Invasive gibel carp (Carassius gibelio) outperforms threatened native crucian carp (Carassius carassius) in growth rate and effectiveness of resource use: Field and experimental evidence.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F22%3A00569052" target="_blank" >RIV/60077344:_____/22:00569052 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/22:43905979 RIV/60460709:41210/22:91815

Result on the web

<a href="https://doi.org/10.1002/aqc.3894" target="_blank" >https://doi.org/10.1002/aqc.3894</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/aqc.3894" target="_blank" >10.1002/aqc.3894</a>

Result language

angličtina

Original language name

Invasive gibel carp (Carassius gibelio) outperforms threatened native crucian carp (Carassius carassius) in growth rate and effectiveness of resource use: Field and experimental evidence.

Original language description

Invasive alien species pose a serious threat to biodiversity. They frequently compete with native species for resources, resulting in the decline or extinction of the latter. Native crucian carp (Carassius carassius) faces a severe decline in European waters and has become critically endangered in many European countries. Possible ecological mechanisms of the rapid decline of the crucian carp attributable to resource competition with the invasive Carassius gibelio were identified. A field study was combined with a controlled experiment to compare (i) standard length-weight relationships and growth patterns in 12 Czech and Swedish ponds in which the species occur alone or in syntopy, and (ii) individual growth and food utilization under the same conditions. The growth increment of C. gibelio was greater than that of C. carassius under the same experimental conditions (mean increase in weight: C. gibelio, 21.7%., C. carassius, 5.2%., increase in standard length: C. gibelio, 6.3%., C. carassius, 2.0%), suggesting that C. gibelio uses food resources more efficiently than C. carassius does. Moreover, larger C. carassius individuals did not grow, whereas growth of C. gibelio individuals was largely independent of standard length. Field data suggested that C. gibelio grew faster and were heavier than C. carassius of the same standard length in four Czech ponds where they occurred together. Individual weight-at-length declined in C. carassius in the presence of C. gibelio, especially in more dense populations, whereas the weight-at-length of C. gibelio remained similar. Taken together, these results imply that C. gibelio has better competitive abilities for food than C. carassius and provide novel support for the long-standing hypothesis that the introduction and spread of C. gibelio causes the decline of C. carassius in European waters.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10618 - Ecology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Aquatic Conservation Marine and Freshwater Ecosystems

ISSN

1052-7613

e-ISSN

1099-0755

Volume of the periodical

32

Issue of the periodical within the volume

12

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

1901-1912

UT code for WoS article

000870106800001

EID of the result in the Scopus database

2-s2.0-85140047977