ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Eggs  (3)
  • Acipenser persicus  (2)
Collection
Keywords
Years
  • 1
    facet.materialart.
    Unknown
    Survey on Acipenser persicus Populations by use of the Electrophoretic Technique and Morphological Characteristics (2018)
    Details
    Publication Date: 2021-05-19
    Description: For identifying the populations of the Acipenser persicus (Persian sturgeon) a survey were done by use of the electrophoretic technique and also morphological characteristics. The matrix was Acetate cellolus. 5ml blood from each gill arch were obtained and separated serum from blood. Separation of proteins were done, using a voltage of 180 volt during 15 minutes. After separating the solution proteins, the bands were stained by ponceau-s, Decolouring of plates was done by Acetic acid 5% during three steps. Scanning of the plates was done by densitometer with the wave length of 525 nm. Several genetic variations observed in the electrophorograms of samples. It seems that population of some localities can be characterized as a genetically distinguishable unit. Morphological differences observed between the fish which located in Sephid Rud region and Gorgan region, like the eye diameter and head height. The mean of eye diameter in Sephid Rud population was 20.16 mm and in Gorgan population 22.47 mm and the mean of head height was 8.15 cm and 7.25 cm respectively.
    Description: Published
    Keywords: Characterized ; Genetically ; Distinguishable unit ; Survey ; Acipenser persicus ; Population ; Electrophoretic Technique ; Morphological Characteristics ; Persian sturgeon ; Matrix ; Acetate cellolus ; Gill ; Blood serum ; Proteins ; Solution ; Ponceau-s ; Decolouring ; Acetic acid ; Scanning ; densitometer ; Length ; Genetic variation ; Electrophorograms ; Fish ; Eye diameter ; Head height
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.41-50
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    facet.materialart.
    Unknown
    Determination of the Spawning Time and Changes in the Reproduction Cycle of Ribbon Fish, Trichiurus lepturus, According to the Hepatosomatic Index and Gonadosomatic Index (2018)
    Details
    Publication Date: 2021-05-19
    Description: The ribbon fishes, belonging to the family Trichiuridae, are one of the most important protein resources in the Indian Ocean. A considerable density of the dominant species of this family, Trichiurus lepturus has been observed in the Oman Sea. During the conducted cruises in the northern part of the Oman Sea, Gonadosomatic index (GSI) and Hepatosomatic index (HSI) were estimated according to the size of the female groups of Trichiurus lepturus. GSI increases significantly from September to next April (P 〈0.05). Polymodal egg size frequency revealed prolong spawning time by the females. The HSI fluctuations are good indications for this type of reproductive behavior.
    Description: Published
    Keywords: Trichiuridae ; Trichiurus ; Density ; Species ; Spawning ; Gonadosomatic ; Hepatosomatic ; Size ; Eggs ; Fish ; Protein ; Determination ; Reproduction
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.63-74
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 3
    facet.materialart.
    Unknown
    Influence of lead nitrate upon organogenesis of Hypophthalmichthys molitrix (2021)
    In:  http://aquaticcommons.org/id/eprint/23546 | 18721 | 2018-07-03 14:57:55 | 23546 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-14
    Description: Eggs of Hypophthalmichthys molitrix have been subjected to lead nitrate in dosages of 0.01 ppm up to 20 ppm and it was observed that sample of more than 12 hours before were resistant to lead nitrate. Also it was observed that is sample of more orc than 32 hours lead increased mortality rate and abnormalities. These samples lost body length avid accumulated lead in their tissues. Lead affected thickness of retina layers in the eyes of swim fry's and in dosages of 1 to 20 ppm decreased thickness of these layers from 6% to 12%, Nearly 50 percent of new larvae in dosage of 1 ppm and 100 percent of them in dosage of 20 ppm showed symptoms of lordosis is abnormality. No meaningful histopathological effect was seen by affecting lead nitrate on eye lenses optic capsule, ventricles, notochord and yolk sac of these larvae, Average lead nitrate concentration in Anzali Wetland is 0.124+0.0507 ppm in surface waters and 0.1956t+0.385 ppm in deeper waters. This level of lead pollution in Azali Wetland caused 8 percent of silver carp fertilized eggs to death and it is demonstrated that at this rate of pollution nearly I8 percent of these eggs will be valueless from the fishery viewpoint.
    Keywords: Biology ; Fisheries ; Nitrate ; Eggs ; Tissues ; Lead ; Surface ; Pollution ; Organogenesis ; Histopathological ; Hypophthalmichthys molitrix ; Anzali Wetland ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 31-46
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 4
    facet.materialart.
    Unknown
    Survey on Acipenser persicus populations by use of the electrophoretic technique and morphological characteristics (2021)
    In:  http://aquaticcommons.org/id/eprint/23892 | 18721 | 2018-08-01 08:02:09 | 23892 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: For identifying the populations of the Acipenser persicus (Persian sturgeon) a survey were done by use of the electrophoretic technique and also morphological characteristics. The matrix was Acetate cellolus. 5ml blood from each gill arch were obtained and separated serum from blood. Separation of proteins were done, using a voltage of 180 volt during 15 minutes. After separating the solution proteins, the bands were stained by ponceau-s, Decolouring of plates was done by Acetic acid 5% during three steps. Scanning of the plates was done by densitometer with the wave length of 525 nm. Several genetic variations observed in the electrophorograms of samples. It seems that population of some localities can be characterized as a genetically distinguishable unit. Morphological differences observed between the fish which located in Sephid Rud region and Gorgan region, like the eye diameter and head height. The mean of eye diameter in Sephid Rud population was 20.16 mm and in Gorgan population 22.47 mm and the mean of head height was 8.15 cm and 7.25 cm respectively.
    Keywords: Fisheries ; Survey ; Acipenser persicus ; Population ; Electrophoretic Technique ; Morphological Characteristics ; Persian sturgeon ; Matrix ; Acetate cellolus ; Gill ; Blood serum ; Proteins ; Solution ; Ponceau-s ; Decolouring ; Acetic acid ; Scanning ; densitometer ; Length ; Genetic variation ; Electrophorograms ; Fish ; Eye diameter ; Head height ; Characterized ; Genetically ; Distinguishable unit ; Gorgan ; Sephid Rud ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 41-50
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 5
    facet.materialart.
    Unknown
    Determination of the spawning time and changes in the reproduction cycle of ribbon fish, Trichiurus lepturus, according to the hepatosomatic index and gonadosomatic index (2021)
    In:  http://aquaticcommons.org/id/eprint/23915 | 18721 | 2018-08-01 16:28:45 | 23915 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-15
    Description: The ribbon fishes, belonging to the family Trichiuridae, are one of the most important protein resources in the Indian Ocean. A considerable density of the dominant species of this family, Trichiurus lepturus has been observed in the Oman Sea. During the conducted cruises in the northern part of the Oman Sea, gonadosomatic index (GSI) and hepatosomatic index (HSI) were estimated according to the size of the female groups of Trichiurus lepturus. GSI increases significantly from September to next April (P 〈0.05). polymodal egg size frequency revealed prolong spawning time by the females. The HSI fluctuations are good indications for this type of reproductive behavior.
    Keywords: Biology ; Density ; Species ; Spawning ; Gonadosomatic ; Hepatosomatic ; Size ; Eggs ; Fish ; Protein ; Determination ; Reproduction ; Trichiuridae ; Trichiurus ; Oman Sea ; Indian Ocean ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 63-74
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...