Pubblicazione scientifica

Deterred but not preferred: Predation by native whelk Reishia clavigera on invasive bivalves

FILONE TECNOLOGICO	TEMA
produzione e raccolta

RIASSUNTO

This study tested the potential bio-control role of the common native predatory whelk Reishia clavigera on the invasive bivalves Xenostrobus securis and Mytilopsis sallei and the native Brachidontes variabilis in Hong Kong. Predation experiments were conducted in the laboratory under salinity levels of 22‰ and 32‰, as well as under field conditions. The results indicate that the invasive bivalves are more vulnerable to predation than the native bivalve in environments with high salinity, whereas environments with moderately low salinity (22‰) may reduce predation. Because R. clavigera did not show clear prey preference, the low survival of the invasive species might be due to a lack of effective anti-predatory defenses under experimental conditions. These findings could explain the high abundance of the invasive bivalves in disturbed environments in Hong Kong where predation appears to be lower.

DATA

Data di pubblicazione: 16/05/2018

AUTORI

ASTUDILLO JUAN C
BONEBRAKE TIMOTHY C
LEUNG KENNETH M Y

ENTE DI AFFERENZA

SWIRE INST MARINE SCIENCE FACULTY OF SCIENCE UNIV HONG KONG SHEK O HONG KONG CHINA
SCHOOL OF BIOLOGICAL SCIENCES UNIV HONG KONG HONG KONG CHINA
STATE KEY LAB IN MARINE POLLUTION CITY UNIV HONG KONG KOWLOON HONG KONG CHINA
UNIV CALIFORNIA US

RIVISTA

PLoS ONE, 13(5), e0196578

IMPACT FACTOR

2,870

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