Terra firme stream fish from Rio Machado Basin, RO

• Grant number: 10/17494-8
• Support Opportunities: Regular Research Grants
• Start date: April 01, 2011
• End date: March 31, 2014
• Field of knowledge: Biological Sciences - Zoology - Applied Zoology
• Principal Investigator: Lilian Casatti
• Grantee: Lilian Casatti
• Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil
• Associated researchers: Francisco Langeani Neto

Abstract

Streams are considered special environments because they harbor species of small fish that generally correspond to approximately 50% of all described freshwater fish species of South America, showing high degree of endemism. This project was designed in order to fill gaps in knowledge of the fish fauna of rio Machado basin, Rondônia state, an important Amazon river basin prone to exhibit high diversity and endemism, but also exposed to various activities that cause changes to their habitats. Four goals were established: a) determine the taxonomic composition and percentage contribution of each taxon to the total number of individuals and biomass of collected fish, b) assess the feeding biology of fishes, c) build a database of environmental information of each segment; d) develop identification keys to the fish fauna, e) organize voucher collections. Six of 13 sub-basins that make up the rio Machado (80,600 km2) drainage will be randomly selected; in each one from six to ten stream reaches will be chosen in order to include from 50 to 60 stream stretches. The selection of sample stretches - with 80 m in length - will be made in order to obtain segments with comparable volume and physical structure. The collection effort will be standardized and evaluated by richness estimators, the feeding biology will be investigated by techniques for study of gastric contents, and information on the spatial distribution of microhabitats will be obtained through naturalistic observations, conditioned to adequate underwater visibility conditions. (AU)

Scientific publications

(7)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PEREZ-MAYORGA, MARIA ANGELICA; CASATTI, LILIAN; TERESA, FABRICIO BARRETO; BREJAO, GABRIEL LOURENCO. Shared or distinct responses between intermediate and satellite stream fish species in an altered Amazonian River?. ENVIRONMENTAL BIOLOGY OF FISHES, v. 100, n. 12, p. 1527-1541, DEC 2017. (15/05827-6, 12/21916-0, 10/17494-8)

TERESA, FABRICIO BARRETO; CASATTI, LILIAN. Trait-based metrics as bioindicators: Responses of stream fish assemblages to a gradient of environmental degradation. ECOLOGICAL INDICATORS, v. 75, p. 249-258, APR 2017. (10/17494-8, 01/13340-7)

BREJAO, GABRIEL L.; HOEINGHAUS, DAVID J.; ROA-FUENTES, CAMILO A.; PEREZ-MAYORGA, MARIA ANGELICA; FERRAZ, SILVIO F. B.; CASATTI, LILIAN. Taxonomic and functional turnover of Amazonian stream fish assemblages is determined by deforestation history and environmental variables at multiple scales. Neotropical Ichthyology, v. 19, n. 3, 2021. (10/17494-8, 12/21916-0, 09/12318-0, 18/11954-9, 15/05827-6)

ZENI, JAQUELINI O.; HOEINGHAUS, DAVID J.; ROA-FUENTES, CAMILO A.; CASATTI, LILIAN. Stochastic species loss and dispersal limitation drive patterns of spatial and temporal beta diversity of fish assemblages in tropical agroecosystem streams. Hydrobiologia, v. 847, n. 18, p. 15-pg., 2020-07-30. (10/17494-8, 15/04366-5, 12/20280-5, 16/01535-3, 01/13340-7, 18/06033-1, 12/05983-0)

ZENI, JAQUELINI O.; HOEINGHAUS, DAVID J.; ROA-FUENTES, CAMILO A.; CASATTI, LILIAN. Stochastic species loss and dispersal limitation drive patterns of spatial and temporal beta diversity of fish assemblages in tropical agroecosystem streams. Hydrobiologia, v. 847, n. 18, SI, JUL 2020. (01/13340-7, 10/17494-8, 15/04366-5, 18/06033-1, 16/01535-3, 12/05983-0, 12/20280-5)

BORDIGNON, CAROLINA RODRIGUES; CASATTI, LILIAN; PEREZ-MAYORGA, MARIA ANGELICA; TERESA, FABRICIO BARRETO; BREJAO, GABRIEL LOURENCO. Fish complementarity is associated to forests in Amazonian streams. Neotropical Ichthyology, v. 13, n. 3, p. 579-590, JUL-SEP 2015. (10/17494-8)

BREJAO, GABRIEL L.; HOEINGHAUS, DAVID J.; PEREZ-MAYORGA, MARIA ANGELICA; FERRAZ, SILVIO F. B.; CASATTI, LILIAN. Threshold responses of Amazonian stream fishes to timing and extent of deforestation. Conservation Biology, v. 32, n. 4, p. 860-871, AUG 2018. (10/17494-8, 12/21916-0, 15/05827-6, 09/12318-0)