Morphological development and growth patterns of the leopard grouper Mycteroperca rosacea during larval development
Identifieur interne : 000577 ( Main/Exploration ); précédent : 000576; suivant : 000578Morphological development and growth patterns of the leopard grouper Mycteroperca rosacea during larval development
Auteurs : Roberto Martínez-Lagos [Mexique] ; Vicente Gracia-L Pez [Mexique]Source :
- Aquaculture Research [ 1355-557X ] ; 2009-12.
English descriptors
Abstract
At 25 °C, metamorphosis in leopard grouper Mycteroperca rosacea larvae took 60 days after hatching. The total length at day 1 was 1.95±0.22 mm and juveniles reached a length of 30.64±0.23 mm at day 60; the increase was approximately linear. We describe eight stages of development during this period. Larvae with the yolk sac attached occur from days 1 to 4 (Stages 1 and 2). The preflexion occurs on days 5–20 (Stages 3 and 4). Bending notochord occurred at day 25 (Stage 5). The other morphological changes that precede the juvenile phase occurred progressively until day 60 (Stages 6–8). Allometric growth in the height and length of the head, trunk length, height and length of the tail and the diameter of the eye compared with the total length showed two distinct stages of growth. Inflexion point, where growth is positive, occurred when larvae reached between 18.75 and 21.59 mm, which corresponds to larvae at days 35–40.
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DOI: 10.1111/j.1365-2109.2009.02313.x
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The total length at day 1 was 1.95±0.22 mm and juveniles reached a length of 30.64±0.23 mm at day 60; the increase was approximately linear. We describe eight stages of development during this period. Larvae with the yolk sac attached occur from days 1 to 4 (Stages 1 and 2). The preflexion occurs on days 5–20 (Stages 3 and 4). Bending notochord occurred at day 25 (Stage 5). The other morphological changes that precede the juvenile phase occurred progressively until day 60 (Stages 6–8). Allometric growth in the height and length of the head, trunk length, height and length of the tail and the diameter of the eye compared with the total length showed two distinct stages of growth. Inflexion point, where growth is positive, occurred when larvae reached between 18.75 and 21.59 mm, which corresponds to larvae at days 35–40.</div></front></TEI><affiliations><list><country><li>Mexique</li></country></list><tree><country name="Mexique"><noRegion><name sortKey="Martinez Agos, Roberto" sort="Martinez Agos, Roberto" uniqKey="Martinez Agos R" first="Roberto" last="Martínez-Lagos">Roberto Martínez-Lagos</name></noRegion><name sortKey="Gracia Pez, Vicente" sort="Gracia Pez, Vicente" uniqKey="Gracia Pez V" first="Vicente" last="Gracia-L Pez">Vicente Gracia-L Pez</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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