نتایج جستجو برای: electeric yellow fish

تعداد نتایج: 148297  

ژورنال: توسعه آبزی پروری 2023

The aim of this study was to elevate the effect of stocking density of 20, 25 and 30 fish/m3 on some growth parameters and skin color of Koi fry (Cyprinus carpio) with the mean weight of 1.9 ±0.8 g (±SE) in the concrete ponds, earthen ponds, and fiberglass tanks with the total capacity of 1000 L for 45 days. The highest Final weight (12.38±1.9 g), Final length (10.05±1.06 cm), Body weight incre...

Journal: :Genetics 2002
Christopher M Yan Kenneth W Dobie Hiep D Le Alexander Y Konev Gary H Karpen

Approximately one-third of the human and Drosophila melanogaster genomes are heterochromatic, yet we know very little about the structure and function of this enigmatic component of eukaryotic genomes. To facilitate molecular and cytological analysis of heterochromatin we introduced a yellow(+) (y(+))-marked P element into centric heterochromatin by screening for variegated phenotypes, that is,...

Journal: :Zootaxa 2015
Yoshino Fukui Hiroyuki Motomura

A new labrid fish Terelabrus dewapyle sp. nov. is described as the second species of the genus, on the basis of five specimens collected from southern Japan, Papua New Guinea, and Fiji in depths of 72-92 m. The sole paratype of T. rubrovittatus Randall & Fourmanoir 1998 is herein identified as T. dewapyle and designated as a paratype of the latter. The new species can be distinguished from T. r...

Journal: :Diseases of aquatic organisms 2010
Lester Khoo Frederick A Rommel Stephen A Smith Matt J Griffin Linda M Pote

Archived tissues from affected yellow perch Perca flavescens, as well as fresh submissions of juvenile yellow perch, walleye, fathead minnows, golden shiners and smallmouth bass cultured in the same pond or from a shared water source were examined for the presence of Myxobolus neurophilus. Archived tissues were sectioned and stained with hematoxylin and eosin or with Giemsa, revealing myxozoan ...

2000
Steven A. Pothoven Thomas F. Nalepa Stephen B. Brandt

Age-0 yellow perch (Perca flavescens) were collected during October 1998 and age-1 yellow perch were collected during June 1999 from southeastern Lake Michigan off St. Joseph and Muskegon, Michigan, to evaluate diets relative to recent ecosystem changes. Size range of yellow perch examined was 72 to 118 mm. In October at a 15-m site off Muskegon, both Gammarus spp. and Isopoda were found in nea...

2013
Troy M. Farmer Konrad Dabrowski Elizabeth A. Marschall Stuart A. Ludsin

Climate change is expected to affect fish populations worldwide through a number of mechanisms. To help understand consistent, failed Lake Erie yellow perch (Perca flavescens) year-classes following warm winters during 1975–2010, we used a combined laboratory-experimental and population-modeling approach. We hypothesized that climate change would negatively affect yellow perch by 1) increasing ...

Journal: :Molecules 2014
Jin Zhang Wenge Ma Xiaomin Song Qiaohong Lin Jian-Fang Gui Jie Mei

Yellow catfish (Pelteobagrus fulvidraco) is one of the most important freshwater fish due to its delicious flesh and high nutritional value. However, lack of sufficient simple sequence repeat (SSR) markers has hampered the progress of genetic selection breeding and molecular research for yellow catfish. To this end, we aimed to develop and characterize polymorphic expressed sequence tag (EST)-S...

2014
Aaron R Cupp Christopher F Hartleb Kim T Fredricks Mark P Gaikowski

Effects of eugenol (AQUI-S 20E, 10% active eugenol) sedation on cool water, yellow perch Perca flavescens (Mitchill), and warm water, Nile tilapia Oreochromis niloticus L. fish metabolic rates were assessed. Both species were exposed to 0, 10, 20 and 30 mg L 1 eugenol using static respirometry. In 17°C water and loading densities of 60, 120 and 240 g L , yellow perch controls (0 mg L 1 eugenol)...

2017
Junru Hu Guoxia Wang Yanhua Huang Yuping Sun Fei He Hongxia Zhao Nana Li

An 8-week feeding trial was conducted to evaluate effects of replacing fish meal (FM) with black soldier fly larvae meal (BSF) on growth performance, feed utilization, and plasma parameters, for juvenile yellow catfish, Pelteobagrus fulvidraco. Six isonitrogenous and isolipidic diets were prepared substituting the FM protein with BSF protein in the following amounts: 0 (control group), 10% (BSF...

2014
Carole C. Baldwin D. Ross Robertson

Collecting reef-fish specimens using a manned submersible diving to 300 m off Curaçao, southern Caribbean, is resulting in the discovery of numerous new fish species. The new Liopropoma sea bass described here differs from other western Atlantic members of the genus in having VIII, 13 dorsal-fin rays; a moderately indented dorsal-fin margin; a yellow-orange stripe along the entire upper lip; a ...

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