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2011 | 41 | 1 |

Tytuł artykułu

Heads or tails - fish hatching

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Background. Hatching is a process in which the embryo emerges from the egg by breaking the protective egg shell. Our preliminary observations indicate that hatching duration and time-distribution may vary among and within the fish species, and that some embryos fail to hatch or hatch incompletely, probably due to the “incorrect” hatching way. So the aim of this study was a detailed description of hatching of three fish species: common carp, barbel, and rainbow trout. Materials and methods. Three species of fish: common carp, Cyprinus carpio; barbel, Barbus barbus; and rainbow trout, Oncorhynchus mykiss; were examined for their hatching modes. The mode and the time of hatching of each larva were noted. Newly hatched larvae were counted and examined. The malformations were classified. Observations of embryos and larvae were done using the stereoscopic microscope Nikon connected to the computer with the MultiScan 8.4 image analysis system; the hatching embryos and larvae were photographed. Results. Three modes of hatching were observed, two of them similar in all three fish species. Some fish started hatching tail first from the egg shell, others head first or—specifically for barbel—yolk sac first. The data obtained in the present study showed that tail hatching was the most successful in all fish species, and shown by most good quality larvae. The majority of tail-hatched larvae developed normally and were viable, and only some of them were deformed and showed slight morphological defects, mainly single vertebral malformations that in most cases were negligible. Head hatching was the precarious in carp, and in all fish species less common and successful comparing to the tail hatching. Conclusion. The hatching mode could be used as another good parameter for estimation of quality of eggs and larvae.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

41

Numer

1

Opis fizyczny

p.13-17,fig.,ref.

Twórcy

autor
  • Department of Animal Physiology, University of Natural Sciences and Humanities in Siedlce, Poland
autor

Bibliografia

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  • Bonnet E., Fostier A., Bobe J. 2007. Characterization of rainbow trout egg quality: A case study using four different breeding protocols, with emphasis on the incidence of embryonic malformations. Theriogenology 67 (4): 786–794. DOI: 10.1016/j.theriogenology.2006.10.008.
  • DiMichelle L., Tylor M.H. 1981. The mechanism of hatching in Fundulus heteroclitus: development and physiology. Journal of Experimental Zoology 217 (1): 73–79. DOI: 10.1002/jez.1402170108.
  • Hagenmaier H.E. 1974. The hatching process in fish embryos. V. Characterization of the hatching protease (chorionase) from the perivitelline fluid of the rainbow trout, Salmo gairdneri Rich. as metalloenzyme. Wilhelm Roux’s Archives of Developmental Biology 175 (2): 157–162. DOI: 10.1007/BF00574299.
  • Hiroi J., Maruyama K., Kawazu K., Kaneko T., Ohtani-Kaneko R., Yasumasu S. 2004. Structure and developmental expression of hatching enzyme genes of the Japanese eel Anguilla japonica: An aspect of the evolution of fish hatching enzyme gene. Development Genes and Evolution 214 (4): 176–184. DOI: 10.1007/s00427-004-0397-1.
  • Jezierska B., Ługowska K., Witeska M., Sarnowski P. 2000. Malformations of newly hatched common carp larvae. Electronic Journal of Polish Agricultural Universities; Fisheries 3 (2): #01. http://www.ejpau.media.pl/volume3/issue2/fisheries/art-01.html.
  • Korwin-Kossakowski M. 1998. Porównanie przebiegu wykluwania u larw karpia (Cyprinus carpio L.) i lina (Tinca tinca L.) [Comparison of hatching in common carp Cyprinus carpio L. and tench Tinca tinca L.] Pp. 127–129. In: Waluga J. (ed.) Wylęgarnia 1997–1998. [Hatchery 1997–1998.]Wydawnictwo Instytutu Rybactwa Śródlądowego, Olsztyn. [In Polish.]
  • Krejči R., Palíková M. 2006. Potassium dichromate as a reference substance for embryonic tests of toxicity in common carp (Cyprinus carpio L.). Acta Veterinaria Brno 75 (2): 259–263. DOI: 10.2754/avb200675020259.
  • Ługowska K. 2007. The effect of cadmium and cadmium/copper mixture during the embryonic development on deformed common carp larvae. Electronic Journal of Polish Agricultural Universities; Fisheries 10 (4): #11. http://www.ejpau.media.pl/volume10/issue4/art-11.html.
  • Ługowska K.,Witeska M. 2004. The effect of copper exposure during embryonic development on deformations of newly hatched common carp larvae, and further consequences. Electronic Journal of Polish Agricultural Universities; Fisheries 7 (2): #01. http://www.ejpau.media.pl/volume7/issue2/fisheries/art-01.html.
  • Ostaszewska T. 1998. Development of unicellular hatching glands in carp (Cyprinus carpio L.). Annals of Warsaw agricultural University; Animal Science 34 (1): 19–28.
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  • Rosenthal H., Iwai T. 1979. Hatching glands in herring embryos. Marine Ecology—Progress Series 1 (1): 123–127.
  • Shi Z.-P., Fan T.-J., Cong R.-S., Wang X.-F., Sun W.-J., Yang L.-L. 2006. Purification and characterization of hatching enzyme from flounder Paralichthys olivaceus. Fish Physiology and Biochemistry 32 (1): 35–42. DOI: 10.1007/s10695-005-5250-6.
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  • Yamagami K. 1975. Relationship between two kinds of hatching enzymes in the hatching liquid of the medaka, Oryzias latipes. Journal of Experimental Zoology 192 (1): 127–132. DOI: 10.1002/jez.1401920114.

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Bibliografia

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