Banca de DEFESA: LUIZ FELIPE DE ANDRADE

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : LUIZ FELIPE DE ANDRADE
DATA : 30/10/2019
HORA: 14:00
LOCAL: Sala 34 do ICBS
TÍTULO:

Taxonomy and distribution of the family Phoxocephalidae G. O. Sars, 1891 (Crustacea: Amphipoda) from continental shelf and deep sea of southwestern atlantic

PALAVRAS-CHAVES:

amphipod, taxonomy, South America

PÁGINAS: 148
GRANDE ÁREA: Ciências Biológicas
ÁREA: Zoologia
SUBÁREA: Taxonomia dos Grupos Recentes
RESUMO:

The family Phoxocephalidae G. O. Sars, 1891, is one of the most diverse amphipod taxa in terms of taxonomic characters, being grouped in the suborder Amphilochidea Boeck, 1871. The most stable characters that characterize the family include: antennae 1 and 2 haustorioid in shape, with multiarticulate accessory flagellum; gnathopods 1 and 2 chelated or subchelated; relation between shape and size of pereopods 6 and 7 (both posteriorly expanded, adapted to the fossorial habit, but pereopod 7 shorter than pereopod 6); uropod 3 with inner ramus present; and telson deeply cleft. The Phoxocephalidae are benthic, living mostly buried in the substrate, and are widely distributed bathymetrically, being found from shallow waters to the deep sea. The material examined was collected off the Atlantic coast of South America, from north of the state of Rio de Janeiro to Mar del Plata, Argentina, from 1969 to 1972, at depths ranging from 15 to 500 meters. The campaigns were organized by the Instituto Oceanográfico from Universidade de São Paulo (IO-USP), using two research vessels, R/V Almirante Saldanha and R/V Prof. W. Besnard, being the latter, part of the MBT (Mini Biological Trawl) project. All specimens are preserved in ethanol 70% and are be deposited at the Crustacea Collection of the Universidade do Estado do Rio de Janeiro (UERJ). For the taxonomic study, the appendages and mouthparts were dissected and mounted in glycerin gel slides, drawn under an optical microscope with camera lucida, Motic-BA 310, and digitalized with CorelDRAW 2018. After the analysis of samples from 33 stations, it was possible to identify 19 species of Phoxocephalidae to date, grouped into 8 known genera, plus the description of a new genus belonging to the subfamily Phoxocephalinae. From this total, we described nine new species grouped in the following genera: Cephalophoxoides Gurjanova, 1977; Heterophoxus Shoemaker, 1925; Limnoporeia Fearn-Wannan, 1968; Phoxocephalinae gen. nov; and Pseudharpinia Schellenberg, 1931. The species Metharpinia dentiurosoma, Alonso de Pina, 2003b, M. grandirama Alonso de Pina, 2003b and M. iado Alonso de Pina 2003a, known only for Argentina were recorded for Brazilian waters for the first time. Besides that, the following species had their distribution extended: M. protuberantis Alonso de Pina, 2001; Microphoxus cornutus (Schellenberg, 1931); Mi. uroserratus Bustamante, 2002; Fuegiphoxus abjectus J.L. Barnard & C.M. Barnard, 1980; F. fuegiensis (Schellenberg 1931); P. tupinamba Senna & Souza-Filho, 2011; and Parafoxiphalus longicarpus Alonso de Pina, 2001. Identification keys to the world were created when necessary or updated to all genera of Phoxocephalidae found in the campaigns. Distribution maps were prepared for all new species described using the software QGIS 3.2.1

MEMBROS DA BANCA:
Interno - 1217103 - ANA CLAUDIA DOS SANTOS BRASIL
Interno - 083.612.007-89 - ANDRÉ RESENDE DE SENNA - UFRJ
Interno - 2289640 - HELIO RICARDO DA SILVA
Externo ao Programa - 1752353 - KARINA ANNES KEUNECKE
Externo à Instituição - CAROLINA TAVARES SCHUMMAN
Externo à Instituição - JESSER FIDÉLIS DE SOUZA FILHO
Externo à Instituição - ALESSANDRO PONCE DE LEÃO GIUPPONI