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Estrogenic compounds affect development of harpacticoid copepod Tigriopus japonicus.
- H. Marcial, A. Hagiwara, T. Snell
- Biology, Medicine
- Environmental toxicology and chemistry
- 1 December 2003
The aim of this investigation was to evaluate the impact of estrogenic compounds on the harpacticoid copepod Tigriopus japonicus after continuous exposure to environmentally relevant concentrations.… Expand
Morphology, reproduction, genetics, and mating behavior of small, tropical marine Brachionus strains (Rotifera)
Small, tropical marine Brachionus (SS strains) are distinguished by their lorica size and shape. Their relation to other marine Brachionus species, however, remains unknown. We examined morphometry,… Expand
Ecotoxicology, ecophysiology, and mechanistic studies with rotifers.
Invertebrates play an increasing role in assessing the impacts of environmental contaminants in aquatic ecosystems. Substantial efforts were made to identify suitable and environmentally relevant… Expand
Two circular chromosomes of unequal copy number make up the mitochondrial genome of the rotifer Brachionus plicatilis.
- K. Suga, D. M. Mark Welch, Yukari Tanaka, Y. Sakakura, A. Hagiwara
- Medicine, Biology
- Molecular biology and evolution
- 1 June 2008
The monogonont rotifer Brachionus plicatilis is an emerging model system for a diverse array of questions in limnological ecosystem dynamics, the evolution of sexual recombination, cryptic… Expand
Differences in life-history traits in two clonal strains of the self-fertilizing fish, Rivulus marmoratus
- Ma.Vivian Camacho Grageda, Y. Sakakura, Masako Minamimoto, A. Hagiwara
- Environmental Biology of Fishes
- 1 August 2005
SynopsisWe compared life-history traits such as fecundity, sex ratio, reproductive cycle, age at sexual maturity, embryonic period, egg size, early growth and morphology in two clonal strains (PAN-RS… Expand
Studies on the formation and hatching of fertilized eggs of the rotifer Brachionus plicatilis - II. Effects of temperature and chlorinity on resting egg formation in the rotifer Brachionus plicatilis.
The effect of temperature (15-30°C) and chlorinity (4-16‰) on resting egg production of the rotifer Brachionus plicatilis was investigated. The rate of resting egg formation was found to increase at… Expand
Fifteen species in one: deciphering the Brachionus plicatilis species complex (Rotifera, Monogononta) through DNA taxonomy
Abstract Understanding patterns and processes in biological diversity is a critical task given current and rapid environmental change. Such knowledge is even more essential when the taxa under… Expand
Increased sexual reproduction in brachionus plicatilis (rotifera) with the addition of bacteria and rotifer extracts
Abstract Previous works revealed that sexual reproduction of brachionid rotifers increases with increasing population density. It is also known that the renewal of environmental water suppresses… Expand
Resting eggs of the marine rotifer Brachionus plicatilis Müller: development, and effect of irradiation on hatching
Diapause and hatching of Brachionus plicatilis Müller resting eggs were examined through histological and optical approaches. Compound microscope observations on 1% toluidine blue-stained embryo… Expand
Live food production in Japan: recent progress and future aspects
Techniques to culture rotifers at high-density (2000 to 20 000 ind./ml) have been developed by utilizing condensed phytoplankton products. Many public hatcheries in Japan have introduced automated… Expand