نتایج جستجو برای: ostracods

تعداد نتایج: 447  

Journal: :Proceedings. Biological sciences 2007
David J Siveter Derek J Siveter Mark D Sutton Derek E G Briggs

An exceptionally preserved new ostracod crustacean from the Silurian of Herefordshire, England, preserves eggs and possible juveniles within its carapace, providing an unequivocal and unique view of parental brood care in the invertebrate fossil record. The female fossil is assigned to a new family and superfamily of myodocopids based on its soft-part anatomy. It demonstrates a remarkably conse...

2015
Shimpei F. Hiruta Shin-ichi Hiruta

BACKGROUND So far, 16 species of non-marine ostracods have been reported from Kushiro Marsh, Kushiro Shitsugen National Park, eastern Hokkaido, Japan (Hiruta and Smith 2001, Smith and Hiruta 2004). Nine of these species are in Candonidae, the second-most diverse family of non-marine ostracods. This family contains ca. 550 species, or around 25% of the total number of non-marine ostracod species...

2012
Prasuna Solomon G Pavani Nageswara Rao Amanchi

Ostracods form an important part of benthic biota. They form a feed to many fish, insects, insect larvae and even corals. In the vast aquatic biome both freshwater and sea they occupy an important place in the food chain. Experiments were conducted on a freshwater ostracod species, Chrissia halyi, culturing them in the laboratory along with chlodophora the feed. The feed was first exposed to le...

2013
PRONOB K. MOZUMDER SAMSUN NAHAR M. NIAMUL NASER MUNIRUL ALAM ANWAR HUQ R. BRADLEY SACK RITA R. COLWELL

We studied the coastal zooplankton community structure of six waterbodies of Mathbaria and Bakerganj from January 2008 to June 2009. In total 35 zooplankton species were identified under 26 genera under 20 families under 8 orders from Mathbaria. Among them 6 were protozoans, 24 were rotifers, 3 were copepods, 1 was cladocerans and 1 was ostracods. From Bakergonj a total of 42 zooplankton specie...

Journal: :Integrative and comparative biology 2013
Daniel I Speiser Rebecca I Lampe Valerie R Lovdahl Brenna Carrillo-Zazueta Ajna S Rivera Todd H Oakley

Sexual dimorphisms have long drawn the attention of evolutionary biologists. However, we still have much to learn about the evolutionary, genetic, and developmental drivers of sexual dimorphisms. Here, we introduce ostracods of the genus Euphilomedes (Myodocopida, Ostracoda, and Crustacea) as a promising new system in which to investigate why and how sexual dimorphisms evolve. First, we ask whe...

Journal: :Journal of vector borne diseases 2011
Okorie Anyaele Abiodun Obembe

BACKGROUND & OBJECTIVES An efficient larvivorous fish must show a predilection for mosquito larvae in the presence of alternative preys. This study compares the feeding capacity and preference of Aphyosemion gularis exposed to different kinds of aquatic macroinvertebrates. METHODS Various prey organisms such as Anopheles larvae and pupae, Culex larvae, chironomid larvae and ostracods were eit...

Journal: :geopersia 0
parvaneh rezaei roozbahani university

the present article is a review of a palaeobiogeographic analysis of jurassic ostracods from east africa, india and madagascar and includes also some general remarks on palaeobiogeography, biodiversity and ostracod ecology.the palaeobiogeographic study shows the high significance of this microfossil group for the reconstruction of palaeogeographic processes, particularly plate tectonic developm...

Journal: :iranian journal of science and technology (sciences) 2009
m. r. vaziri

a detailed study of ostracoda changes against the stable isotopes of carbon and oxygen acrossthe cenomanian-turonian boundary mass extinction has been fully documented in one section, the south ofengland. this section comprises the uppermost cenomanian to lowermost turonian strata. the comparisonbetween the results obtained in this research and two rival models for the cenomanian-turonian bound...

Journal: :Australian Museum Memoir 1984

2016
Lisa M. Nigro Martin V. Angel Katarzyna Blachowiak-Samolyk Russell R. Hopcroft Ann Bucklin Mehrdad Hajibabaei

The Ostracoda (Crustacea; Class Ostracoda) is a diverse, frequently abundant, and ecologically important component of the marine zooplankton assemblage. There are more than 200 described species of marine planktonic ostracods, many of which (especially conspecific species) can be identified only by microscopic examination and dissection of fragile morphological characters. Given the complexity ...

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