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Embryonic and Early Larval Development in Hatchery‐Reared Common Snook
Author(s) -
YanesRoca Carlos,
Rhody Nicole R.,
Nystrom Michael,
Wittenrich Matthew L.,
Main Kevan L.
Publication year - 2012
Publication title -
north american journal of aquaculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 41
eISSN - 1548-8454
pISSN - 1522-2055
DOI - 10.1080/15222055.2012.676013
Subject(s) - biology , hatchery , hatching , larva , embryogenesis , ichthyoplankton , zoology , human fertilization , anatomy , fishery , embryo , fish <actinopterygii> , ecology
To gain an improved understanding of the early life history of common snook Centropomus undecimalis and refine hatchery production techniques for this species, a combination of digital photography and histological techniques were used to document the embryonic and early larval development of hatchery‐reared individuals. Embryo development from fertilization to hatching took 15 h at 28°C. Larvae at 2 d posthatch showed fully pigmented eyes, and histological sections of the digestive tract revealed the presence of cellular structures indicative of a functional gut. This suggests that common snook larvae have the mechanical ability to detect, capture, and digest prey at 2 d posthatch.