Number of the records: 1

Age structure of annual Nothobranchius fishes in Mozambique: is there a hatching synchrony?

SYSNO ASEP	0358428
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Age structure of annual Nothobranchius fishes in Mozambique: is there a hatching synchrony?
Author(s)	Polačik, Matej (UBO-W)_{RID, SAI, ORCID} Donner, M. T. (DE) Reichard, Martin (UBO-W)_{RID, ORCID, SAI, SAI}
Number of authors	3
Source Title	Journal of Fish Biology. - : Wiley - ISSN 0022-1112 Roč. 78, č. 3 (2011), s. 796-809
Number of pages	14 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	age validation ; ecology ; killifishes ; south-east Africa ; temporary pools
Subject RIV	EG - Zoology
R&D Projects	GA206/09/0815 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z60930519 - UBO-W (2005-2011)
UT WOS	000287920800008
EID SCOPUS	79952248037
DOI	10.1111/j.1095-8649.2010.02893.x
Annotation	In this study, the age structures of populations of African annual Nothobranchius fishes are examined for the first time. Daily increments in sagittal otoliths of N. furzeri, N. kadleci, N. orthonotus and N. rachovii were used for age determination. Four hypotheses were tested: 1) timing of hatching is consistent with the calendar onset of the rainy season, 2) hatching is synchronized within a population in a pool, 3) there is a difference in hatching date between geographical regions differing in mean total annual precipitation, and 4) sympatric Nothobranchius species hatch at the same time. The results show that daily increment analysis represents an applicable method for age determination in Nothobranchius spp. Timing of hatching was not consistent with the calendar onset of the rainy season. Hatching dates were relatively uniform in some populations, whilst there was considerable variability in others.
Workplace	Institute of Vertebrate Biology
Contact	Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
Year of Publishing	2012

Number of the records: 1