Table 3. Annual catch reconstructions of mobulid rays in Sri Lanka.
Simple refers to the simple extrapolation described in equation 8. All other columns refer to the state-space model of fisheries landings: minimum and median values of the posterior distribution, and 50% and 90% credible intervals for each year and each species. Values represent the total model-estimated number of individuals landed across all sampled markets and landing sites. No data were collected in 2016, so the sample extrapolation was not possible in that year.
| Species/Year | Simple | Minimum | Median | 50% Cis | 90% Cis |
|---|---|---|---|---|---|
| Mobula birostris | |||||
| 2011 | 5,714 | 610 | 4,461 | 2,736–8312 | 1,884–17987 |
| 2012 | 3,705 | 548 | 3,691 | 2,214–7,086 | 1,506–13,112 |
| 2013 | 5,217 | 532 | 4,317 | 2,650–8,049 | 1,854–16,426 |
| 2014 | 5,537 | 1,447 | 7,961 | 4,975–14,296 | 3,482–29,459 |
| 2015 | 0 | 104 | 2,691 | 1,467–5,398 | 877–11,336 |
| 2016 | – | 62 | 1,831 | 929–3,905 | 496–8,863 |
| 2017 | 502 | 62 | 1,025 | 611–1,925 | 398–4,067 |
| 2018 | 829 | 285 | 1,217 | 803–2,121 | 603–4,350 |
| 2019 | 2,885 | 713 | 2,785 | 1,920-4,810 | 1,421–10,018 |
| Mobula mobular | |||||
| 2011 | 251,547 | 25,222 | 98,059 | 68,577–163,796 | 52,453–319,592 |
| 2012 | 177,099 | 25,541 | 79,794 | 56,550–128,197 | 44,338–254,314 |
| 2013 | 205,820 | 19,717 | 59,238 | 42,477–95,140 | 33,256–180,457 |
| 2014 | 48,319 | 14,235 | 39,520 | 28,640-63,670 | 22,982–123,535 |
| 2015 | 14,227 | 4,134 | 18,076 | 12,249–30,149 | 9,122–55,762 |
| 2016 | – | 1,836 | 14,584 | 9,546–25,119 | 6,677–50,398 |
| 2017 | 12,258 | 2,550 | 11,258 | 7,922–17,804 | 6,249–31,888 |
| 2018 | 11,729 | 4,163 | 11,284 | 8,490–17,638 | 6,970–32,053 |
| 2019 | 15,294 | 4,462 | 12,075 | 8,968–18,863 | 7,464–35,053 |
| Mobula tarapacana | |||||
| 2011 | 32,568 | 3,611 | 13,023 | 8,852–21,861 | 6,743–47,131 |
| 2012 | 30,875 | 4,059 | 13,729 | 9,335–23,313 | 7,179–42,619 |
| 2013 | 32,723 | 3,321 | 13,966 | 9,332–23,491 | 7,327–46,587 |
| 2014 | 18,064 | 3,872 | 12,866 | 8,961–22,434 | 7,098–43,663 |
| 2015 | 9,485 | 1,313 | 8,192 | 5,515–14,626 | 4,069–30,786 |
| 2016 | – | 990 | 7,304 | 4,865-12,802 | 3,491-26,391 |
| 2017 | 4,622 | 1,519 | 5,966 | 4,165–9,923 | 3,130–20,078 |
| 2018 | 3,697 | 1,699 | 5,293 | 3,635–8,823 | 2,883–17,926 |
| 2019 | 4,347 | 1,148 | 4,867 | 3,510–8,405 | 2,740–17,768 |
| Mobula thurstoni | |||||
| 2011 | 2,857 | 981 | 2,915 | 2,434–3,495 | 2,061–4,100 |
| 2012 | 4,940 | 658 | 2,283 | 1,901–2,774 | 1,589–3,343 |
| 2013 | 1,897 | 361 | 1,603 | 1,345–1,930 | 1,117–2,338 |
| 2014 | 671 | 314 | 1,059 | 880–1,243 | 744–1,430 |
| 2015 | 0 | 65 | 825 | 631–1,019 | 456–1,216 |
| 2016 | – | 32 | 665 | 489–848 | 344–1,047 |
| 2017 | 201 | 80 | 533 | 400–672 | 302–795 |
| 2018 | 351 | 175 | 495 | 411–584 | 343–679 |
| 2019 | 593 | 164 | 559 | 459–674 | 388–778 |