نتایج جستجو برای: electeric yellow fish

تعداد نتایج: 148297  

Journal: :Ecotoxicology and environmental safety 2014
Ali Azizishirazi William A Dew Berenice Bougas Mehdi Dashtban Louis Bernatchez Greg G Pyle

The olfactory system of fish is sensitive to the toxic effects of low concentrations of contaminants. To investigate the effects of long-term metal exposure on olfaction in wild yellow perch (Perca flavescens), fish from one clean (Geneva Lake) and two metal-contaminated lakes (Ramsey and Hannah lakes) were collected in and around the metal-mining district of Sudbury, ON. Two different techniqu...

Water soluble fraction (WSF) of crude oil can pollute water and cause histopathological alterations in fishes. Therefore, sea water pollution with crude oil could detrimentally impact the fish health. The aim of the present study was to evaluate the effect of different concentrations of WSF on gills of yellow fin sea bream. The fish were exposed to 0% (control), 2%, 4%, 8% and 16% of WSF for a ...

2017
Bin Kang Xiaoxia Huang Yunfei Wu

The Yellow River, one of the very few in the Earth, originated from many dispersive palaeolakes. Taking this unique advantage, we examined the roles of palaeolake isolation vs. geological processes vs. climate in determining current fish biogeographic pattern. We reviewed available data on fish species and their geographical distribution in the river, as well as palaeolake development, geologic...

2014
Carole C. Baldwin G. David Johnson

Integrative taxonomy, in which multiple disciplines are combined to address questions related to biological species diversity, is a valuable tool for identifying pelagic marine fish larvae and recognizing the existence of new fish species. Here we combine data from DNA barcoding, comparative morphology, and analysis of color patterns to identify an unusual fish larva from the Florida Straits an...

2010
Bruno Frédérich Suzanne C. Mills Mathieu Denoël Eric Parmentier Christophe Brié Raphael Santos Viliame Pita Waqalevu David Lecchini

Colour polymorphism is widespread in animals but, in contrast to other types of polymorphism, has been little explored during ontogeny. Among coral reef fish, the surge damselfish Chrysiptera leucopoma settles in the larval stage as a yellow morph, whereas 2 colour morphs (yellow and brown) are apparent in adults at Rangiroa Atoll, French Polynesia. To understand this dimorphism, we tested, und...

1999
Lin Wu David A. Culver

Two Daphnia species exhibited similar dynamic patterns in western Lake Erie. Populations peaked in early summer, declined to minimum abundance in mid-July, and then disappeared after August. To determine relative importance of food limitation and young-of-year (YOY) fish predation in regulating Daphnia dynamics, we examined relationships (I) between edible phytoplankton abundances and Daphnia f...

Journal: :شیلات 0
پریا اکبری1 1. استادیار گروه شیلات̨̨ دانشکده علوم دریایی̨ دانشگاه دریانوردی و علوم دریایی چابهار̨ چابهار̨ ایران

the present study investigated effects of starvation on growth, body chemical composition and non-specific immune parameters in yellow fin seabream.  in this study, 120 fish with a mean length of 8.05± 0.98 cm and weight of 7.46± 1.07 g (was referred as size a) and 120 fish with a mean length of 11.05 ± 0.86 cm and weight of 18.01± 3.07 g (was referred size b) were used with each size was compr...

Journal: :Engineering reports 2021

Yellow Saddle Goatfish Algorithm (YSGA) is an optimization model inspired by the hunting behavior of yellow saddle goatfish which emulates their collaborative behaviors with chaser fish and blocker fish. To improve global convergence, chaotic maps have been combined YSGA in this paper. Chaotic a nonlinear deterministic system that displays complex, noisy-like, unpredictable behavior. Due to its...

2017
Yuichiro Ono Akira Takahashi Jun Kusano Naoki Moriyama

A 66-year-old man with a 2-month history of epigastralgia was referred to our hospital after developing shock. An echocardiogram revealed a large pericardial echo-free space with collapsed right ventricle. A computed tomography scan of his trunk (Picture 1, 2) showed subdiaphragmatic fluid collection and pericardial effusion. In addition, a fine linear opacity (yellow arrow) was observed, which...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید