The gonads of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae): A macroscopic and histological perspective

The aim of this study is to characterize the gonads of Aegla platensis, relating aspects of colour and size of ovaries, testes and vasa deferentia (VD) to histological observations. The ovaries are H-shaped, extending from behind the stomach and ending at the 1st or 2nd abdominal somite. The male ha...

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Detalles Bibliográficos
Autores principales: Sokolowicz, C.C., López-Greco, L.S., Gonçalves, R., Bond-Buckup, G.
Formato: JOUR
Materias:
Aeglidae
Gonadal description
Ovary degree for development
color
crustacean
histology
reproductive biology
size structure
Aegla platensis
Anomura
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00017272_v88_n1_p71_Sokolowicz
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00017272_v88_n1_p71_Sokolowicz
record_format dspace
spelling todo:paper_00017272_v88_n1_p71_Sokolowicz2023-10-03T13:51:48Z The gonads of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae): A macroscopic and histological perspective Sokolowicz, C.C. López-Greco, L.S. Gonçalves, R. Bond-Buckup, G. Aeglidae Gonadal description Ovary degree for development color crustacean histology reproductive biology size structure Aegla platensis Aeglidae Anomura The aim of this study is to characterize the gonads of Aegla platensis, relating aspects of colour and size of ovaries, testes and vasa deferentia (VD) to histological observations. The ovaries are H-shaped, extending from behind the stomach and ending at the 1st or 2nd abdominal somite. The male has a pair of testes from which the VD issue and extend over the pereon. For males and females, macroscopic categories of gonad development are defined. Stages of the male gonad are defined as types 1, 2 and 3. Type 1 includes the less developed gonads, and type 3 includes extremely developed testes and completely differentiated VD. The ovaries are classified into four stages according to their colour: I (white), II (yellow), III (orange) and IV (red), beginning with the least developed gonads. The number and size of oogonia and oocytes depend on the stage of the ovary and coincide with the different degrees of development as indicated by ovary colour. In males, the presence or absence of spermatozoa in the testes and VD is determined only for the more developed gonads. Neither spermathecae (female) nor spermatophores (male) were found. The lack of spermatophore in the present species is a rare characteristic among the anomurans. © 2007 The Authors. Fil:López-Greco, L.S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00017272_v88_n1_p71_Sokolowicz
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Aeglidae
Gonadal description
Ovary degree for development
color
crustacean
histology
reproductive biology
size structure
Aegla platensis
Aeglidae
Anomura
spellingShingle Aeglidae
Gonadal description
Ovary degree for development
color
crustacean
histology
reproductive biology
size structure
Aegla platensis
Aeglidae
Anomura
Sokolowicz, C.C.
López-Greco, L.S.
Gonçalves, R.
Bond-Buckup, G.
The gonads of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae): A macroscopic and histological perspective
topic_facet Aeglidae
Gonadal description
Ovary degree for development
color
crustacean
histology
reproductive biology
size structure
Aegla platensis
Aeglidae
Anomura
description The aim of this study is to characterize the gonads of Aegla platensis, relating aspects of colour and size of ovaries, testes and vasa deferentia (VD) to histological observations. The ovaries are H-shaped, extending from behind the stomach and ending at the 1st or 2nd abdominal somite. The male has a pair of testes from which the VD issue and extend over the pereon. For males and females, macroscopic categories of gonad development are defined. Stages of the male gonad are defined as types 1, 2 and 3. Type 1 includes the less developed gonads, and type 3 includes extremely developed testes and completely differentiated VD. The ovaries are classified into four stages according to their colour: I (white), II (yellow), III (orange) and IV (red), beginning with the least developed gonads. The number and size of oogonia and oocytes depend on the stage of the ovary and coincide with the different degrees of development as indicated by ovary colour. In males, the presence or absence of spermatozoa in the testes and VD is determined only for the more developed gonads. Neither spermathecae (female) nor spermatophores (male) were found. The lack of spermatophore in the present species is a rare characteristic among the anomurans. © 2007 The Authors.
format JOUR
author Sokolowicz, C.C.
López-Greco, L.S.
Gonçalves, R.
Bond-Buckup, G.
author_facet Sokolowicz, C.C.
López-Greco, L.S.
Gonçalves, R.
Bond-Buckup, G.
author_sort Sokolowicz, C.C.
title The gonads of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae): A macroscopic and histological perspective
title_short The gonads of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae): A macroscopic and histological perspective
title_full The gonads of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae): A macroscopic and histological perspective
title_fullStr The gonads of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae): A macroscopic and histological perspective
title_full_unstemmed The gonads of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae): A macroscopic and histological perspective
title_sort gonads of aegla platensis schmitt (decapoda, anomura, aeglidae): a macroscopic and histological perspective
url http://hdl.handle.net/20.500.12110/paper_00017272_v88_n1_p71_Sokolowicz
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