Seasonal variations of abundance and live/dead compositions of copepods inMersin Bay, northeastern Levantine Sea (eastern Mediterranean)

The seasonality of abundance and live/dead compositions of copepods was studied in the northeastern Mediterranean Sea. Zooplankton, chlorophyll-a, and PO4 sampling was performed on a monthly basis from March 2006 to February 2007 at both a coastal station and an open water station. At the coastal station, high phytoplankton biomass was driven by PO4 input from the Lamas River. On annual average, copepod abundance was 53,075 and 140,227 ind. m(-2) at the coastal and open water stations, respectively. The most common copepod taxa were Oithona similis, Euterpina acutifrons, Labidocera spp., Oncaea media, and Temora spp. at the coastal station, and Oncaea media, Labidocera spp., Lucicutia spp., Farranula spp., Oithona similis, and Microsetella spp. at the open water station. At the coastal station, dead copepods did not exceed 7% of the population; on annual average, 2.6% of the copepods were dead. At the open water station, on average 10.6% of the copepod population appeared dead; the percentages of dead copepods reached 29.5% in April and 21.7% in May 2006, suggesting that the copepod community suffered higher nonpredatory mortality at the open water station than at the coastal station, especially in the spring

Studies on some ecological aspects of copepods and chaetognaths in the southern Black Sea, with particular reference to calanus euxinus

Ph.D. - Doctoral Progra

Zooplankton araştırma laboratuvarının alt yapısını iyileştirmek ve işler halde tutarak bilimsel ve teknik gücü arttırmak

Enstitümüzde yapılmakta olan zooplankton araştırmaları bu altyapı projesi kapsamında satın alınan sarf malzemeleri, mikroskop objektifi ve ağ dikimi ile desteklenmiştir. Bu destek ile Enstitümüzce yürütülmekte olan Karadeniz projesi kapsamında gerçekleştirilen Haziran 2006 seferinde, Karadeniz'de dominant kopepod olan Calanus euxinus'un yumurta üretim deneyleri gerçekleştirilmiştir. Haziran ayı için ortalama yumurta üretimi 4.9±4.3 yumurta $dişi^{-1} gün^{-1}$ olarak bulunmuştur. Üretilen yumurta çapları 162 ile 175 $\mu$ m arasında değişim göstermektedir