Progress of On-Going Projects

ACRSP – UM/AIT Team

1. On-farm trials of integrated 1. On-farm trials of integrated cage-cum-pond culture systemscage-cum-pond culture systems On-farm trial of integrated cage-cum-pond culture systems

with high-valued climbing perch (Anabas testudineus) in cages and carps in ponds in Bangladesh

On-farm trial of integrated cage-cum-pond culture systems with high-valued African catfish (Clarias gariepinus) in cages and carps in ponds in Nepal

On-farm trial of integrated cage-cum-pond culture systems with high-valued climing perch (Anabas testudineus) in cages and Nile tilapia (Oreochromis niloticus) in ponds in Vietnam

Progress: completed

2. E2. Establishment of links with stablishment of links with CChinese hinese institutions in collaboration on aquaculture institutions in collaboration on aquaculture and environmental impactsand environmental impacts

Objectives Objectives – To establish links with Chinese institutions To establish links with Chinese institutions

for future ACRSP research; for future ACRSP research; – To identify potential ACRSP sites in ChinaTo identify potential ACRSP sites in China– To conduct preliminary site evaluation;To conduct preliminary site evaluation;– To identify environmental problems caused To identify environmental problems caused

by aquaculture/fisheries activities and by aquaculture/fisheries activities and develop researchable topics.develop researchable topics.

Progress: CompletedProgress: Completed

3. I3. Impact of mpact of NNile tilapia (ile tilapia (OOreochromis reochromis niloticusniloticus) introduction on the indigenous ) introduction on the indigenous fish species of fish species of BBangladesh and angladesh and NNepalepal

Objectives Objectives – To assess the impact of the introduction of To assess the impact of the introduction of

mixed-sex and male mono-sex Nile tilapia on mixed-sex and male mono-sex Nile tilapia on three important indigenous fish species of three important indigenous fish species of Bangladesh and Nepal. Bangladesh and Nepal.

This study consists of three experiments, and This study consists of three experiments, and has been mainly conducted by Mr. S. A. has been mainly conducted by Mr. S. A. Shameem Ahmad, PhD student supported by Shameem Ahmad, PhD student supported by ACRSP.ACRSP.

3. I3. Impact of mpact of NNile tilapia (ile tilapia (OOreochromis reochromis niloticusniloticus) introduction on the indigenous ) introduction on the indigenous fish species of fish species of BBangladesh and angladesh and NNepalepal

Three experiments: Three experiments: – Experiment 1: Experiment 1: conductconducted in nine 100 med in nine 100 m22 earthen ponds at earthen ponds at

BBAUAU to assess the impact of mixed-sex and male mono- to assess the impact of mixed-sex and male mono-sex Nile tilapia on mola (sex Nile tilapia on mola (Amblypharyngodon molaAmblypharyngodon mola), chela ), chela ((Chela cachiusChela cachius) and punti () and punti (Puntius sophorePuntius sophore))..

– Experiment 2: conducted at BAU to assess the impact of Experiment 2: conducted at BAU to assess the impact of mixed-sex Nile tilapia on mola, chela and punti in mixed-sex Nile tilapia on mola, chela and punti in simulated open water environments. simulated open water environments.

– Experiment 3: conducted at IAAS to assess the impact of Experiment 3: conducted at IAAS to assess the impact of mixed-sex and male mono-sex Nile tilapia on mixed-sex and male mono-sex Nile tilapia on Puntius Puntius sophoresophore, , Esomus danricusEsomus danricus and and Barilius barnaBarilius barna. .

Progress: on-goingProgress: on-going

4. N4. New paradigm in farming of freshwater prawn ew paradigm in farming of freshwater prawn ((MMacrobrachium rosenbergiiacrobrachium rosenbergii) with closed and ) with closed and

recycle systemsrecycle systems Three surveysThree surveys

– Bangladesh, conducted by Md. Asad, MSc studentBangladesh, conducted by Md. Asad, MSc student– Thailand, conducted by Ms Vicki, UM MSc studentThailand, conducted by Ms Vicki, UM MSc student– Vietnam, conducted by a group of staff.Vietnam, conducted by a group of staff.

Progress: Report writingProgress: Report writing Publications: Publications:

– GAA Magazine: Bangladesh and Thailand Surveys GAA Magazine: Bangladesh and Thailand Surveys

5. O5. Optimization of phosphorus fertilization regime ptimization of phosphorus fertilization regime in fertilized in fertilized NNile tilapia (ile tilapia (OOreochromis niloticusreochromis niloticus) )

ponds with supplemental feedponds with supplemental feed Objectives Objectives

– To determine effects of different rates of To determine effects of different rates of phosphorus fertilizer application on Nile tilapia phosphorus fertilizer application on Nile tilapia production, pond water quality parameters and production, pond water quality parameters and nutrient utilization efficiency under supplemental nutrient utilization efficiency under supplemental feeding, feeding,

– To evaluate the cost and return of Nile tilapia To evaluate the cost and return of Nile tilapia production. production.

Conducted by a AIT MSc student Miss Moe Conducted by a AIT MSc student Miss Moe Thidar Oo.Thidar Oo.

Progress: completedProgress: completed

6. 6. UUse of rice straw as a resource for se of rice straw as a resource for freshwater pond culturefreshwater pond culture

Objectives Objectives – tto investigate the role of rice straw in fish ponds o investigate the role of rice straw in fish ponds – to develop a low cost aquaculture system using rice straw to develop a low cost aquaculture system using rice straw

to enhance fish production through reduced turbidity as to enhance fish production through reduced turbidity as well as enhanced biofilm and periphyton development. well as enhanced biofilm and periphyton development.

Four experiments conducted in BAU and AITFour experiments conducted in BAU and AIT Conducted by a Bangladesh MSc student Mr. Conducted by a Bangladesh MSc student Mr.

Shahabuddin at AIT and Nepalese PhD student Shahabuddin at AIT and Nepalese PhD student Mrs. Rai Sunila at BAU. Mrs. Rai Sunila at BAU.

Progress: completedProgress: completed

7. Student exchange program to strengthen 7. Student exchange program to strengthen capacity in environmental studies of capacity in environmental studies of

aquaculture in Chinaaquaculture in China Student exchange from UM to HNU, Hainan of China: Student exchange from UM to HNU, Hainan of China: Ms Lauren Theodore – UM MSc studentMs Lauren Theodore – UM MSc student

– Working with a group of undergraduate students in HNU.Working with a group of undergraduate students in HNU.

Conducted research on: Integrated shrimp/Conducted research on: Integrated shrimp/GracilariaGracilaria culture culture in Hainan province of Chinain Hainan province of China– SurveySurvey– Field measurementsField measurements

Progress: thesis / report writing Progress: thesis / report writing

Abalone – Gracilaria – Shrimp orAbalone – Gracilaria – Shrimp orShrimp – Gracilaria - ShrimpShrimp – Gracilaria - Shrimp

7. Student exchange program to strengthen 7. Student exchange program to strengthen capacity in environmental studies of capacity in environmental studies of

aquaculture in Chinaaquaculture in China Student exchange from HAU (Wuhan, China) to AIT: Student exchange from HAU (Wuhan, China) to AIT: Miss Cao Ling – MSc student at HAUMiss Cao Ling – MSc student at HAU Conducted research on application of phytase in Nile tilapia Conducted research on application of phytase in Nile tilapia

feedfeed– Pre-treatment of plant feedstuff using phytase Pre-treatment of plant feedstuff using phytase – Apparent digestibility of Nile tilapia fed the all-plant diet prepared by Apparent digestibility of Nile tilapia fed the all-plant diet prepared by

phytase pre-treated plant feedstuff phytase pre-treated plant feedstuff – Phytase replacement of dicalcium phosphate in all-plant diets for Nile Phytase replacement of dicalcium phosphate in all-plant diets for Nile

tilapiatilapia Progress:Progress:

– An article “Application of microbial phytase in fish feed” has been An article “Application of microbial phytase in fish feed” has been published in Enzyme and Microbial Technologypublished in Enzyme and Microbial Technology

– An article “Effects of pretreatment in all-plant feedstuff with An article “Effects of pretreatment in all-plant feedstuff with microbial phytase on phosphorous utilization and growth microbial phytase on phosphorous utilization and growth performance of Nile tilapia (performance of Nile tilapia (Oreochromis niloticus)Oreochromis niloticus)” has been ” has been submitted to Aquaculture Nutrition.submitted to Aquaculture Nutrition.

8. Aquaculture CRSP sponsorship of the Second 8. Aquaculture CRSP sponsorship of the Second

International Symposium on Cage Aquaculture in AsiaInternational Symposium on Cage Aquaculture in Asia Organized a session on environmental impacts and Organized a session on environmental impacts and

management, which was co-chaired by Jim and Kwei;management, which was co-chaired by Jim and Kwei; Provide travel grants to five invited speakers – CRSP Provide travel grants to five invited speakers – CRSP

PIs; PIs; Provided travel grants to four Chinese researchers Provided travel grants to four Chinese researchers

including one MSc student;including one MSc student; Gave three ACRSP Environment Awards Gave three ACRSP Environment Awards Gave three ACRSP Best Student Paper AwardsGave three ACRSP Best Student Paper Awards

9. Promoting environmentally-friendly integrated cage-9. Promoting environmentally-friendly integrated cage-

cum-pond culture systemscum-pond culture systems On-goingOn-going Preparing a manual; Preparing a manual; Preparing brochures in Bangladeshi, Nepalese and Preparing brochures in Bangladeshi, Nepalese and

Vietnamese;Vietnamese; Planning 3 one-day workshops in Bangladesh, Nepal Planning 3 one-day workshops in Bangladesh, Nepal

and Vietnam in April/May. and Vietnam in April/May.

10. Student research to assess environmental impacts of 10. Student research to assess environmental impacts of cage aquaculture in Tong An Bay in Fujan province of cage aquaculture in Tong An Bay in Fujan province of

ChinaChina On-goingOn-going Objectives:Objectives:

– To investigate the integrated cage/seaweed culture system, To investigate the integrated cage/seaweed culture system, – To investigate the environmental conditions in Mei Zhou bay for To investigate the environmental conditions in Mei Zhou bay for

cage culture, cage culture, – To assess the potential effects of seaweed on reuse of To assess the potential effects of seaweed on reuse of

nutrients derived from cage culture, nutrients derived from cage culture,

– To enhance the environmental awareness of undergraduate To enhance the environmental awareness of undergraduate

and graduate students, farmers and local government staff.and graduate students, farmers and local government staff. Location changed to Mei Zhou Bay; Location changed to Mei Zhou Bay; XMU MSc student (Miss Cai A-Yuan) thesis research, XMU MSc student (Miss Cai A-Yuan) thesis research,

Xiamen, ChinaXiamen, China

10. Student research to assess environmental 10. Student research to assess environmental impacts of cage aquaculture in Tong An Bay in impacts of cage aquaculture in Tong An Bay in

Fujan province of ChinaFujan province of China