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Larval development staging table for hatchery-reared sunshine bass (Morone chrysops♀ x Morone saxatilis♂)
Year:
2022
Source of publication :
aquaculture
Authors :
Golan, Matan
;
.
Volume :
546
Co-Authors:

Deodatta S. Gajbhiye
Itay Oz
Yaara Y. Columbus-Shenkar
Matan Golan

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Aquaculture of hybrid Morone species is preferred over that of purebred strains due to their higher growth rates and resilience to a wide range of rearing conditions. One of the most popular hybrids is the sunshine bass, which is a cross between white bass (M. chrysops) females and striped bass (M. saxatilis) males. Yet, despite their growing economic importance, a detailed description of sunshine bass larval development under captive conditions is missing. Here, we provide a detailed staging system of hatchery-reared sunshine bass larvae. Based on externally visible features, we define 15 distinct stages from hatching to juvenile stage (2–43 days post-fertilization). We identified a biphasic pattern of larval growth, with a 2-fold increase in growth rates (from 0.2 to 0.4 mm/day) around the onset of metamorphosis and larger variations in length and weight after the completion of metamorphosis. Both age (R2 = 0.93) and standard length (R2 = 0.89) were good predictors of larval stage. Overall, this work provides a reference for studies of factors that affect sunshine bass larval development and, thus, is an important step towards resolving bottlenecks in larval rearing operations in this species.

Note:
Related Files :
Bass
larval development
Morone
Staging
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Related Content
More details
DOI :
10.1016/j.aquaculture.2021.737379
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
56288
Last updated date:
02/03/2022 17:27
Creation date:
13/09/2021 18:12
Scientific Publication
Larval development staging table for hatchery-reared sunshine bass (Morone chrysops♀ x Morone saxatilis♂)
546

Deodatta S. Gajbhiye
Itay Oz
Yaara Y. Columbus-Shenkar
Matan Golan

Larval development staging table for hatchery-reared sunshine bass (Morone chrysops♀ x Morone saxatilis♂)

Aquaculture of hybrid Morone species is preferred over that of purebred strains due to their higher growth rates and resilience to a wide range of rearing conditions. One of the most popular hybrids is the sunshine bass, which is a cross between white bass (M. chrysops) females and striped bass (M. saxatilis) males. Yet, despite their growing economic importance, a detailed description of sunshine bass larval development under captive conditions is missing. Here, we provide a detailed staging system of hatchery-reared sunshine bass larvae. Based on externally visible features, we define 15 distinct stages from hatching to juvenile stage (2–43 days post-fertilization). We identified a biphasic pattern of larval growth, with a 2-fold increase in growth rates (from 0.2 to 0.4 mm/day) around the onset of metamorphosis and larger variations in length and weight after the completion of metamorphosis. Both age (R2 = 0.93) and standard length (R2 = 0.89) were good predictors of larval stage. Overall, this work provides a reference for studies of factors that affect sunshine bass larval development and, thus, is an important step towards resolving bottlenecks in larval rearing operations in this species.

Scientific Publication
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