Bulletin of the Sea Fisheries Institute 2 (156) 2002 - CEEMaR

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50 K. FORMICKI, A. KORZELECKA-ORKISZ, M. BONIS£AWSKA, A. TAÑSKI, W. WAWRZYNIAK and A. WINNICKI – the relatively long hatching period of larvae from eggs of the same batch, lasted 47 h (614 h°); – the larvae which are relatively long when they hatch are basically ready for active, independent life in the water (Fig. 2m). a b c 0.2 mm d e f g h i j k l
Morphomechanic changes during embryogenesis ..... 51 m 0.5 mm Fig. 2. Embryonic development in herring: a, b, c – formation of the perivitelline space; d – reception mount is formed – 1 h 10 min (15 h°); e – egg swelling process ends, the first cleavages appear (two blastomeres) – side view – 2 h (25 h°); f – beginning of the second cleavage – 2 h 30 min (33 h°); g – eight blastomere stage – 3 h 20 min (43 h°); h – fine cell morula – 6 h (80 h°); i – large cell morula – 10 h 30 min (130 h°); j – gastrula 2/3–3/4 – 14 h (180 h°); k – head is formed – 31 h (406 h°); l – clear metamerism of the embryo’s body, lens visible in eye – 46 h 30 min (600 h°); m – herring larvae directly after hatching – 165 h (2150 h°). 0.2 mm Fig. 3. Gelatinous substance covering the egg membrane which allows the eggs to attach to the substrate and to each other to form aggregations.
Page 1 and 2: ISSN 1429-2335 Bulletin of the Sea
Page 3 and 4: 4 WIES£AW BLADY, JAN NETZEL and JA
Page 9 and 10: 20 23 26 29 32 35 38 41 44 47 50 53
Page 11 and 12: 12 WIES£AW BLADY, JAN NETZEL and J
Page 13 and 14: 14 WIES£AW BLADY, JAN NETZEL and J
Page 15 and 16: 16 JÓZEF SOSIÑSKI and KORDIAN TRE
Page 33 and 34: 34 VIDA ŽILIUKIENE The fish fauna
Page 35 and 36: 36 VIDA ŽILIUKIENE Table 1. The ex
Page 37 and 38: 38 VIDA ŽILIUKIENE 1997.06.03 1999
Page 39 and 40: 40 VIDA ŽILIUKIENE Frequency [%] F
Page 41 and 42: 42 VIDA ŽILIUKIENE REFERENCES Anne
Page 43 and 44: BULLETIN OF THE SEA FISHERIES INSTI
Page 45 and 46: Morphomechanic changes during embry
Page 47: Morphomechanic changes during embry
Page 55 and 56: BULLETIN OF THE SEA FISHERIES INSTI
Page 57 and 58: Variability of sprat peak spawning
Page 67 and 68: 70 JÓZEF SOSIÑSKI AND ANDRZEJ KOM
Page 77 and 78: WSKAZÓWKI DLA AUTORÓW INFORMACJE

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