A Comparative Study on the Ecosystem-based Fisheries Risk Analysis of Algerian Coastal Fisheries
- Alternative Title
- 알제리 연안 어업의 생태계 기반 어업 위험도 분석 비교연구
- Abstract
- There is a growing need to evaluate how fishing activities is being affecting the ecosystem. The thesis seeks to frame the assessment of risk status of three main fisheries operating in the Algerian coastal ecosystem, which are trawl, purse seine, and small-scale fisheries. The ecosystem-based fisheries assessment was developed by (Zhang, et al., 2009) have been suggested to conduct the present study. Tier 2 process analysis has been used, since the qualitative data was not rich. Across the nested risk design, the trawl, purse seine, and small-scale fisheries risk indices were projected in the yellow zone. The highest FRI were observed in trawl fishery (1.363), followed by the small-scale fishery (1.309), than the lowest value were found in the purse seine fisheries (1.114). The purse seine fishery risk index differed significantly from both of trawl and small-scale fisheries risk indices, whereas there was no significant difference between trawl fishery risk index and small-scale fishery risk index. A proper management measures were to improve the fisheries risk situations.
- Issued Date
- 2017
- Awarded Date
- 2017. 2
- Type
- Dissertation
- Keyword
- Algerian coastal ecosystem assessment of risk status trawl purse seine small-scale fisheries 알제리 어업
- Publisher
- 부경대학교 글로벌수산대학원
- Affiliation
- 부경대학교 글로벌수산대학원
- Department
- 글로벌수산대학원 국제수산과학협동과정
- Advisor
- 장창익
- Table Of Contents
- 1. Introduction 1
1.1 Background of the study 1
1.2 History of the study 1
1.3 Rationale for the study 4
1.4 Objective of the study 5
1.5 EBFM 6
1.6 Coastal ecosystem 7
2. Materials and Methods 9
2.1 Material 9
2.1.1 Study area and data source 9
2.2 Method 12
2.2.1 Assessment for Algerian coastal ecosystem fishery by the Tier 02 analysis 17
2.2.2 Target and limit reference points to conduct the risk assessment 23
2.2.3 Target and limit reference points for indicators of sustainability 24
2.2.4 Target and limit reference points for indicators of biodiversity 25
2.2.5 Target and limit reference points for indicators of habitat quality 25
2.2.6 Target and limit reference points for indicators of socio-economic benefits 26
3. Results 27
3.1 Assessment of risk scores to each indicator of Algerian coastal ecosystem 27
3.2 Assessment of objectives risk indices ORIs by Tier 2 approach 28
3.2.1 Objective risk indices (ORI’s) assessment by Tier 02 approach for 09 assessed species caught by trawl 29
3.2.2 Objective risk indices (ORI’s) assessment by Tier 02 approach for 05 assessed species caught by purse seine 32
3.2.3 Objective risk indices (ORI’s) assessment by Tier 02 approach for seven assessed species caught by small scale-fisheries 34
3.2.4 Number of species by risk zones for four objectives 37
3.3 Assessment of species risks indices (SRIs) of each fishery assessed by Tier 2 approach 38
3.3.1 Species risk indices (SRI’s) assessment by Tier 02 approach for nine assessed species caught by trawl 39
3.3.2 Species risk indices (SRI’s) assessment by Tier 02 approach for five assessed species caught by purse seine 39
3.3.3 Species risk indices (ORI’s) assessment by Tier 02 approach for seven assessed species caught by small scale-fisheries 40
3.4 Evaluation of Algerian coastal fisheries and ecosystem indices based on estimated fisheries risk indices and ecosystem risk index 42
4. Discussion 45
5. References 49
6. Acknowledgement 51
- Degree
- Master
- Appears in Collections:
- 글로벌수산대학원 > 국제수산과학협동과정
- Files in This Item:
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