Influence of size, age and maternal condition on the oocyte dry weight of Argentine hake (Merluccius hubbsi)

Effects of maternal age-size and condition on oocyte dry weight were analysed for Merluccius hubbsi. Samples of mature females were collected in the Patagonian spawning area during 10 research surveys carried out between 2000 and 2005. Dry weight of 50 hydrated oocytes ranged from 0.80 to 1.90 mg. R...

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Autores principales: Macchi, G.J., Pájaro, M., Militelli, M.I., Radovani, N., Rivas, L.
Formato: JOUR
Materias:
Argentine hake
Condition factor
Maternal age-size
Merluccius hubbsi
Oocyte dry weight
age
fish
maternal effect
size
spawning
Patagonia
South America
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01657836_v80_n2-3_p345_Macchi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01657836_v80_n2-3_p345_Macchi
record_format dspace
spelling todo:paper_01657836_v80_n2-3_p345_Macchi2023-10-03T15:03:08Z Influence of size, age and maternal condition on the oocyte dry weight of Argentine hake (Merluccius hubbsi) Macchi, G.J. Pájaro, M. Militelli, M.I. Radovani, N. Rivas, L. Argentine hake Condition factor Maternal age-size Merluccius hubbsi Oocyte dry weight age fish maternal effect size spawning Patagonia South America Merluccius hubbsi Effects of maternal age-size and condition on oocyte dry weight were analysed for Merluccius hubbsi. Samples of mature females were collected in the Patagonian spawning area during 10 research surveys carried out between 2000 and 2005. Dry weight of 50 hydrated oocytes ranged from 0.80 to 1.90 mg. Relationships of this variable with total length and age were best described by a logarithmic model during the spawning peak. At the beginning and at the end of the reproductive season no significant relationship between these variables was observed, but a decrease in egg dry weight was detected during the spawning period. In general, young spawners (≤5-year-old) showed more variability in egg dry weight, which was associated with a reproductive season shorter than that of old females. Relative condition factor did not shows a significant relationship with oocyte dry weight, and mean values of this index were similar for different months of the spawning seasons analysed. © 2006 Elsevier B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01657836_v80_n2-3_p345_Macchi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Argentine hake
Condition factor
Maternal age-size
Merluccius hubbsi
Oocyte dry weight
age
fish
maternal effect
size
spawning
Patagonia
South America
Merluccius hubbsi
spellingShingle Argentine hake
Condition factor
Maternal age-size
Merluccius hubbsi
Oocyte dry weight
age
fish
maternal effect
size
spawning
Patagonia
South America
Merluccius hubbsi
Macchi, G.J.
Pájaro, M.
Militelli, M.I.
Radovani, N.
Rivas, L.
Influence of size, age and maternal condition on the oocyte dry weight of Argentine hake (Merluccius hubbsi)
topic_facet Argentine hake
Condition factor
Maternal age-size
Merluccius hubbsi
Oocyte dry weight
age
fish
maternal effect
size
spawning
Patagonia
South America
Merluccius hubbsi
description Effects of maternal age-size and condition on oocyte dry weight were analysed for Merluccius hubbsi. Samples of mature females were collected in the Patagonian spawning area during 10 research surveys carried out between 2000 and 2005. Dry weight of 50 hydrated oocytes ranged from 0.80 to 1.90 mg. Relationships of this variable with total length and age were best described by a logarithmic model during the spawning peak. At the beginning and at the end of the reproductive season no significant relationship between these variables was observed, but a decrease in egg dry weight was detected during the spawning period. In general, young spawners (≤5-year-old) showed more variability in egg dry weight, which was associated with a reproductive season shorter than that of old females. Relative condition factor did not shows a significant relationship with oocyte dry weight, and mean values of this index were similar for different months of the spawning seasons analysed. © 2006 Elsevier B.V. All rights reserved.
format JOUR
author Macchi, G.J.
Pájaro, M.
Militelli, M.I.
Radovani, N.
Rivas, L.
author_facet Macchi, G.J.
Pájaro, M.
Militelli, M.I.
Radovani, N.
Rivas, L.
author_sort Macchi, G.J.
title Influence of size, age and maternal condition on the oocyte dry weight of Argentine hake (Merluccius hubbsi)
title_short Influence of size, age and maternal condition on the oocyte dry weight of Argentine hake (Merluccius hubbsi)
title_full Influence of size, age and maternal condition on the oocyte dry weight of Argentine hake (Merluccius hubbsi)
title_fullStr Influence of size, age and maternal condition on the oocyte dry weight of Argentine hake (Merluccius hubbsi)
title_full_unstemmed Influence of size, age and maternal condition on the oocyte dry weight of Argentine hake (Merluccius hubbsi)
title_sort influence of size, age and maternal condition on the oocyte dry weight of argentine hake (merluccius hubbsi)
url http://hdl.handle.net/20.500.12110/paper_01657836_v80_n2-3_p345_Macchi
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AT militellimi influenceofsizeageandmaternalconditionontheoocytedryweightofargentinehakemerlucciushubbsi
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