scholarly journals Morphology of the digestive tract of Barbus xanthopterus and Ctenopharyngodon idella

2012 ◽  
Vol 36 (0A) ◽  
pp. 187-196
Author(s):  
Abdulmotalib J. Al-Rudainy
Keyword(s):  
Digestive Tract ◽  
Body Length ◽  
Fish Species ◽  
Grass Carp ◽  
Alimentary Canal ◽  
Ctenopharyngodon Idella ◽  
Intestinal Length ◽  
Pharyngeal Teeth ◽  
Mouth Width

The aim of this study is to detected the morphology of the alimentary canal in twofreshwater fish species, Gattan Barbus xanthopterus and Grass carp Ctenopharyngodo idellawhich belonged to cyprinidae.. Increasing in mouth width with body length. Generallypharyngeal teeth arranged according to the following formulas. Gattan : 4-3-2 and 2-3-4Grass carp: 2-5 and 4-2. Variations in the shape, size of pharyngeal teeth were noticed. Theyappear short and wide compact in gattan, but hard and serrated, comb like in grass carp.Different intestinal length were seen indicating differ in feeding natures.

Invasive Asian Carps in North America

2011 ◽  
Keyword(s):  
Fish Species ◽  
Mississippi River ◽  
Grass Carp ◽  
Trophic Position ◽  
River System ◽  
Ctenopharyngodon Idella ◽  
Ecological Effect ◽  
Small Samples ◽  
Black Carp ◽  
Asian Carps

<em>Abstract</em>.—The black carp <em>Mylopharyngodon piceus </em>is a large (>1 m long) riverine fish from eastern Asia introduced into the United States via the aquaculture industry. A wild population has been present in the lower Mississippi River basin since the early 1990s, but little is known about the ecological effect of black carp in invaded environments. In its native range, black carp feed almost exclusively on mollusks. In U.S. waters, they likely prey on native mussels, but few wild-caught specimens have been examined by biologists and all have had empty gastrointestinal tracts. In lieu of stomach content data, we examined isotopic values (δ<sup>13</sup>C and δ <sup>15</sup>N) and mercury (Hg) concentrations in muscle tissue of black carp and 10 other large nonnative and native fish species captured in the Red–Atchafalaya River system of Louisiana, USA. Trophic position estimates derived from δ <sup>15</sup>N values ranged from 2.0 for grass carp <em>Ctenopharyngodon idella </em>to 4.8 for blue catfish <em>Ictalurus furcatus </em>and flathead catfish <em>Pylodictis olivaris</em>. Adult black carp had a δ <sup>15</sup>N value (13.2‰), indicating a trophic level of 3.5. Mean total Hg concentrations ranged from 0.02 µg/g in grass carp to 0.27 µg/g in bigmouth buffalo <em>Ictiobus cyprinellus</em>, in black carp 0.17 µg/g; Hg increased with increasing δ <sup>15</sup>N, indicating biomagnification. The limited numbers of taxa and small samples sizes, as well as constraints in methods used, do not allow confirmation that wild black carp are consuming native mollusks. However, our stable isotope results do provide evidence that its diet is similar to other large fish species inhabiting the Red–Atchafalaya system considered to be benthic invertivores, including some known to prey on freshwater mollusks (i.e., smallmouth buffalo <em>I. bubalus </em>and nonnative common carp <em>Cyprinus carpio</em>).

BIOLOGICAL MELIORATION OF THE AZOV LIMANS OF THE KRASNODAR KRAI AND THE POSSIBILITY OF USING FUNDS OBTAINED AS COMPENSATION FOR THE HARM TO THE WATER BIOLOGICAL RESOURCES

2017 ◽  
pp. 34-41 ◽  
Author(s):  
Oleg Sergeyevich Denisenko
Keyword(s):  
Fish Species ◽  
Grass Carp ◽  
Aquatic Vegetation ◽  
Silver Carp ◽  
Environmental Data ◽  
Ctenopharyngodon Idella ◽  
Complete Disappearance ◽  
Hypophthalmichthys Molitrix ◽  
Krasnodar Krai ◽  
Biological Resources

The author has carried out a retrospective analysis of environmental data about the Azov limans of the Krasnodar Krai. The increasing liman deterioration leading to their complete disappearance has been noted. Assessment of the priority of liman fish economy has been given. In terms of biological melioration there have been offered measures on stocking limans with herbivorous fish species of different age: grass carp Ctenopharyngodon idella and white silver carp Hypophthalmichthys molitrix , and determined necessary amounts of yearly stocking of the Azov limans. Modern data on the overgrowth in the water area of the Azov limans by higher aquatic vegetation have been presented in the context of the main groups of limans. The groups of limans were graded according to the priority of conducting biological melioration measures in them and practical recommendations were given on the quantity and places of stocking of the Azov limans grass carp and white silver carp depending on the degree of overgrowth. The necessity of using the funds received as compensation for the harm to water biological resources in the Krasnodar Krai for the artificial reproduction of grass carp and white silver carp and their introduction into the Azov limans has been substantiated. The article shows that stocking limans with herberous fish species will both ensure ameliorative effect and increase amount of fish commercial output.

scholarly journals Relationship between Total Length and Digestive Tract of Different Carnivorous Fishes

2013 ◽  
Vol 23 (1-2) ◽  
pp. 39-49
Author(s):  
MM Rahman ◽  
MMM Alam ◽  
T Zaman
Keyword(s):  
Digestive Tract ◽  
Rough Surface ◽  
Alimentary Canal ◽  
Anabas Testudineus ◽  
Total Length ◽  
Intestinal Length ◽  
Glossogobius Giuris ◽  
The Relationship

The study was conducted to find out the relationship between total length and alimentary canal of different carnivorous fishes. The morphometry associated with the feeding and digestion of one hundred eighty fishes of 9 species was studied. It was observed that well-defined sharp teeth were present on both jawsof the fishes examined. It was also found that the fishes had rough surface pharyngeal pads. The total length of Johnius koitor, Channa orientalis, Channapunctatus, Mvstus vittatus, Glossogobius giuris, Nandus nandus, Eleotris fusca and Anabas testudineus were 1.28 to 1.72, 2.90 to 3.17, 2.22 to 2.70, 2.00 to 2.40, 3.00 to4.50, 1.20 to 1.50, 1.40 to 2.36 and 1.48 to 1.64 times greater than the intestinal length, respectively and the intestinal lengths were 5.45 to 6.02, 1.30 to 1.70, 1.70 to 2.10, 3.60 to 4.10, 2.10 to 2.50, 2.90 to 3.20, 2.00 to 12.00 and 3.00 to 5.30 times longer than the stomach of the fishes, respectively. The total length of Xenontodon cancila was 9.20 to 9.80 times greater than the intestinal length and the stomach length was 1.90 to 2.20 times greater than the intestinal length with an average of 2.00 times.DOI: http://dx.doi.org/10.3329/pa.v23i1-2.16564Progress. Agric. 23(1 & 2): 39 – 49, 2012

scholarly journals The Influence of Digestive Tract Length of Larvivorous Fish Related to Predation Potential on Aedes aegypti Larvae

2019 ◽  
Vol 8 (2) ◽  
pp. 139-144
Author(s):  
Tri Baskoro Tunggul Satoto ◽  
Dyah Mahendrasari Sukendra ◽  
Ignatius Hardaningsih ◽  
Ajib Diptyanusa
Keyword(s):  
Aedes Aegypti ◽  
Digestive Tract ◽  
Fish Species ◽  
Virus Transmission ◽  
Tract Length ◽  
Larvivorous Fish ◽  
Intestinal Length ◽  
Biological Vector ◽  
Study Results ◽  
Post Test

Biological vector control by using larvivorous fish will be beneficial in reducing Aedes aegypti population, hence reducing risk of dengue virus transmission. It is important to select the larvivorous fish according to its digestive organ.Current study aimed to investigate the predation potential among the fish species and to identify the influence of the digestive tract length of the fish related to their predation potential. The research was an analytical observational study with post-test only design. Third stage larvae of Aedes aegypti were used as preys for tilapia (Oreochromis niloticus), common carper (Cyprinus carpio), and guppy (Poecillia reticulata). In association with their digestive tract length, predation potential of tilapia, common carper, and guppy showed statistical differences (P<0.05). Tilapia demonstrated highest predation of the larvae, followed by common carper and guppy. There are associations between difference in shapes of mouth and intestines, mouth width, intestinal length, and predation potential of these fish species. Current study results showed possible associations between digestive tract length of tilapia, common carper and guppy and predation potential on Aedes aegypti larvae, allowing these fish species to be used inbiological control of Aedes aegypti.  

scholarly journals Comparison of Some Biological Parameters between Young Grass Carp, Ctenopharyngodon idella (Valenciennes, 1884) fed on Artificial Diet and Alfalfa inEarthen Ponds at Basrah, Iraq

2022 ◽  
Vol 6 (1) ◽  
pp. 1-13
Author(s):  
Sadik Muhammed
Keyword(s):  
Survival Rate ◽  
Grass Carp ◽  
Alimentary Canal ◽  
Artificial Diet ◽  
Condition Factor ◽  
Relative Length ◽  
Ctenopharyngodon Idella ◽  
Biological Parameters ◽  
Alfalfa Plant ◽  
Grass Carp Ctenopharyngodon Idella

The current study aims to compare the relationships of some biological parameters of young grass carp, Ctenopharyngodon idella (Valenciennes, 1844) fed on artificial diet and alfalfa in earthen ponds. These parameters included length-weight relationship, relative length and weight of the alimentary canal, condition factor and survival rate. Results of lengthweight relationship showed that no significant differences (P>0.05) were recorded for the t-test for the ideal value of 3 for fishes fed on artificial diet or alfalfa plant. The condition factor of young grass carp fed on artificial diet ranged between 0.021 to 1.074, while for fishes fed on alfalfa plant was 0.023 to 1.270 for allometric and Fulton’s condition factor, respectively. Also, there was no significant difference (P>0.05) for fishes fed on both diets in all biological parameters, the relative length of the alimentary canal for fishes fed on artificial diet (1.65) and on alfalfa plant (1.69), while the relative weight of the alimentary canal were 0.0285 and 0.0218 for fishes fed on both diets, respectively. Results also showed that the Zihler coefficient were 7.43 and 7.62, respectively. The survival rate was 100% for both treatments.

scholarly journals Morphometric parameters comparisons of the digestive tract of four teleosts with different feeding habits

2010 ◽  
Vol 40 (4) ◽  
pp. 862-866 ◽  
Author(s):  
Alexssandro Geferson Becker ◽  
Jamile Fabbrin Gonçalves ◽  
Luciano Oliveira Garcia ◽  
Everton Rodolfo Behr ◽  
Dominguita Luhers Graça ◽  
...  
Keyword(s):  
Digestive Tract ◽  
Grass Carp ◽  
Feeding Habits ◽  
Morphometric Parameters ◽  
The Other ◽  
Ctenopharyngodon Idella ◽  
Hepatosomatic Index ◽  
Additional Information ◽  
Grass Carp Ctenopharyngodon Idella ◽  
Important Additional Information

The present study compared some morphometric parameters of the digestive tract of four teleosts with different feeding habits: traira (Hoplias malabaricus, carnivore), silver catfish (Rhamdia quelen, omnivore), hassar (Hoplosternum littorale, omnivore), and grass carp (Ctenopharyngodon idella, herbivore). The digestive tract was removed from fish collected from nature and fixed for some morphometric analyses, such as: intestinal quotient, intestinal area quotient, vilosity height, digestive somatic index, and hepatosomatic index. Grass carp showed the highest values of intestinal quotient and height vilosity. On the other hand, the intestinal area quotient was higher in traira than in the other species. The intestinal quotient can be used to estimate the feeding habit, and the intestinal area quotient, vilosity height and the relationships between digestive tract length and fish weight or digestive tract weight can provide important additional information to analyze the feeding habits.

scholarly journals Checklists of Parasites of Farm Fishes of Babylon Province, Iraq

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Furhan T. Mhaisen ◽  
Abdul-Razzak L. Al-Rubaie
Keyword(s):  
Common Carp ◽  
Fish Species ◽  
Grass Carp ◽  
Silver Carp ◽  
Ctenopharyngodon Idella ◽  
Hypophthalmichthys Molitrix ◽  
Fish Farms ◽  
Parasitic Fauna ◽  
Liza Abu ◽  
The Common

Literature reviews of all references concerning the parasitic fauna of fishes in fish farms of Babylon province, middle of Iraq, showed that a total of 92 valid parasite species are so far known from the common carp (Cyprinus carpio), the grass carp (Ctenopharyngodon idella), and the silver carp (Hypophthalmichthys molitrix) as well as from three freshwater fish species (Carassius auratus,Liza abu, andHeteropneustes fossilis) which were found in some fish farms of the same province. The parasitic fauna included one mastigophoran, three apicomplexans, 13 ciliophorans, five myxozoans, five trematodes, 45 monogeneans, five cestodes, three nematodes, two acanthocephalans, nine arthropods, and one mollusc. The common carp was found to harbour 81 species of parasites, the grass carp 30 species, the silver carp 28 species,L. abu13 species,C. auratusone species, andH. fossilisone species. A host-parasite list for each fish species was also provided.

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