Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2013
Volume 16
Issue 3
Topic:
Fisheries
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Korzelecka-Orkisz A. , Bonisławska M. , Tański A. , Smaruj I. , Szulc J. , Formicki K. 2013. EMBRYONIC DEVELOPMENT OF ASPIUS ASPIUS L. (ACTINOPTERYGII: CYPRINIFORMES: CYPRINIDAE), EJPAU 16(3), #09.
Available Online: http://www.ejpau.media.pl/volume16/issue3/abs-09.html

EMBRYONIC DEVELOPMENT OF ASPIUS ASPIUS L. (ACTINOPTERYGII: CYPRINIFORMES: CYPRINIDAE)

Agata Korzelecka-Orkisz1, Małgorzata Bonisławska2, Adam Tański1, Izabela Smaruj1, Joanna Szulc1, Krzysztof Formicki3
1 Division of Hydrobiology, Ichthyology and Biotechnology of Biotechnology of Reproduction, West Pomeranian University of Technology in Szczecin, Szczecin, Poland
2 Department of Aquatic Sozology, West Pomeranian University of Technology in Szczecin, Szczecin, Poland
3 Division of Hydrobiology, Ichthyology and Biotechnology of Biotechnology of Reproduction,
West Pomeranian University of Technology in Szczecin, Szczecin, Poland

 

ABSTRACT

Fertilized eggs asp (Aspius aspius L.) were incubated in water under constant temperature of 10 ±0.2°C. Egg membranes were observed under a scanning electron microscope. Images of the eggs and newly hatched larvae were recorded, measured and analyzed. Asp eggs are surrounded by 12.1 µm thick egg membrane. On the outside, the membrane comprises of club-shaped formations connected together in a network, they are weakly joint with the deeper layer of the membrane, hence when the egg is detached from the substrate this layer becomes detached from the parent structures.


During embryogenesis, which lasted 20 days, it was observed that: diameter of hydrated egg is 2.03 mm, while the diameter of the yolk sphere is 1.37 mm, volume of the egg is 4.36 ±0.19 mm3 and yolk sphere volume 1.33 ±0.14 mm3. The blastodisc, and later the embryos, is situated in side position in the egg; the first single movements of the trunk appeared before 40% of the period of embryonic development had elapsed. The greatest embryo activity was observed after ½ of the embryogenesis. Start of operation of the heart primordia, and later heart caused a drop in somatic activity of the embryo. Newly hatched asps measured 7.43 ±0.27 mm and were equipped with double-chamber yolk sac of volume 0.72 ±0.13 mm3. Pigment of hatched individuals could be seen in the eyes (intense) and on the body.

Key words: fisheries, asp (Aspius aspius L.), embryonic development, egg membranes.

Agata Korzelecka-Orkisz
Division of Hydrobiology, Ichthyology and Biotechnology of Biotechnology of Reproduction,
West Pomeranian University of Technology in Szczecin, Szczecin, Poland
K. Królewicza 4
71-550 Szczecin
Poland
email: Agata.Korzelecka-Orkisz@zut.edu.pl

Małgorzata Bonisławska
Department of Aquatic Sozology, West Pomeranian University of Technology in Szczecin, Szczecin, Poland
Kazimierza Królewicza 4B
71-550 Szczecin
Poland
email: Malgorzata.Bonislawska@zut.edu.pl

Adam Tański
Division of Hydrobiology, Ichthyology and Biotechnology of Biotechnology of Reproduction,
West Pomeranian University of Technology in Szczecin, Szczecin, Poland
K. Królewicza 4
71-550 Szczecin
Poland
email: adam.tanski@zut.edu.pl

Izabela Smaruj
Division of Hydrobiology, Ichthyology and Biotechnology of Biotechnology of Reproduction,
West Pomeranian University of Technology in Szczecin, Szczecin, Poland
K. Królewicza 4
71-550 Szczecin
Poland

Joanna Szulc
Division of Hydrobiology, Ichthyology and Biotechnology of Biotechnology of Reproduction,
West Pomeranian University of Technology in Szczecin, Szczecin, Poland
K. Królewicza 4
71-550 Szczecin
Poland

Krzysztof Formicki
Division of Hydrobiology, Ichthyology and Biotechnology of Biotechnology of Reproduction,

West Pomeranian University of Technology in Szczecin, Szczecin, Poland
K. Królewicza 4
71-550 Szczecin
Poland
email: Krzysztof.Formicki@zut.edu.pl

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.

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