J 2022

Adult Triops cancriformis (Pancrustacea: Notostraca) mediates the hatching rate of its resting eggs

DEVÁNOVÁ, Alžbeta, Jan SYCHRA, Jindřiška BOJKOVÁ and Michal HORSÁK

Basic information

Original name

Adult Triops cancriformis (Pancrustacea: Notostraca) mediates the hatching rate of its resting eggs

Authors

DEVÁNOVÁ, Alžbeta (703 Slovakia, guarantor, belonging to the institution), Jan SYCHRA (203 Czech Republic, belonging to the institution), Jindřiška BOJKOVÁ (203 Czech Republic, belonging to the institution) and Michal HORSÁK (203 Czech Republic, belonging to the institution)

Edition

Hydrobiologia, Springer, 2022, 0018-8158

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10617 Marine biology, freshwater biology, limnology

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.600

RIV identification code

RIV/00216224:14310/22:00125792

Organization unit

Faculty of Science

UT WoS

000769868300001

Keywords in English

Cannibalism; Chemical communication; Conspecific cues; Egg predation; Hatching stimuli; Large branchiopods

Tags

Tags

International impact, Reviewed
Změněno: 3/6/2022 15:01, Mgr. Marie Šípková, DiS.

Abstract

V originále

The resting eggs of large branchiopods do not hatch all at once during a hydroperiod; instead, a fraction of the eggs are left dormant to cope with unstable conditions in temporary wetlands. In order to maximize fitness, the fraction that terminates diapause is modified by signals indicating habitat suitability and biotic interactions. Here, in a laboratory experiment, we investigate the effect of conspecific cues on the hatching time and hatching rate of resting eggs from Triops cancriformis (Bosc, 1801). While hatching time was not significantly affected by conspecific cues, the effect of these cues on hatching rate was highly significant, with hatching rate increasing with increasing concentration of conspecific cues. This indicates that alongside environmental factors, conspecific cues also have the power to terminate the diapause of Triops resting eggs. In addition to indicating suitable conditions, such cues could also act as a mechanism for reducing egg cannibalism by adults, which are predominantly benthic feeders. As such, our results suggest that the response of large branchiopod encysted embryos to conspecific chemical cues could have evolved as a response to the feeding strategy of their adult stages; however, more research will be needed to fully understand the mechanism(s) behind this response.

Links

GA20-17305S, research and development project
Name: Klimaticky podmíněná homogenizace vodních bezobratlých testovaná na třech modelových systémech a historických datech
Investor: Czech Science Foundation