Distribution of herbivorous fish is frozen by low temperature?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F16%3A00459603" target="_blank" >RIV/60077344:_____/16:00459603 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/16:43891364

Result on the web

<a href="http://dx.doi.org/10.1038/srep39600" target="_blank" >http://dx.doi.org/10.1038/srep39600</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/srep39600" target="_blank" >10.1038/srep39600</a>

Result language

angličtina

Original language name

Distribution of herbivorous fish is frozen by low temperature?

Original language description

The number of herbivores in populations of ectothermic vertebrates decreases with increasing latitude. At higher latitudes, fish consuming plant matter are exclusively omnivorous. We assess whether omnivorous fish readily shift to herbivory or whether animal prey is typically preferred. We address temperature as the key factor causing their absence at higher latitudes and discuss the potential poleward dispersion caused by climate changes. A controlled experiment illustrates that rudd (Scardinius erythrophthalmus) readily utilize plant matter at water temperatures above 20 degrees C and avoid its consumption below 20 degrees C. Field data support these results, showing that plant matter dominates rudd diets during the summer and is absent during the spring. Utilizing cellulose requires the enzyme cellulase, which is produced by microorganisms growing at temperatures of 15-42 degrees C. Water temperatures at higher latitudes do not reach 15 degrees C year-round; at our latitude of 50 degrees N similar to 150 days/year. Hence, the species richness of omnivorous fish decreases dramatically above 55 degrees latitude. Our results provide support for the hypothesis that strict herbivorous specialists have developed only in the tropics. Temperatures below 15 degrees C, even for a short time period, inactivate cellulase and cause diet limitations for omnivorous fish. However, we may expect increases in herbivory at higher latitudes caused by climate change.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

EG - Zoology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

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Volume of the periodical

6

Issue of the periodical within the volume

December

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

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UT code for WoS article

000390267200001

EID of the result in the Scopus database

2-s2.0-85006988540