J 2010

Age and growth in a newly established invasive population of topmouth gudgeon

ZAHORSKA, E., V. KOVAC and Stanislav KATINA

Basic information

Original name

Age and growth in a newly established invasive population of topmouth gudgeon

Authors

ZAHORSKA, E. (703 Slovakia), V. KOVAC (703 Slovakia, guarantor) and Stanislav KATINA (703 Slovakia, belonging to the institution)

Edition

Central European Journal of Biology, Springer Versita, 2010, 1895-104X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10103 Statistics and probability

Country of publisher

Poland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 0.685

RIV identification code

RIV/00216224:14310/10:00061095

Organization unit

Faculty of Science

UT WoS

000275141000012

Keywords in English

Pseudorasbora parva; Biological invasions; Life-history variability

Tags

Tags

International impact, Reviewed
Změněno: 12/4/2013 10:47, Ing. Andrea Mikešková

Abstract

V originále

Specimens of invasive topmouth gudgeon, Pseudorasbora parva, from Šúr Pond (Bratislava, Slovakia) were examined to assess age and growth, and to determine whether this recently-established invasive population employs a less specialized ontogenetic trajectory than the specialized form typical of native and/or long-time established populations. Samples were collected in October 2004 (n=143). Standard length (SL) ranged from 18.16 mm to 67.57 mm (mean 32.56 mm), and eviscerated body weight ranged from 0.10 to 5.02 g (mean 0.63 g). Scale caudal diameter ranged from 0.52 to 2.42 mm (mean 1.08 mm). SL at which the scales started to form was estimated to be 1.58 mm. The population was represented with 5 age groups, from 0+ to 4+. Relative to other populations for which comparable data are available the recently-established population of topmouth gudgeon was found to mature at smaller size and at a younger age compared to native and/or long-time established populations (all specimens bigger than 25.0 mm SL, and 94% of specimens from the age group I were already mature).

Links

CZ.1.07/2.2.00/15.0203, interní kód MU
Name: Univerzitní výuka matematiky v měnícím se světě (Acronym: Univerzitní výuka matematiky)
Investor: Ministry of Education, Youth and Sports of the CR, 2.2 Higher education