Synopsis
Structure and function of the digestive system and feeding characteristics of the chondrosteans are reviewed. Although the group exhibits a wide diversity of feeding habits including piscivory, benthophagy, and planktivory, they are principally carnivores throughout their life history. Examination of digestive system structure reveals the basic structure to be similar among the species with some modification to accomodate the different food types. For the species studied, composition of the adult digestive enzyme complement is consistent with the carnivorous habits with proteases dominating and only low levels of carbohydrase activity. There are three secretory phases during development of the digestive system. Each corresponds with different food habits of the different life-history intervals. Vision is apparently not utilized for feeding in any interval. Instead food is recognized and located primarily by gustation, olfaction, textural qualities, and, possibly, electroreception.
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Afonich, R. V. 1979. The feeding habits of stellate sturgeon larvae at the early stages of development in hatcheries. Trudy Vses. Nauchno-Issled. Inst. Morsk. Rybn. Khozy. Okeanograf. 74: 58–81. (In Russian).
Andrew, W. & C. P. Hickman. 1974. Histology of the vertebrates, a comparative text. A. V. Mosby Co., St. Louis. pp. 243–315.
Atema, J. 1977. Functional separation of smell and taste in fish and crustacea. pp 165–174. In: J. LeMagnen & P. MacLeod (ed.) Olfaction and Taste, Vol. 1, Information Retrieval, Washington, D.C.
Ballard, W. W. & R. G. Needham. 1964. Normal embryonic stages of Polyodon spathula (Walbaum). J. Morph. 114: 465–478.
Baranova, V. P. & M. P. Miroshnichenko. 1969. Conditions and prospects for culturing sturgeon fry in the Volgograd sturgeon nursery. Hydrobiol. J. 5: 63–67.
Barnard, E. A. 1973. Comparative biochemistry and physiology of digestion. pp. 133–164. In: C. L. Prosser.
Barracund, M., P. Ferlin, P. Lamarque & J. J. Sabaut. 1979. Alimentation artificielle de l'esturgeon (Acipenserbaeri). pp. 411–422. In: J. E. Halver & K. Tiews (ed.) Finfish Nutrition and Fishfeed Technology, Vol. 1, Heeneman and Co., Berlin.
Buddington, R. K. 1983. Digestion and feeding of the white sturgeon, Acipenser transmontanus. Ph.D. Dissertation. University of California, Davis, 139 pp.
Buddington, R. K. 1985. Digestive secretions of lake sturgeon (Acipenser fulvescens) during early development. J. Fish Biol. (in press).
Buddington, R. K. & S. I. Doroshov. 1984. Feeding trials with hatchery produced white sturgeon juveniles (Acipenser transmontanus). Aquacult. 36: 237–243.
Buddington, R. K. & S. I. Doroshov. 1985a. Development of digestive secretions in white sturgeon (Acipenser transmontanus). Comp. Biochem. Physiol B. (in press).
Buddington, R. K. & S. I. Doroshov. 1985b. Digestive enzyme complement of white sturgeon (Acipenser transmontanus). Trans. Amer. Fish. Soc. (in press).
Buddington, R. K. & S. I. Doroshov. 1985c. Anatomy and histology of the white sturgeon digestive system (Acipenser transmontanus). J. Fish Biol. (in press).
Buddington, R. K. & J. M. Diamond. 1985. Diet dependence of vertebrate intestinal nutrient transport: a genotypic component. Fed. Proc. 44: 811.
Caloianu-Iordachel, M. 1960. Contribution to the histophysiological study of the digestive apparatus in the Black Sea sturgeon, star sturgeon, great sturgeon, and in Acipenser nudiventris Lov. during the first stages of post-embryongensis. Rev. Biol. 5: 319–335. (In Roumanian).
Caloianu-Iordachel, M. 1966. Characteristic formation of the digestive tract in Acipenseridae in comparison with other lower vertebrates. Hidrobiologia 7: 81–94. (In Roumanian).
Carr, W. E. S. 1982. Chemical stimulation of feeding behavior. pp. 259–273. In: T. J. Hara (ed.) Chemoreception of Fishes, Vol. 8, Elsevier Scientific Publ., New York.
Charlon, N. & P. Williot. 1978. Rapport sur l'elevage des esturgeon en Union Sovietique. Ministere de l'Agriculture, CTGREF-INRA: 42–45.
Cowey, C. B. & J. R. Sargent. 1979. Nutrition. pp. 1–70. In: W. S. Hoar, D. J. Randall & J. R. Brett (ed.) Fish Physiology, Vol. 8, Academic Press, New York.
Detlaf, T. A., A. S. Ginzburg & O. I. Schmal'gauzen. 1981. Development of the sturgeon fishes. Nauka Press, Moscow. 224 pp. (In Russian).
Fange, R. & D. Grove. 1979. Digestion. pp. 162–260. In: W. S. Hoar, D. J. Randall & J. R. Brett (ed.) Fish Physiology, Vol. 8, Academic Press, New York.
Golovanenko, L. F. 1964. The physiological condition of the young sturgeon reared on different feeds. Izv. Gos. Nauchno-Issled. Inst. Ozern. Rechn. Ryb. Khoz. 57: 235–241. (In Russian).
Gordienko, O. L., R. V. Afonich & E. V. Soldatova. 1970. The rearing of the young of the sturgeon fishes on artificial foods in tanks. Trudy Vses. Nauchno-Issled. Inst. Morsk. Rybn. Khoz. Okeanogr. 74: 7–36. (In Russian).
Halver, J. E. 1972. Fish nutrition. Academic Press, New York. 714 pp.
Hara, T. J. 1982. Chemoreception in fishes. Elsevier Scientific Publ., New York. 295 pp.
Hopkins, C. S. 1895. On the enteron of American ganoids. J. Morph. 11: 411–422.
Jorgenson, J. M., A. Flock & J. Wersall. 1967. The Lorenzian ampullae of Polyodon spathula. Z. Zellforsch. 130: 362–372.
Korzhuev, P. A. & L. B. Sharkova, 1967. Digestion characteristics of Caspian sturgeon. pp. 326–330. In: G.S. Karzinkin (ed.) Metabolism and Biochemistry of Fishes, Nauko Press, Moscow. (In Russian).
Krayushkina, L. S. 1957. The histology of the digestive system of sturgeon larvae at different developmental stages. Dokl. Akad. Nauk. SSSR 177: 966–968. (In Russian).
Lee, R. F., J. Hirota & A. M. Barnett. 1971. Distribution and importance of wax esters in marine copepods and other zooplankton. Deep-Sea Res. 18: 1147–1165.
Macallum, A. B. 1886. The alimentary canal and pancreas of Acipenser, Amia, and Lepidosteus. J. Anat. Physiol. 20: 604–636.
Magid, A. M. A. 1975. The epithelium of the gastrointestinal tract of Polypterus senegalus (Pisces: Brachiopterygii). J. Morph. 146: 447–456.
Milstein, V. V. 1972. Sturgeon culture. Pishch. Prom., Moscow 129 pp (In Russian).
Monaco, G., R. K. Buddington & S. I. Doroshov. 1981. Growth of white sturgeon under hatchery conditions. Proc. 12th Anna. Meet. World Maricult. Soc. 12: 113–121.
Neumayer, L. 1930. Die Entwicklung des Darms von Acipenser. Acta Zool. 11: 1–114.
Norris, H. W. 1925. Observations upon the peripheral distribution of the cranial nerves of certain ganoid fishes (Amia, Lepidosteus, Polyodon, Scaphyrhynchus, and Acipenser). J. Comp. Neurol. 39: 345–416.
Palmer, T. N. & B. E. Ryman. 1972. Studies on oral glucose intolerance in fish. J. Fish Biol. 4: 311–319.
Patton, J. S., J. C. Nevenzel & A. A. Benson. 1975. Specificity of digestive lipases in hydrolysis of wax esters and triglycerides studies in anchovy and other selected fish. Lipids 10: 575–583.
Romanycheva, O. D. 1976. The modern condition of the development of the marine sturgeon culture for commercial purposes and its perspectives. Proc. 5th Japan-Soviet Joint Symp. Aquacult., Tokai University, Tokyo: 353–365.
Sbikin, Yu. N. 1974. Age related changes in the role of vision in the feeding of various fish. J. Ichthyol. 14: 133–138.
Scherer, E. & S. Nowak. 1973. An apparatus for recording avoidance movements of fish. J. Fish. Res. Board. Can. 30: 1954–1956.
Schmal'gauzen, O. I. 1972. Effects of phenol on development of the prolarvae of acipenserid fish III. The digestive system. Sov. J. Dev. Biol. 3: 407–413.
Smit, H. 1961. Gastric secretion in the lower vertebrates and birds. pp. 2791–2805. In: C. F. Code (ed.) Handbook of Physiology, Section 6, Alimentary Canal, Vol. 6, Chapter 135, American Physiological Soc., Washington D. C.
Stroband, H. W. J., H. v.d. Meer & L. P. M. Timmermans. 1979. Regional functional differentiation in the gut of the grasscarp. Ctenopharyngodon idella (Val.). Histochem. 64: 235–249.
Suzuki, K. & G. Nishi. 1976. Rearing of sturgeons in Japan. Proc. 5th Japan-Soviet Joint Symp. on Aquacult., Tokai University, Tokyo: 379–393.
Tanaka, M. 1971. Studies on the structure and function of the digestive system in teleost larvae-III. Development of the digestive system during post-larval stages. Jap. J. Ichthyol. 18: 164–174.
Teeter, J. H., R. B. Szamier & M. V. L. Bennett. 1980. Ampullary electroreceptors in the sturgeon Scaphyrhynchus platorhyncus (Rafinesque). J. Comp. Physiol. 138: 213–223.
Tessier, A. J. & L. E. Goulden. 1982. Estimating food limitations in cladoceran populations. Limnol. Oceanogr. 27: 707–717.
Weisel, G. F. 1973. Anatomy and histology of the digestive organs of the paddlefish (Polyodon spathula). J. Morph. 140: 243–256.
Weisel, G. F. 1979. Histology of the feeding and digestive organs of the shovelnose sturgeon, Scaphyrhynchus platorhyncus. Copeia 1979: 518–525.
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Buddington, R.K., Christofferson, J.P. Digestive and feeding characteristics of the chondrosteans. Environ Biol Fish 14, 31–41 (1985). https://doi.org/10.1007/BF00001574
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DOI: https://doi.org/10.1007/BF00001574