Appendix 2.2 Medits Co-ordination committee
Rome, the 3rd and 4th of July 1998
The
Medits Co-ordination committee
met in Rome, University Sapienza, the 3rd and 4th of July 1998, with the
following participants:
J. Bertrand
L. Gil de Sola
C. Papaconstantinou
G. Relini
A. Souplet
Invited persons:
G.
Ardizzone
G. Lembo
F. Corsi
The
Committee has worked on the following topics.
To take
into account the remarks of the supervisor who has analysed the final Medits 1996-97 report and the fact that
only an interim report will have to be produced by the end of this year, the
biological report of the survey ‘98 will be presented as previously in two
sections (by region and globally), but with some modifications as explained in
the guideline in appendix 2.2.1(a & b). The report will be limited to an
analysis of the results of the 1998 survey, the global analysis being delayed
at the end of the current contrat, with inclusion of the 1999 data. The
presentation of the tables and figures will be modified as suggested by the
supervisor (data arranged by species in the tables, maximum size of length
distribution reduced so as to enlarge the diagrams). The CC has considered that
the detailed species length distributions by stratum is useful for the group.
It has decided to maintain them in the documentation available to the partners
of the programme.
It
is also decided to introduce density estimates by length groups in the standard
analyses for some species. The objective is to introduce an evaluation of the
nursery areas in the zone. The following species have been selected for this
approach:
Fishes:
Lophius budegassa,
Merluccius merluccius,
Mullus barbatus,
Pagellus acarne,
Raja clavata,
Trisopterus minutus capelanus,
Cephalopoda:
Eledone cirrhosa,
Octopus vulgaris,
Crustaceans:
Aristaeomorpha foliacea,
Aristeus antennatus,
Nephrops norvegicus.
For
each of these species, the CC members will propose, with a short
reference/justification, a length to share the juveniles and adults. These
proposals will be sent to the general co-ordinator by the 15th of September
1998. The REGIND program will be improved so as to include this analysis
(action: A. Souplet).
Each of
the regional groups will produce a file with the temperature data collected
during the hauls. These data will be presented in a format to be proposed by
the co-ordinator of the MDMS project. It is expected that this format will be
available by the end of July 1998. The co-ordinators of the regional groups
will send their data to the general co-ordinator by the end of September.
Detailed
data of the survey and presentation of variations between the years will be
circulated to each of the regional co-ordinators during the next general
meeting in Kavala (November 1998) so as to permit them to check their data.
During this meeting, the basic information requested for the common analysis to
be put in the final report (particularly for the comparison between years) will
be discussed.
During
the meeting in Kavala (November 1998), a discussion will be introduced on the
efficiency of the Medits gear
regarding the different target species. This discussion will be based (i) on
the results obtained by L. Fiorentini and P.Y. Dremière within the ESMED
project, (ii) on a comparison between the efficiency of the Medits and professional gears in Italy
and (iii) on the information get from the records on the geometry of the gear
obtained during the Medits
surveys aboard different vessels during the last years.
To
better adjust to the state of the fisheries the list of species measured and to
take into account a remark of the supervisor who recommended to enlarge the
list of species to be measured during the Medits
surveys, the CC has considered the mean biomass indices obtained during the Medits surveys 1994-1997 for 88 species
(see appendix 2.2.2). From this analysis, the CC has decided to add the
following species in the Reference list for the next surveys: Aspitrigla cuculus, Galeus melastomus,
Scyliorhinus canicula, Spicara smaris and Trigloporus lastoviza.
As the
delay between the end of the 1999 survey and the production of the final report
is very short, the CC has decided to organize a working group during the spring
of 1999 to produce a first analysis of the time variations of the data inside
the series 1994-1998. This analysis will be updated during the final meeting of
the project (Autumn 1999) for inclusion in the final report.
The Medits CC has decided to push on the
development of methodological approaches to improve the quality of the work
done inside the programme. It has highlighted the need to progress in priority
on the following topics:
· Intercalibration between the different vessels involved in the Medits programme
Since
the beginning of the programme, the CC is preoccupied to make sure that the
results obtained by the different vessels involved in the programme may be
considered as homogeneous. As a first step, the CC had decided to carefully
standardize the work at sea aboard the different vessels involved in the
surveys. Nevertheless, till now no specific experiment has been carried on to
verify the quality of the obtained results. This is mainly due to the fact that
the CC has estimated that this kind of experiment would be very expensive at
the Medits scale (in term of
costs as well as on technical and scientific means) for a doubtful result.
However, the CC has noted the request from different supervisors of the
programme. He has decided to incite the group to progress on this question. As
different projects have been conducted on this question in Europe during the
last few years, particularly in Italy (comparison between the Medits and the GRUND projects), in
France (intercalibration between the two R/V Thalassa) and between four
vessels/areas in the north-west Atlantic (SESITS project), the CC has
considered that the definition of an experiment inside the Medits programme should strongly take
benefit of all these studies. As most of them are not yet published, the CC has
recommended to progress on this question by a careful examination of the
results of these projects and the situation in other such programmes (like
IBTS, etc.) to base the definition of a methodology applicable to the Medits programme.
· Sampling design
The CC
has taken notice that the Commission wonders about an assumption for a future
reduction of cost and time duration of the collection of periodic abundance
indices from trawl surveys in the Mediterranean. Globally, this objective would
be obtained by a reduction of the number of hauls (see general map of the hauls
in appendix 2.2.3). As different strategies should be foreseen with this goal,
the CC incites the Medits group
to statistically analyse different possibilities of revision of the sampling
scheme, but preserving the continuity of the series.
· Development/application of new methodologies
The
symposium in Pisa (March 1998) has shown different ways of analysis of the Medits data which should be of a strong
interest for management purpose. The Medits
CC greatly encourage the scientists involved in the Medits programme to continue to progress in that direction.
To
favour these developments, the CC has decided to support a new proposal on
« Methodological improvement for Medits »
to be presented in answer to the EC-DGXIV Call for proposals for studies (1998;
deadline 25/08/1998). This proposal will include three main tasks on the topics
named above. The project will be managed by the SIBM (President: Prof. G.
Relini). It will be prepared by the following co-ordination team: G. Ardizzone
(General Co-ordinator), A. Souplet (Intercalibration), C. Papaconstantinou
(Sampling design), G. Lembo (New approaches) and L. Gil de Sola (Fishing
effort, to be included in New approaches).
The
process for publication of selected papers in Aquatic Living Resources is in
progress. The main authors of the selected papers have been invited to send
their final proposal to the ALR’s editor.
The
Co-ordination committee is waiting for the final acceptance for the publication
of all the other papers in a special issue of the series ‘’Actes de colloques’’
of IFREMER. It is foreseen that the evaluation of these papers by the
Co-ordination committee will be achieve before the next Medits general meeting.
The CC
intends to incite the production of a book to present the main results obtained
from the Medits data in the whole
area. It is suggested to organise this presentation by species groups. The work
should be divided between the scientific teams involved in the programme. The
members of the CC are invited to define a list of priority topics to include in this document.
From a
proposal by P. Oliver (FAO), the CC has attended a presentation of an
Environment Analysis System (EASY) in FAO the 3rd of November. The show was
done by Dale Kiefer (University of South California), the author of the
software.
From
this short view, the CC have noted that this software would offer a large
extend of the possibilities usually available in the GIS packages. It has noted
that this tool should permit the manipulation of a lot of marine environment
data. Nevertheless, for the time being, it seems to be mainly oriented towards
the pelagic fields. Its specific usefulness for the benthic domain compared
with the one of the tools already used in the Mediterranean, notably within
FIGIS, should be evaluated.
Finally,
the CC has considered that it would be advisable to better know the EASY
software. This should be done through an exchange of the EASY package and Medits data. Preliminary, the CC has
decided to make sure of the FAO’s interest for this project by requesting an
official proposal for co-operation.
The CC
has decided that the next general meeting will meet in Kavala (Greece), the
19th and 20th of November 1998. A Medits
Steering committee meeting will be held the day before (the 18th of November)
during the afternoon, at the same place. It is suggested that other groups
which involve scientists working in the Medits
programme (as MDMS and MEDLAND) could benefit of this gathering to meet the
same day, if necessary.
During
the VII International congress of ecology (INTECOL) in Florence (19-25 July
1998), a symposium will deal with ‘’Environmental peculiarities and biological
resources distribution in the Mediterranean sea’’ (Co-ordinator: G. Relini).
This symposium will offer a very promising forum to discuss results obtained
within the Medits programme. The
scientists involved in the Medits
programme are incited to take part in it.
Topic Date Action
· Temperature exchange format............................................ by 31/07/1998..... C.Y. Politou/GC
· Proposal ‘’Methodological improvement for Medits’’......... by 25/08/1998 .... various
· Threshold lengths between juveniles and adults................. by 15/09/1998..... CC
· Transmission of ‘98 Medits data (after validation)............ by 31/09/1998..... SC
· General Medits meeting (in Kavala, Greece).................... 19-20/11/1998
· Annual interim report............................................................ 31/12/1998.......... various
SC: Steering committee members, CC:
Co-ordination committee members, GC: General co-ordinator
___
Appendix 2.2.1a
Guidelines to prepare the Technical report Medits ‘98
This report will be prepared by each of the Regional co-ordinators
applying exactly the same rules as for the previous annual reports.
A short text (approximately half a page by region) explaining the main
features of the survey in 1998 (in WORD 6).
All the following files are in ascii. All of them, except the type [4]
file, will have exactly the same format as for the previous years.
Type |
Name |
[1] Hauls data |
TAcc98rr.TXT |
[2] Catch by haul |
TBcc98rr.TXT |
[3] Biological parameters |
TCcc98rr.TXT |
[4] Temperature (see format below) |
TDcc98rr.TXT |
Strata / Hauls numbers |
TRcc98rr.DAT |
Strata / Surface |
STcc98rr.DAT |
with cc:
country code (2 characters); rr:
region code (2 characters or ‘__’ when no region).
All the tables will be presented in EXCEL 5 or WORD 6.
Type |
Name |
Vessel sheet (if the vessel is new or modified) |
VScc98rr.DOC |
Boarding table |
BTcc98rr.XLS |
Stratification scheme |
SCcc98rr.XLS |
with cc:
country code (2 characters); rr:
region code (2 characters or ‘__’ when no region).
Appendix 2.2.1b
Guidelines to prepare the Biological report Medits ‘98
The Co-ordination committee has decided to improve the presentation of
the results obtained during the Medits
‘98 Survey compared with the schedule previously adopted. This is mainly
due to the following considerations. From now, the different teams involved in
the programme have a general knowledge of the basic information got from the
programme. Furthermore, the series is long enough to reinforce analyses at a
more global level. Nevertheless, as the Medits
‘98 report will be only an interim report, an inter-annual analysis will be
only included in the final report. This progress is also defined to take into
consideration the recommendations given by the Commission from the presentation
of the previous reports.
The following recommendation will be taken into account in all the
texts: general data tables with all the weight and number indices by main area
will be included as appendix in the report (see an example in appendix
2.2.1b.1). For this reason, only a few values and very short tables should be
put in the text, when strictly necessary.
Survey Results by region
As for the previous surveys, this part of the report will be completed
by each of the regional groups before the general meeting in November 1998.
The introduction shortly recalls some information on the context of the Medits ‘98 Survey in the region, like
the number of hauls, the number of species caught and some general information
related with the species caught.
In this part, the comments will be focused on the most important species
(included or not in the Reference list of species) in each of the three groups.
For these species, the comments will highlight their main characteristics of
density (abundance and biomass indices) and length distribution all over the
region in 1998.
In each region, five groups of strata will be considered. For each of
the strata, the comments will underline some general characteristics on the
distribution of the most important species in the area in 1998.
Biological results: Global analysis
This part will be completed by working groups during the Medits meeting in November 1998. The
results presented will cover the whole Medits
area.
The results will refer to number and biomass indices as well as length
distributions. They will be presented by species, only for the main species of
the reference list. List of species to the appreciation of the working group.
___
Format Temperature file
Code (optional) |
Name |
Position |
Type* |
Extend |
Comment |
TypEnr |
Type
of recording |
1 |
- |
2 |
2A |
TD |
Fixed
value ’TD’ |
Pays |
Country |
3 |
- |
5 |
3A |
See appendix VIII |
ISO code |
Bateau |
Vessel |
6 |
- |
8 |
3AN |
See appendix VIII |
Medits code |
An |
Year |
9 |
- |
10 |
2N |
80 to 99 |
Ex : 1994 > 94 |
NoTrai |
Number of the haul |
11 |
- |
13 |
3N |
1 to 999 |
One series/vessel/year |
ToDeb |
Bottom temperature (begin of haul) |
14 |
- |
18 |
5N |
0.00 to 30.00 |
in C° with 2 decimals |
ToFin |
Bottom temperature (end of haul) |
19 |
- |
23 |
5N |
0.00 to 30.00 |
in C° with 2 decimals |
Method |
Measurement
system |
24 |
- |
25 |
2A |
See
appendix |
Medits code |
* All numeric fields (N) right justified, zeros
filled, except when spaces are used to indicate no information.
All alpha fields (A) and mixed
alpha/numeric fields (AN) left justified, space filled.
Medits Codes for measurement devices
Medits code |
Device |
Comments |
VA |
Vemco- Minilog TDR -5 to +35 C° |
|
XA |
XBT |
|
SA |
SCANMAR |
|
Appendix
2.2.1b.1 EXAMPLE OF TABLE TO BE INCLUDED IN THE REPORT
Biomass indices (kg/km²) by region - Medits 96
Medits YEAR : 1996 INDEX : BIOMASS INDEX
TOTAL 10-200m 200-800m
Ind CV Ind
CV Ind CV
CITHMAC 111
.07 97.36 .22
97.36 .00 .00
CITHMAC 112
.27 34.56 .50
34.56 .00 .00
CITHMAC 113
.30 38.90 .39
38.90 .00 .00
CITHMAC 121
10.87 18.32 13.39
18.32 .00 .00
CITHMAC 131
.00 .00 .00
.00 .00 .00
CITHMAC 132
.14 25.63 .27 26.06 .01
97.59
CITHMAC 133
.56 44.65 .88
45.03 .01 98.58
CITHMAC 134
.75 25.53 1.92
25.53 .00 .00
CITHMAC 211
2.57 19.04 2.79
19.04 .00 .00
CITHMAC 221
.19 30.95 .33
30.95 .00 .00
CITHMAC 222
1.94 53.07 3.32
53.07 .00 .00
CITHMAC 223
2.00 19.58 5.39
19.58 .00 .00
CITHMAC 224
4.39 39.53 9.07
39.53 .00 .00
Medits YEAR : 1996 INDEX : BIOMASS INDEX
TOTAL 10-200m 200-800m
Ind CV Ind
CV Ind CV
ELEDCIR 111
6.06 27.38 11.72
40.71 3.64 33.16
ELEDCIR 112
8.97 34.31 9.44
46.44 8.42 50.83
ELEDCIR 113
23.92 19.64 25.13
23.36 19.93 28.97
ELEDCIR 121
14.98 11.20 16.27
11.78 9.41 35.47
ELEDCIR 131
12.22 20.11 15.00
41.85 10.81 17.36
ELEDCIR 132
14.12 8.88 13.32
12.66 15.05 12.44
ELEDCIR 133
9.32 11.77 9.47
14.80 9.07 19.39
ELEDCIR 134
3.39 26.51 6.40
34.98 1.45 22.64
ELEDCIR 211
8.34 19.46 8.06
21.51 11.61 31.52
ELEDCIR 221
5.81 13.01 7.85
15.21 3.01 24.25
ELEDCIR 222
6.59 32.58 5.93
42.73 7.53 49.73
ELEDCIR 223
1.96 24.70 2.99
32.37 1.35 38.16
ELEDCIR 224
7.55 26.83 13.86
29.92 1.64 33.78
Medits YEAR : 1996 INDEX : BIOMASS INDEX
TOTAL 10-200m 200-800m
Ind CV Ind
CV Ind CV
ELEDMOS 111
2.56 38.00 8.12
40.05 .20 51.51
ELEDMOS 112
.24 68.70 .44
68.70 .00 .00
ELEDMOS 113
.66 30.05 .86
30.05 .00 .00
ELEDMOS 121
5.08 14.03 6.23
14.08 .11 81.18
ELEDMOS 131
3.35 55.56 9.66
57.00 .13 101.61
ELEDMOS 132
.25 39.85 .47
39.85 .00 .00
ELEDMOS 133
2.36 26.61 3.72
26.61 .00 .00
ELEDMOS 134
2.57 38.54 6.53
38.78 .03 100.03
ELEDMOS 211
9.37 16.51 10.16
16.55 .23 79.28
ELEDMOS 221
1.24 27.11 2.14
27.11 .00 .00
ELEDMOS 222
1.24 38.09 2.13
38.09 .00 .00
ELEDMOS 223
4.81 43.64 12.97
43.64 .00 .00
ELEDMOS 224
11.50 44.60 23.61
44.92 .16 102.40
Medits YEAR : 1996 INDEX : BIOMASS INDEX
TOTAL 10-200m 200-800m
Ind CV Ind
CV Ind CV
EUTRGUR 111
.00 .00 .00
.00 .00 .00
EUTRGUR 112
.00 105.81 .01 105.81 .00
.00
EUTRGUR 113
.31 64.09 .41
64.09 .00 .00
EUTRGUR 121
42.70 13.21 49.49
12.82 13.41 90.85
EUTRGUR 131
.00 .00 .00 .00 .00
.00
EUTRGUR 132
.18 63.06 .33
63.06 .00 .00
EUTRGUR 133
.15 61.07 .23
61.07 .00 .00
EUTRGUR 134
.00 .00 .00
.00 .00 .00
EUTRGUR 211
1.25 23.69 1.36
23.69 .00 .00
EUTRGUR 221
.04 26.39 .07
26.39 .00 .00
EUTRGUR 222
.43 87.45 .74
87.45 .00 .00
EUTRGUR 223
.11 48.49 .29
48.49 .00 .00
EUTRGUR 224
.76 44.43 1.56
44.50 .00 101.59
Medits YEAR : 1996 INDEX : BIOMASS INDEX
TOTAL 10-200m 200-800m
Ind CV Ind
CV Ind CV
HELIDAC 111
27.69 24.30 7.41
67.24 36.32 25.76
HELIDAC 112
6.06 49.15 2.78
56.14 9.85 62.53
HELIDAC 113
2.13 74.16 .43
78.53 7.73 86.42
HELIDAC 121
9.30 47.81 .23
40.53 48.43 48.78
HELIDAC 131
10.18 29.66 .00
.00 15.38 29.66
HELIDAC 132
2.60 21.98 .71
48.22 4.76 24.38
HELIDAC 133
5.93 35.10 1.60
62.42 13.43 40.34
HELIDAC 134 2.59
31.18 .09 41.14
4.19 31.60
HELIDAC 211
.47 63.81 .06
35.01 5.36 71.63
HELIDAC 221
1.62 35.33 .23
36.74 3.52 38.32
HELIDAC 222
.56 61.59 .00
.00 1.34 61.59
HELIDAC 223
4.46 32.98 .14
67.26 7.01 33.36
HELIDAC 224
1.02 97.12 .00
.00 1.98 97.12
Medits YEAR : 1996 INDEX : BIOMASS INDEX
TOTAL 10-200m 200-800m
Ind CV Ind
CV Ind CV
ILLECOI
111 10.63 70.33 30.58 81.49
2.13 47.44
ILLECOI
112 9.46 23.76 13.74 23.02
4.53 70.27
ILLECOI
113 8.09 26.44 10.56 26.44
.00 .00
ILLECOI
121 1.30 27.90 1.60 27.90
.00 .00
ILLECOI
131 .76 37.68 1.27 32.15
.49 76.17
ILLECOI
132 2.64 13.53 4.55 14.20
.45 43.84
ILLECOI
133 3.10 14.70 3.80 16.72
1.87 30.79
ILLECOI
134 3.13 17.64 5.94 21.45
1.33 29.44
ILLECOI
211 6.09 12.54 5.95 13.58
7.85 28.53
ILLECOI
221 2.62 10.10 4.30 10.48
.33 35.24
ILLECOI
222 1.27 61.78 2.08 64.30
.12 67.65
ILLECOI
223 11.58 25.08 9.95 22.85
12.54 35.23
ILLECOI 224
18.31 34.55 7.48
29.39 28.45 42.44
Medits YEAR : 1996 INDEX : BIOMASS INDEX
TOTAL 10-200m 200-800m
Ind CV Ind
CV Ind CV
LEPMBOS 111
.00 .00 .00
.00 .00 .00
LEPMBOS 112
.22 54.11 .00
.00 .47 54.11
LEPMBOS 113
1.70 19.40 .54
52.94 5.50 19.18
LEPMBOS 121
7.89 14.83 8.74
15.92 4.22 38.54
LEPMBOS 131
1.81 26.31 .00
.00 2.73 26.31
LEPMBOS 132
1.03 11.17 .67
25.00 1.45 10.81
LEPMBOS 133
1.72 13.58 .71
28.29 3.49 15.43
LEPMBOS 134
.50 33.47 .01 100.10 .82 33.66
LEPMBOS 211
1.14 33.53 .43
41.54 9.44 46.47
LEPMBOS 221
.73 14.27 .28
38.52 1.35 14.70
LEPMBOS 222
3.43 38.64 .26 140.78 7.88 39.90
LEPMBOS 223
3.89 22.41 .19
87.78 6.07 22.77
LEPMBOS 224
4.44 17.51 3.62
34.13 5.21 18.52
Medits YEAR : 1996 INDEX : BIOMASS INDEX
TOTAL 10-200m 200-800m
Ind CV Ind
CV Ind CV
LOLIVUL
111 .02 106.20 .06 106.20 .00 .00
LOLIVUL
112 .80 69.11 1.50 69.11
.00 .00
LOLIVUL
113 1.10 83.81 1.44 83.81
.00 .00
LOLIVUL
121 .29 29.01 .36 29.01
.00 .00
LOLIVUL
131 2.86 84.94 .96 88.94
3.83 95.14
LOLIVUL
132 .36 19.85 .67 19.85
.00 .00
LOLIVUL
133 .93 36.46 1.46
36.46 .00 .00
LOLIVUL
134 .73 30.51 1.85 30.51
.00 .00
LOLIVUL
211 .71 27.95 .76 28.27
.11 102.95
LOLIVUL
221 1.36 29.69 2.31 30.14
.05 90.58
LOLIVUL
222 2.61 33.67 4.36 34.47
.16 99.33
LOLIVUL
223 1.48 41.05 4.00 41.05
.00 .00
LOLIVUL 224
.04 101.86 .09 101.86 .00
.00
Appendix 2.2.2
Mean density class for 91 species (in total
weight) from the Medits 1994-1997
surveys
File NI9810.XLS (see extract below)
Appendix 2.2.3
Location of the Medits hauls in 1996