A Cage Aquaculture Decision Support Tool (CADS_TOOL)

This tool consists of four modules: Site Classification, Site Selection, Holding Capacity and Economic Appraisal. The first two modules, Site Classification and Site Selection modules are linked and result in an assessment of the suitability of a particular site for cage aquaculture.The four modules are:1. Site Classification - allows a site to be classified into three suitability categories (Poor, Medium or Good) based on water quality, substrate quality, hydrometeorology and socioeconomics parameters.2. Site Selection - incorporates scores from the Site Classification module. User defined weights (index of relative importance) are assigned to the criteria in the Site Classification module and the overall suitability of the site is calculated.3. Holding Capacity - allows for the calculation of holding or carrying capacity based on four different models. For marine cages, the methods available are: Simplified MOM based on Stigebrandt et al (2004), Tookwinas et al (2004) and Hanafi et al (2006). Palatsu et al (2003) is used for freshwater cages in lakes/dams.4. Economic Appraisal - allows for the calculation of a break-even price and return on investment.The Cage Aquaculture Decision Support Tool was developed to allow marine and freshwater cage aquaculture managers to:1. classify a site2. select the best site from several site alternatives3. calculate the sustainable holding density of a chosen site and4. perform a basic economic appraisal of a farm at that site.Calculation methods for marine cages:Hanafi, A., Andriyanto, W., Syahidah, D., Sukresno, B. 2006. Characteristics and carrying capacity of Kaping Bay, Buleleng Regency, Bali for marine aquaculture development (in Indonesian). Kajian Keragaan dan Pemanfaatan Perikanan Budidaya (Editors: Ahmad, T., Syah, R., Mustafa, A.): 83-95.Stigebrandt A, Aure J, Ervik A, Hansen PK (2004) Regulating the local environmental impact of intensive marine fish farming III. A model for estimation of the holding capacity in the Modelling-Ongrowing fish farm-Monitoring system. Aquaculture, 234: 239-261.Tookwinas S, Songsangjinda P, Kajonwattanakul S, Singharachai C (2004) Carrying capacity estimation of marine finfish cage culture at Pathew Bay, Chumphon Province, Southern Thailand. Southeast Asian Fisheries Development Centre. TD/RES/91 LBCFM-PD No. 34.Calculation methods for freshwater cages in lakes/dams:Pulatsü S (2003) The application of a phosphorus budget model estimating the carrying capacity of Kesikköprü dam. Turkish Journal of Veterinary Animal Sciences, 27: 1127-1130Due to its age, AIMS no longer supports CADS TOOL. The software will no longer run on typical PC’s, however, the algorithms are specified in the paper to facilitate coding in Python, R, Matlab etc. Halmar Halide, A. Stigebrandt, M. Rehbein, and A.D. McKinnon. Developing a decision support system for sustainable cage aquaculture. Environmental Modelling & Software, 24(6):694-702, 2009.Dr Halmar Halide, (Universitas Hasanuddin , Makassar) can be contact via the Department of Physics at [e-mail]

本工具包含四大模块：场址分类、场址遴选、承载量测算与经济评价。其中前两个模块——场址分类与场址遴选模块相互关联，可用于评估特定场址开展网箱养殖的适宜性。四大模块详情如下：
1. 场址分类：基于水质、底质质量、水文气象与社会经济参数，将场址划分为三个适宜性等级（差、中等、优）。
2. 场址遴选：整合场址分类模块的评分结果。用户可自定义各分类准则的权重（相对重要性指数），并计算得出场址的整体适宜性得分。
3. 承载量测算：支持基于四种不同模型开展养殖承载量（carrying capacity）测算。针对海水网箱，可用模型包括基于Stigebrandt等人（2004）、Tookwinas等人（2004）与Hanafi等人（2006）研究的简化MOM模型；针对湖泊/水库中的淡水网箱，则采用Pulatsu等人（2003）提出的模型。
4. 经济评价：可用于计算盈亏平衡价格与投资回报率。

本网箱养殖决策支持工具（Cage Aquaculture Decision Support Tool）旨在为海水与淡水网箱养殖管理者提供以下功能：
1. 完成场址分类
2. 从多个候选场址中遴选最优场址
3. 测算选定场址的可持续养殖密度
4. 对该场址的养殖场开展基础经济评价

### 海水网箱养殖承载量测算方法
Hanafi, A., Andriyanto, W., Syahidah, D., Sukresno, B. 2006. 巴厘省布勒伦摄政区卡平湾海水养殖发展的特征与承载量[原文为印尼语]. 载于：Ahmad, T., Syah, R., Mustafa, A. 主编. 《水产养殖多样性研究与利用》. 83-95.
Stigebrandt A, Aure J, Ervik A, Hansen PK (2004) 集约化海水鱼类养殖局域环境影响调控 III：养殖-持续生产-监测系统承载量估算模型. 《水产养殖》（Aquaculture）, 234: 239-261.
Tookwinas S, Songsangjinda P, Kajonwattanakul S, Singharachai C (2004) 泰国南部春蓬府帕瑟夫湾海水硬骨鱼网箱养殖承载量估算. 东南亚渔业发展中心. TD/RES/91 LBCFM-PD No. 34.

### 湖泊/水库淡水网箱养殖承载量测算方法
Pulatsu S (2003) 磷收支模型在凯锡克普吕水库承载量测算中的应用. 《土耳其兽医与动物科学期刊》, 27: 1127-1130.

由于年代久远，澳大利亚海洋科学研究所（AIMS）已不再维护CADS TOOL。该软件无法在当前主流个人电脑上运行，但其算法已在论文中详述，便于在Python、R、Matlab等编程环境中复现代码。相关参考文献：Halmar Halide, A. Stigebrandt, M. Rehbein, 与A.D. McKinnon. 可持续网箱养殖决策支持系统的开发. 《环境建模与软件》, 24(6):694-702, 2009.

可通过印度尼西亚哈桑杜丁大学马卡萨分校物理系的电子邮箱[e-mail]联系Halmar Halide博士。