Larval development of the subantarctic king crabs Lithodes santolla and Paralomis granulosa reared in the laboratory

The larval development and survival in the two subantarctic lithodid crabs Lithodes santolla (Jaquinot) and Paralomis granulosa (Molina) from the Argentine Beagle Channel were studied in laboratory cultures. In L. santolla, larval development lasted about 70 days, passing through three zoeal stages...

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Autores principales: Calcagno, J.A., Anger, K., Lovrich, G.A., Thatje, S., Kaffenberger, A.
Formato: JOUR
Materias:
Crustacea
Decapoda
Larval development
Subantarctic
crab
larval development
survival
Beagle Channel
South America
Animalia
Argentina (fish)
Artemia
Chaceon affinis
Decapoda (Crustacea)
Limulus
Lithodes
Lithodes santolla
Paralomis
Paralomis granulosa
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_1438387X_v58_n1_p11_Calcagno
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_1438387X_v58_n1_p11_Calcagno
record_format dspace
spelling todo:paper_1438387X_v58_n1_p11_Calcagno2023-10-03T16:16:05Z Larval development of the subantarctic king crabs Lithodes santolla and Paralomis granulosa reared in the laboratory Calcagno, J.A. Anger, K. Lovrich, G.A. Thatje, S. Kaffenberger, A. Crustacea Decapoda Larval development Subantarctic crab larval development survival Beagle Channel South America Animalia Argentina (fish) Artemia Chaceon affinis Crustacea Decapoda (Crustacea) Limulus Lithodes Lithodes santolla Paralomis Paralomis granulosa The larval development and survival in the two subantarctic lithodid crabs Lithodes santolla (Jaquinot) and Paralomis granulosa (Molina) from the Argentine Beagle Channel were studied in laboratory cultures. In L. santolla, larval development lasted about 70 days, passing through three zoeal stages and the megalopa stage, with a duration of approximately 4, 7, 11 and 48 days, respectively. The larval development in P. granulosa is more abbreviated, comprising only two zoeal stages and the megalopa stage, with 6, 11 and 43 days' duration, respectively. In both species, we tested for effects of presence versus absence of food (Artemia nauplii) on larval development duration and survival rate. In P. granulosa, we also studied effects of different rearing conditions, such as individual versus mass cultures, as well as aerated versus unaerated cultures. No differences in larval development duration and survival were observed between animals subjected to those different rearing conditions. The lack of response to the presence or absence of potential food confirms, in both species, a complete lecithotrophic mode of larval development. Since lithodid crabs are of high economic importance in the artisanal fishery in the southernmost parts of South America, the knowledge of optimal rearing conditions for lithodid larvae is essential for future attempts at repopulating the collapsing natural stocks off Tierra del Fuego. © Springer-Verlag and AWI 2003. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_1438387X_v58_n1_p11_Calcagno
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Crustacea
Decapoda
Larval development
Subantarctic
crab
larval development
survival
Beagle Channel
South America
Animalia
Argentina (fish)
Artemia
Chaceon affinis
Crustacea
Decapoda (Crustacea)
Limulus
Lithodes
Lithodes santolla
Paralomis
Paralomis granulosa
spellingShingle Crustacea
Decapoda
Larval development
Subantarctic
crab
larval development
survival
Beagle Channel
South America
Animalia
Argentina (fish)
Artemia
Chaceon affinis
Crustacea
Decapoda (Crustacea)
Limulus
Lithodes
Lithodes santolla
Paralomis
Paralomis granulosa
Calcagno, J.A.
Anger, K.
Lovrich, G.A.
Thatje, S.
Kaffenberger, A.
Larval development of the subantarctic king crabs Lithodes santolla and Paralomis granulosa reared in the laboratory
topic_facet Crustacea
Decapoda
Larval development
Subantarctic
crab
larval development
survival
Beagle Channel
South America
Animalia
Argentina (fish)
Artemia
Chaceon affinis
Crustacea
Decapoda (Crustacea)
Limulus
Lithodes
Lithodes santolla
Paralomis
Paralomis granulosa
description The larval development and survival in the two subantarctic lithodid crabs Lithodes santolla (Jaquinot) and Paralomis granulosa (Molina) from the Argentine Beagle Channel were studied in laboratory cultures. In L. santolla, larval development lasted about 70 days, passing through three zoeal stages and the megalopa stage, with a duration of approximately 4, 7, 11 and 48 days, respectively. The larval development in P. granulosa is more abbreviated, comprising only two zoeal stages and the megalopa stage, with 6, 11 and 43 days' duration, respectively. In both species, we tested for effects of presence versus absence of food (Artemia nauplii) on larval development duration and survival rate. In P. granulosa, we also studied effects of different rearing conditions, such as individual versus mass cultures, as well as aerated versus unaerated cultures. No differences in larval development duration and survival were observed between animals subjected to those different rearing conditions. The lack of response to the presence or absence of potential food confirms, in both species, a complete lecithotrophic mode of larval development. Since lithodid crabs are of high economic importance in the artisanal fishery in the southernmost parts of South America, the knowledge of optimal rearing conditions for lithodid larvae is essential for future attempts at repopulating the collapsing natural stocks off Tierra del Fuego. © Springer-Verlag and AWI 2003.
format JOUR
author Calcagno, J.A.
Anger, K.
Lovrich, G.A.
Thatje, S.
Kaffenberger, A.
author_facet Calcagno, J.A.
Anger, K.
Lovrich, G.A.
Thatje, S.
Kaffenberger, A.
author_sort Calcagno, J.A.
title Larval development of the subantarctic king crabs Lithodes santolla and Paralomis granulosa reared in the laboratory
title_short Larval development of the subantarctic king crabs Lithodes santolla and Paralomis granulosa reared in the laboratory
title_full Larval development of the subantarctic king crabs Lithodes santolla and Paralomis granulosa reared in the laboratory
title_fullStr Larval development of the subantarctic king crabs Lithodes santolla and Paralomis granulosa reared in the laboratory
title_full_unstemmed Larval development of the subantarctic king crabs Lithodes santolla and Paralomis granulosa reared in the laboratory
title_sort larval development of the subantarctic king crabs lithodes santolla and paralomis granulosa reared in the laboratory
url http://hdl.handle.net/20.500.12110/paper_1438387X_v58_n1_p11_Calcagno
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