Assessment of spermatogenesis and plasma sex steroids in a seasonal breeding teleost: a comparative study in an area of influence of a tributary, downstream from a hydroelectric power dam, Brazil.

abstract：:Oxidation of rainbow trout haemoglobin (Hb) by nitrite proceeded via an initial lag phase followed by autocatalysis when the O2 saturation of the Hb was high. At low O2 saturations, the rate of methaemoglobin (metHb) formation was strongly reduced and autocatalysis was absent. Addition of adenosine triphosphate and gu...

journal_title：Fish physiology and biochemistry

authors： Jensen FB

更新日期：1993-08-01 00:00:00

abstract：:The present study aimed to assess the sewage effects of the Brazilian Antarctic Station Comandante Ferraz, Admiralty Bay, King George Island, on the hepatic metabolism (energetic, antioxidant, and arginase levels) and levels of plasma constituents of two Antarctic fish species Notothenia rossii and N. coriiceps. The b...

journal_title：Fish physiology and biochemistry

authors： Rodrigues E Jr,Feijó-Oliveira M,Suda CN,Vani GS,Donatti L,Rodrigues E,Lavrado HP

更新日期：2015-10-01 00:00:00

abstract：:This paper presents a comparative study of the roles of Cl- and HCO3- in the functioning of the GABAAR-associated Cl-/HCO3--ATPase of the plasma membranes of the olfactory sensory neurons (OSNs) and mature brain neurons (MBNs) of fish. The ATPase activity of OSNs and its dephosphorylation were increased twofold by Cl-...

journal_title：Fish physiology and biochemistry

authors： Menzikov S

更新日期：2018-04-01 00:00:00

abstract：:This study was conducted to determine if diets supplemented with turmeric powder (Curcuma longa) affected the reversible sterilization of Pseudotropheus socolofi. Three experimental diets were formulated to contain 0%, 10%, and 14% turmeric powder. The fish (mean weight 13 g) were randomly divided into groups consisti...

journal_title：Fish physiology and biochemistry

authors： Koca SB,Yigit NO,Ozdogan HBE,Ozmen O

更新日期：2020-08-01 00:00:00

abstract：:The major components of the cytochrome P450 (P450) system in liver microsomes of Atlantic salmon were studied using spectrophotometric, catalytic and immunochemical techniques. In juvenile fish sampled during the winter season, high basal activities of 7-ethoxyresorufin O-deethylase (EROD) were found. The Km for 7-eth...

journal_title：Fish physiology and biochemistry

authors： Goksøyr A,Larsen HE

更新日期：1991-12-01 00:00:00

abstract：:Two-dimensional gel electrophoresis (2-DE), matrix-assisted laser desorption/ionization tandem time-of-flight (MALDI-TOF/TOF) mass spectrometry, and database searching were used to analyze the effects of triploidization heat shock treatment on protein expression in rainbow trout eyed embryo and fry. After fertilizatio...

journal_title：Fish physiology and biochemistry

authors： Babaheydari SB,Keyvanshokooh S,Dorafshan S,Johari SA

更新日期：2017-04-01 00:00:00

abstract：:The present study evaluated, in an 18-month gilthead sea bream trial, the time course effects of genetics on individual size variation and growth compensation processes in families selected by heritable growth in the PROGENSA® breeding program. Families categorized as fast, intermediate, and slow growing had different...

journal_title：Fish physiology and biochemistry

authors： Perera E,Rosell-Moll E,Naya-Català F,Simó-Mirabet P,Calduch-Giner J,Pérez-Sánchez J

更新日期：2020-11-13 00:00:00

abstract：:The extensive use of pharmaceuticals in human and veterinary medicine may enter the aquatic environment and pose a serious threat to non-target aquatic organisms like fish. In this study, Indian major carp Cirrhinus mrigala was exposed to different concentrations (1, 10 and 100 μg L⁻¹) of most commonly used pharmaceut...

journal_title：Fish physiology and biochemistry

authors： Saravanan M,Ramesh M,Petkam R

更新日期：2013-12-01 00:00:00

abstract：:To confirm the existence of the tight junction (TJ) in middle intestine and obtain the genetic information of Claudin-3, Claudin-15a, Claudinb and Claudinc of grass carp, we observed the physical structure of TJ by transmission electron microscopy and cloned the partial cDNAs of the four Claudins using reverse transcr...

journal_title：Fish physiology and biochemistry

authors： Xu F,Ye YT,Cai CF,Wu P,Song L,Liu M,Yao LJ,Dong JJ,Huang YW,Gong Z,Qin J,Song L

更新日期：2014-12-01 00:00:00

abstract：:The present study made an attempt to measure the cortisol content, as an indicator of stress response, in rainbow trout embryos which were exposed to different densities and handling stress (air exposure) during incubation. The three densities of experimental embryos at early development stages were considered as 2.55...

journal_title：Fish physiology and biochemistry

authors： Ghaedi G,Falahatkar B,Yavari V,Sheibani MT,Broujeni GN

更新日期：2015-04-01 00:00:00

abstract：:Individual differences in behaviour and physiological responses to stress are associated with evolutionary adaptive variation and thus raw material for evolution. In farmed animals, the interest in consistent trait associations, i.e. coping styles, has increased dramatically over the last years. However, one of limita...

journal_title：Fish physiology and biochemistry

authors： Castanheira MF,Martínez Páramo S,Figueiredo F,Cerqueira M,Millot S,Oliveira CC,Martins CI,Conceição LE

更新日期：2016-10-01 00:00:00

abstract：:This study was performed to unravel the mechanism of the beneficial action of taurine on marine teleost fish, red sea bream (Pagrus major), by analyzing the hepatic metabolism. Moreover, the ameliorative effects of the nutrient against cadmium toxicity and bioaccumulation were further evaluated. The fish were fed a di...

journal_title：Fish physiology and biochemistry

authors： Hano T,Ito K,Kono K,Ito M,Ohkubo N,Mochida K

更新日期：2017-02-01 00:00:00

abstract：:Lectins are sugar-binding proteins that mediate pathogen recognition and cell-cell interactions. A rhamnose-binding lectin (RBL) gene and its promoter region have been cloned and characterized from snakehead Channa argus. From the transcription initiation site, snakehead rhamnose-binding lectin (SHL) gene extends 2,38...

journal_title：Fish physiology and biochemistry

authors： Jia WZ,Shang N,Guo QL

更新日期：2010-09-01 00:00:00

abstract：:The tilapia prolactin (PRL) cell responds rapidly (10-20 min) to small physiological changes in medium osmotic pressure (OP), releasing increasing quantities of hormone as medium OP is reduced. This release is rapidly (≤ 10 min) inhibited by somatostatin (SRIF). There is now extensive evidence that tilapia PRL cell fu...

journal_title：Fish physiology and biochemistry

authors： Grau EG,Helms LM

更新日期：1989-06-01 00:00:00

abstract：:In teleosts, cortisol is one of the key factors regulating the adaptation to environmental challenges, such as salinity changes. This paper compares interrenal function between fully adapted freshwater (FW) and sea water (SW) specimens of the euryhaline teleost Oreochromis mossambicus (tilapia), combining morphometric...

journal_title：Fish physiology and biochemistry

authors： Balm PH,Haenen HE,Wendelaar Bonga SE

更新日期：1995-02-01 00:00:00

abstract：:The dmrt (doublesex and mab-3 related transcription factor) gene family comprises several transcription factors that share a conserved DM domain. Dmrt1 is considered to be involved in sexual development, but the precise function of other family members is unclear. In this study, we isolated genomic DNA and cDNA sequen...

journal_title：Fish physiology and biochemistry

authors： Wen A,You F,Tan X,Sun P,Ni J,Zhang Y,Xu D,Wu Z,Xu Y,Zhang P

更新日期：2009-08-01 00:00:00

abstract：:Levels of catecholamines and tyrosine hydroxylase (TH) activity were measured in brain homogenates from female rainbow trout. In triploid fish or in diploid fish in ovarian recrudescence, the patterns of catecholamine content expressed as a function of in vitro TH activity vary in different areas of the brain. Km for ...

journal_title：Fish physiology and biochemistry

authors： Saligaut C,Bennani S,Bailhache T

更新日期：1993-07-01 00:00:00

abstract：:Variation in individual size has important consequences for a number of characteristics of fish, which can impact fish populations. The impact of fish size on recovery following exercise, however, is poorly understood, with little information existing on the recovery of ionic/osmotic variables. The goal of this study ...

journal_title：Fish physiology and biochemistry

authors： Gingerich AJ,Suski CD

更新日期：2012-04-01 00:00:00

abstract：:The study assessed the effects of surgically implanted dummy ultrasonic transmitters on physiological response of bighead carp Hypophthalmichthys nobilis in April 2011. Before the surgery, 15 blood samples were extracted randomly from 195 bighead carp samples, and then the rest of the fish were divided into three grou...

journal_title：Fish physiology and biochemistry

authors： Luo H,Duan X,Liu S,Chen D

更新日期：2014-10-01 00:00:00

abstract：:Measurement of serum biochemical parameters in response to metal exposures can be especially useful to help identify target organs of toxicity as well as the general health status of animals. Oreochromis niloticus were exposed to 5.0 mg/L Zn, 1.0 mg/L Cd, and 5.0 mg/L Zn + 1.0 mg/L Cd mixture for 7 and 28 days, and al...

journal_title：Fish physiology and biochemistry

authors： Firat Ö,Kargın F

更新日期：2010-09-01 00:00:00

abstract：:Three consecutive days of injections of triiodothyronine (T3)(0.038, 0.075, 0.15 and 1.54 nmoles/g) significantly elevated the acetylcholinesterase (AchE) activity in the brain of Singi fish, Heteropneustes fossilis (Bloch). The higher doses of 0.075, 0.15 and 1.54 nmoles of T3/g induced a greater increase in enzyme a...

journal_title：Fish physiology and biochemistry

authors： De S,Dasmahapatra AK,Medda AK

更新日期：1993-03-01 00:00:00

abstract：:Aryl hydrocarbon receptor (AhR) agonists are known to cause lethal cardiovascular deformities in fish after developmental exposure. Acute adult fish toxicity of AhR agonists is thought to be minimal, but limited evidence suggests sublethal effects may also involve the cardiac system in fish. In the present study, adul...

journal_title：Fish physiology and biochemistry

authors： Gerger CJ,Thomas JK,Janz DM,Weber LP

更新日期：2015-02-01 00:00:00

abstract：:Ubiquitin-conjugating enzymes (E2s) play an important role in the mechanism of ubiquitin transfer. Although in most species many of these enzymes share high sequence and structural conservation, their existence and functions in the lamprey remain unknown. In this study, we identified and characterized a ubiquitin-conj...

journal_title：Fish physiology and biochemistry

authors： Chen L,Wu F,Feng B

更新日期：2016-02-01 00:00:00

abstract：:Fish red blood cells (RBCs) exhibit an oxygen-dependent regulatory volume decrease (RVD) in hypoosmotic environment. In higher vertebrates, membrane-associated hemoglobin is involved in the regulation of osmotic ion movements across the cellular membrane. However, whether the hemoglobin conformational state plays a ro...

journal_title：Fish physiology and biochemistry

authors： Andreyeva AY,Soldatov AA,Krivchenko AI,Mindukshev IV,Gambaryan S

更新日期：2019-12-01 00:00:00

abstract：:Spermiation and changes in androgen (testosterone, T and 11-ketotestosterone, 11-KT) levels were studied in sterlet (Acipenser ruthenus) treated with GnRH agonist implants (DAla(6)-Pro(9)-LHRHa) at 25 and 75 μg kg(-1) b.w. and compared with those males treated with 4 mg kg(-1) b.w. of carp pituitary extract (CPE) and ...

journal_title：Fish physiology and biochemistry

authors： Alavi SMH,Hatef A,Mylonas CC,Gela D,Papadaki M,Rodina M,Kašpar V,Pšenička M,Podhorec P,Linhart O

更新日期：2012-12-01 00:00:00

abstract：:Plasma levels of L-thyroxine (T4) and 3,5,3'-triiodo-L-thyronine (T3) and the percentage of plasma T4 and T3 present in the free (dialyzable) form (%FT4 and %FT3) were measured in 16 species (11 families) of tropical marine teleosts from an inshore Barbados reef. Mean plasma T4 varied from 0.2 ng/ml to 42 ng/ml; mean ...

journal_title：Fish physiology and biochemistry

authors： Eales JG,Shostak S

更新日期：1987-05-01 00:00:00

abstract：:The toxic effects of thyroxine (T4F), levothyroxine (L-T4), and thyroxine complexed into β-cyclodextrin (β-CD-T4) on the biological parameters of tambaqui (Colossoma macropomum) were evaluated. The animals were exposed to a chronic toxicity test based on concentrations of influent (60 ng/L) for 2 months. Weight, total...

journal_title：Fish physiology and biochemistry

authors： Santos TP,Soares PRL,da Silva MCG,da Silva SCBL,de Andrade ALC,Dos Santos AR,da Silva JF,da Silva Oliveira EG,da Silva Souza EHL,de Sá FB,Cadena MRS,Cadena PG

更新日期：2019-06-01 00:00:00

abstract：:In this study, for the first time, both neuropeptides isotocin (IT) and arginine vasotocin (AVT) have been identified and measured in urophysis, the neurohaemal organ of the caudal neurosecretory system of teleost fish. So far, AVT, but not IT, was quantified by radioimmunoassay (RIA) in urophysis of several fish spec...

journal_title：Fish physiology and biochemistry

authors： Gozdowska M,Ślebioda M,Kulczykowska E

更新日期：2013-08-01 00:00:00

abstract：:An ovarian cell line was successfully developed from the juvenile ovary of Southern catfish (SCO1) (Silurus meridionalis), which was designated as SCO1. The cell line multiplied preferentially in L-15 medium with 15 % fetal bovine serum at 28 °C for more than 70 passages over a period of 420 days. SCO1 showed fibrobla...

journal_title：Fish physiology and biochemistry

authors： Wei J,Qi W,Zhou Y,Zhang X,Dong R,Zhou L,Wang D

更新日期：2014-10-01 00:00:00

abstract：:The Brazilian freshwater fish diversity is the richest in the world. Only 0.7% of all Brazilian species have had any aspect of their sperm biology addressed up to this date. The majority of the fish species described in this review migrate during the spawning season (a phenomenon known as piracema). Urbanization, poll...

journal_title：Fish physiology and biochemistry

authors： Viveiros AT,Godinho HP

更新日期：2009-03-01 00:00:00