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.

1.     Preparation of the Survey 1998’s report

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.

1.     Fittings of the reference list of species

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.

2.     Inter-annual analysis

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.

3.     New proposals for the future of the Medits programme

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).

4.     Publication of the papers presented in Pisa

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.

5.     Publication of Medits data

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.

6.     Presentation of the EASY system

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.

7.     Next meeting

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.

8.     Miscellaneous

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.

9.     Summary agenda

 

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.

10.     Text

A short text (approximately half a page by region) explaining the main features of the survey in 1998 (in WORD 6).

11.     Files and tables

11.1     Files

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).

11.2     Tables

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.

12.     Introduction

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.

13.     Global comments for Fish, Crustaceans and Cephalopods, Survey 1998

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.

13.1     Fish

13.2     Crustaceans

13.3     Cephalopods

14.     Comments by stratum, Survey 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.

14.1     Stratum 10-50 m

14.2     Stratum 50-100 m

14.3     Stratum 100-200 m

14.4     Stratum 200-500 m

14.5     Stratum 500-800 m

 

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.

15.     General results for 1998

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.

15.1     Fish

15.2     Crustaceans

15.3     Cephalopods

___

 

 

 

 

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