scholarly journals The Anatomy of Respiratory Organ of Climbing Perch (Anabas testudineus)

Author(s):  
Erica Nuralam ◽  
Muhammad Ja’far Luthfi

The study aims to find out about the anatomical and histological structure of gill organ and labyrinth in Anabas Testudineus. The organ used is gill and labyrinth of climbing perch. The histological observation is done by making the histological preparation applied to a Hematoxylin-Eosin staining. The result of this study shows that the anatomical gill of climbing perch consists of the gill filaments and gill rakers attaching to the gill arch and the cartilage fold which are shaped like a rose. Then, the histological observation of climbing perch gill consists of the gill filament and gill arch. The gill arch is composed of gill rakers, mucosal epithelium, adipose tissue, basal membrane, mucous cell, submucosa, artery, and bone tissue. The gill filament consists of primary and secondary lamella. Primary lamella is composed of cartilage coated by perichondrium, central venous sinus, chloride cell, while secondary lamella is composed of squamous epithelium cell, mucous cell, pillar cell, and erythrocyte. Labyrinth is made up of adipose tissue, elastic cartilage, perichondrium, epithelium, blood vessel, connective tissue, and mucous cell.


Author(s):  
Orangel Aguilera ◽  
Oscar David Solano ◽  
Julio Valdez

The genus Stellifer is charaterized by its lack of mental barbels, interorbital width 3.5 or less in head, swim bladder with two chambers, the anterior with a pair of diverticula located posterolateralÿ, cavernous head, gill rakers long and slender; otoliths sagittae and lapillus enlarged. A new species of Stellifer is described. This species is characterized by the presence of a pair of small bulb-like diverticula in the anterior chamber of the swim bladder, dark first gill arch, with 42-49 gill rakers, the longest of them larger in length than the gill filament located at angle of arch, and four mental pores. Differs from other species of the genus by the number of gill rakers. The more similar species is S. rastrifer of which differs in that it has different number of preopercular spines and mental pores.



2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Abhishek Mazumder ◽  
Hrishikesh Choudhury ◽  
Abhinit Dey ◽  
Dandadhar Sarma

AbstractDiseased Anabas testudineus exhibiting signs of tail-rot and ulcerations on body were collected from a fish farm in Assam, India during the winter season (November 2018 to January 2019). Swabs from the infected body parts were streaked on sterilized nutrient agar. Two dominant bacterial colonies were obtained, which were then isolated and labelled as AM-31 and AM-05. Standard biochemical characterisation and 16S rRNA and rpoB gene sequencing identified AM-31 isolate as Aeromonas hydrophila and AM-05 as Aeromonas jandaei. Symptoms similar to that of natural infection were observed on re-infecting both bacteria to disease-free A. testudineus, which confirmed their virulence. LC50 was determined at 1.3 × 104 (A. hydrophila) and 2.5 × 104 (A. jandaei) CFU per fish in intraperitoneal injection. Further, PCR amplification of specific genes responsible for virulence (aerolysin and enterotoxin) confirmed pathogenicity of both bacteria. Histopathology of kidney and liver in the experimentally-infected fishes revealed haemorrhage, tubular degeneration and vacuolation. Antibiotic profiles were also assessed for both bacteria. To the best of our knowledge, the present work is a first report on the mortality of farmed climbing perch naturally-infected by A. hydrophila as well as A. jandaei, with no records of pathogenicity of the latter in this fish.



1987 ◽  
Vol 65 (6) ◽  
pp. 1331-1336
Author(s):  
Z. Kabata

The morphology of the developmental stages of Neobrachiella robusta (Wilson, 1912) (Copepoda: Siphonostomatoida) is described. The copepod is parasitic on the gill rakers of Sebastes alutus (Gilbert, 1890) (Teleostei: Scorpaeniformes). The life cycle of this copepod consists of a copepodid stage, followed by four chalimus stages and a relatively long preadult stage, which undergoes extensive metamorphosis. The copepods aggregate on the outer row of long gill rakers of the first gill arch, as many as 97% of them being attached to these rakers. Some of the rakers become distorted, but a connection between the presence of N. robusta and these abnormalities could not be established.





1962 ◽  
Vol 40 (5) ◽  
pp. 785-802 ◽  
Author(s):  
Valerie M. Pasztor ◽  
H. Kleerekoper

The gill filament musculature of several freshwater teleosts was studied using visual and oscillographic methods. Continual activity was observed in the small muscles connecting the two hemibranch rows on each gill arch in all the fish examined. In those fish where the gill filament rows are bound together by a sheet of connective tissue, there was an additional active series of muscles situated on the oral surface of each gill arch. Both series of muscles contracted once every breathing cycle whether the fish was in water or in air.It is proposed that these muscles have two important functions. Firstly, they assist in maintaining an even spacing of the gill hemibranchs at all phases of the breathing cycle, thus insuring that all the lamellae receive adequate ventilation. Secondly, they take part in a regulatory mechanism which controls the amount of water which will be presented to the respiratory surfaces of the lamellae.



2016 ◽  
Vol 50 (5) ◽  
pp. 351-356
Author(s):  
Nitikorn Piwpong ◽  
Jarunee Chiayvareesajja ◽  
Sommai Chiayvareesajja


2019 ◽  
Vol 7 (1) ◽  
Author(s):  
M. Indra Wahyu Pratama ◽  
Dade Jubaedah ◽  
Mohamad Amin

Pratama et al, 2018. The Effect of Different C/N Ratio in for Biofloc of Formation Culture Media to the Growth and Survival Rate of Juvenile Climbing Perch (Anabas testudineus). JLSO 7(1): Climbing perch fish resources still have a problem due to this fish is still obtained only through capture and also the growth of climbing perch fish is slow. The solutions to increase the growth of the climbing perch fish is by applying biofloc technology for climbing perch fish culture. The purpose of this research was to know the effect of different C/N ratio on the growth of climbing perch fish (Anabas testudineus) juvenille with biofloc farming system. This research used a completely randomized design consist of four treatments and three replications. The treatments were without molase (P0), molase with C/N ratio 15 (P1), C/N 20 (P2) and C/N ratio 25 (P3). The results showed that C / N ratio 20 was the best treatment with absolute length of growth of 1.33 cm, absolute growth of weight 1.92 g, survival rate of 99.17% and feed efficiency 138.06%.



2019 ◽  
Vol 64 (2) ◽  
pp. 281-286
Author(s):  
Thumronk AMORNSAKUN ◽  
Sajeenuth SRITHONGTHUM ◽  
Ponpanom PROMKAEW ◽  
bin HASSAN ◽  
Hajime MATSUBARA ◽  
...  


Fisheries ◽  
2020 ◽  
Vol 2020 (4) ◽  
pp. 85-89
Author(s):  
Dmitry Zworykin

The dynamics of publication activities devoted to the climbing perch from 1969 to 2018 is analyzed. It is shown that sharp increases in the number of publications at the turn of the millennium coincide with changes in international and national strategies for tropical fish aquaculture, focusing on cultivation of fast-growing native fish species and small farms support. These programs have led to a surge in applied research and publications on the climbing perch, as one of the most promising species. Unfortunately, some of these papers have been published in journals that are unreliable according to the criteria of contemporary science and contain controversial conclusions. Certain consequences of these trends are noted and challenges outlined.



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