Banca de QUALIFICAÇÃO: MÁRCIO JOAQUIM DA SILVA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : MÁRCIO JOAQUIM DA SILVA
DATA : 14/10/2016
HORA: 09:00
LOCAL: Sala de reuniões do Centro de Biociências
TÍTULO:

Patterns of Freshwater Fish Species Richness in Drainages of the São Francisco River Interbasin Water Transfer Project, Brazilian Semiarid: a Baseline for Detecting Changes Caused by ongoing Artificial Connections

PALAVRAS-CHAVES:

Mid-Northeastern Caatinga Ecoregion; anthropogenic impacts; Neotropical fishes; temporary rivers; biological invasions.

PÁGINAS: 10
RESUMO:

Global aquatic ecosystems have been losing part of their biodiversity in response to increasing deleterious anthropogenic impacts. Besides, comprehensive studies to fill the knowledge gaps are lacking. For Neotropical ichthyology, one of this gaps is the Mid-Northeastern Caatinga Ecoregion (MNCE) whose drainages are receptors of the greatest interbasin water transfer project ever made in Brazil (São Francisco River Interbasin Water Transfer Project - SFR-IBWT; PISF, in Portuguese). Hereby, we provide a current diagnosis of freshwater fish species richness of basins encompassed
by SFR-IBWT. Species richness, shared species, the number of endemic, threatened and non-native species were obtained using primary and secondary data from 308 localities. A total of 120 species were recorded (in 25 families and seven orders), 110 of which are native (61 in MNCE and 77 in São Francisco River Ecoregion - SFRE). Sixteen species (14.54%) were recorded in all evaluated basins. Higher endemism values were recorded in SFRE (21), MNCE (14), and in Jaguaribe River basin (JAG) (4). The number of species shared by SFRE and the four MNCE receptor basins was 28 (25.45%) the highest and lowest values of shares between SFRE and receptor basins were: SFRE x JAG (24, 23.30%), and versus Apodi River basin (APO) (20, 22.47%), respectively. When compared amongst each other, the receptor basins showed noticeably higher shares [highest, Piranhas-Açu (PIA) x JAG = 35, 64.81%, and lowest, APO x Paraíba do Norte (PAR) 20, 42.55%]. JAG contains 81.97% of recorded species in receptor basins, and presents the higher richness and endemism values in relation to the others affected by SFR-IBWT. We hope that this baseline, might help in the temporal monitoring and detection of possible future ichthyofaunal modifications. We also encourage participative involvement of researchers, environmental agencies, entrepreneurs, and civil society to provide management and effective conservation decisions for the preservation of the semiarid Caatinga fishes.

MEMBROS DA BANCA:
Interno - 1879211 - BRUNO CAVALCANTE BELLINI
Interno - 1545394 - FULVIO AURELIO DE MORAIS FREIRE
Presidente - 1865104 - SERGIO MAIA QUEIROZ LIMA