Active movement to coarse grained sediments by globally endangered freshwater pearl mussels (Margaritifera margaritifera)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00568285" target="_blank" >RIV/60077344:_____/23:00568285 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/23:43906533

Výsledek na webu

<a href="https://link.springer.com/content/pdf/10.1007/s10750-023-05138-1.pdf?pdf=button" target="_blank" >https://link.springer.com/content/pdf/10.1007/s10750-023-05138-1.pdf?pdf=button</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10750-023-05138-1" target="_blank" >10.1007/s10750-023-05138-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Active movement to coarse grained sediments by globally endangered freshwater pearl mussels (Margaritifera margaritifera)

Popis výsledku v původním jazyce

The freshwater pearl mussel Margaritifera margaritifera is an endangered bivalve which is usually regarded as sedentary, although individual movement has been observed both vertically and horizontally. Little is known about the causes and rates of mussel movement. The objective of this study was to test the effect of microhabitat characteristics on the horizontal movement distance and rates of freshwater pearl mussels. A total of 120 mussels (length range 40-59 mm) were marked individually with passive integrated transponder tags, placed in stream microhabitats differing in their sediment composition and monitored biweekly over a period of 10 weeks. Mussels situated in sand-dominated habitats had a significantly higher mean movement rate (3.2 +/- 4.2 cm/day, mean +/- SD) than mussels situated in gravel-dominated (1.9 +/- 2.7 cm/day) or stone-dominated habitats (1.8 +/- 3.2 cm/day). The direction of the movements appeared random, however, an emigration from sandy habitats was observed, probably to avoid dislodgment from these hydraulically unstable habitats. This study demonstrates that freshwater pearl mussels can actively emigrate from unsuitable microhabitats. Once suitable streams with respect to physical, chemical, and biological quality were identified, it is therefore only necessary to identify suitable mesohabitats (area of 10-30 m(2)) when reintroducing or relocating mussels.

Název v anglickém jazyce

Active movement to coarse grained sediments by globally endangered freshwater pearl mussels (Margaritifera margaritifera)

Popis výsledku anglicky

The freshwater pearl mussel Margaritifera margaritifera is an endangered bivalve which is usually regarded as sedentary, although individual movement has been observed both vertically and horizontally. Little is known about the causes and rates of mussel movement. The objective of this study was to test the effect of microhabitat characteristics on the horizontal movement distance and rates of freshwater pearl mussels. A total of 120 mussels (length range 40-59 mm) were marked individually with passive integrated transponder tags, placed in stream microhabitats differing in their sediment composition and monitored biweekly over a period of 10 weeks. Mussels situated in sand-dominated habitats had a significantly higher mean movement rate (3.2 +/- 4.2 cm/day, mean +/- SD) than mussels situated in gravel-dominated (1.9 +/- 2.7 cm/day) or stone-dominated habitats (1.8 +/- 3.2 cm/day). The direction of the movements appeared random, however, an emigration from sandy habitats was observed, probably to avoid dislodgment from these hydraulically unstable habitats. This study demonstrates that freshwater pearl mussels can actively emigrate from unsuitable microhabitats. Once suitable streams with respect to physical, chemical, and biological quality were identified, it is therefore only necessary to identify suitable mesohabitats (area of 10-30 m(2)) when reintroducing or relocating mussels.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10619 - Biodiversity conservation

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Hydrobiologia

ISSN

0018-8158

e-ISSN

1573-5117

Svazek periodika

850

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

985-999

Kód UT WoS článku

000912315200002

EID výsledku v databázi Scopus

2-s2.0-85146057978