نتایج جستجو برای: calanoida

تعداد نتایج: 401  

2015
Seong Yong Moon Seok-Hyun Youn B. A. Venmathi Maran

Two new species of benthopelagic copepods of the genus Stephos T. Scott, 1892, belonging to the family Stephidae G.O. Sars, 1902, are described based on specimens collected in the stagnant water flooding the burrows excavated by ocypodid crabs in two intertidal mud-flats, and from near-bottom shallow waters in Korea, respectively. They can be easily diagnosed based on the ornamentation of both ...

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2014
Mohsen M. El-Sherbiny Ali M. Al-Aidaroos

The calanoid copepod, Acartiabispinosa Carl, 1907, is reported for the first time in the Red Sea, where it is found to be an important copepod in the mesozooplankton community structure of the Sharm El-Maya Bay. Female and male are fully redescribed and illustrated of as the mouthparts of this species have never previously been described and figured. Acartiabispinosa was collected in the plankt...

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Journal: :Marine Ecology Progress Series 1998

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1999
D. K. Hartline

E€ective escape behavior contributes to the success of copepods in planktonic communities. The kinematics of escape were studied in tethered Undinula vulgaris (Calanoida) by analyzing the timing and magnitude of their power strokes to a precisely controlled, sudden mechanical perturbation in the surrounding water. Copepods responded with rapid swims to water velocities of 36 to 86 lm s. Reactio...

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2016
Su Youn Baek Kuem Hee Jang Eun Hwa Choi Shi Hyun Ryu Sang Ki Kim Jin Hee Lee Young Jin Lim Jimin Lee Jumin Jun Myounghai Kwak Young-Sup Lee Jae-Sam Hwang Balu Alagar Venmathi Maran Cheon Young Chang Il-Hoi Kim Ui Wook Hwang

Copepods, small aquatic crustaceans, are the most abundant metazoan zooplankton and outnumber every other group of multicellular animals on earth. In spite of ecological and biological importance in aquatic environment, their morphological plasticity, originated from their various lifestyles and their incomparable capacity to adapt to a variety of environments, has made the identification of sp...

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2017
Daniel Previattelli Gilmar Perbiche-Neves Carlos E. F. da Rocha

A new Diaptomidae species is presented from the Neotropical region. It was found in two Amazonian lakes, Ressaca and Arapujá, both in Pará State, Brazil. The lakes are 400 km apart and threatened by the building of reservoirs for hydropower generation and pollution by human settlements. The new species resembles N. paraensis Dussart & Robertson, 1984, but it can be distinguished from this speci...

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Journal: :Brazilian journal of biology = Revista brasleira de biologia 2006
A Magalhães R M Costa T H Liang L C C Pereira M J S Ribeiro

Spatial and temporal density and biomass distribution of the planktonic copepods Pseudodiaptomus richardi and P. acutus along a salinity gradient were investigated in the Caeté River Estuary (North-Brazil) in June and December, 1998 (dry season) and in February and May, 1999 (rainy season). Copepod biomass was estimated using regression parameters based on the relation of dry weight and body le...

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2017
Miguel Alonso Edinaldo N. dos Santos-Silva Damià Jaume

Notodiaptomus cannarensissp. n. is described from a reservoir on the Amazonian slope of the Ecuadorian Andes. The new species is unique among diaptomid calanoid copepods in the display of hypertrophied, symmetrical wing-like extensions at each side of the female composite genital somite. Furthermore, it displays a female urosome reduced to only two somites due to the incorporation of abdominal ...

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Journal: :Brazilian journal of biology = Revista brasleira de biologia 2007
T Matsumura-Tundisi J G Tundisi

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2015
Gilmar Perbiche-Neves Geoffrey Allan Boxshall Daniel Previattelli Marcos Gomes Nogueira Carlos Eduardo Falavigna da Rocha

An identification guide is presented for species of calanoid copepod family Diaptomidae from "de la Plata" River Basin (Argentina, Brazil, Bolivia, Paraguay and Uruguay). It was based on material collected during the summer and winter of 2010 from 43 sites across the eastern part and the lower stretches of this basin, the second largest in South America and the fourth in the world. The guide co...

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