Banca de QUALIFICAÇÃO: CARLITO ALVES DO NASCIMENTO

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : CARLITO ALVES DO NASCIMENTO
DATE: 21/03/2024
TIME: 08:30
LOCAL: meet.google.com/cax-qyjb-fyh
TITLE:

Relative growth and morphological sexual maturity of the shrimp Macrobrachium acanthurus (Wiegmann, 1836) (Decapoda; Palaemonidae) in a river in Southern Bahia, Northeastern Brazil

KEY WORDS:

allometry; caridea; sexual dimorphism; propodium; second pleura

PAGES: 23
BIG AREA: Ciências Biológicas
AREA: Zoologia
SUBÁREA: Zoologia Aplicada
SPECIALTY: Conservação das Espécies Animais
SUMMARY:

Macrobrachium acanthurus (Wiegmann, 1836) is an important fishing resource for Brazilian carcinofauna. It has a wide geographic distribution, occurs in rivers and coastal lakes and, like other amphidromous shrimp, requires a brackish environment to complete its life cycle. The most recent studies on morphological and reproductive aspects of M. acanthurus are focused on the same geographic area, which makes knowledge of the different populations of this species still incomplete and fragmented. Morphometric analyzes were carried out in order to identify morphological sexual maturity, sexual dimorphism and relative growth patterns between males, females, juveniles and adults of a population not yet studied. For relative growth, the length of the following structures was evaluated: cephalothorax, ischium, merus, carpus, propodus, dactyl, chelipod and second pleura (females). The length of the propodus in males and the second pleura in females were the structures that best distinguished juveniles and adults. The average carapace length in males was 18.42 mm (± 6.70 mm) and in females it was 10.57 mm (± 5.67 mm). Males reach morphological sexual maturity with a carapace length of 11.80 mm and females with 9.90 mm, with sexual dimorphism in size in favor of males being identified.

COMMITTEE MEMBERS:
Presidente - 1217728 - FABRICIO LOPES DE CARVALHO
Interno - 1956163 - NADSON RESSYE SIMOES DA SILVA
Externo à Instituição - DANIEL JOSÉ MARCONDES DE LIMA
Externo à Instituição - JOÃO ALBERTO FERINELLI PANTALEÃO
Externo à Instituição - CARLOS EDUARDO ROCHA DUARTE ALENCAR
Externo à Instituição - ALLYSSON PONTES PINHEIRO
Externo à Instituição - RAFAEL DE CARVALHO SANTOS
Externo à Instituição - CAIO DOS SANTOS NOGUEIRA