Journal ArticleDOI
Why is grouper larval rearing difficult?: an approach from the development of the feeding apparatus in early stage larvae of the grouper,Epinephelus coioides
TLDR
Delayed development of the feeding-related bony elements was considered to be a cause of the difficulty in rearing early stage grouper larvae.Abstract:
The osteological development of elements forming the oral cavity was examined in early stage larvae of the grouper,Epinephelus coioides, from hatching to 242.5 hours after hatching. By the time of initial mouth opening, at 54 hours after hatching, the fundamental elements, composed of the trabecula, some components of the lower branchial and hyoid arches, the quadrate and symplectic-hyomandibular cartilages, maxilla and Meckel's cartilage, had appeared. No further elements were observed until 165 hours after initial mouth opening, except some components in the lower branchial arch and head region. The appearance of new elements and initial ossification of existing cartilage occurred thereafter, but all elements related to feeding either had not appeared or had not started ossifying until 188.5 hours after initial mouth opening. Based on the morphology and developmental modes of these elements, the feeding mode of grouper larvae was considered to be “sucking/grasping.” However, the appearance and ossification of elements occurred slowly, with no transitional phase from sucking to grasping modes of feeding being observed during the study; such delayed development of the feeding-related bony elements was considered to be a cause of the difficulty in rearing early stage grouper larvae.read more
Citations
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The threatened status of groupers (Epinephelinae)
TL;DR: Threats to the subfamily Epinephelinae of the Serranidae (groupers), a commercially and ecologically important group of predatory fish which are heavily exploited throughout their range, are assessed.
Journal ArticleDOI
Development of an optimal microalgal diet for the culture of the calanoid copepod Acartia sinjiensis: Effect of algal species and feed concentration on copepod development
TL;DR: The cryptophyte, Cryptomonad sp.
Journal ArticleDOI
A review of grouper (Family Serranidae: Subfamily Epinephelinae) aquaculture from a sustainability science perspective
TL;DR: It is concluded that there is a need for improved higher level coordination between the major producer countries to address identified sustainability constraints to grouper aquaculture.
Journal ArticleDOI
Influence of light intensity on feeding, growth, and early survival of leopard coral grouper (Plectropomus leopardus) larvae under mass-scale rearing conditions
TL;DR: The results indicate that coral grouper larvae are visual feeders and their food intake increases with increasing light intensity.
References
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Journal ArticleDOI
Enzyme clearing of alcian blue stained whole small vertebrates for demonstration of cartilage
Guido Dingerkus,Lowell D. Uhler +1 more
TL;DR: Alcohol treatment in addition to formalin fixation does not affect results with this method, it should be useful to researchers who want to study the cartilage or cartilaginous skeletons in museum specimens, which are routinely fixed in formalin and stored in alcohol.
Journal ArticleDOI
Larval rearing and development of the brown spotted grouper, Epinephelus tauvina (Forskål)
Nazar A. Hussain,Masaki Higuchi +1 more
TL;DR: Epinephelus tauvina (Forskal) has spawned naturally in captivity using rotifers, Artemia nauplii, copepods and minced shrimp meat and the developmental stages from hatching through to metamorphosis are described.
Journal ArticleDOI
The Development of a Mouth-Opening Mechanism in a Generalized Haplochromis Species: H. Elegans Trewavas 1933 (Pisces, Cichlidae)
TL;DR: Of buccal development, stages 5 and 6 proved to be of special interest because of an important kinematical transition and the effects of this transition on movement-patterns during respiration have been understood in the light of changes in the proportions of the head.
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Larval rearing and development of the brown spotted grouper, Epinephelus tauvina (Forskål)
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