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) on the continental shelf and deep sea of the Atlantic Southwest

PALAVRAS-CHAVES:

amphipod, taxonomy, new species, 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 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
20 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 will be deposited at the Crustacea Collection of
the Faculdade de Formação de Professores (CRFFP). 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 X8. After
the analysis of samples from 24 stations, it was possible to identify 11 species of
Phoxocephalidae to date, grouped into 5 known genera, plus the description of a new genus
belonging to the subfamily Phoxocephalinae. From this total, we described seven 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 had their distribution extended to Brazilian waters. Identification keys to the
world were created to all genera (except Pseudharpinia) of Phoxocephalidae found in the
campaigns. A catalog of the family Phoxocephalidae is being produced with information about
distribution, bathymetry and ecological data for all species in the world.

MEMBROS DA BANCA:
Externo à Instituição - ALESSANDRO PONCE DE LEÃO GIUPPONI
Interno - 1217103 - ANA CLAUDIA DOS SANTOS BRASIL
Interno - 083.612.007-89 - ANDRÉ RESENDE DE SENNA - UFRJ
Presidente - 387200 - FRANCISCO GERSON ARAUJO
Interno - 2289640 - HELIO RICARDO DA SILVA
Externo à Instituição - JESSER FIDÉLIS DE SOUZA FILHO
Externo ao Programa - 1752353 - KARINA ANNES KEUNECKE