Crustacea, metazoa

Копеподы — самые многочисленные многоклеточные

Неожиданные и увлекательные планы кафедрального семинара на «межсезонье» — доклад о современных направлениях, сложностях и значении исследований копепод. Автор — один из крупнейших специалистов по этой группе; успевайте послушать, не каждый день в Питере!

24 января(пятница), 16:00, аудитория 140 (3058)

Copepods – an introduction to the most abundant metazoan clade of the Tree of Life

Prof. Rony J. Huys (Natural History Museum, London)

No group of plants or animals on Earth exhibits the range of morphological diversity as seen among the extant Crustacea. This structural disparity is best demonstrated by the Copepoda, which by virtue of their immense vertical distribution – from the nutrient-rich black oozes of abyssal ocean depths to the nutrient-poor waters of the high Himalayas, spanning three quarters of the possible global vertical range – outnumber every other multicellular animal group on Earth, including the hyper-abundant insects and nematode worms. These small crustaceans are found throughout the world’s natural and man-made aquatic environments, spanning the entire salinity range from freshwater to hypersaline. They underpin the world’s freshwater and marine ecosystems, are sensitive bio-indicators of local and global climate change, key ecosystem service providers, and parasites of economically important aquatic animals. Copepods sustain the majority of world fisheries and through their roles as vectors of disease, also have a number of direct and indirect effects on human health and quality of life.

With nearly 14,000 valid species, and outnumbering the insects by up to three orders of magnitude, copepods carry a global biological importance that is belied by their generally small size. In the pelagic realm, representing a volume of 1,347 million km3 and being the largest biome on the planet, copepods are the dominant members of the zooplankton, both numerically and in terms of biomass. They are also the most species-rich group of the zooplankton, with approximately 2,100 described species in the pelagic environment and the dominant group within most marine sediments, second in abundance only to nematodes. In addition to life-strategies that encompass free-living, substrate-associated and interstitial habits, copepods also have extensive impacts in their role as associates or parasites of the majority of aquatic metazoan phyla, from sponges to chordates, including reptiles and marine mammals. This variety of life strategies has generated an incredible morphological plasticity and disparity in body form and shape which are arguably unrivalled among the Crustacea. My aims in this talk are to provide an informative introduction to copepods, to illustrate some research highlights, and to reflect on the importance and the potential difficulties of working on the most abundant multicellular component of the planet’s biota

Семинары проходят в Главном здании СПбГУ: от входа на Менделеевской линии надо подняться на второй этаж, пройти по коридору направо до следующей лестницы и там — на третий. Аудитория будет слева. Для проходя в здание университета нужен паспорт или другой документ; охраннику можно сказать, что Вы идёте на кафедру зоологии беспозвоночных. Перед началом семинара и в перерывах мы угощаем всех чаем и сладостями. Посещение свободное, видеозаписи и трансляций мы не ведем.