Oceanological and Hydrobiological Studies
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Freshwater green algal biofouling of boats in the Kabul River, Pakistan
Oceanological and Hydrobiological Studies - Tập 43 - Trang 329-336 - 2015
Freshwater green algal biofouling of boats refers to the accrual of freshwater
green algae on boats immersed in water. The current research focused on the
morphological characteristics of the isolates, species ecology, and the
physicochemical properties of the water at the sampling sites. Two localities,
Haji Zai and Sardaryab, were sampled at the Kabul River in the district of
Charsadda, Pakistan...
Identification of water quality and benthos characteristics in Daya Bay, China, from 2001 to 2004
Oceanological and Hydrobiological Studies - Tập 40 - Trang 82-95 - 2011
Physicochemical and benthos data were collected from 12 marine monitoring
stations in Daya Bay, during 2001-2004. 12 stations in Daya Bay could be grouped
into three clusters: cluster I consisted of stations in the southern part of
Daya Bay (stations S1, S2 and S6); cluster II consisted of stations in the cage
culture areas (stations S3, S4, S5 and S8); cluster III consisted of stations in
the sou...
Tích lũy đồng thời của anatoxin-a và microcystins ở ba loài cá bản địa sống trong các hồ bị ảnh hưởng bởi sự nở hoa tảo lam Dịch bởi AI
Oceanological and Hydrobiological Studies - Tập 41 Số 4 - Trang 53-65 - 2012
Tóm tắt Một nghiên cứu trong bốn năm được thực hiện tại một hồ nước có hiện
tượng nở hoa tảo kéo dài do Planktothrix agardhii (Oscillatoriales) và Anabaena
lemmermanii, Anabaena flos-aquae, Anabaena spp. và Aphanizomenon issatchenkoi
(Nostocales) gây ra đã chỉ ra rằng cá sinh sống dưới hồ bị đe dọa bởi sự tiếp
xúc đồng thời với microcystins (MCs) nội bào và ngoại bào cũng như anatoxin-a
(ANTX). Hà...
Four small-celled Planothidium species from Central Europe proposed as new to science
Oceanological and Hydrobiological Studies - Tập 43 - Trang 346-359 - 2015
Four small-celled taxa are presented and described — Planothidium werumianum, P.
pumilum, P. rhombiculum and P. rostratoholarcticum. Planothidium werumianum, P.
pumilum and P. rhombiculum are proposed as new to science and P.
rostratoholarcticum as a new name for Achnanthes lanceolata var. rostrata
Hustedt 1911. The latter, coming from Germany, is transferred to Planothidium in
the species rank. T...
The story of one clam. Probably the oldest location of the Chinese pond mussel Sinanodonta woodiana (Lea, 1834) (Bivalvia, Unionidae) in Poland
Oceanological and Hydrobiological Studies - Tập 41 - Trang 41-45 - 2011
The discovery of a shell of the Chinese pond mussel in 1998 and further
confirmation of this species indicate that a reservoir with natural thermal
conditions is the oldest species location in Poland. Growth increments of an
archival shell do not fall within the ranges obtained by this species in Konin
lakes. They are, however, close to population ranges from Hungary. In contrast
to other specimen...
Dystrophy hoặc eutrophy: Phytoplankton và các tham số hóa lý trong hoạt động của các hồ humic Dịch bởi AI
Oceanological and Hydrobiological Studies - Tập 40 Số 2 - Trang 22-29 - 2011
Các nghiên cứu được tiến hành tại sáu hồ humic (Khu vực Polesie, Ba Lan phía
Đông) nhằm trình bày vai trò của phytoplankton liên quan đến các tham số vật lý
và hóa học đặc trưng cho các quá trình cụ thể. Dựa trên các tính chất vật lý và
hóa học của nước (SD, màu sắc, pH, EC, Ca2+, DIC, DOC), các hồ này được chia
thành ba nhóm: hồ dystrophic (Hồ Orchowe và Płotycze), hồ humoeutrophic (Hồ
Brudzienie...
#phytoplankton #hồ humic #dystrophic #eutrophic #tham số hóa lý
Species density obtained for fish sampled with three seine nets hauled individually towards a stop net or a bank
Oceanological and Hydrobiological Studies - - 2013
Abstract Researchers continuously search for adequate and inexpensive fish
sampling methods and, as such, it is worth remembering the quantitative seine
method with three identical nets hauled individually towards a stop net or a
bank. A sample obtained by three nets is the absolute minimum for any accurate
estimate employing a removal technique, and this procedure provides an estimate
of density ...
Phosphorus in sediments and pore waters of selected Polish dam reservoirs
Oceanological and Hydrobiological Studies - Tập 40 - Trang 72-85 - 2011
This study aimed to examine and explain the spatial distribution of total
phosphorus in sediments and orthophosphates in interstitial water in four Polish
dam reservoirs with varying hydrological and geochemical characteristics. The
results are linked to physicochemical parameters of sediments: organic matter
and calcium carbonates content, pH, redox potential and conductivity. In two of
the studi...
Effects of coastal upwelling on picophytoplankton distribution off the coast of Zhanjiang in South China Sea
Oceanological and Hydrobiological Studies - Tập 43 - Trang 283-291 - 2014
Coastal upwelling occurred along the west coast of Guangdong in the northern
South China Sea during the summer of 2006. The effects of upwelling on the
vertical and horizontal distributions of Prochlorococcus and Synechococcus were
investigated. A distinct vertical temperature difference between the surface
water and water at a depth of 30 m was observed in the coastal upwelling region.
There was ...
The structure of psammic rotifer communities in two boreal lakes with different trophic conditions: Lake Võrtsjärv and Lake Saadjärv (Estonia)
Oceanological and Hydrobiological Studies - Tập 43 Số 1 - Trang 49-55 - 2014
Abstract Psammon communities are still poorly studied worldwide. The aim of the
present study was to establish the structure of psammic rotifer communities
including their diversity and quantitative parameters. A total of 41 rotifer
taxa were found in hydro-, hygro-, and euarenal zones of eutrophic Lake
Võrtsjärv and mesotrophic Lake Saadjärv during the study carried out in Estonia
in 2008, includ...
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