Purpleback Flying Squid Sthenoteuthis oualaniensis in the South China Sea: Growth, Resources and Association with the Environment
Abstract
:1. Introduction
2. Materials and Methods
2.1. Catch Data
2.2. Environmental Remote Sensing Data
2.3. Biological Data
2.4. Methods
3. Results
3.1. Temporal and Spatial Changes in Environmental Conditions
3.2. Growth Status of S. oualaniensis in the South China Sea
3.3. Temporal and Spatial Changes in CPUE
3.4. GAMs Analysis
3.5. Relationship between CPUE and Environment
4. Discussion
4.1. S. Oualaniensis Population Structure
4.2. Analysis of Growth Status of S. oualaniensis
4.3. Relationship between CPUE and Environment
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Data Availability Statement
Conflicts of Interest
References
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Month | Latitude (°N) | Longitude (°E) | Station | Fishing Times |
---|---|---|---|---|
January | 10.625–16.875 | 112.875–115.125 | 16 | 81 |
February | 10.125–11.625 | 112.125–114.625 | 9 | 141 |
March | 9.875–11.625 | 113.125–115.875 | 21 | 227 |
April | 10.125–11.375 | 113.875–115.875 | 16 | 300 |
May | 10.375–11.625 | 114.625–115.875 | 5 | 66 |
June | 10.375–11.125 | 114.125–115.875 | 11 | 62 |
July | 10.375–11.875 | 114.375–115.625 | 5 | 41 |
August | 10.125–11.625 | 114.125–114.875 | 6 | 132 |
September | 10.125–11.625 | 114.125–115.375 | 7 | 57 |
October | 9.875–16.875 | 112.375–115.625 | 21 | 103 |
November | 10.375–16.125 | 113.375–115.625 | 13 | 134 |
December | 10.375–13.875 | 113.375–114.625 | 9 | 102 |
Total | 9.875–16.875 | 112.375–115.875 | 139 | 1446 |
Equation | a | b | t0 | K | L∞ | AIC |
---|---|---|---|---|---|---|
Linear | 0 | 1.847 | - | - | - | 1202.278 |
Exponential | 40.781 | 0.016 | - | - | - | 1205.921 |
Power | 1.19 | 1.105 | - | - | - | 1200.628 |
Logarithmic | 28.666 | 0 | - | - | - | 1312.476 |
Logistic | - | - | 51.31 | 0.055 | 178.431 | 1199.549 |
Gompertz | - | - | 44.534 | 0.037 | 194.924 | 1199.847 |
Von Bertalanffy | - | - | 24.487 | 0.018 | 238.457 | 1200.241 |
Model | Adjusted R2 | AIC | GCV | Variance Explained (%) |
---|---|---|---|---|
Model 1 | 0.286 | 373.2 | 0.849 | 32.9 |
Model 2 | 0.369 | 359.5 | 0.774 | 42.5 |
Model 3 | 0.436 | 350.8 | 0.739 | 51.9 |
Model 4 | 0.489 | 338.6 | 0.68 | 57.2 |
Model 5 | 0.542 | 326 | 0.627 | 62.6 |
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Zhao, C.; Shen, C.; Bakun, A.; Yan, Y.; Kang, B. Purpleback Flying Squid Sthenoteuthis oualaniensis in the South China Sea: Growth, Resources and Association with the Environment. Water 2021, 13, 65. https://doi.org/10.3390/w13010065
Zhao C, Shen C, Bakun A, Yan Y, Kang B. Purpleback Flying Squid Sthenoteuthis oualaniensis in the South China Sea: Growth, Resources and Association with the Environment. Water. 2021; 13(1):65. https://doi.org/10.3390/w13010065
Chicago/Turabian StyleZhao, Chunxu, Chunyan Shen, Andrew Bakun, Yunrong Yan, and Bin Kang. 2021. "Purpleback Flying Squid Sthenoteuthis oualaniensis in the South China Sea: Growth, Resources and Association with the Environment" Water 13, no. 1: 65. https://doi.org/10.3390/w13010065
APA StyleZhao, C., Shen, C., Bakun, A., Yan, Y., & Kang, B. (2021). Purpleback Flying Squid Sthenoteuthis oualaniensis in the South China Sea: Growth, Resources and Association with the Environment. Water, 13(1), 65. https://doi.org/10.3390/w13010065