نتایج جستجو برای: persian sturgeon

تعداد نتایج: 14317  

2017
Matthew T. Balazik Daniel J. Farrae Tanya L. Darden Greg C. Garman

Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus, Acipenseridae) populations are currently at severely depleted levels due to historic overfishing, habitat loss, and pollution. The importance of biologically correct stock structure for effective conservation and management efforts is well known. Recent improvements in our understanding of Atlantic sturgeon migrations, movement, and the occurr...

2011
David D. Huff Steven T. Lindley Polly S. Rankin Ethan A. Mora

The green sturgeon (Acipenser medirostris) is a highly migratory, oceanic, anadromous species with a complex life history that makes it vulnerable to species-wide threats in both freshwater and at sea. Green sturgeon population declines have preceded legal protection and curtailment of activities in marine environments deemed to increase its extinction risk. Yet, its marine habitat is poorly un...

2014
Christine E. Verhille Jamilynn B. Poletto Dennis E. Cocherell Bethany DeCourten Sarah Baird Joseph J. Cech Nann A. Fangue

Little is known of the swimming capacities of larval sturgeons, despite global population declines in many species due in part to fragmentation of their spawning and rearing habitats by man-made water-diversion structures. Larval green (Acipenser medirostris) and white sturgeon (Acipenser transmontanus) inhabit the highly altered Sacramento-San Joaquin watershed, making them logical species to ...

Journal: :iranian journal of veterinary medicine 2012
حجت جعفریان mahdi soltani

backgrounds: optimization of microbial compositions and load in live food during the process of bioencapsulation is one of the most important concerns in aquaculture, as it can promote the growth and feeding parameters of fish larvae. objectives: the aim of this study was to determine the growth and feeding performance of persian sturgeon larvae fed with bioencapsulated d. magna with saccharomy...

Ahmad Ghasemi Fereidoon Chakmehdouz Mahtab Yarmohammadi Mohammad Hassanzadeh Mohammad Pourkazemi1

The late sexual maturity in sturgeon and the absence of morphological differences between males and females makes sex discrimination difficult. Identification of sex at an early life stage is of high interest in caviar production because it allows efficient selection of females. In this study, the genome of 10 mature male and 10 mature female specimens of Persian sturgeon (Acipenser persicus...

2017
Darryl W Hondorp David H Bennion Edward F Roseman Christopher M Holbrook James C Boase Justin A Chiotti Michael V Thomas Todd C Wills Richard G Drouin Steven T Kessel Charles C Krueger

Channelization for navigation and flood control has altered the hydrology and bathymetry of many large rivers with unknown consequences for fish species that undergo riverine migrations. In this study, we investigated whether altered flow distributions and bathymetry associated with channelization attracted migrating Lake Sturgeon (Acipenser fulvescens) into commercial navigation channels, pote...

Journal: :Comparative biochemistry and physiology. Part A, Molecular & integrative physiology 2016
Seunghyung Lee Silas S O Hung Nann A Fangue Liran Haller Christine E Verhille Juan Zhao Anne E Todgham

The objective of the current study was to investigate the effects of feed restriction on whole-organism upper thermal tolerance and the heat shock response of green and white sturgeon to determine how changes in food amount might influence physiological performance of each species when faced with temperature stress. Two parallel feed restriction trials were carried out for juvenile green (202g;...

2014
Lihong Yuan Xiujuan Zhang Linmiao Li Haiying Jiang Jinping Chen

Sturgeons are considered as living fossils and have very high evolutionary, economical and conservation values. The multiploidy of sturgeon that has been caused by chromosome duplication may lead to the emergence of new microRNAs (miRNAs) involved in the ploidy and physiological processes. In the present study, we performed the first sturgeon miRNAs analysis by RNA-seq high-throughput sequencin...

A.r Shenavar Masouleh Hossein Khara, M Alizadeh Roodposhti M Sattari

   Stability of bacterial flora in fish intestine is very important, because the intestine is an important organ for outbreak of microbial infections and other fish diseases especially when the fish have not been vaccinated. The aim of this study was to determine the bacterial flora of intestine in sturgeon juvenile in earthen ponds. The results can be applied to prevent the diseases occurren...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید