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    Home > Food News > Food Articles > Younger turtles are more likely to die from plastic intake

    Younger turtles are more likely to die from plastic intake

    • Last Update: 2021-03-13
    • Source: Internet
    • Author: User
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    Title: A quantitative analysis of sea turtle mortality and plastic debris
    journal:
    Chris Wilcox, Melody Puckridge, Qamar A Schuyler, Kathy Townsend and Britta Denise Hardesty
    Published: 2018/09/13
    Paper Label: 10.1038/s41598-018-018 30038-z
    Original Link:
    WeChat Link:
    According to a study published in Scientific Reports,
    , younger turtles (baby turtles and newly hatched tortoises) are at higher risk of dying from plastic intake than those who die from plastic intake.
    Britta Denise Hardesty of the Australian Federal Scientific and Industrial Research Organisation and colleagues examined autopsy data from 246 turtles and 706 autopsy records from the stranding database and found that tortoises consumed more plastic than tortoises, and that the amount of plastic in the turtle's digestive tract varies from cause
    of death; Twenty-three percent of tortoises and 54 percent of tortoises ingest plastic, compared with only 15 percent of asian turtles and 16 percent of tortoises.
    results suggest that eating sites and stages of development may affect the risk of death for turtles, who tend to drift with waves and eat near the surface of offshore waters, where seawater is more susceptible to plastic contamination. Plastic accumulates in the turtle's digestive tract or causes perforation.
    authors found that the best model for describing the relationship between plastic intake and risk of death for turtles is to take into account the number of plastic items relative to the length and age of the turtle shell. The global turtle population is declining, especially in coastal areas, and the authors' model represents the first step in quantifying the risks of plastic pollution to sea turtles.
    summary: Plastic in the marine environment is a growing environmental issue. Sea turtles are at significant risk of ingesting plastic debris at all stages of their lifecycle with potentially lethal consequences. We tested the relationship between the amount of plastic a turtle has ingested and the likelihood of death, treating animals that died of known causes unrelated to plastic ingestion as a statistical control group. We utilized two datasets; one based on necropsies of 246 sea turtles and a second using 706 records extracted from a national strandings database. Animals dying of known causes unrelated to plastic ingestion had less plastic in their gut than those that died of either indeterminate causes or due to plastic ingestion directly (e.g. via gut impaction and perforation). We found a 50% probability of mortality once an animal had 14 pieces of plastic in its gut. Our results provide the critical link between recent estimates of plastic ingestion and the population effects of this environmental threat.:
    (
    ) is an online, open access journal from the publishers of Nature. We publish scientifically valid primary research from all areas of the natural and clinical sciences.
    2017 journal metrics for Scientific Reports are as follows:
    -2-year impact factor: 4.122
    -5-year impact factor: 4.609
    .Immediacy index: 0.576
    .Eigenfactor® Score: 0.71896
    .Article Influence Score: 1.356
    .2-year Median: 2
    (Source: Science.com)
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