Ontogeny of gut morphology in the white shrimp Penaeus setiferus (Decapoda, Penaeidae)

Ontogeny of the gut in Penaeus setiferus was investigated by reconstruction of serial sections examined by light microscopy. Development of the gut into the adult form is protracted over several weeks beyond metamorphosis in steps that may be directly related to the unique postlarval life history of Penaeus. The gastric mill is lacking in larval stages of P. setiferus. In protozoeal stages Z1‐Z3, the pyloric ampullae are blind sacs that do not communicate with the midgut. The gland filter first appears in mysis stage M2. The gastric mill in early postlarval (PL) stages consists of poorly chitinized lobes with flexible setae. By PL21 the ossicles of the gastric mill are rigid and setae are replaced by spine‐like denticles, but even by PL35 the gastric mill is neither as massive nor heavily chitinized as in adults. During the mysis stages and early PL stages, the hepatopancreas communicates freely with both the foregut and the midgut trunk. By PL35 the hepatopancreatic ducts are essentially isolated from the remainder of the midgut by foregut ossicles.

[1]  P. Biesiot.  Changes in midgut gland morphology and digestive enzyme activities associated with development in early stages of the American lobster Homarus americanus , 1986 .

[2]  D. Gleason.  Utilization of salt marsh plants by post-larval brown shrimp: carbon assimilation rates and food preferences , 1986 .

[3]  G. Vogt.  Histologie und Cytologie der Mitteldarmdrüse von Penaeus monodon (Decapoda) , 1985 .

[4]  I. Suthers.  Functional morphology of the mouthparts and gastric mill in Penaeus plebejus Hess (Decapoda : Penaeidea) , 1984 .

[5]  D. Gleason,et al.  Herbivory potential of postlarval brown shrimp associated with salt marshes. , 1984 .

[6]  W. Dall,et al.  4 – Functional Aspects of Nutrition and Digestion , 1983 .

[7]  J. Factor.  Development and metamorphosis of the feeding apparatus of the stone crab, Menippe mercenaria (brachyura, xanthidae) , 1982, Journal of morphology.

[8]  L. Sloane,et al.  Effects of dietary protein and starch levels on growth and survival of Penaeus monodon (Fabricius) postlarvae , 1981 .

[9]  J. Factor.  Development and metamorphosis of the digestive system of larval lobsters, Homarus americanus (Decapoda: Nephropidae) , 1981, Journal of morphology.

[10]  V. Chong,et al.  Food and Feeding Habits of the White Prawn Penaeus merguiensis , 1981 .

[11]  L. A. Soto.  Estudio morfologico del estomodeo de penaeus aztecus ives, 1891 (crustacea, decapoda, penaeidae) , 1980 .

[12]  S. Corey,et al.  The mouthparts and digestive tract in the larval stages of Homarus americanus , 1979 .

[13]  J. Kunze,et al.  Functional Morphology of the Mouthparts and Gastric Mill in the Hermit Crabs Clibanarius taeniatus (Milne Edwards), Clibanarius virescens (Krauss), Paguristes squamosus McCulloch and Dardanus setifer (Milne-Edwards) (Anomura: Paguridae) , 1979 .

[14]  L. Shinkarenko.  Development of the Larval Stages of the Blue Swimming Crab Portunus pelagicus L. (Portunidae : Decapoda : Crustacea) , 1979 .

[15]  R. S. Norman,et al.  Comparative study of the stomatogastric system of several decapod crustacea. I. Skeleton , 1977, Journal of morphology.

[16]  M. Postek,et al.  A new short chemical dehydration method for light microscopy preparations of plant material , 1976 .

[17]  R. H. Rigdon,et al.  Gastrointestinal Tract of Penaeus Aztecus Ives, 1891 (Decapoda, Natantia), a Histologic Study , 1976 .

[18]  T. Trask.  Laboratory-reared larvae of Cancer anthonyi (Decapoda: Brachyura) with a brief description of the internal anatomy of the megalopa , 1974 .

[19]  Ralph I. Smith,et al.  Embryology and Phylogeny in Annelids and Arthropods , 1974 .

[20]  A. Lawrence,et al.  Fine structure of the midgut epithelium in the developing brown shrimp, Penaeus aztecus , 1972, Journal of morphology.

[21]  C. Subrahmanyam.  Descriptions of Shrimp Larvae (Family Penaeidae) Off the Mississippi Coast , 1971 .

[22]  M. Roberts.  LARVAL DEVELOPMENT OF PAGURUS LONGICARPUS SAY REARED IN THE LABORATORY, I. DESCRIPTION OF LARVAL INSTARS. , 1970, The Biological bulletin.

[23]  N. Schaefer,et al.  The functional morphology of the fore-gut of three species of decapod Crustacea: Cyclograpsus punctatus Milne-Edwards, Diogenes brevirostris Stimpson and Upogebia africana (Ortmann) , 1970 .

[24]  W. Dall.  The functional anatomy of the digestive tract of a shrimp metapenaeus bennettae racek & dall (Crustacea: Decapoda: Penaeidae) , 1967 .

[25]  H. I. Battle,et al.  The gross and microscopic anatomy of the digestive tract of the oyster, Crassostrea virginica (Gmelin) , 1957 .

[26]  S. Manton.  On the Embryology of the Crustacean Nebalia Bipes , 1934 .

[27]  T. Huxley.  The crayfish;: An introduction to the study of zoology , 1880 .