نتایج جستجو برای: Cyclopoid copepod

تعداد نتایج: 2639  

Journal: :international journal of aquatic biology 0
neda fazeli guilan university, department of marine biology, rasht, iran. rasool zare department of fisheries, faculty of natural resources university of tarbiat modarres, noor, iran. seyed mohammad bagher nabavi khorramshahr university of marine science and technology. department of biology khorramshahr, iran. saeed sanjani khorramshahr university of marine science and technology. department of biology khorramshahr, iran.

calanoid, cyclopoid, harpacticoid and poecilostomatoid copepods were investigated over the year at five stations in the chabahar bay, oman sea. this area is under the influence of the indian ocean seasonal monsoons. the samples were collected using vertical plankton tows with 100 µm mesh nets. copepods were identified into 20 genera and 59 species. calanoid formed about 15% to 62% and cyclopoid...

Journal: :Journal of environmental biology 2011
Beenamma Joseph Sadanand M Yamakanamardi

Zooplankton abundance and distribution are of ecological importance, as they are very sensitive to change, therefore zooplankton make ideal indicators of aquatic ecosystem. This study carried out on the abundance of rotifer, cladoceran, cyclopoid-copepod and ostracod zooplankton groups and biomass of total zooplankton were studied every month for one year. It is interesting and noteworthy to no...

Journal: :Journal of medical entomology 1987
F Rivière B H Kay J M Klein Y Séchan

J. Med. Entomol, 24: 425-430 (1987) ABSTRACT In French Polynesia, the cyclopoid copepod Mesocyclops aspericornis was inoculated into burrows of the land crab Cardisoma carnifex and into tree holes, drums, wells, and tires. It successfully reduced larval populations of Aedes polynesiensis and/or Aedes aegypti by 91-99%. Mesocyclops aspericornis has persisted to date for 29 mo in crab holes and f...

2010
YUICHIRO NISHIBE TORU KOBARI TAKASHI OTA

Onboard incubation experiments were conducted to examine the feeding rates and selectivity of the cyclopoid copepod Oithona similis on natural assemblages of microplankton during the spring bloom in the Oyashio region. O. similis cleared ciliates at higher rates (2.8–11.9 mL copepod 1 d ) than dinoflagellates (1.4 mL copepod 1 d ), with no detectable ingestion of diatoms. Clearance increased wi...

Journal: :Environmental microbiology reports 2009
Hans-Peter Grossart Claudia Dziallas Kam W Tang

Bacterial community compositions (BCC) associated with the cladoceran Bosmina coregoni and the cyclopoid copepod Thermocyclops oithonoides in oligotrophic Lake Stechlin versus eutrophic Lake Dagow (northeastern Germany) were compared using molecular techniques. We also transplanted the zooplankton from their native lake to the other lake, and studied changes in their associated BCC as a result ...

2004
Josefin Titelman Øyvind Fiksen

We investigated fine-scale (5m, 4h) speciesand stage-specific (N1 to C6) distributions of common copepods at an anchor station in a Swedish fjord during two 24 h periods in October 1997. Generally, both calanoid and cyclopoid nauplii were found near the surface, while copepodids stayed deeper in the water column. No diurnal migration was observed. To analyze the observed distributions, we combi...

Journal: :The Journal of Cell Biology 1963
Wolf H. Fahrenbach

The fine structure of the abdominal musculature of the copepod Macrocyclops albidus was investigated by electron microscopy. Tubules penetrate into the muscle fibers from the sarcolemma, continuity between the wall of the tubules and the sarcolemma being clear. A dense network of tubules envelops the myofibrils, its interstices being occupied by cisternal elements. At the Z lines the tubules tr...

ژورنال: علمی شیلات ایران 2020

In this study the effects of different algal and nonalgal diets on density and population growth rate of cyclopoid copepod Acanthocyclops trajani were studied. To this intention, the copepod were mass cultured in 120 liter tanks by feeding on different diets (5 treatments, 3 replicate in each one) including fresh composition of microalgae: Scenedesmus obliquus and Spirulina maxima (LSS), dried ...

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