Scientific Cooperation to Support Responsible Fisheries in the Adriatic Sea

 Fishery Shared Resources --> Identification of Population Units in Adriatic Sea Shared Stocks by Genetic Structure Analysis
Overall Objective:

 AdriaMed Events
 Presentation at other meetings
 Training sessions
 Publications

Analysis and assessment of genetic homogeneity/heterogeneity of the main species whose stocks are shared in the Adriatic Sea. The specific goals of this project was:

  1. to develop species-specific genetic markers useful for the stock structure analysis (i.e. microsatellite and mitochondrial loci);

  2. to define the genetic polymorphism of Adriatic stocks;

  3. to identify the number and boundaries of population units in the area investigated.
Methodology:

Use of DNA molecular marker analysis to analyse samples of seven selected demersal species representative of the whole Adriatic Sea basin (Solea vulgaris, Pagellus erythrinus, Merlangius merlangus, Sepia officinalis, Loligo vulgaris, Eledone cirrhosa, and Eledone moschata).
Preliminary Results:

This research programme represents the first example of a multi-species analysis of the population’s genetic structure regarding a comprehensive pool of internationally-relevant shared stocks.

Species-specific microsatellite molecular markers were developed for all the seven target species. Genetic estimators for population status (i.e. genetic polymorphism in terms of allelic diversity, heterozygosity and fitting of Hardy-Weinberg equilibriium) and structure (i.e. genetic differentiation in terms of fixation indexes and gene flow rates) were applied using specific statistical software. The results showed high levels of genetic polymorphism and the relevance of the Hardy-Weinberg equilibrium in several species (Loligo vulgaris, Nephrops norvegicus and Mullus barbatus). Similarly, high levels of genetic homogeneity were observed among geographical samples in most species (Loligo vulgaris, Nephrops norvegicus, Mullus barbatus and Solea vulgaris), clearly suggesting the occurrence of single population units within the Adriatic shared stocks. The low genetic polymorphism and weak genetic divergences occasionally found (Lophius budegassa) could probably be related to the specific bio-ecological and behavioural features, and/or to methodological artefacts.

The genetic structure analysis for the Adriatic stocks of several other species (Eledone cirrhosa, E. moschata, Parapeneaus longirostris, Merlangius merlangus, Pagellus erythrinus, S. pilchardus and Engraulis encrasicolus) is ongoing. Preliminary data, not presented yet, revealed substantial genetic homogeneity within these stocks.

AdriaMed Events:
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Presentation at other meetings:
name:

GFCM-SAC Sub-Committee on Stock Assessment (SCSA) - Working Group on Demersal Fish
date and place:

6-7/5/2004  - Malaga - Spain
link:

name:

GFCM-SAC Sub-Committee on Stock Assessment (SCSA), Working Group on Demersal Fish
date and place:

20-22/3/2002  - Rome - Italy
link:

name:

GFCM-SAC - Workshop on Stock Assessment and Production of Shared Demersal Fishery Resources in the Mediterranean
date and place:

18-19/3/2002  - Rome - Italy
link:

Training sessions:
name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea. Session 8: Vulnerability Assessment of Adriatic fisheries to climate
date and place:

08/06/2020  - SKYPE -  

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea. AdriaMed Study Group on intercalibration of demersal fish otolith reading (Solea). Session 7: roadmap for
date and place:

05/06/2020  - SKYPE -  

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea. AdriaMed Study Group on intercalibration of demersal fish otolith reading (Solea). Session 6: roadmap for
date and place:

03/06/2020  - SKYPE -  

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea. Session 5: Stock Assessment (roadmap for
date and place:

28/05/2020  - SKYPE -  

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea. Session 4: Stock Assessment of
date and place:

26/05/2020  - SKYPE -  

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea. Session 3: MEDITS surveys in GSA 17
date and place:

22/05/2020  - SKYPE -  

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea. Session 2: AIS data analysis
date and place:

20/05/2020  - SKYPE -  

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea. Session 1: UnderWater Television surveys
date and place:

18/05/2020  - SKYPE -  

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

18/05-8/06/2020  - SKYPE -  

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

24-25/10/2019  - Rome - Italy

name:

AdriaMed Study Group on on intercalibration of fish otolith reading (
date and place:

29-30/10/2018  - Rome - Italy

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

08-09/10/2018  - Rome - Italy

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

13/09/2018  - Split - Croatia

name:

AdriaMed Study Group on Jabuka/Pomo Pit and on spatial fisheries analysis
date and place:

22-23/02/2018  - Rome - Italy

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

24-25/10/2017  - Rome - Italy

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

19-20/10/2016  - Rome - Italy

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

11-12/11/2015  - Ljubljana - Slovenia

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

7-9/10/2014  - Rome - Italy

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

23-25/10/2013  - Kotor - Montenegro

name:

AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

17-19/09/2012  - Fano - Italy

name:

The AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

3-6/10/2011  - Durrës - Albania

name:

The AdriaMed Working Group on Demersal Fishery Resources in the Adriatic Sea
date and place:

21-22/09/2010  - Fano - Italy

name:

The AdriaMed Working Group on Shared Demersal Fishery Resources in the Adriatic Sea
date and place:

23-25/06/2009  - Split - Croatia

name:

The AdriaMed Working Group on Shared Demersal Fishery Resources in the Adriatic Sea
date and place:

18-19/06/2008  - Kotor - Montenegro

name:

Working Group on Shared Demersal Fishery Resources in the Adriatic Sea
date and place:

15-16/9/2004  - Zagreb - Croatia

name:

On the job training on AdriaMed demersal trawl survey data collection and processing
date and place:

16-17/6/2004  - Kotor - Serbia-Montenegro

name:

GFCM-SAC Sub-Committee on Stock Assessment (SCSA) - Working Group on Demersal Fish
date and place:

6-7/5/2004  - Malaga - Spain

name:

Working Group on Shared Demersal Fishery Resources in the Adriatic Sea
date and place:

12-13/3/2004  - Fano - Italy

name:

On the job training on Identification of Population Units in the Adriatic Sea Shared Stocks by Genetic Structure Analysis
date and place:

3/2003  - Ravenna - Italy

name:

The AdriaMed Working Group on Shared Demersal Fishery Resources of the Adriatic Sea
date and place:

27/2/2003  - Rome - Italy

name:

On the job training on Identification of Population Units in the Adriatic Sea Shared Stocks by Genetic Structure Analysis
date and place:

11/2002  - Ravenna - Italy

name:

GFCM-SAC Sub-Committee on Stock Assessment (SCSA), Working Group on Demersal Fish
date and place:

20-22/3/2002  - Rome - Italy

name:

GFCM-SAC - Workshop on Stock Assessment and Production of Shared Demersal Fishery Resources in the Mediterranean
date and place:

18-19/3/2002  - Rome - Italy

name:

On the job training on Identification of Population Units in the Adriatic Sea Shared Stocks by Genetic Structure Analysis
date and place:

3/2002  - Piran - Slovenia

name:

Meeting of the AdriaMed Working Groups on Shared Fishery Resources
date and place:

17-18/10/2001  - Fano - Italy

name:

On the job training on Identification of Population Units in the Adriatic Sea Shared Stocks by Genetic Structure Analysis
date and place:

8/2001  - Ravenna - Italy

name:

Methodological Training course on Identification of Population Units in the Adriatic Sea Shared Stocks by Genetic Structure Analysis
date and place:

7-12/5/2001  - Ravenna - Italy

name:

On the job training on Identification of Population Units in the Adriatic Sea Shared Stocks by Genetic Structure Analysis
date and place:

4/2001  - Piran - Slovenia

name:

Joint Meeting of the AdriaMed Working Groups on Shared Demersal and Small Pelagic Fishery Resources
date and place:

13-15/2/2001  - Bari - Italy

name:

Working Group on the Definition of Priority Topics Related to Shared Demersal Fishery Resources of the Adriatic Sea 1st Meeting, (Adriatic Sea Shared Stocks)
date and place:

24-25/7/2000  - Fano - Italy

Publications:
punto elenco

Guarniero, I. - Garoia, F. - Di Placido, R. - Ramšak, A. - Mannini, P. - Tinti, F, 2003. Species-specific microsatellite loci for the European squid (Loligo vulgaris). Molecular Ecology Notes.  : 312 pp.

punto elenco

Ramšak, A. - Garoia, F. - Guarniero, I. - Mannini, P. - Tinti, F.,  . Novel polymorphic microsatellite markers for the common Pandora (Pagellus erythrinus). Molecular Ecology Notes.  : - pp.

punto elenco

Guarniero, I. - Ramšak, A. - Ungaro, N. - Vallisneri, M. - Tommasini, S. - Cavicchi, S. - Garoia, F. - Piccinetti, C. - Mannini, P. - Massa, F. - Tinti, F., 2002. Geographic structuring of central Mediterranean populations of common sole Solea vulgaris inferred by morphologica and genetic marker analyses: a scientific study for sustainable management of a demersal fishery resource. International Workshop on Stock Assessment and Production of Demersal Resources in the Mediterranean - in press.  : - pp.

punto elenco

Guarniero, I. - Garoia, F. - Cilli, E. - Landi, M. - Di Placido, R. - Cariani, A. - Ramšak, A. - Mannini, P. - Ungaro, N. - Piccinetti, C. - Tinti, F., 2004. Genetic stock structure analysis revealed single population units in the shared stocks of Adriatic demersal species. GCP/RER/010/ITA/OP-15 (AdriaMed Occasional Papers n°15): 6 pp.

punto elenco

FAO AdriaMed, 2000. Priority Topics Related to Shared Demersal Fishery Resources of the Adriatic Sea -Report of the First Meeting of the AdriaMed Working Group on Shared Demersal Resources-. GCP/RER/010/ITA/TD-02: 21 pp.

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