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
Autor principal:	López G., Laura Susana
Publicado:	2007
Materias:	Aeglidae Gonadal description Ovary degree for development color crustacean histology reproductive biology size structure Aegla platensis Anomura
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00017272_v88_n1_p71_Sokolowicz 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	paper:paper_00017272_v88_n1_p71_Sokolowicz
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spelling	paper:paper_00017272_v88_n1_p71_Sokolowicz2023-06-08T14:21:22Z The gonads of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae): A macroscopic and histological perspective López G., Laura Susana 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. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00017272_v88_n1_p71_Sokolowicz 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 López G., Laura Susana 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.
author	López G., Laura Susana
author_facet	López G., Laura Susana
author_sort	López G., Laura Susana
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
publishDate	2007
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00017272_v88_n1_p71_Sokolowicz http://hdl.handle.net/20.500.12110/paper_00017272_v88_n1_p71_Sokolowicz
work_keys_str_mv	AT lopezglaurasusana thegonadsofaeglaplatensisschmittdecapodaanomuraaeglidaeamacroscopicandhistologicalperspective AT lopezglaurasusana gonadsofaeglaplatensisschmittdecapodaanomuraaeglidaeamacroscopicandhistologicalperspective
_version_	1768546046160404480

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

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