Identifying Métiers Using Landings Profiles: An Octopus-Driven Multi-Gear Coastal Fleet
Abstract
:1. Introduction
2. Materials and Methods
2.1. Data Collection
2.2. Data Analysis
3. Results
3.1. Logbooks
3.2. Target Species
3.3. Yearly Trends
3.4. Seasonal Trends
3.5. Factors Influencing Landings
3.6. Métiers
4. Discussion
5. Conclusions and Further Developments
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Clust ID | ASW | SC | No. V | No. T | Wt(t) | AP(€) | Value (105 €) | Spp 1 | Spp%1 | Spp 2 | Spp% 2 | Spp 3 | Spp% 3 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 0.85 | S | 31 | 2233 | 224 | 6.35 | 10.13 | CTC | 66 | RJC | 7 | SOL | 4 |
2 | −0.02 | U | 110 | 17,578 | 2288 | 6.05 | 128.3 | COE | 10 | HKE | 7 | FOR | 7 |
3 | 0.57 | R | 49 | 2477 | 575 | 4.52 | 18.46 | HKE | 74 | MKG | 5 | SCL | 5 |
4 | 0.79 | S | 34 | 2985 | 637 | 5.65 | 34.36 | MON | 75 | RJC | 3 | HKE | 3 |
5 | 0.95 | S | 113 | 27,798 | 4061 | 4.65 | 187.85 | OCC | 98 | COE | 1 | BRB | 0 |
6 | 0.68 | R | 27 | 1938 | 237 | 4.96 | 14.35 | THS | 45 | SBA | 8 | RJC | 7 |
7 | 0.68 | R | 20 | 4506 | 649 | 1.45 | 9.52 | SVE | 89 | ULO | 8 | DON | 3 |
8 | 0 | U | 14 | 1763 | 346 | 1.13 | 3.35 | ULO | 75 | SVE | 22 | DON | 3 |
9 | 1 | S | 18 | 2618 | 205 | 2.33 | 4.93 | DON | 93 | SVE | 4 | ULO | 2 |
Clust ID/Year | ASW | Sil Class | No. V | No. T | Wt(t) | AP(€) | Value (105 €) | Spp 1 | Spp% 1 | Spp 2 | Spp% 2 | Spp 3 | Spp% 3 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2012 | |||||||||||||
2 | 0.51 | R | 28 | 822 | 76 | 4.35 | 3.94 | MKG | 40 | HKE | 25 | MAS | 4 |
4 | 0.73 | S | 30 | 476 | 103 | 4.20 | 2.84 | HKE | 81 | SCL | 4 | MON | 3 |
6 | 0.91 | S | 34 | 228 | 22 | 4.53 | 0.83 | COE | 45 | OCC | 36 | BRB | 7 |
10 | 0.97 | S | 64 | 4709 | 610 | 4.55 | 27.55 | OCC | 98 | COE | 1 | FOR | 0 |
11 | 0.76 | S | 13 | 250 | 20 | 4.56 | 1.23 | THS | 63 | RJC | 6 | HKE | 5 |
12 | 1.00 | S | 16 | 627 | 90 | 1.47 | 1.33 | SVE | 93 | ULO | 5 | DON | 2 |
13 | 1.00 | S | 13 | 482 | 29 | 2.38 | 0.70 | DON | 96 | SVE | 3 | ULO | 1 |
2013 | |||||||||||||
3 | 0.76 | S | 24 | 454 | 107 | 4.17 | 2.86 | HKE | 84 | SCL | 3 | MKG | 3 |
5 | 0.96 | S | 74 | 5370 | 1154 | 3.34 | 37.46 | OCC | 98 | COE | 1 | BRB | 1 |
7 | 0.58 | R | 20 | 571 | 115 | 5.85 | 5.76 | COE | 32 | BRF | 23 | FOR | 17 |
8 | 0.88 | S | 15 | 1015 | 128 | 1.49 | 1.89 | SVE | 86 | ULO | 10 | DON | 5 |
9 | 1.00 | S | 11 | 732 | 62 | 2.22 | 1.46 | DON | 89 | SVE | 6 | ULO | 5 |
2014 | |||||||||||||
2 | 0.79 | S | 15 | 414 | 58 | 6.10 | 2.30 | CTC | 77 | RJC | 6 | OCC | 3 |
4 | 0.91 | S | 17 | 729 | 161 | 5.63 | 8.60 | MON | 74 | RJI | 4 | RJC | 3 |
5 | 0.64 | R | 28 | 547 | 104 | 6.20 | 4.27 | COE | 44 | FOR | 24 | BRF | 14 |
6 | 0.92 | S | 79 | 6146 | 891 | 4.92 | 45.88 | OCC | 98 | COE | 1 | FOR | 0 |
7 | 0.84 | S | 16 | 1372 | 172 | 1.41 | 2.47 | SVE | 90 | ULO | 9 | DON | 1 |
8 | 1.00 | S | 16 | 410 | 34 | 2.37 | 0.83 | DON | 97 | SVE | 2 | ULO | 1 |
2015 | |||||||||||||
3 | 0.66 | R | 13 | 340 | 30 | 6.43 | 1.38 | CTC | 71 | SOL | 6 | RJC | 5 |
4 | 0.75 | S | 18 | 687 | 146 | 5.75 | 8.46 | MON | 74 | JOD | 3 | HKE | 3 |
5 | 0.96 | S | 92 | 6003 | 723 | 5.11 | 39.23 | OCC | 98 | COE | 1 | FOR | 0 |
7 | 0.60 | R | 14 | 695 | 160 | 1.10 | 1.76 | ULO | 55 | SVE | 45 | DON | 0 |
8 | 1.00 | S | 18 | 869 | 158 | 1.45 | 2.34 | SVE | 98 | ULO | 2 | DON | 0 |
9 | 1.00 | S | 16 | 432 | 38 | 2.47 | 0.95 | DON | 99 | ULO | 0 | SVE | 0 |
2016 | |||||||||||||
2 | 0.95 | S | 89 | 5439 | 666 | 5.23 | 37.07 | OCC | 97 | COE | 2 | FOR | 0 |
3 | 0.78 | S | 11 | 851 | 154 | 1.04 | 1.27 | ULO | 92 | SVE | 7 | DON | 1 |
5 | 1 | S | 15 | 499 | 32 | 2.46 | 0.80 | DON | 99 | ULO | 1 | SVE | 0 |
Clust ID/Season | ASW | Sil Class | No. V | No. T | Wt(t) | AP(€) | Value (105 €) | Spp 1 | Spp% 1 | Spp 2 | Spp% 2 | Spp 3 | Spp% 3 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Winter | |||||||||||||
1 | 0.58 | R | 29 | 1133 | 121.69 | 6.17 | 6 | CTC | 61 | RJC | 9 | SOL | 7 |
4 | 0.95 | S | 15 | 186 | 48.80 | 5.04 | 3 | MON | 72 | RJI | 5 | JOD | 2 |
5 | 0.53 | R | 34 | 936 | 134.40 | 5.03 | 8 | THS | 49 | RJC | 9 | HKE | 6 |
6 | 1.00 | S | 88 | 6290 | 1090.88 | 4.66 | 49 | OCC | 98 | COE | 1 | BRB | 0 |
7 | 1.00 | S | 12 | 483 | 93.08 | 1.09 | 1 | ULO | 87 | SVE | 10 | DON | 3 |
8 | 1.00 | S | 16 | 545 | 69.83 | 1.50 | 1 | SVE | 81 | ULO | 12 | DON | 6 |
9 | 1.00 | S | 18 | 979 | 78.42 | 2.31 | 2 | DON | 92 | SVE | 5 | ULO | 3 |
Spring | |||||||||||||
1 | 0.56 | R | 24 | 1016 | 103.83 | 6.42 | 4.39 | CTC | 68 | RJC | 8 | OCC | 4 |
3 | 0.69 | R | 25 | 1122 | 277.09 | 5.71 | 13.30 | MON | 81 | RJC | 3 | RJI | 3 |
6 | 0.75 | S | 30 | 464 | 93.47 | 4.67 | 2.90 | HKE | 68 | SCL | 9 | MON | 5 |
10 | 1.00 | S | 6 | 47 | 1.94 | 45.94 | 0.93 | NEP | 100 | ||||
11 | 0.78 | S | 7 | 164 | 4.20 | 9.26 | 0.46 | BOY | 69 | CTC | 7 | TOE | 7 |
14 | 0.98 | S | 99 | 7580 | 1148.61 | 4.87 | 54.65 | OCC | 98 | COE | 1 | BRB | 0 |
17 | 0.85 | S | 10 | 187 | 34.91 | 1.15 | 0.31 | ULO | 87 | SVE | 11 | DON | 2 |
18 | 1.00 | S | 16 | 568 | 67.88 | 1.47 | 1.01 | SVE | 97 | ULO | 3 | DON | 1 |
19 | 0.79 | S | 17 | 599 | 39.29 | 2.38 | 0.97 | DON | 97 | SVE | 2 | ULO | 1 |
Summer | |||||||||||||
2 | 0.67 | R | 29 | 1091 | 180.98 | 6.17 | 11.12 | MON | 64 | HKE | 6 | RJC | 4 |
3 | 0.99 | S | 99 | 7660 | 1020.07 | 4.61 | 47.93 | OCC | 97 | COE | 2 | BRB | 0 |
4 | 0.63 | R | 29 | 898 | 273.38 | 4.36 | 7.74 | HKE | 83 | MON | 4 | SCL | 4 |
6 | 1.00 | S | 20 | 1992 | 292.67 | 1.51 | 4.41 | SVE | 97 | DON | 2 | ULO | 2 |
7 | 0.75 | S | 18 | 368 | 32.34 | 2.32 | 0.78 | DON | 93 | SVE | 4 | ULO | 2 |
Fall | |||||||||||||
4 | 0.84 | S | 38 | 436 | 117.42 | 4.17 | 3.59 | HKE | 72 | MON | 4 | SCL | 4 |
5 | 0.57 | R | 22 | 683 | 64.01 | 4.46 | 3.92 | MKG | 45 | HKE | 24 | SBA | 4 |
9 | 0.98 | S | 99 | 6240 | 794.96 | 4.45 | 36.19 | OCC | 98 | COE | 1 | FOR | 0 |
10 | 0.66 | R | 11 | 346 | 70.19 | 1.20 | 0.82 | ULO | 50 | SVE | 45 | DON | 4 |
11 | 1.00 | S | 18 | 911 | 111.29 | 1.47 | 1.65 | SVE | 93 | ULO | 5 | DON | 2 |
12 | 0.91 | S | 12 | 334 | 55.64 | 0.98 | 0.45 | ULO | 94 | SVE | 5 | DON | 1 |
13 | 1.00 | S | 18 | 648 | 51.27 | 2.38 | 1.25 | DON | 95 | SVE | 4 | ULO | 1 |
Métiers | Fall | Winter | Spring | Summer |
---|---|---|---|---|
Monkfish gillnet (MONGNS) | ||||
Hake gillnet (HKEGNS) | ||||
Octopus traps (OCCFPO) | ||||
Striped venus dredge (SVEDRB) | ||||
Donax clam dredge (DONDRB) | ||||
Surf clam dredge (ULODRB) | ||||
Cuttlefish trammel net (CTCGTR) | ||||
Norway lobster traps (NEPFPO) | ||||
Purple-dye murex trammel net (BOYGTR) | ||||
Bastard sole gillnet (THSGNS) | ||||
Thickback sole gillnet (MKGGNS) |
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Szynaka, M.J.; Erzini, K.; Gonçalves, J.M.S.; Campos, A. Identifying Métiers Using Landings Profiles: An Octopus-Driven Multi-Gear Coastal Fleet. J. Mar. Sci. Eng. 2021, 9, 1022. https://doi.org/10.3390/jmse9091022
Szynaka MJ, Erzini K, Gonçalves JMS, Campos A. Identifying Métiers Using Landings Profiles: An Octopus-Driven Multi-Gear Coastal Fleet. Journal of Marine Science and Engineering. 2021; 9(9):1022. https://doi.org/10.3390/jmse9091022
Chicago/Turabian StyleSzynaka, Monika J., Karim Erzini, Jorge M. S. Gonçalves, and Aida Campos. 2021. "Identifying Métiers Using Landings Profiles: An Octopus-Driven Multi-Gear Coastal Fleet" Journal of Marine Science and Engineering 9, no. 9: 1022. https://doi.org/10.3390/jmse9091022