Environmental Emergency: Why Did the False Mussel Mytilopsis sallei Not Invade Darwin Harbour, Australia?

Malacologia ◽  
2019 ◽  
Vol 62 (2) ◽  
pp. 247
Keyword(s):  
Water ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1692 ◽  
Author(s):  
Paolo Magni ◽  
Serena Como ◽  
Maria Flavia Gravina ◽  
Donghui Guo ◽  
Chao Li ◽  
...  

A comprehensive set of physicochemical variables in near-bottom water and surface sediments, as well as the soft-bottom macrozoobenthic assemblages were investigated at six sites across the Yundang Lagoon (Southeast China) in November 2012. This lagoon was severely damaged in the 1970s due to domestic and industrial pollution and land reclamation and underwent a massive restoration effort over the past 30 years. Our objectives were to: (1) assess the current trophic and environmental condition of the lagoon; (2) investigate the pattern of spatial variation in the macrozoobenthic assemblages; and (3) assess the benthic recovery in relation to the main environmental gradients and the presence of invasive alien species. Nutrient, chlorophyll-a, biological oxygen demand (BOD5), chemical oxygen demand (CODMn), and total organic carbon (TOC) concentrations were lower than those reported in previous decades, yet organically-enriched conditions occurred at an inner site. From azoic conditions in the 1980s and a few benthic species reported prior to this study, we found a significant increase in benthic diversity with 43 species heterogeneously distributed across the lagoon. The invasive bivalve Mytilopsis sallei was the dominant species, which was associated with the richest benthic assemblage. However, M. sallei is a pest species, and its spatiotemporal distribution should be carefully monitored. These results highlight the central role of the macrozoobenthos in providing important ecological information on the current status of the Yundang Lagoon and as an effective biological tool to follow the recovery’s progress and the future evolution of this highly valued ecosystem.


2017 ◽  
Vol 13 (6) ◽  
pp. 645-658 ◽  
Author(s):  
Jian He ◽  
Jian Fei Qi ◽  
Yan Qiu Huang ◽  
Yan Qing Sheng ◽  
Pei Su ◽  
...  

2018 ◽  
Vol 35 (1-2) ◽  
pp. 167-176
Author(s):  
Chin Sing Lim ◽  
Zuliza Haji Jolkifli ◽  
Alina Jair ◽  
Noorizan Karim ◽  
Ranimah A. Wahab ◽  
...  

Limited knowledge of native marine biodiversity hinders effective biodiversity management to safeguard South and Southeast Asia’s marine coastal environment against the threat of invasive species transfer through shipping. In particular, sessile marine biofouling organisms in South East Asian ports are poorly known. Through the support of the ASEAN-India Cooperation Project on the Extent of Transfer of Alien Invasive Organisms in South/South East Asia Region by Shipping, a coordinated effort to examine diversity of biofouling organisms in major port areas in Southeast Asia and India was made using polyvinylchloride (PVC) panels as recruitment surfaces in a static immersion study for a period of 12 months. Not surprisingly, the study revealed that fouling patterns differed between ports possibly as a result of dissimilar hydrographic conditions. However, there were also underlying similarities that reflected a regional uniformity in the composition of fouling communities. At the same time, the alien Caribbean bivalve Mytilopsis sallei was detected in Manila Bay (Philippines), Songkhla Port (Thailand) and Singapore. This is a first simultaneous biofouling survey involving scientists and government stakeholders from India and ASEAN nations of Brunei Darussalam, Indonesia, Lao PDR, Malaysia, Myanmar, Singapore, Thailand, Philippines and Vietnam.


2020 ◽  
Vol 37 (2) ◽  
pp. 89
Author(s):  
Koh Siang Tan ◽  
Teresa Tay

This letter provides a response to the letter concerning "The Invasive Caribbean Mytilopsis sallei (Bivalvia: Dreissenidae): a Short Review" by Tan and Tay in AJSTD 35(1–2): 133–139.


2020 ◽  
Vol 37 (2) ◽  
pp. 87
Author(s):  
Dan Marelli

This letter seeks to comment on the taxonomy of members of the genus Mytilopsis (Bivalvia: Dreissenidae) that are found as invasive species in many Asian estuarine systems.


2020 ◽  
Vol 165 ◽  
pp. 101954
Author(s):  
Romilda Narciza Mendonça Queiroz ◽  
Patricia Mirella da Silva ◽  
Adriano Medeiros DeSouza ◽  
Letícia Brasileiro Silva ◽  
Thelma Lúcia Pereira Dias

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