Journals / Turkish Journal of Veterinary and Animal Sciences / 2005 / Cilt: 29 - Sayı: 3

Evaluation of the Photocopy Method for Counting Puntius conchonius’s Eggs

Pages
685–689
Publication Date
2005-03-01
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The advantage of the photocopy method is that it is a relatively fast method without significant loss in accuracy and it is cheaper than the other currently used methods.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The photocopy technique was developed to count fish eggs.
📊
Key Findings & Data:Egg numbers estimated by this technique were significantly correlated with those estimated by actual counting (r = 0.999; P < 0.05).
💡
Conclusion & Impact:The advantage of the photocopy method is that it is a relatively fast method without significant loss in accuracy and it is cheaper than the other currently used methods.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Egg number · photocopy technique · rosy barb

Abstract

The photocopy technique was developed to count fish eggs. Fecundity of the rosy barb Puntius conchonius was determined by both actual counts and the photocopy method. Egg stripping and fertilisation were performed manually. After fertilisation, water-hardened eggs were photocopied. White circles were counted and recorded as viable eggs and dark dots counted as dead eggs. Egg numbers estimated by this technique were significantly correlated with those estimated by actual counting (r = 0.999; P < 0.05). The advantage of the photocopy method is that it is a relatively fast method without significant loss in accuracy and it is cheaper than the other currently used methods.

Özet

The photocopy technique was developed to count fish eggs. Fecundity of the rosy barb Puntius conchonius was determined by both actual counts and the photocopy method. Egg stripping and fertilisation were performed manually. After fertilisation, water-hardened eggs were photocopied. White circles were counted and recorded as viable eggs and dark dots counted as dead eggs. Egg numbers estimated by this technique were significantly correlated with those estimated by actual counting (r = 0.999; P < 0.05). The advantage of the photocopy method is that it is a relatively fast method without significant loss in accuracy and it is cheaper than the other currently used methods.

🔖

Cite This Article

ÇEK, Ş. (2005). Evaluation of the Photocopy Method for Counting Puntius conchonius’s Eggs. Turkish Journal of Veterinary and Animal Sciences, Cilt: 29 - Sayı: 3, 685–689. https://ajindex.com/articles/141328

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (12)

  1. Khulbe, R.D., Joshi, C., Bisth, G.S.: Fungal diseases of fish in Nanak Sagar, Naini Tal, India. Mycopathologia, 1995; 130: 71- 74. Varadi, I., Hidas, A., Varkony, E., Horvath, L.: Interesting phenomena in hybridisation of carp, Cyprinus carpio and rosy barb, Barbus conshonius. In Carp-proceedings of the second aquaculture sponsored symposium held in Budapest, Hungary. Billard, R., and Gall, G.A.E. (eds.), 1995; 1: 211-214.
  2. Pyanov, A.I.: Fish learning in response to trawl fishing. In: Wardle, C.S., and Hollingworth, C.E. (eds.) Fish behaviour in relation to fishing operations, 1995; 196: 12-26.
  3. Simpson, A.C.: The fecundity of the plaice. Fishery Invest. Lond., Ser. 2, 1951; 17: 1-27.
  4. Bagenal, T.B., Braum, E.: Eggs and early life history. In: IBP handbook. Methods for assessment of fish production in fresh waters, T.M Bagenal (ed.), 1978; 3: 165-201.
  5. Murdoch, R.C., Singleton, R.J., Grange, K.R.: Rapid shipboard identification and enumeration of pelagic marine fish eggs by a simple photographic technique. New Zeal. J. Mar. Fresh. Res., 1990; 24: 137-140.
  6. Irwin, E.R., Bettoli, P.W.: Use of an electronic bacterial colony counter to estimate fecundity. Prog. Fish Cult., 1991; 53: 133- 134. Arnold, T.W., Thompson, J.E., Ankney, C.D.: Using post- ovulatory follicles to determine laying histories of American coots: Implications for nutrient-reserve studies. J. Field Ornithol., 1997; 68: 19-25.
  7. Herrera, M., Hernando, J.A., Delgado, F.C., Bellido, M.: Age, growth, and reproduction of the barbel, Barbus sclateri (Gunther, 1968), in a first-order stream in southern Spain. J. Fish Biol, 1988; 33: 371-381.
  8. Musonda, F.F.: Relationship of fecundity and body size of Lates stappersii in central lake Tanganyika, East Africa. Report Dept. Fisheries. Zambia, 1999; 1-4.
  9. Gundersen, A.C., Kjesbu, O.S., Nedreaas, K.H., Stene, A.: Fecundity of Northeast Arctic Greenland halibut (Rainhardtius hippoglossoides). J. Northw. Atl. Fish. Sci., 1999; 25: 29-36.
  10. Hinshaw, J.M., Thompson, S.L.: Trout production handling eggs and fry. North Carolina State University, Southern Regional Aquaculture Centre publications 2000; No.220. Witthames, P.R., Walker, M.G.: An automated method for counting and sizing fish eggs. J. Fish Biol., 1987; 30: 225-235.
  11. Joyce, T.L., Ramson, K.: Accuracy and precision of counting eyed eggs with an electronic fish counter. Prog. Fish Cult., 1988; 2: 113-115.
  12. Isaac-Nahum, V.J., Cardoso, R. de D., Servo, G., Rossi- Wongtschowski, C.L. del B.: Aspects of the spawning biol