Macroplastic and microplastic contamination assessment of a tropical river (Saigon River, Vietnam) transversed by a developing megacity,

Environmental Pollution, Volume 236, May 2018, Pages 661-671, ISSN 0269-7491,

Abstract:
Both macroplastic and microplastic contamination levels were assessed for the first time in
a tropical river estuary system, i.e. the Saigon River, that traverses a developing South East Asian
megacity, i.e. Ho Chi Minh City, Vietnam.
The analysis of floating debris collected daily on the Nhieu Loc – Thi Nghe canal
by the municipal waste management service shows that the plastic mass percentage
represents 11–43%, and the land-based plastic debris entering the river was estimated from 0.96
to 19.91 g inhabitant−1 d−1, namely 350 to 7270 g inhabitant−1 yr−1. Microplastics were
assessed in the Saigon River and in four urban canals by sampling bulk water for anthropogenic
fiber analysis and 300 μm mesh size plankton net exposition for fragment analysis.
Fibers and fragments are highly concentrated in this system, respectively 172,000 to 519,000
items m−3 and 10 to 223 items m−3. They were found in various colors and shapes with smallest
size and surface classes being predominant.
The macroplastics and fragments were mainly made of polyethylene and polypropylene while
the anthropogenic fibers were mainly made of polyester.
The relation between macroplastic and microplastic concentrations, waste management, population
density and water treatment are further discussed.

https://drive.google.com/open?id=1hmXPx5_npIArW3aIdwwrh8nabmas74d2
https://doi.org/10.1016/j.envpol.2018.02.005.
(https://www.sciencedirect.com/science/article/pii/S0269749117330579)

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Plastic ingestion by Scyliorhinus canicula trawl captured in the North Sea,

Marine Pollution Bulletin, Volume 130, May 2018, Pages 6-7, ISSN 0025-326X,

Abstract:

The ingestion of plastic debris by marine organisms has been documented
across a variety of taxa including; marine mammals, sea birds, sea
turtles and some fish species. Fewer reports have described ingestion by
sharks, in this study the gastrointestinal tracts of 20 small spotted
catsharks (Scyliorhinus canicula) trawl captured in the North Sea were
investigated. Macroplastics (>20 mm) were found in 2 individuals and
microplastic (<5 mm) was found in one other individual, this is the
first time that plastic ingestion has been reported in this species.
These observations suggest that gastrointestinal analysis of commonly
landed elasmobranch species is worthwhile, to further understanding on
the organisms and habitats impacted by plastic pollution.

https://drive.google.com/open?id=1wJe0Z3VIUsV5iuFD5mdunWu_K8_YPfUH

https://doi.org/10.1016/j.marpolbul.2018.03.001.(https://www.sciencedirect.com/science/article/pii/S0025326X18301462)

The post Plastic ingestion by Scyliorhinus canicula trawl captured in the North Sea appeared first on One Earth - One Ocean e. V..

Plastic ingestion by Scyliorhinus canicula trawl captured in the North Sea

Marine Pollution Bulletin,
Volume 130, May 2018, Pages 6-7, ISSN 0025-326X

Abstract:

The ingestion of plastic debris by marine organisms has been documented across a variety of taxa including; marine mammals, sea birds, sea
turtles and some fish species. Fewer reports have described ingestion by sharks, in this study the gastrointestinal tracts of 20 small spotted
catsharks (Scyliorhinus canicula) trawl captured in the North Sea were investigated.

Macroplastics (>20 mm) were found in 2 individuals and microplastic (<5 mm) was found in one other individual, this is the
first time that plastic ingestion has been reported in this species.
These observations suggest that gastrointestinal analysis of commonly landed elasmobranch species is worthwhile, to further understanding on the organisms and habitats impacted by plastic pollution.

https://doi.org/10.1016/j.marpolbul.2018.03.001.(https://www.sciencedirect.com/science/article/pii/S0025326X18301462)

The post Plastic ingestion by Scyliorhinus canicula trawl captured in the North Sea appeared first on One Earth - One Ocean e. V..