{"title":"Plant balls from a Pomeranian lake, their invertebrate and microplastic components","authors":"Bartosz Witalis, Ryszard Kornijów","doi":"10.26881/oahs-2023.3.05","DOIUrl":null,"url":null,"abstract":"Two balls with similar diameters (approximately 11– 12 cm) were found on the bottom of Lake Białe (Kashubian Lake District) at depths of 4 m and 7 m. The structures were made of tightly-packed plant remains represented mainly by decaying leaves of Larix sp. The balls were colonised by invertebrates (Tubificinae, Hirudinea, Isopoda, and insect larvae). They also contained pollutants, namely microplastics in blue, white, red, and black colours with a length from 500 to 1000 µm. Four other balls had been earlier reported by another diver in the same lake. According to a report of the local press, similar balls have also been found in Lake Bobęcińskie (Bytowskie Lake District). This article aims to record the first appearance of larch balls in this area.","PeriodicalId":19407,"journal":{"name":"Oceanological and Hydrobiological Studies","volume":"57 1","pages":"0"},"PeriodicalIF":0.9000,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Oceanological and Hydrobiological Studies","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.26881/oahs-2023.3.05","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"OCEANOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
Two balls with similar diameters (approximately 11– 12 cm) were found on the bottom of Lake Białe (Kashubian Lake District) at depths of 4 m and 7 m. The structures were made of tightly-packed plant remains represented mainly by decaying leaves of Larix sp. The balls were colonised by invertebrates (Tubificinae, Hirudinea, Isopoda, and insect larvae). They also contained pollutants, namely microplastics in blue, white, red, and black colours with a length from 500 to 1000 µm. Four other balls had been earlier reported by another diver in the same lake. According to a report of the local press, similar balls have also been found in Lake Bobęcińskie (Bytowskie Lake District). This article aims to record the first appearance of larch balls in this area.
期刊介绍：
Oceanological and Hydrobiological Studies is an international journal published by the Institute of Oceanography, University of Gdańsk in Poland. The journal has 4 issues per year and contains papers on all aspects of the marine environment and hydrobiology. All manuscripts are reviewed by editors and independent experts. Based on the referees'' recommendations, the Editor will make a decision on whether to accept a contribution. All articles are published in English. The journal is open to all matters concerning the water environment, thus providing the readers with a wide spectrum of topics in every issue.
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