Assessment of the Spatial and Temporal Variation of Mesozooplankton in the Southern Black Sea, Türkiye

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dc.contributor.authorÜstün, Funda
dc.contributor.authorBat, Levent
dc.contributor.authorBayram Partal, Fatma
dc.contributor.authorAtabay, Hakan
dc.contributor.authorMutlu, Sabri
dc.contributor.authorTolun, Leyla
dc.contributor.authorUygun, Orçin
dc.date.accessioned2025-03-23T18:55:17Z
dc.date.available2025-03-23T18:55:17Z
dc.date.issued2024
dc.departmentSinop Üniversitesi
dc.description.abstractThis study investigated the taxonomic composition, abundance, and biomass values of mesozooplankton in the marine area in front of two important rivers (Sakarya River and Yesilirmak River) and the largest port located on the Black Sea coast in Türkiye (Samsun Port) in July 2019 and January 2020. The average mesozooplankton abundance and biomass were 4187.3 ind. m-3 and 89.7 mg m-3 in Sakarya River, 3638.5 ind. m-3 and 78.2 mg m-3 in Samsun Port, and 3327.6 ind.m-3 and 77.6 mg m-3 in Yesilirmak River, respectively. In July 2019, the highest abundance value of mesozooplankton (8581 ind. m-3) was recorded at SAK08 station off Sakarya River due to the copepod $Acartia$ $clausi$ (3279 ind. m-3). In July 2019, the highest biomass value of mesozooplankton (209.34 mg m-3) was found at YSL07 station off Yesilirmak River with the contribution of the copepod $Centropages$ $ponticus$ (77.90 mg m-3). In January 2020, the highest abundance and biomass values of mesozooplankton (4035 ind. m-3 and 66.45 mg m-3) were detected at SLI05 station off Samsun Port due to copepod $Acartia$ $clausi$. A difference in mesozooplankton species composition between the two sampling periods was identified. While Cladocera species and copepod $Acartia$ $tonsa$ were exclusive at the sampling stations in July 2019, copepod $Calanus$ $euxinus$, $Pseudocalanus$ $elongatus$ and $Oithona$ $similis$ were observed at the sampling stations in January 2020. Also, in January 2020, the presence of freshwater Cladocera species was detected off Sakarya River. The changes in biodiversity were determined to depend on temperature changes and riverine input.
dc.description.abstractMevcut çalismada, Temmuz 2019 ve Ocak 2020’de Türkiye'nin Karadeniz kiyilarinda yer alan iki önemli nehir (Sakarya Nehri ve Yesilirmak Nehri) ile Karadeniz’in en büyük limani olan Samsun Limani önündeki denizel alandaki mesozooplanktonun taksonomik kompozisyonu, bolluk ve biyokütle degerleri incelenmistir. Ortalama mesozooplankton bollugu ve biyokütlesi sirasiyla Sakarya Nehri’nde 4187.3 birey m-3 ve 89.7 mg m-3, Samsun Limani’nda 3638.5 birey m-3 ve 78.2 mg m-3 ve Yesilirmak Nehri’nde 3327.6 birey m-3 ve 77.6 mg m-3 olarak hesaplanmistir. Temmuz 2019’da mezozooplanktonun en yüksek bolluk degeri, Sakarya Nehri açiklarindaki SAK08 istasyonunda kopepod $Acartia$ $clausi$’nin yüksek katkisi (3279 birey m-3) nedeniyle kaydedilmistir. Temmuz 2019’da mezozooplanktonun en yüksek biyokütle degeri ise Yesilirmak Nehri açiklarindaki YSL07 istasyonunda, kopepod $Centropages$ $ponticus$’un yüksek katkisiyla (77.90 mg m-3) belirlenmistir. Ocak 2020’de mesozooplanktonun en yüksek bolluk ve biyokütle degerleri (4035 birey m-3 ve 66.45 mg m-3) Samsun Limani açiklarindaki SLI05 istasyonunda kopepod $Acartia$ $clausi$’nin yüksek katkisi ile tespit edilmistir. Mesozooplankton tür kompozisyonunda iki örnekleme dönemi arasinda farklilik saptanmistir. Cladocera türleri ve copepod $Acartia$ $tonsa$ Temmuz 2019’da örnekleme istasyonlarinda tespit edilmisken, $Calanus$ $euxinus$, $Pseudocalanus$ $elongatus$ ve $Oithona$ $similis$ Ocak 2020’de örnekleme istasyonlarinda gözlemlenmistir. Ayrica Ocak 2020’de Sakarya Nehri açiklarinda tatlisu Cladocera türlerinin varligi saptanmistir. Biyoçesitlilikteki degisikliklerin sicaklik degisimlerine ve nehir girdisine bagli oldugu belirlenmistir
dc.description.sponsorshipThis study was supported by the ANEMONE (Assessing the vulnerability of the Black Sea marine ecosystem to human pressures) Project (funded by the European Union under the ENI CBC Black Sea Basin Programme 2014-2020, project number BSB319).
dc.identifier.doi10.33484/sinopfbd.1450774
dc.identifier.doihttps://doi.org/10.33484/sinopfbd.1450774
dc.identifier.endpage330
dc.identifier.issn2536-4383
dc.identifier.issn2564-7873
dc.identifier.issue2
dc.identifier.startpage311
dc.identifier.urihttps://hdl.handle.net/11486/2511
dc.identifier.volume9
dc.language.isoen
dc.publisherSinop University
dc.relation.ispartofSinop University Journal of Natural Sciences
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_DergiPark_20250323
dc.subjectSpecies composition
dc.subjectabundance
dc.subjectbiomass
dc.subjectSakarya River
dc.subjectSamsun Port
dc.subjectYesilirmak River
dc.titleAssessment of the Spatial and Temporal Variation of Mesozooplankton in the Southern Black Sea, Türkiye
dc.title.alternativeGüney Karadeniz’in Mesozooplanktonun Mekansal ve Zamansal Degisiminin Degerlendirilmesi
dc.typeArticle

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