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
  • 1
    facet.materialart.
    Unknown
    Study of the aquaculture of Pacific white legged prawn and comparison of its economical efficiency with Indian white prawn (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: Increasing of biodiversity and reduction of production costs and alo increasing of shrimp production are the main elements of production security and continuation of aquaculture of shrimp in the country. The hypothesis of this study is made on the basis of aquaculture of pacific white legged prawn , litopenaeus vannamei, and that is economically better than Indian white prawn in bushehr area . This study was carried out with the objectives of determination of bionormatives of pacific white legget prawn and yield estimation per squar meter and has been compared with Indian white prawn. During 1384-85. In this study , the field operations were carried out after primary preparation and water enrichment with the juvenile prawn (pL 15) with 20 prawn per squar meter in the 3 ponds . During the study the phisico-chemical parameters such as water temperature, ocsysion, pH,two times per day , in the morning and evening and salinity , transpiration and depth water , only one time in a day were measured .The health of prawns and also sampling for the calculation of body weight were carried out in every 10 days . Feeding in the first month was randomly and after that was being continued based on the mean of the body weight. The results of this study have showed that the growth of this species is very fast so that during 90 days with the capacity of 20 prawns per squar , meter, it can be reached to 19.59 gr body weight with the growth rate of 0.217 gr . The mean of total production was 2737.5 kg per hectar with FCR=1 . During this study the salinity from 33 ppt to 54 ppt , water temperature from 24.3°c to 35.2°c , occsysion from 2.4 to 11.89 mg/l , pH from 7.83 to 9.01 , transparency from 35 cm to 90 cm and water depth from 100cm to 145 cm were measured and recorded . In the second year, the comparison of growth rate of white legged prawn and Indian white prawn was carried out in the four ponds. The results of this study showed that during 110 days. White legged prawns was reached to average of body weight 14.66 gr and Indian white shrimp, reached to 10.75 gr. The economical assessment showed that white legged prawn has an economical advantage around 2.59 times during 110 days with the capacity of 35 prawns per hectar.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Western white legged shrimp ; Indian white shrimp ; Culture ; Bionormative ; Commercial production ; Aquaculture
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 44pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    facet.materialart.
    Unknown
    Determination of biotechniqe and bionormative of breeding and culturing of penaeus merguiensis de Man in Bushehr Area (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: To introduce the native commercial shrimp species to aquaculture industry, the Iranian Fisheries Research Organization conducted a project to investigate the possibility of reproduction and cultivation of the banana shrimp (Penaeus merguensis). The present work has been carried out from 21st March 2001 in two phase, reproduction and cultivation, in Iran Shrimp Research Center. The main objectives of this study was to find the possibility of reproduction and cultivation of banana shrimp with emphasis on its cost and benefit and to find if this species could be introduced to aquaculture industry in Iran. In this work, 42 brood stocks of banana shrimp caught in Jask waters and were transported to Bushehr. The shrimps were reproduced in aquaculture research station, and then cultivated in 0.4 ha ponds in Heleh region. Most of the broodstocks perished, due to long distance of Jask from Bushehr province, or had problem in hatching. Finally 8 of broodstock shrimps spawned . In 3 cases, the reared naplii larva suffered high mortality, but the other 5 spawners bread successfully. The post larvae were introduced to the shrimp ponds. The primary stocking was 360,000 larvae, introduced to each of two 4 m 3 tanks. The survival in both tanks for mysis stage was 83% but for PL stages, the survival was 5% for Tank 1 due to disease outbreak (until PL 24), and 62% for Tank 2. On 10 th June 2001 the PL 24 were stocked into the ponds but unfortunately due to adaptation problem, all of the shrimps perished. It seems that banana shrimp couldn t to be adapted to the pond condition in Heleh region. On the basis of the results, the reproduction of the banana shrimps is achievable, but broodstocks needs to be transferred to reproduction areas as soon as possible to reduce stress on the shrimps. Our finding shows that the optimum conditions of salinity and temperature for growth of the reared banana shrimp in Heleh region is 33ppt and 30 °C, respectively.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Banana shrimp ; Aquaculture ; Reproduction ; Penaeus merguensis
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 29pp.
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 3
    facet.materialart.
    Unknown
    Stock enhancement and estimation of growth rate of green tiger prawn (Penaeus semisulcatus) and banana shrimp (Fenneropenaeus merguiensis) released in the Persian Gulf (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25430 | 18721 | 2018-09-23 17:53:58 | 25430 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Present study was conducted in the Persian Gulf (Iranian waters) from 2009 to 2012. The main objective of the research was economical evalution of the stock enhancement of banana prawn (Fenneropenaeus merguiensis) and green tiger shrimp (Penaeus semisulcatus) in the studied area. Also tagging effects on the growth and mortality of tagged shrimp were studied. In banana prawn, broodstock shrimps were hatched in June. In July 2010 and 2011some of the juvenile of this species were marked by red fluorescent liquid injection and released were made at night in the estuaries of Tiab, Kolahi and Koolgan in the Hormozgan province. 84000 juveniles of banana prawn in 2010 and about 50000 in 2011 were released in this area. In Bushehr province waters, adults shrimp were reared and when juveniles reached to optimum size, some of them were tagged by red and blue coloures and were released in the coastal waters of Bandargah and Delvar. Tagging and releasing program of green tiger prawn was performed in 2010 and 2012. A total number of 8000 prawn in 2010 and about 30000 juveniles prawn in 2010 were released. Activities for recaptured shrimps were informed by posters describing the tagging program that were distributed to local peoples, as well as local magazines, and a tagging program awareness film was broadcast on national television three times prior to the shrimp fishing season and during catch season. To encourage people to report recaptures a reward of two handered thousent riales was paid for the return of each marked shrimp accompanied by information. Economical evaluation of banana prawn was performed based on releasing and recaptured program in 2011. As it mentioned in this year 50000 of juvenile shrimp were tagged and released. At the same time 4700000 of unmarked shrimp were released in this area. In the shrimp season 11 (./022%) of tagged shrimp were recaptured. Movements of tagged shrimp were northwesterly to released area. Weight average of tagged prawns was 1.2 gram. Mean weight of the recaptured prawns was 22.06±4.9 gram. Body weight Growth of the recaptured prawns was between 16-26 grams with the growth speed of 0.88-1.41 per week. The number of recaptured prawn to the released prawn was 0.022 percent. Based on the released prawns (4700000) to the recaptured percent (./022%), about 103400 of released shrimp with mean weight of 2.5 tones were observed in the Hormozgan shrimp catch. The average price of shrimp in the studied year in the local market was 85000 Rials per kilogram. These results showed that the ratio of profit is 210 milion riales. In the taggiing program of green tiger prawn in the Bushehr waters only one recaptured shrimp was observed in the catch season (2012). Total weigth and total length of this prawn was 99 gram and 22 centimeter respectively .given the small percentage of the recaptured, economical analyses was not performed on this species. The effects of tagging on the growth and mortality of green tiger prawn were studied. The present study was carried out in the shrimp research station in Bandargah and Abzistan shrimp Hatchery Company in Delvar during 2010 and 2012. The accuracy of the study was more rialable in 2012. In this year growth and mortality of juveniles that was marked by red and blue coloures, were studied in both area Bandargah and Delvar. In Bandargah, three tanks of 300 l each with 30 specimens were used for untagged shrimp as a control group, and tagged with injected liquid fluorescent during 98 days. Length and weigh of 10 specimens were measured evenly in different times. ANOVA results (α = 0.1 and α = 0.5) showed no significant differences between length growth of tagged shrimp and control group. The mortality of two groups was evaluated by numbering of remained shrimps and the average of survival was 52 percent in the tagged and 44.5 percent in tagged shrimps. In the Delvar station, Abzistan Company, the specimens were kept in the 9 tanks each 300 l that included of 30 untagged shrimps, 30 blue tagged shrimps and 30 red florescent tagged shrimp. The growth and mortality of this station were evaluated during 110 days. The growth rate of the specimens were measured and recorded evenly. The results of ANOVA (α = 0.1 and α = 0.5) showed no difference significantly in the weight growth of tagged and control groups. The mortality rates among the control group, red tagged and blue tagged were 63 percent, 59 percent and 40 percent. The mortality of the groups was differences in the two stations and it seems the management and environmental conditions were more affected on the mortalities. The results of the study show that the ratio of profit to the coast is 0.46 that is covering half of the coasts, so that the expenditures are two times more than profit. This result is the minimum of economical value of stock enhancement of shrimp. The results of study showed that the injected tags into the body tissue of shrimp has no affected on the growth rate and mortality.
    Keywords: Aquaculture ; Iran ; Persian Gulf ; Iranian waters ; Stock enhancement ; Banana prawn ; Fenneropenaeus merguiensis ; Green tiger prawn ; Penaeus semisulcatus ; Mortality ; Growth rate
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 107
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 4
    facet.materialart.
    Unknown
    Determination of biotechniqe and bionormative of breeding and culturing of Penaeus merguiensis de Man in Bushehr Area (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25208 | 18721 | 2018-09-05 16:18:49 | 25208 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: To introduce the native commercial shrimp species to aquaculture industry, the Iranian Fisheries Research Organization conducted a project to investigate the possibility of reproduction and cultivation of the banana shrimp (Penaeus merguensis). The present work has been carried out from 21st March 2001 in two phase, reproduction and cultivation, in Iran Shrimp Research Center. The main objectives of this study was to find the possibility of reproduction and cultivation of banana shrimp with emphasis on its cost and benefit and to find if this species could be introduced to aquaculture industry in Iran. In this work, 42 brood stocks of banana shrimp caught in Jask waters and were transported to Bushehr. The shrimps were reproduced in aquaculture research station, and then cultivated in 0.4 ha ponds in Heleh region. Most of the broodstocks perished, due to long distance of Jask from Bushehr province, or had problem in hatching. Finally 8 of broodstock shrimps spawned. In 3 cases, the reared naplii larva suffered high mortality, but the other 5 spawner’s bread successfully. The post larvae were introduced to the shrimp ponds. The primary stocking was 360,000 larvae, introduced to each of two 4 m 3 tanks. The survival in both tanks for mysis stage was 83% but for PL stages, the survival was 5% for Tank 1 due to disease outbreak (until PL 24), and 62% for Tank 2. On 10 th June 2001 the PL 24 were stocked into the ponds but unfortunately due to adaptation problem, all of the shrimps perished. It seems that banana shrimp couldn’t to be adapted to the pond condition in Heleh region. On the basis of the results, the reproduction of the banana shrimps is achievable, but broodstocks needs to be transferred to reproduction areas as soon as possible to reduce stress on the shrimps. Our finding shows that the optimum conditions of salinity and temperature for growth of the reared banana shrimp in Heleh region is 33ppt and 30 °C, respectively.
    Keywords: Aquaculture ; Iran ; Persian Gulf ; Banana shrimp ; Aquaculture ; Reproduction ; Penaeus merguensis
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 29
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 5
    facet.materialart.
    Unknown
    Study of the aquaculture of Pacific white legged prawn and comparison of its economical efficiency with Indian white prawn (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25207 | 18721 | 2018-09-05 16:22:47 | 25207 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Increasing of biodiversity and reduction of production costs and alo increasing of shrimp production are the main elements of production security and continuation of aquaculture of shrimp in the country. The hypothesis of this study is made on the basis of aquaculture of pacific white legged prawn, litopenaeus vannamei, and that is economically better than Indian white prawn in Bushehr area. This study was carried out with the objectives of determination of bionormatives of pacific white legget prawn and yield estimation per square meter and has been compared with Indian white prawn. During 1384-85. In this study, the field operations were carried out after primary preparation and water enrichment with the juvenile prawn (pL 15) with 20 prawn per squar meter in the 3 ponds. During the study the phisico-chemical parameters such as water temperature, ocsysion, pH,two times per day , in the morning and evening and salinity , transpiration and depth water , only one time in a day were measured .The health of prawns and also sampling for the calculation of body weight were carried out in every 10 days . Feeding in the first month was randomly and after that was being continued based on the mean of the body weight. The results of this study have showed that the growth of this species is very fast so that during 90 days with the capacity of 20 prawns per squar , meter, it can be reached to 19.59 gr body weight with the growth rate of 0.217 gr . The mean of total production was 2737.5 kg per hectar with FCR=1. During this study the salinity from 33 ppt to 54 ppt, water temperature from 24.3°c to 35.2°c, occsysion from 2.4 to 11.89 mg/l , pH from 7.83 to 9.01 , transparency from 35 cm to 90 cm and water depth from 100cm to 145 cm were measured and recorded . In the second year, the comparison of growth rate of white legged prawn and Indian white prawn was carried out in the four ponds. The results of this study showed that during 110 days. White legged prawns was reached to average of body weight 14.66 gr and Indian white shrimp, reached to 10.75 gr. The economical assessment showed that white legged prawn has an economical advantage around 2.59 times during 110 days with the capacity of 35 prawns per hectar.
    Keywords: Aquaculture ; Iran ; Bushehr ; Western white legged shrimp ; Indian white shrimp ; Culture ; Bionormative ; Commercial production ; Aquaculture
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 44
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 6
    facet.materialart.
    Unknown
    Investigating the application of spawning shelter of cattle fish for its enhancement of resources (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25318 | 18721 | 2018-09-08 16:45:23 | 25318 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: In this project, four types of structures, of 40 number was investigated. In a six month period, the structures were inspected 13 times. The total weight and number of eggs hatched on the structures were estimated to be 214.1kg and 94944 respectively. The weight and number of eggs settled on trap types were 141.9 and 60982 respectively, whereas, The eggs on cubical structures were estimated 56.7kg and 27088 ,on pyramid structures 7.9 and 3941 and then also were 6.9 kg and 3280 eggs on cylindrical structures respectively. It is also estimated that 358 eggs were settled on The connecting line weighting 0.5kg. In this report four types of structures was compared. As a result, the trap, cubical, pyramid and cylindrical structures had contributed to the settelment of 66, 27, 4 and 3 percent of eggs in weight. While 64, 29, 4 and 3 percent of eggs in number was settled on these structures respectively. Thus it is concluded that the trap structures fallowed by cubical ones had acted more effectively relative to other two. If based on the results of other studies, we assume 80% survival rate of eggs and average weight of 1.2 kg of survival growth cuttlefish, then it can be calculated that 160 structures can contribute to 91 tons increase in cuttlefish stock in one area of 4 to 5 acre. It is obvious that by planning an annual increase of the structures, it is possible to attract more spawners to spawn and produce more larvae. Moreover,The old structures will be covered by corals and barnacles and become Amore stalie and attractive spawning ground for cuttlefish.
    Keywords: Aquaculture ; Iran ; Spawning ; Cuttlefish ; Structures ; Trap ; Growth ; Produce ; Types ; Weight ; Eggs ; Survival rate
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 66
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 7
    facet.materialart.
    Unknown
    Investigation of two crop culture of western white shrimp (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25492 | 18721 | 2018-10-05 07:01:09 | 25492 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: Two crop culture of western white shrimp with 2 treatments and 2 replicates in each treatments in earthen ponds with area 0.4 hectares at a density of 20 pl 18 in each square meter were done. For the culture of shrimp in the second stage, the post larvae cultured in nursery pond with area of 0.25 hectare, and density of 96 post larvae in each square meter, and then transfer to the rearing ponds. In each pond, 2 aerators with potency of 3 horsepower fixed. Every day horsepower clarified at 21p.m. to 23 p.m and out at 6 a.m to 7 a.m. The first stage of culture begun in 19 April with pl 18. The yield pick-up after 96 days. The stocking of pl in the nursery ponds was done in 25 July with pl16 and after 38 days hunted and transferred to second stage culture. The second culture was done in 1 September and pick-up after 65 days. For feeding of shrimps we used commercial food numbers 4001 until 4006. In the first mount the feeding of shrimps were done as blind feed and then with the shrimps biomass and with research of feeding trays. Water temperature, dissolved oxygen and pH daily in 2 times at the morning (6 a.m) and evening (at 15 p.m) and the salinity, transparency and water depth 1 time daily measured. In the first culture period (96 days), the mean weight, length, daily weight gain, FCR, survival percent shrimp production were 14.03 gr, 12.08 cm, 0.15 gr, 1.02 gr, 92 percent and 2132 kilograms and in the second culture period (65 days) 14.55 gr, 12.48 cm, 0.22 gr, 0.84, 73 percent and 2675 kilogarms measuered respectively. Totally, in the second period culture the initial weight of shrimps was higher than the first period culture 1.95 gr and 0.008 gr respectively, therefore growth indexes in the second period were better than the first culture period. Coefficient of determination of weight and lenth of shrimps with increase of cultue days, in the first and second culture periods, in the total cases the number were higher than 0.97. This shown that the role of increase of days on the increase of weight and lenth is higher than 97 percent. Also, determination of product moment, showed that there is very strong correlation between increase of days and increase of weight and lenth and between weight and lenth (0.97 to 0.99).
    Keywords: Aquaculture ; Iran ; Western white shrimp ; Two crop culture ; Earthen Pond ; Density ; Larvae ; Nursery pond ; Feeding ; Temperature ; Dissolved oxygen ; pH ; Salinity ; Transparency ; Weight gain ; FCR ; Survival
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 35
    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...