reach the fish gastrointestinal tract (GIT) are crucial in probiotic research and commercial applications for freshwater fish.

Major threats to European freshwater fish species

2021 ◽  
pp. 149105
Author(s):  
Maria João Costa ◽  
Gonçalo Duarte ◽  
Pedro Segurado ◽  
Paulo Branco
Keyword(s):  
Freshwater Fish ◽  
Fish Species ◽  
Freshwater Fish Species
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