by
Manuel Lima Dias
INIP, Lisbon, Portugal
INTRODUCTION
The Portuguese interest in fisheries in Northern African waters is well known, not only considering the traditional and old trawl fishery since the fifties (period in which more than forty trawlers were in operation), but also recently when the importance of trawl fishery is decreasing and line and gill-net fisheries are becoming more and more significative.
In the beginning the target of trawlers was hakes (Merluccius merluccius and mainly Merluccius senegalensis), but during the past years seabreams gained importance mainly due to the decline of the hake trawl fishery and to the fact that quite a large number of species was demanded by different fishing boats off this coast where different reasons somewhat conditioned some fishing operations.
The responsible sector of the Portuguese Overseas Fisheries never slackened to co-operate with the study of these fisheries and has been in close contact with the CECAF Project in what concerns the fisheries of the FAO Divisions 34.1.1, 34.1.3 and 34.3.1.
It must again be stressed, as is well known by all, that one of the most dramatic difficulties faced concerns fishery statistics, landings by gears, species discriminations and fishing effort. This problem is, in this country, much worst due to different patterns used along several periods of time which with in turn reflected in responsibility for the fishery statistics, seeing that in about twelve years three changes took place with all inconveniences and lacunas in information (irregularity in the schedule adopted, different species considered, etc …). Such a situation necessarily affects the knowledge of marine resource exploitations.
On the other hand, since some time ago problems have been faced by our sampling programme because of landing irregularities, ignorance or incertitude in what concerns gears used by fishermen and, also, in data on fishing effort.
In spite of all these problems this paper principally aims at updating the statistical information available for the last years, referring only to the main species caught. A summary of the biological studies carried out on hakes and rubberlip grunt for 1983 and 1984, a first contribution to the seabream Working Group with all available statistics since 1949 and some biological observations on some species of seabreams are also presented.
1. HAKE FISHERY (Merluccius spp)
As pointed out in previous papers, this fishery presented quite a striking decline in the last years mainly due to weaker fishery conducted by trawlers and also to several changes in Portuguese patterns in fisheries carried out in CECAF waters owing to national and international affairs. In fact, it can be seen (Table 1) that in the sixties landings were annually above 2 thousand tons (in the worst years) and over 11 thousand tons in the better year (the average weight of landings in this period was about 8 thousand tons). During the following decade this average was only 4 thousand tons and in the last five years (1980–1984) this corresponding value was only 503 tons. Attending to the lack of statistical information from landings by gear this fishery should otherwise be quite different.
Still considering these last five years, hake landings represented only 3% of the whole fishery against 20% for the decades of the sixties and seventies.
Tables 1 and 2 present hake landings for the period of 1949–1984, the former also takes into account the landings of the whole seabreams and rubberlip grunt fisheries, as well as the total fished : the latter presents the values of landings of different seabreams (species are not always the same due to the above referred reasons), rubberlip grunt, total of fishes, molluscs and crustaceans. At the bottom of Table 2 the whole available statistical information is also referred.
Considering a more recent period (1979–1984), Table 5 and Figure 6 present (the former in values of tons and the latter in %o) the landing proportions of hakes, groupers, grunts, rubberlip grunt, meagres, seabreams, horse mackerel, tunna fishes, black scabbard fish and chub mackerel. This is to allow a comparison of the values of several fisheries (considering the main species exploited) in CECAF waters by Portuguese fleets during this period (all CECAF divisions have been considered).
Regarding studies carried in 1983 and 1984 on hakes, in spite of difficulties exposed above, it was possible to carry out some studies on length composition of landings with only the sampling program, as it had not been possible to obtain available data from the different kinds of fisheries (trawl, line and gill net).
For 1983, Tables 5 and 6 and Figures 8 and 9 present respectively the results of these studies : the first Table shows length composition of part of the landings from trawlers, line and gill-net vessels in terms of the number of fish measured and respective %o, by two centimeter classes.
Figure 8 clearly shows the different compositions of landings, presenting a mean length of 41.2 cm for trawlers and 62.2 and 52.4 cm for line and gill-net vessels respectively.
From the whole sampling it can be seen that the more important classes comprised between the 41–43 and 52–53 cm. Classes with a mean length of 53.9 cm.
Considering 1984, it was only possible to carry out observations on trawl and line landings (Table 6 and Figure 9). In this period the mean lengths were 48.4 and 56.3 cm, for trawl and line fisheries respectively. For both fisheries studied, the mean length of fish sampled was 55.6 cm with a predominance of the classes from the 48–49 and 52–53 cm classes.
The below Table shows the mean length and the mean weight of landings studied in each year.
| Trawl | Line | Gill nets | Line + Gill nets | Total | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | 1984 | 1983 | 1984 | 1983 | 1984 | 1983 | 1984 | 1983 | 1984 | |
Mean lenght  (cm) | 41.2 | 48.4 | 62.2 | 56.3 | 52.4 | - | 54.7 | - | 53.9 | 55.6 |
Mean weight  (Kg) | 0.5 | 0.7 | 1.7 | 1.3 | 1.0 | - | 1.3 | - | 1.2 | 1.2 |
1983 - Merluccius spp (mainly M.merluccius)
1984 - Merluccius merluccius
Once again, attention is drawn to impossibility in the obtention of more relevant information in what concerns length composition and total landings by gears due to the lack of statistical information.
2. RUBBERLIP GRUNT (Plectorhinchus mediterraneus)
This is quite an important species in the landings of all kinds of fisheries conducted by different fishing vessels in the CECAF region during the last years, mainly in FAO divisions 34.1.1, 34.1.3 and 34.3.1. Here again, for different years it had been very difficult to obtain the correct value of landing statistics by gears and only for 1984 it was possible to obtain this information.
Tables 7 and 8 as well as Figures 10 and 11, respectively show the length composition of landings, considering only sampling for 1983. For 1984 the figures regard total landings for the entire trawl and gill-net landings and, for line fishery, only sampling was considered.
It can be observed that in what concerns trawl fishery the mean length of fish observed in 1984 was higher than that corresponding to the previous year (36.8 against 38.9 cm). For line fishery, sampling along 1984 was insufficient and, due to this, nothing can be informed of this fishery. Regarding 1983, the strongest length classes observed were from 40–41 to 46–47 cm, with a mean length for the total sampling of 43.5 cm.
The gill-net fishery of rubberlip grunt along both years in consideration is more or less similar in what concerns the length composition of landings. In fact the strongest classes during 1983 comprised between 40–41 and 46–47 cm, and for 1984, the classes most represented were from 38–39 to 44–45 cm ; the mean length for 1983 and 1984 were respectively 44.3 and 41.3 cm.
The values of different mean length and mean weight of this species studied for both years are as follows :
| Trawl | Line | Gill nets | Line + Gill nets | Total | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1983 | 1984 | 1983 | 1984 | 1983 | 1984 | 1983 | 1984 | 1983 | 1984 | |
| Mean length (cm) | 38.9 | 36.8 | 43.5 | 43.2 | 44.3 | 41.3 | 43.9 | 37.2 | 41.4 | 40.2 |
| 1Mean weight (Kg) | 0.7 | 0.6 | 11.3 | 1.3 | 0.9 | 0.9 | 1.1 | 1.1 | 0.9 | 0.9 |
In what concerns the relative importance of rubberlip grunt landings in the whole Portuguese fishery in this region, and as already stated, it is quite important. Unfortunately, in early years, landings statistics present this species mixed with seabreams. Taking into account sampling carried on different ships (for 1984 different gears were also considered) it was possible to estimate the proportion of total rubberlip grunt landings from CECAF waters.
Tables 1, 2 and 3 and Figure 2 show these data regarding the period of 1949–1984.
A short and single analysis of the relative importance of this fishery regarding three periods (1949–1959, 1969–1979 and 1970–1984) give the following percentage of this species in relation to the total fishery:
1949–1959 - 48% 1969–1979 - 35% 1970–1984 - 41%
The significative importance of this fishery is quite evident in spite of the fluctuation of fishing operations not only by gears but also regarding the changes of exploitation patterns along this long period.
Taking into consideration the period of 1979–1984 (Table 3 and Figure 6) the significance of rubberlip grunt landings, regarding the whole Portuguese fishery off the East Central Atlantic coast, and the species or sets of species with relevant interest can also be clearly observed.
3. SEABREAMS (Sparidae)
The study of seabreams landed by different types of fishing boats in the area of the Committee is quite recent in this country. Otherwise, it is well known that the statistical discrimination of landings concerning different species of Sparidae is frequently quite difficult (as, for example, of pargo breams).
The main species of Sparidae caught by Portuguese fishing boats, in CECAF region, are as follows :
| Common names | Scientific names | |
|---|---|---|
| Portuguese | English | |
| Goraz | Red (= common) seabream | Pagellus bogaraveo |
| Bica | Common Pandora | Pagellus erythrinus |
| Besugo | Axillary (= Spanish) seabream | Pagellus acarne |
| Bica-Buçu | West african seabream | Pagellus coupei |
| Cachucho | Largrey dentex | Dentex macrophthalmus |
| Capatao legitimo | Common dentex | Dentex dentex |
| Dentao de Angola | Angola dentex | Dentex angolensis |
| Dentap Congoles | Congo dentex | Dentex congoensis |
| Capatoes e dentoes | Dentex n.e.i. | Dentex spp. |
| Choupa | Black bream | Spondyliosoma cantharus |
| Salema | Goldline | Sarpa salpa |
| Pargo legitimo | Red porgy (= common) seabream | Sparus pagrus |
| Pargo semola | Redbanded seabream | Sparus auriga |
| Pargos | Pargo bream nei | Sparus spp. |
| Sargos | While seabreams nei | Diplodus spp. |
In spite of the lack of information and other difficulties already mentioned, regarding the absence of regular and comparable statistics, it was possible to obtain a historical series of seabream landing statistics from 1949 to 1984 (Tables 1 and 2, Figures 1, 2, 3, 4 and 5).
As is evident in these Tables, the list of species mentioned is quite different in some periods, mainly due to alterations in the pattern of collecting statistics and, also, in great difficulties in gathering basic data itself.
In what concerns the Portuguese seabream fishery, since 1949 the total landings as well as the values of the total fishery for four different periods (A, 1949–1959 ; A', 1949–1963 ; B, 1969–1979 ; B', 1970–1984) can be thus observed :
| TOTAL FISHERY | SEABREAM LANDINES | ||
|---|---|---|---|
| (TONS) | TONS | % | |
| A - 1949–59 | 394 | 118 | 30 |
| A'- 1949–63 | 577 | 154 | 27 |
| B - 1969–79 | 242 | 43 | 18 |
| B'- 1970–84 | 291 | 54 | 19 |
For the whole period, Tables 1 and 2 and Figure 1 show landing fluctuations. The Tables also present other data (on hakes and rubberlip grunt - Table 1 and on a larger number of species - Table 2). Figure 2 also represents values of seabream, hake and rubberlip grund landings in terms of permillage. Calculations took into account the total value of the whole fishery for each year. In this Figure 2, opposite tendencies for some period of time regarding, for instance, hakes ≠ seabreams and seabreams ≠ rubberlip grunt can be observed.
Regarding seabream fishery, data on Tables 1 and 2 and Figure 3 allow observation, for these 36 years, or regular landings of dentex and pargo breams. It can be observed here that, for these two sets of species, pargo bream landings show a remarkable decrease mainly since the sixties till 1971 appearing, after that, with an apparent recovery. Considering dentex fishery, a decline of the landings is also a reality with no sign of an important increase.
Going back to the four periods mentioned (1949–1959, 1959–1963, 1969–1973 and 1970–1984), the relative importance of seabream fishery can be observed in Figures 4 and 5. Figure 4 takes into account the different values of landings (%o), for each lapse of time, of seabreams, hakes, rubberlip grunt and other fishes. Figure 5 presents the “weight” of seabreams, hakes and rubberlip grunt as other non specified species only for 1949–1963, 1964–1969 and 1970–1984, i.e. two long periods of time (an old one and a recent one) with a short lapse of time between these two phases.
This presentation shows that the largest proportion of seabreams of the whole fishery is related to the 1949–1963 period.
For the period between 1979–1984, Figure 6 presents the most important species or groups of species and corresponding annual landing proportions of all CECAF divisions where Portuguese fishing boats operate as well as all gears used.
It is important to stress that in what concerns horse mackerel, tuna spp., chub mackerel and black scabbard fish, the respective landings mainly refer to Madeira waters (division 34.1.2).
In an attempt to find out the different importance of trawl, line and gill-net fisheries in the exploitation of seabreams and, only for 1984, the landings of about 90% of all fishing boats operating in the Committee area (mainly divisions 34.1.1, 34.1.3 and 34.3.1) were studied. From this sampling it became possible, taking into account some species of seabreams or sets of species, to draw Figure 7, where different landings of each species or sets of species, according to the gear used in the respective catch can be seen (Table 4).
It is significative to observe that in what concerns trawl, the highest values of landings were of axillary seabreams (Pagellus acarne), seabreams n.e.i. (Sparus spp.) and dentex (Dentex spp.) ; for line fishery the best “species” represented were axillary seabreams and seabreams n.e.i. for gill nets these two “species” were already quite important, but breams (Diplodus spp.) and pandoras n.e.i. (Pagellus spp.) are also appearing with some interest.
In what concerns the biological sampling, first of all, it must be emphasized that difficulties were encountered with the sampling itself due essentially to the lack of information of fishing operations, to the lack of knowledge of the fishing area (Portuguese waters in CECAF divisions) and, at times, to problems which arose with the mixture of species during landings, etc.
Along 1983 and 1984 some length compositions of redbanded seabreams (Sparus auriga), axillary seabream (Pagellus acarne), dentex (mainly Dentex macrophthalmus) and common seabream or balckspot seabream (Pagellus bogaraveo) were observed. Tables 9 and 10 and Figures 12 and 13 represent length compositions of redbanded seabream caught by line, gill nets and trawl in 1983 and only by line and gill nets in 1984.
The below Table presents the mean length and mean length for redbanded seabream caught by different gears :
| 1983 | 1984 | ||||
|---|---|---|---|---|---|
| Line | Gill nets | Trawl | Line | Gill nets | |
| Mean length (cm) | 47.3 | 44.5 | 40.7 | 35.3 | 44.0 |
| Mean weight (Kg) | 2.0 | 1.4 | 1.2 | 0.9 | 1.5 |
Considering the total sampling of rubberlip seabream for 1983 and 1984, for mean lengths of 43.7 and 39.0 cm, the mean weights were for 1983 1.4 kg, and for 1984, 1.2 kg.
Regarding axillary seabream and dentex fisheries the respective samplings were very poor and only for 1983.
Table 11 and Figure 14 show the length composition for axillary seabream and Table 12 and Figure 15 the same information but on dentex, mainly Dentex macrophthalmus.
It is important to point out that regarding dentex the sampling from gill net fishery showed a higher number of fish with a mean length of 26.4 cm and a mean weight of 2.4 kg while the line fishery presented fish with smaller length and for this reason, with a lower mean weight (only 0.3 kg.).
Considering the last species of sparidae studied, red (= common) seabream, samples were obtained during 1983 and 1984 from line landings but with significance only for the last year. Tables 13 and 15 as well as Figures 16 and 17 present the length distribution of this species. For 1983 (Table 13, Figure 10) the length distribution of the sampling can be observed, but in another Table and Figure (14 and 17 respectively), and, for this gear, the total landings were presented. For 1983 the mean length and mean weight of the sampling were respectively 32.3 cm, and 0.5 kg. For the total landings during 1984 the corresponding values were 35.4 cm and 0.6 kg.
Relative to the information on fishing effort for this fishery and for CPUE taking in mind the catch by 1 000 hooks, it can be mentioned that the yield for such a gear is about 47 kg or 79 fish caught. Considering yield by hauls it was 9 kg and 15 fish.
As a last information on Portuguese seabream fishery and in what concerns the relationship between total landings and total effort, in Figure 18 values corresponding to the average of a 5 year period are reported. Alike relationship is established for the whole fishery and the curve related to the observed points is traced (by hand). Theoretical values are also represented for both seabream and total fisheries.
Figure 19 presents the relationship between total effort (fishing hours) and CPUE (kg/h).
The estimation of the CPUE value for the different species of seabreams for 1984, taking into account that the total effort related to about 90% of the vessels involved in this fisheries during 1984 (line and gill net fisheries) is also known.
The below Table presents the results achieved, referent to kg/hours of fish evaluated, considering scattered line and gill net fishing efforts. It is important to emphasize that these seabreams represent only a part of all that is caught by these two kinds of gears.
| Line fishery | Gill nets fishery | |
|---|---|---|
| Kg/h | Kg/h | |
| Axillary seabream | 1.3 | 0.7 |
| Pargo breams | 0.5 | 1.9 |
| Red breams | 0.1 | 0.2 |
| Dentex n.e.i. | 0.2 | 0.5 |
REFERENCES
Cushing, D.H., 1986 The abundance of hake off South Africa. Fisheries.Inv.Lord. (2)
Dias, M.L., 1984 The Portuguese fishery in the CECAF area in 1980–1983. CECAF-Rapp. du Premier Groupe de travail spécial sur les pêcheries de merlus et de crevettes profondes dans la zone Nord du COPACE
FAO, Rapport du Groupe de travail ACCRM/CIEM sur les ressources halieutiques de l'Atlantique Centre-Est et Sud-Est. FAO-Rapports sur les Pêches No. 56, Suppl.1
FAO, 1979 Les ressources halieutiques de l'Atlantique Centre-Est, lère partie : Les ressources du Golfe de Guinée de l'Angola à la Mauritanie. FAO Document technique sur les pêches No. 186.1
Thiam, M., 1985 Consultation sur la disponibilité de données sur les sparidés de la zone Nord du COPACE. Appendix 7 to the present report.
Table 1 - Portuguese Fishery in CECAF Waters - 1949–1984. All divisions and gears. Landings of seabreams (Sparidae), hakes and rubberlip grunt - Tons and ‰.
| Years | Total Fishery | Hakes | Seabreams | Rubberlip grunt | Others | ||||
|---|---|---|---|---|---|---|---|---|---|
| Tons | Tons | ‰ | Tons | ‰ | Tons | ‰ | Tons | ‰ | |
| 1949 | 31524 | 8804 | 279.3 | 10514 | 333.5 | 3590 | 113.9 | 8616 | 273.3 |
| 50 | 31065 | 5933 | 191.0 | 11827 | 380.7 | 5059 | 162.9 | 8246 | 265.4 |
| 51 | 29665 | 7539 | 254.1 | 11192 | 377.3 | 4178 | 140.8 | 6756 | 227.7 |
| 52 | 32683 | 10697 | 327.3 | 10867 | 332.5 | 4654 | 142.4 | 6465 | 197.8 |
| 53 | 32857 | 11429 | 347.8 | 9622 | 292.8 | 3817 | 116.2 | 7989 | 243.1 |
| 54 | 34558 | 10104 | 292.4 | 9841 | 284.8 | 4088 | 118.3 | 10525 | 304.6 |
| 55 | 34200 | 10400 | 304.1 | 9172 | 268.2 | 4392 | 128.4 | 10236 | 299.3 |
| 56 | 37146 | 8055 | 216.8 | 11359 | 305.8 | 5144 | 138.5 | 12588 | 338.9 |
| 57 | 39979 | 8601 | 215.1 | 10875 | 272.0 | 5151 | 128.8 | 15352 | 384.0 |
| 58 | 40404 | 10242 | 253.0 | 10470 | 259.1 | 5059 | 125.2 | 14633 | 362.2 |
| 59 | 49550 | 7985 | 161.2 | 12251 | 247.2 | 7350 | 148.3 | 21964 | 443.3 |
| 1960 | 49591 | 8243 | 166.2 | 11059 | 223.0 | 6062 | 122.2 | 24227 | 488.5 |
| 61 | 49390 | 6591 | 133.4 | 10464 | 212.1 | 4279 | 86.6 | 28056 | 568.1 |
| 62 | 42500 | 4762 | 112.0 | 7978 | 187.7 | 3561 | 83.8 | 26199 | 616.4 |
| 63 | 42163 | 2718 | 64.5 | 6669 | 158.2 | 3300 | 78.3 | 29476 | 699.1 |
| 64 | 41320 | 4732 | 114.5 | 5502 | 133.2 | 2994 | 72.5 | 28092 | 679.9 |
| 65 | 40096 | 9585 | 239.1 | 5459 | 136.1 | 1969 | 49.1 | 23083 | 575.7 |
| 66 | 36712 | 10464 | 285.0 | 4613 | 125.7 | 1057 | 28.8 | 20578 | 560.5 |
| 67 | 33977 | 10283 | 302.6 | 4244 | 124.9 | 1421 | 41.8 | 18029 | 530.6 |
| 68 | 33045 | 11107 | 336.1 | 3373 | 102.1 | 1281 | 38.8 | 17284 | 523.0 |
| 69 | 31103 | 9928 | 319.2 | 3837 | 123.4 | 1095 | 35.2 | 16243 | 522.2 |
| 1970 | 25765 | 6717 | 260.7 | 3405 | 132.2 | 986 | 38.3 | 14657 | 568.9 |
| 71 | 22550 | 5075 | 225.1 | 3034 | 134.5 | 1470 | 65.2 | 12971 | 575.2 |
| 72 | 24931 | 5496 | 220.4 | 3239 | 130.0 | 1830 | 73.4 | 14366 | 576.2 |
| 73 | 28277 | 7575 | 267.9 | 3931 | 139.0 | 2020 | 71.4 | 14751 | 521.7 |
| 74 | 23042 | 7295 | 316.6 | 5820 | 252.6 | 2935 | 127.4 | 6992 | 303.4 |
| 75 | 20977 | 3982 | 189.8 | 4291 | 204.6 | 3018 | 143.8 | 9686 | 461.7 |
| 76 | 29083 | 4701 | 161.6 | 4244 | 145.9 | 2833 | 97.4 | 17305 | 595.0 |
| 77 | 12770 | 856 | 67.0 | 3670 | 287.4 | 2637 | 206.5 | 5607 | 439.1 |
| 78 | 8524 | 364 | 42.7 | 3066 | 359.7 | 1501 | 176.1 | 3593 | 421.5 |
| 79 | 14784 | 523 | 35.4 | 4190 | 283.4 | 3471 | 234.8 | 6600 | 446.4 |
| 1980 | 15664 | 1767 | 112.8 | 3380 | 215.8 | 1738 | 111.0 | 8779 | 565.5 |
| 81 | 12808 | 135 | 10.5 | 3473 | 271.2 | 1867 | 145.8 | 7333 | 572.5 |
| 82 | 12494 | 198 | 15.8 | 2232 | 173.6 | 1810 | 144.9 | 8254 | 660.6 |
| 83 | 18258 | 176 | 9.6 | 3347 | 183.3 | 2051 | 112.3 | 12684 | 694.7 |
| 84 | 21118 | 240 | 11.4 | 3456 | 163.7 | 2927 | 138.6 | 14495 | 686.4 |
Table 2 - Portuguese fishery in CECAP WATERS - 1949–1957
| Years | 1949 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | Period 1949–1957 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Portuguese | English | Scientific names | ||||||||||
| Pescada òranca | White hake | M. merluccius | ||||||||||
| Pescada negra | Black hake | M. senegalensis | ||||||||||
| Pescadas | Hakes | Merluccius spp. | 8804 | 5933 | 7537 | 10697 | 11429 | 10104 | 10400 | 8055 | 8601 | 81560 |
| Goraz | Common seabream | Pagellus bogaraveo | 55 | 130 | 90 | 63 | 23 | 26 | 5 | 37 | 16 | 445 |
| Besugo | Axillary seabream | Pagellus acarne | 358 | 289 | 497 | 150 | 64 | 140 | 92 | 134 | 98 | 1822 |
| Bicas | Pandoras nei | Pagellus spp. | ||||||||||
| Cachuchos | Dentex nei | Dentex spp. | 6512 | 6349 | 6427 | 6000 | 5718 | 5587 | 4683 | 6044 | 5610 | 52930 |
| Choupa | Black bream | Spondyliosoma oantharus | ||||||||||
| Sargos | White seabreams nei | Diplodus spp. | ||||||||||
| Pargos | “Pargo”Breams | Sparus spp. | 3589 | 5059 | 4178 | 4654 | 3817 | 4088 | 4392 | 5144 | 5151 | 40072 |
| Outros ESparídeos | Other seabreams nei | Sparidae | ||||||||||
| Total ESparídeos | Total seabreams | Total sparidae | 10514 | 11827 | 11192 | 10867 | 9622 | 9841 | 9172 | 11359 | 10875 | 95269 |
| Pembo | Rubberlip grunt | Plectorhinchus mediterraheus | 3590 | 5059 | 4178 | 4654 | 3817 | 4088 | 4392 | 5144 | 5151 | 40073 |
| Outros peixes | Other fishes | 8508 | 8075 | 6600 | 6322 | 7920 | 9710 | 9371 | 11586 | 14100 | 82192 | |
| Total peixes | Total fishes | 31416 | 30894 | 29507 | 32540 | 32788 | 33743 | 33335 | 36144 | 38727 | 299094 | |
| Moluscos | Molluscs | Mollusca | 107 | 170 | 156 | 132 | 66 | 809 | 860 | 926 | 1107 | 4333 |
| Crustáceos | Crustaceans | Crustacea | 1 | 1 | 2 | 11 | 3 | 6 | 5 | 76 | 145 | 250 |
| TOTAL | TOTAL | 31524 | 31065 | 29665 | 32683 | 32857 | 34558 | 34200 | 37146 | 39979 | 303677 | |
| № lanços | № of hauls | 21089 | 22944 | 21423 | 22717 | 22431 | 23348 | 23065 | 25467 | 28010 | 210494 | |
| Dias de pesca | Days fished (x) | 4109 | 4494 | 4326 | 4454 | 4381 | 4576 | 4520 | 4649 | 5395 | ||
| № horas de pesca | Hours fished | 73956 | 80899 | 77863 | 80178 | 78860 | 82366 | 81353 | 83686 | 97115 | 736276 | |
Table 2 - Portuguese fishery in CECAP WATERS - 1958–1966
| Years | 1958 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | Period 1958–1966 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Portuguese | English | Scientific names | ||||||||||
| Pescada òranca | White hake | M. merluccius | ||||||||||
| Pescada negra | Black hake | M. senegalennis | ||||||||||
| Pescadas | Hakes | Merluccius spp. | 10242 | 7985 | 8243 | 6591 | 4762 | 2718 | 4732 | 9585 | 10464 | 65322 |
| Goraz | Common seabream | Pagellus bogaraveo | 38 | 8 | 24 | 62 | 82 | 8 | 66 | 1 | 4 | 293 |
| Besugo | Axillary seabream | Pagellus acarne | 65 | 71 | 154 | 139 | 168 | 94 | 38 | 52 | 49 | 830 |
| Bicas | Pandoras nei | Pagellus spp. | ||||||||||
| Cachuchos | Dentex nei | Dentex spp. | 5308 | 4822 | 4819 | 5984 | 4167 | 3267 | 2404 | 3437 | 3503 | 37711 |
| Choupa | Black bream | Spondyliosoma cantharus | ||||||||||
| Cargos | White seabreams nei | Diplodus spp. | ||||||||||
| Pargos | “Pargo”Breams | Sparus spp. | ||||||||||
| Outres Eaparideos | Other seabreams nei | Sparidae | 5059 | 7350 | 6062 | 4279 | 3561 | 3300 | 2994 | 1969 | 1057 | 35631 |
| Total Eaparideos | Total seabreams | Total sparidae | 10470 | 12251 | 11059 | 10464 | 7978 | 6669 | 5502 | 5459 | 4613 | 74465 |
| Pembo | Rubberlip grunt | Plectorhinchus medirraheusdite | 5059 | 7350 | 6062 | 4279 | 3561 | 3300 | 2994 | 1969 | 1057 | 35631 |
| Outros peixes | Other fishes | 13616 | 20406 | 20942 | 24624 | 23704 | 26908 | 26420 | 20840 | 19117 | 196577 | |
| Total peixes | Total fishes | 39387 | 47992 | 46306 | 45958 | 40005 | 39595 | 39648 | 37853 | 35251 | 371995 | |
| Moluscos | Molluscs | Mollusca | 963 | 1493 | 3252 | 3410 | 2487 | 2563 | 1665 | 2239 | 1459 | 19531 |
| Crustáceos | Crustaceans | Cruatacea | 54 | 65 | 33 | 22 | 8 | 5 | 7 | 4 | 2 | 200 |
| TOTAL | TOTAL | 40404 | 49550 | 49591 | 49390 | 42500 | 42163 | 41320 | 40096 | 36712 | 391726 | |
| № lanços | № of hauls | 29685 | 37217 | 37879 | 39960 | 40920 | 44233 | 44470 | 40853 | 38811 | 354028 | |
| Dias de pesca | Days fished | 5479 | 6590 | 6865 | 6968 | 6735 | 7205 | 7374 | 7593 | 7589 | ||
| № horas de pesca | Hours fished | 98616 | 118623 | 123565 | 125430 | 121238 | 129689 | 132738 | 136676 | 136595 | 1123170 | |
Table 2- Portuguese fishery in CECAP WATERS - 1967–1975
| Years | 1967 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | Period 1967–75 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Portuguese | English | Scientific names | ||||||||||
| Pescada òranca | White hake | M. merluccius | ||||||||||
| Pescada negra | Black hake | M. senegalensis | ||||||||||
| Pescadas | Hakes | Merluccius spp. | 10283 | 11107 | 9928 | 6717 | 5075 | 5496 | 7575 | 7295 | 3982 | 67458 |
| Goraz | Common seabream | Pagellus bogaraveo | 15 | 5 | 10 | 30 | ||||||
| Besugo | Axillary seabream | Pagellus acarne | 35 | 45 | 73 | 153 | ||||||
| Bicas | Pandoras nei | Pagellus spp. | 90 | 90 | ||||||||
| Cachuchos | Dentex nei | Dentex spp. | 2773 | 2042 | 2659 | 2418 | 1564 | 1389 | 1911 | 2306 | 1273 | 18335 |
| Choupa | Black bream | Spondyliosoma cantharus | 727 | 727 | ||||||||
| Sargos | White seabreams nei | Diplodus spp. | 197 | 197 | ||||||||
| Pargos | “Pargo”Breams | Sparus spp. | ||||||||||
| Outros Eaparideos | Other seabreams nei | Sparidae | 1421 | 1281 | 1095 | 987 | 1470 | 1840 | 2020 | 2500 | 3018 | 15632 |
| Total Eaparideos | Total seabreams | Total sparidae | 4244 | 3373 | 3837 | 3405 | 3034 | 3229 | 3931 | 5820 | 4291 | 35164 |
| Pembo | Rubberlip grunt | Plectorhinchus mediterraheus | 1421 | 1281 | 1095 | 986 | 1470 | 1839 | 2020 | 2935 | 3018 | 16065 |
| Outros peixes | Other fishes | 16056 | 15684 | 14995 | 13507 | 11627 | 13349 | 14220 | 6698 | 9386 | 115522 | |
| Total peixes | Total fishes | 32004 | 31445 | 29855 | 24615 | 21206 | 23913 | 27746 | 22748 | 20677 | 234209 | |
| Moluscos | Molluscs | Mollusca | 1969 | 1596 | 1239 | 1106 | 1335 | 999 | 526 | 267 | 300 | 9337 |
| Crustáceos | Crustaceans | Crustacea | 4 | 4 | 9 | 44 | 9 | 19 | 5 | 27 | 121 | |
| TOTAL | TOTAL | 33977 | 33045 | 31103 | 25765 | 22550 | 24931 | 28277 | 23042 | 20977 | 243667 | |
| № lanços | № of hauls | 35674 | 34711 | 33973 | 24110 | 21101 | 23329 | 13803 | 21562 | 19631 | ||
| Dias de pesca | Days fished | 6256 | 6584 | 6794 | 4315 | 3776 | 4175 | 2470 | 3859 | 4486 | ||
| № horas de pesca | Hours fished | 112608 | 118516 | 122292 | 77665 | 67974 | 75151 | 44465 | 69457 | 78200 | ||
Table 2 - Portuguese fishery in CECAP WATERS - 1976–1984
| Years | 1976 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | Period 1976–1984 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Portuguese | English | Scientific names | ||||||||||
| Pescada òranca | White hake | M. merluccius | 844 | 71 | 99 | 168 | 209 | |||||
| Pescada negra | Black hake | M. senegalensis | 923 | 64 | 99 | 8 | 31 | |||||
| Pescadas | Hakes | Merlucoius spp. | 4701 | 856 | 364 | 523 | 1767 | 135 | 198 | 176 | 240 | 8960 |
| Goraz | Common seabream | Pagellus bogaraveo | 10 | 59 | 58 | 127 | ||||||
| Besugo | Axillary seabream | Pagellus acarne | 159 | 1262 | 1279 | 2700 | ||||||
| Bicas | Pandoras nei | Pagellus spp. | 23 | 29 | 172 | 201 | 239 | 664 | ||||
| Cachuchos | Dentex nei | Dentex spp. | 1165 | 1032 | 891 | 114 | 491 | 54 | 248 | 626 | 515 | 5136 |
| Choupa | Black bream | Spondyliosoma cantharus | 375 | 234 | 292 | 82 | 79 | 52 | 126 | 1240 | ||
| Sargos | White seabreams nei | Diplodus spp. | 246 | 300 | 407 | 375 | 309 | 297 | 1934 | |||
| Pargos | “Pargo”Breams | Sparus spp. | 2833 | 2638 | 1500 | 3468 | 2088 | 2755 | 948 | 603 | 847 | 17680 |
| Outres Eaparideos | Other seabreams nei | Sparidae | 374 | 79 | 453 | 241 | 235 | 95 | ||||
| Total Eaparideos | Total seabreams | Total sparidae | 4244 | 3670 | 3066 | 4190 | 3380 | 3473 | 2232 | 3347 | 3456 | 31058 |
| Pembo | Rubberlip grunt | Plectorhinchus mediterraheus | 2833 | 2637 | 1501 | 3471 | 1738 | 1867 | 1810 | 2051 | 2927 | 20835 |
| Outros peixes | Other fishes | 17153 | 5607 | 3477 | 6481 | 8262 | 7105 | 8183 | 12613 | 14446 | 83327 | |
| Total peixes | Total fishes | 28931 | 12770 | 8408 | 14665 | 15147 | 12580 | 12423 | 18187 | 21069 | 144180 | |
| Moluscos | Molluscs | Mollusca | 152 | 116 | 119 | 416 | 220 | 69 | 63 | 46 | 1201 | |
| Crustáceos | Crustaceans | Cruatacea | 101 | 8 | 2 | 8 | 3 | 122 | ||||
| TOTAL | TOTAL | 29083 | 12770 | 8524 | 14784 | 15664 | 12808 | 12494 | 18258 | 21118 | 145503 | |
| № lanços | № of hauls | 27215 | 11950 | 7976 | 13834 | 14658 | 11985 | 11691 | ||||
| Dias de pesca | Days fished | 4532 | 2701 | 1643 | 2590 | 2589 | 1456 | 902 | ||||
| № horas de pesca | Hours fished | 80500 | 48622 | 29565 | 46596 | 46220 | 26336 | 6622 | ||||
Table 3 - Portuguese fishery in CECAF waters (1979–1984) with special reference to seabreams (Sparidae). (Tons.)
| Species | Years | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | |
|---|---|---|---|---|---|---|---|---|
| Pescadas | Hakes | Merluccius spp | 523 | 1767 | 135 | 198 | 176 | 240 |
| Caroupas e meros | Groupers | Epinephelus spp | 614 | 696 | 935 | 354 | 174 | 307 |
| Roncadores | Grounts | Pomadasysspp | 179 | 364 | 321 | 293 | 247 | 218 |
| Pombo | Rubberlip grunt | Plectorhinchus mediterraneus | 3471 | 1738 | 1867 | 1810 | 2051 | 2927 |
| Corvinas, rabetas, e rainhas | Meagres | Scianidae | 543 | 716 | 1149 | 851 | 666 | 369 |
| Boga | Bogue | Boops boops | 35 | 79 | 91 | 84 | 52 | 4 |
| Goraz | Common seabream | Pagellus bogaraveo | 10 | 59 | 49 | |||
| Besugo | Axillary seabream | Pagellus acarne spp | 159 | 1262 | 1279 | |||
| Bicas e ferreiras | Pandoras nei | Pagellus spp | 23 | 29 | 172 | 201 | 239 | |
| Cachuchos | Dentex nei | Dentex spp | 114 | 495 | 54 | 248 | 626 | 515 |
| Choupa | Black bream | Spondyliosoma cantharus | 234 | 292 | 182 | 79 | 52 | 126 |
| Sargos e safias | White breams nei | Diplodus spp Litognathus spp | 407 | 375 | 309 | 297 | ||
| Pargos | Pargo breams nei | Sparus spp | 3468 | 2088 | 2755 | 948 | 603 | 847 |
| Dourada | Gilthead seabream | Sparus aurata | 52 | 118 | 77 | |||
| Salema | Goldline | Sarpa salpa | 11 | 7 | 14 | |||
| Outros | Other seabreams | 339 | 362 | 94 | 58 | 9 | ||
| Total seabreams | 4190 | 3380 | 3473 | 2232 | 3347 | 3456 | ||
| Carapaus | Horse mackerel | Trachurus spp | 779 | 696 | 506 | 1804 | 6041 | 7011 |
| Atuns | Tuna nei | Tunnedae | 1038 | 261 | 530 | 967 | 748 | 1149 |
| P.espada preto | Black scabbard fish | Lepidopus caudatus | 1068 | 1170 | 1164 | 1590 | 1775 | 1806 |
| Cavala | Chub mackerel | Scamber japonicus | 1040 | 1323 | 1077 | 1275 | 1107 | 1216 |
| Outros | Other fishes molluscs and crustaceans | 1339 | 3553 | 1651 | 1120 | 1926 | 2419 | |
| Total of the landings | 14784 | 15664 | 12808 | 12494 | 18258 | 21118 | ||
Table 4- Portuguese fishery of seabreams in CECAF waters - 1984. Total landings by Trawl, line and gillnets fisheryes (%.).
| Trawl ‰. | Line ‰. | Gillnets ‰. | Line + Gillnets ‰. | Total ‰. | |||
|---|---|---|---|---|---|---|---|
| Boga | Bogue | Boops boops | 1.8 | - | - | - | 1.2 |
| Besugo | Axillary seabream | Pagellus acarne | 452.4 | 509.5 | 135.4 | 216.9 | 370.1 |
| Choupa | Black bream | Spondyliosoma cantharus | 18.2 | 38.0 | 79.4 | 70.4 | 36.5 |
| Goraz | Common seabream | Pagellus bogaraveo | 7.1 | 45.6 | 31.7 | 34.8 | 16.8 |
| Dourada | Gilthead seabream | Sparus aurata | 11.6 | 22.8 | 47.6 | 42.2 | 22.3 |
| Salema | Goldline | Sarpa salpa | 1.0 | 3.8 | 11.6 | 9.9 | 4.1 |
| Pargos | Seabreams nei | Sparus spp | 209.5 | 197.7 | 342.9 | 311.3 | 245.1 |
| Cachu¸hos | Dentex | Dentex spp | 185.9 | 68.4 | 83.6 | 80.3 | 149.0 |
| Sargo e Safia | Breams | Diplodus spp | 73.8 | 83.7 | 115.3 | 108.4 | 85.9 |
| Bicas e Ferreiros | Pandora | Pagellus spp | 38.7 | 30.4 | 152.4 | 125.8 | 69.2 |
Table 5 - Portuguese fishery in CECAF Waters 1983. Length composition of hakes (Merluccius spp)- Sampling - № and ‰
| Gear | Trawl fishery | Line fishery | Gillnets fishery | Line + Gillnets | TOTAL | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Classes (2 cm) | № | ‰ | № | ‰ | № | ‰ | № | ‰ | № | ‰ |
| 21 | 48 | 0.7 | 48 | 0.4 | 48 | 0.3 | ||||
| 3 | ||||||||||
| 5 | 1 | 0.01 | 1 | 0.01 | 1 | 0.01 | ||||
| 7 | 36 | 0.5 | 36 | 0.3 | 36 | 0.2 | ||||
| 9 | 74 | 1.1 | 74 | 0.6 | 74 | 0.5 | ||||
| 31 | 175 | 6.2 | 146 | 2.2 | 146 | 1.2 | 321 | 2.1 | ||
| 3 | 525 | 18.6 | 76 | 1.1 | 76 | 0.6 | 601 | 3.9 | ||
| 5 | 1050 | 37.3 | 22 | 0.4 | 53 | 0.8 | 75 | 0.6 | 1125 | 7.3 |
| 7 | 4375 | 155.3 | 24 | 0.4 | 823 | 12.2 | 847 | 6.8 | 5222 | 34.1 |
| 9 | 6300 | 223.6 | 89 | 1.6 | 752 | 11.1 | 841 | 6.7 | 7141 | 46.6 |
| 41 | 4375 | 155.3 | 312 | 5.4 | 911 | 13.5 | 1307 | 10.4 | 5682 | 37.1 |
| 3 | 4375 | 155.3 | 849 | 14.8 | 2284 | 32.5 | 3053 | 24.4 | 7428 | 48.5 |
| 5 | 1925 | 68.3 | 2284 | 39.8 | 5901 | 87.1 | 8185 | 65.4 | 10110 | 66.0 |
| 7 | 1575 | 55.9 | 2202 | 38.4 | 7194 | 106.2 | 9396 | 75.1 | 10971 | 71.6 |
| 9 | 1750 | 62.1 | 2105 | 36.7 | 9591 | 141.6 | 11696 | 93.5 | 13446 | 87.8 |
| 51 | 1050 | 37.3 | 2192 | 38.2 | 8920 | 131.7 | 11112 | 88.8 | 12162 | 79.4 |
| 3 | 350 | 12.4 | 3229 | 56.3 | 7113 | 105.0 | 10342 | 82.7 | 10692 | 69.8 |
| 5 | 3236 | 56.4 | 5805 | 85.7 | 9041 | 72.3 | 9041 | 59.0 | ||
| 7 | 350 | 12.4 | 4504 | 78.5 | 4432 | 65.4 | 8936 | 71.4 | 9286 | 60.6 |
| 9 | 4644 | 81.0 | 3929 | 58.0 | 8573 | 68.5 | 8573 | 55.9 | ||
| 61 | 5119 | 89.3 | 2525 | 37.3 | 7644 | 61.1 | 7644 | 49.9 | ||
| 3 | 4104 | 71.6 | 3060 | 45.2 | 7164 | 57.3 | 7164 | 46.7 | ||
| 5 | 4177 | 72.8 | 1471 | 21.7 | 5648 | 45.2 | 5648 | 36.9 | ||
| 7 | 3797 | 66.2 | 831 | 12.3 | 4628 | 37.0 | 4628 | 30.2 | ||
| 9 | 2303 | 40.2 | 849 | 12.5 | 3152 | 25.2 | 3152 | 20.6 | ||
| 71 | 1974 | 34.4 | 148 | 2.2 | 2122 | 17.0 | 2122 | 13.8 | ||
| 3 | 2111 | 36.8 | 243 | 3.6 | 2354 | 18.8 | 2354 | 15.4 | ||
| 5 | 1247 | 21.7 | 134 | 2.0 | 1381 | 11.0 | 1381 | 9.5 | ||
| 7 | 996 | 17.4 | 109 | 1.6 | 1105 | 8.8 | 1105 | 7.2 | ||
| 9 | 989 | 17.2 | 54 | 0.8 | 1043 | 8.3 | 1043 | 6.8 | ||
| 81 | 893 | 15.6 | 54 | 0.8 | 947 | 7.6 | 94 | 6.2 | ||
| 3 | 681 | 11.9 | 1 | 0.0 | 682 | 5.5 | 682 | 4.5 | ||
| 5 | 480 | 8.4 | 1 | 0.0 | 481 | 3.8 | 481 | 3.1 | ||
| 7 | 303 | 5.3 | 1 | 0.0 | 304 | 2.4 | 304 | 2.0 | ||
| 9 | 136 | 2.4 | 55 | 0.8 | 191 | 1.5 | 191 | 1.2 | ||
| 91 | 121 | 2.1 | 187 | 2.8 | 308 | 2.5 | 308 | 2.0 | ||
| 3 | 263 | 4.6 | 262 | 2.1 | 263 | 1.7 | ||||
| 5 | 288 | 5.0 | 288 | 2.3 | 288 | 1.9 | ||||
| 7 | 357 | 6.2 | 357 | 2.9 | 357 | 2.3 | ||||
| 9 | 364 | 6.3 | 364 | 2.9 | 364 | 2.4 | ||||
| 101 | 357 | 6.2 | 357 | 2.9 | 357 | 2.3 | ||||
| 3 | 124 | 2.2 | 124 | 1.0 | 124 | 0.8 | ||||
| 5 | 10 | 0.2 | 10 | 0.1 | 10 | 0.1 | ||||
| 107 | 61 | 1.1 | 61 | 0.5 | 61 | 0.4 | ||||
| 9 | 103 | 1.8 | 103 | 0.8 | 103 | 0.7 | ||||
| 111 | 51 | 0.9 | 51 | 0.4 | 51 | 0.3 | ||||
| 3 | 13 | 0.2 | 13 | 0.1 | 13 | 0.1 | ||||
| 5 | 46 | 0.8 | 46 | 0.4 | 46 | 0.3 | ||||
| 7 | 46 | 0.8 | 46 | 0.4 | 46 | 0.3 | ||||
| 9 | 3 | 0.1 | 3 | 0.0 | 3 | 0.0 | ||||
| 121 | 139 | 2.4 | 139 | 1.1 | 139 | 0.9 | ||||
| TOTAL | 28175 | 57348 | 67732 | 125080 | 153255 | |||||
| Landings sampled (Kg) | 15227 | 98530 | 64754.5 | 163284.5 | 178511.5 | |||||
| Mean length (cm) | 41.2 | 62.2 | 52.4 | 54.7 | 3.9 | |||||
| Mean weight (Kg) | 0.5 | 1.7 | 1.0 | 1.3 | 1.2 | |||||
Table 6 - Portuguese fishery in CECAF waters. Div. FAO 34.1.1 - 1984 White hake fishery (M. merluccius). Number and ‰ of fish landed from trawlers and line vessels studied (sampling)
| Arte/gear Classed cm | Arrasto Trawl (1) | Linha Line-fishery (2) | Total (1) + (2) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| № of fishes | № fishes | № fishes | |||||||
| 1 cm | 2 cm | ‰ | 1 cm | 2 cm | ‰ | 1 cm | 2 cm | ‰ | |
| 37 | 68 | 68 | 1.1 | 68 | 68 | 1.0 | |||
| 8 | 68 | 68 | |||||||
| 9 | 188 | 188 | 30.9 | 68 | 136 | 2.1 | 256 | 324 | 4.7 |
| 40 | 188 | 203 | 391 | ||||||
| 1 | 94 | 282 | 46.4 | 349 | 552 | 8.7 | 443 | 834 | 12.0 |
| 2 | 282 | 428 | 710 | ||||||
| 3 | 375 | 657 | 108.1 | 746 | 1174 | 18.5 | 1121 | 1831 | 26.4 |
| 4 | 751 | 1022 | 1773 | ||||||
| 5 | 375 | 1126 | 183.3 | 1600 | 2622 | 41.4 | 1975 | 3748 | 54.0 |
| 6 | 282 | 2435 | 2717 | ||||||
| 7 | 282 | 564 | 92.8 | 2437 | 4872 | 76.9 | 2719 | 5436 | 78.3 |
| 8 | 375 | 3357 | 3732 | ||||||
| 9 | 214 | 589 | 96.9 | 4138 | 7495 | 118.3 | 4352 | 8084 | 116.5 |
| 50 | 401 | 3781 | 4182 | ||||||
| 1 | 601 | 1002 | 164.9 | 3488 | 7269 | 114.8 | 4089 | 8271 | 119.1 |
| 2 | 642 | 2959 | 3601 | ||||||
| 3 | 79 | 721 | 118.6 | 2353 | 5312 | 83.9 | 2432 | 6033 | 86.9 |
| 4 | 79 | 2298 | 2377 | ||||||
| 5 | 264 | 343 | 56.4 | 2228 | 4526 | 71.5 | 2792 | 4869 | 70.1 |
| 6 | 79 | 2809 | 2888 | ||||||
| 7 | 106 | 185 | 30.4 | 2997 | 5806 | 91.7 | 3103 | 5991 | 86.3 |
| 8 | 79 | 2658 | 2737 | ||||||
| 9 | 79 | 158 | 26.0 | 3236 | 5894 | 93.1 | 3315 | 6052 | 87.3 |
| 60 | 106 | 1948 | 2054 | ||||||
| 1 | 79 | 185 | 30.4 | 1933 | 3881 | 61.3 | 2012 | 4066 | 58.6 |
| 2 | 26 | 2213 | 2239 | ||||||
| 3 | 26 | 52 | 8.6 | 1742 | 3955 | 62.4 | 1768 | 4007 | 57.7 |
| 4 | 1944 | 1944 | |||||||
| 5 | 1176 | 3120 | 49.3 | 1176 | 3120 | 44.9 | |||
| 6 | 26 | 1292 | 1318 | ||||||
| 7 | 26 | 3 | 575 | 1867 | 29.5 | 757 | 1893 | 27.3 | |
| 8 | 453 | 453 | |||||||
| 9 | 597 | 1050 | 16.6 | 597 | 1050 | 15.1 | |||
| 70 | 393 | 393 | |||||||
| 1 | 89 | 482 | 7.6 | 89 | 482 | 6.9 | |||
| 2 | 188 | 188 | |||||||
| 3 | 382 | 570 | 9.0 | 382 | 570 | 8.2 | |||
| 4 | 129 | 129 | |||||||
| 5 | 419 | 548 | 8.7 | 419 | 548 | 7.9 | |||
| 6 | 332 | 332 | |||||||
| 77 | 279 | 611 | 9.6 | 279 | 611 | 8.8 | |||
| 38 | 244 | 244 | |||||||
| 9 | 151 | 395 | 6.2 | 151 | 395 | 5.7 | |||
| 80 | 109 | 109 | |||||||
| 1 | 109 | 1.7 | 109 | 1.6 | |||||
| 2 | |||||||||
| 3 | 25 | 25 | 0.4 | 25 | 25 | 0.4 | |||
| 4 | 24 | 24 | |||||||
| 5 | 14 | 38 | 0.6 | 14 | 38 | 0.5 | |||
| 6 | 39 | 39 | |||||||
| 7 | 44 | 83 | 1.3 | 44 | 83 | 1.2 | |||
| 8 | 39 | 39 | |||||||
| 9 | 72 | 111 | 108 | 72 | 111 | 1.6 | |||
| 90 | 74 | 74 | |||||||
| 1 | 79 | 153 | 2.4 | 79 | 153 | 2.2 | |||
| 2 | 67 | 67 | |||||||
| 3 | 43 | 110 | 1.8 | 43 | 110 | 1.6 | |||
| 4 | 56 | 56 | |||||||
| 5 | 69 | 125 | 2.0 | 69 | 125 | 1.8 | |||
| 6 | 33 | 33 | |||||||
| 7 | 10 | 43 | 0.7 | 10 | 43 | 0.6 | |||
| 8 | 46 | 46 | |||||||
| 9 | 10 | 56 | 0.9 | 10 | 56 | 0.8 | |||
| 100 | |||||||||
| 1 | 10 | 10 | 0.2 | 10 | 10 | 10 | 0.1 | ||
| 2 | 23 | 23 | |||||||
| 3 | 10 | 33 | 0.5 | 10 | 33 | 0.5 | |||
| 4 | 67 | 67 | |||||||
| 5 | 67 | 1.1 | 67 | 1.0 | |||||
| 6 | 57 | 57 | |||||||
| 7 | 57 | 1.1 | 57 | 0.8 | |||||
| 8 | 57 | 57 | |||||||
| 9 | 57 | 1.1 | 57 | 0.8 | |||||
| 110 | |||||||||
| 1 | 57 | 57 | 1.1 | 57 | 57 | 0.8 | |||
| Total | 6078 | 63339 | 69417 | ||||||
| Amostra/Sampling | |||||||||
| Peso/Weight landed (Kg) | 4500 | 80354 | 84854 | ||||||
Peso médio/mean weight | (kg)0.7 | 1.3 | 1.2 | ||||||
| Compto.médio/mean length (cm) | 48.4 | 56.3 | 55.6 | ||||||
