Larval development of the subantarctic squat lobster Munida subrugosa (White, 1847) (Anomura: Galatheidae), reared in the laboratory

The larval development of the squat lobster Munida subrugosa from subantarctic waters of the Beagle Channel (Tierra del Fuego, Argentina) was studied under controlled laboratory conditions of temperature, salinity, and food supply. Developmental times, survival, and growth of larvae and early juveni...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Pérez Barros, Patricia, Calcagno, Javier Angel, Lovrich, Gustavo Alejandro
Publicado:	2007
Materias:	Beagle Channel Decapods Growth Larvae Survival aquaculture production food supply growth hatching laboratory method larval development lobster mortality rearing salinity survival temperature Anomura Artemia Decapoda (Crustacea) Galatheidae Munida subrugosa
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00220981_v352_n1_p35_PerezBarros http://hdl.handle.net/20.500.12110/paper_00220981_v352_n1_p35_PerezBarros
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00220981_v352_n1_p35_PerezBarros
record_format	dspace
spelling	paper:paper_00220981_v352_n1_p35_PerezBarros2023-06-08T14:45:47Z Larval development of the subantarctic squat lobster Munida subrugosa (White, 1847) (Anomura: Galatheidae), reared in the laboratory Pérez Barros, Patricia Calcagno, Javier Angel Lovrich, Gustavo Alejandro Beagle Channel Decapods Growth Larvae Survival aquaculture production food supply growth hatching laboratory method larval development lobster mortality rearing salinity survival temperature Anomura Artemia Decapoda (Crustacea) Galatheidae Munida subrugosa The larval development of the squat lobster Munida subrugosa from subantarctic waters of the Beagle Channel (Tierra del Fuego, Argentina) was studied under controlled laboratory conditions of temperature, salinity, and food supply. Developmental times, survival, and growth of larvae and early juveniles were investigated. Hatching of the entire brood always occurred during one night. Larvae were kept in 100ml individual bowls with filtered seawater at 8 ± 0.5°C and fed with Artemia spp. nauplii three times a week. Larvae passed through 6 zoeal instars and one megalopa. Previously, only five zoeal instars were known from this species. Mean cumulative durations of the zoeal stages I to VI were: 20.5 ± 2.5, 33.9 ± 4.1, 43.3 ± 5.4, 52.6 ± 5, 61.2 ± 3.9, and 83days, respectively. By adding the 28days that a single megalopa took to metamorphose to crab I stage, the complete larval development lasted 111days. Highest mortality occurred prior to the moult from the zoea I to zoea II stage (79.21% ± 18.65%) and during the moult from zoea VI to megalopa (92.86%). Carapace length was 1.64 ± 0.06, 1.52 ± 0.16, 1.57 ± 0.26, 1.64 ± 0.21, 2.11 ± 0.35, and 2.58 ± 0.19mm, for zoeal stages I to VI, respectively. Carapace length of megalopae and crab I instars was similar (2.85 ± 0.28 and the 2.84 ± 0.05, respectively). Unlike other subantarctic decapods, which show a tendency towards abbreviated larval development and/or some degree of endotrophy, M. subrugosa shows an extended planktotrophic larval development synchronized with short seasonal plankton production in austral summers. © 2007 Elsevier B.V. All rights reserved. Fil:Pérez-Barros, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Calcagno, J.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lovrich, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00220981_v352_n1_p35_PerezBarros http://hdl.handle.net/20.500.12110/paper_00220981_v352_n1_p35_PerezBarros
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Beagle Channel Decapods Growth Larvae Survival aquaculture production food supply growth hatching laboratory method larval development lobster mortality rearing salinity survival temperature Anomura Artemia Decapoda (Crustacea) Galatheidae Munida subrugosa
spellingShingle	Beagle Channel Decapods Growth Larvae Survival aquaculture production food supply growth hatching laboratory method larval development lobster mortality rearing salinity survival temperature Anomura Artemia Decapoda (Crustacea) Galatheidae Munida subrugosa Pérez Barros, Patricia Calcagno, Javier Angel Lovrich, Gustavo Alejandro Larval development of the subantarctic squat lobster Munida subrugosa (White, 1847) (Anomura: Galatheidae), reared in the laboratory
topic_facet	Beagle Channel Decapods Growth Larvae Survival aquaculture production food supply growth hatching laboratory method larval development lobster mortality rearing salinity survival temperature Anomura Artemia Decapoda (Crustacea) Galatheidae Munida subrugosa
description	The larval development of the squat lobster Munida subrugosa from subantarctic waters of the Beagle Channel (Tierra del Fuego, Argentina) was studied under controlled laboratory conditions of temperature, salinity, and food supply. Developmental times, survival, and growth of larvae and early juveniles were investigated. Hatching of the entire brood always occurred during one night. Larvae were kept in 100ml individual bowls with filtered seawater at 8 ± 0.5°C and fed with Artemia spp. nauplii three times a week. Larvae passed through 6 zoeal instars and one megalopa. Previously, only five zoeal instars were known from this species. Mean cumulative durations of the zoeal stages I to VI were: 20.5 ± 2.5, 33.9 ± 4.1, 43.3 ± 5.4, 52.6 ± 5, 61.2 ± 3.9, and 83days, respectively. By adding the 28days that a single megalopa took to metamorphose to crab I stage, the complete larval development lasted 111days. Highest mortality occurred prior to the moult from the zoea I to zoea II stage (79.21% ± 18.65%) and during the moult from zoea VI to megalopa (92.86%). Carapace length was 1.64 ± 0.06, 1.52 ± 0.16, 1.57 ± 0.26, 1.64 ± 0.21, 2.11 ± 0.35, and 2.58 ± 0.19mm, for zoeal stages I to VI, respectively. Carapace length of megalopae and crab I instars was similar (2.85 ± 0.28 and the 2.84 ± 0.05, respectively). Unlike other subantarctic decapods, which show a tendency towards abbreviated larval development and/or some degree of endotrophy, M. subrugosa shows an extended planktotrophic larval development synchronized with short seasonal plankton production in austral summers. © 2007 Elsevier B.V. All rights reserved.
author	Pérez Barros, Patricia Calcagno, Javier Angel Lovrich, Gustavo Alejandro
author_facet	Pérez Barros, Patricia Calcagno, Javier Angel Lovrich, Gustavo Alejandro
author_sort	Pérez Barros, Patricia
title	Larval development of the subantarctic squat lobster Munida subrugosa (White, 1847) (Anomura: Galatheidae), reared in the laboratory
title_short	Larval development of the subantarctic squat lobster Munida subrugosa (White, 1847) (Anomura: Galatheidae), reared in the laboratory
title_full	Larval development of the subantarctic squat lobster Munida subrugosa (White, 1847) (Anomura: Galatheidae), reared in the laboratory
title_fullStr	Larval development of the subantarctic squat lobster Munida subrugosa (White, 1847) (Anomura: Galatheidae), reared in the laboratory
title_full_unstemmed	Larval development of the subantarctic squat lobster Munida subrugosa (White, 1847) (Anomura: Galatheidae), reared in the laboratory
title_sort	larval development of the subantarctic squat lobster munida subrugosa (white, 1847) (anomura: galatheidae), reared in the laboratory
publishDate	2007
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00220981_v352_n1_p35_PerezBarros http://hdl.handle.net/20.500.12110/paper_00220981_v352_n1_p35_PerezBarros
work_keys_str_mv	AT perezbarrospatricia larvaldevelopmentofthesubantarcticsquatlobstermunidasubrugosawhite1847anomuragalatheidaerearedinthelaboratory AT calcagnojavierangel larvaldevelopmentofthesubantarcticsquatlobstermunidasubrugosawhite1847anomuragalatheidaerearedinthelaboratory AT lovrichgustavoalejandro larvaldevelopmentofthesubantarcticsquatlobstermunidasubrugosawhite1847anomuragalatheidaerearedinthelaboratory
_version_	1768546615139762176

Larval development of the subantarctic squat lobster Munida subrugosa (White, 1847) (Anomura: Galatheidae), reared in the laboratory

Ejemplares similares