A fp7 Project: Management and Monitoring of Deep-sea Fisheries and Stocks wp2 – Template for Case Study Reports Case study 2 demersal deep-water mixed fishery Pascal Lorance, Ifremer, Nantes (coord.)

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500 tonnes of roundnose grenadier per year, number of vessels, total power (kw), number of days at sea and days fishing, fishing effort (fishing days* 1000 kw), landings of roundnose grenadier, landings of deep-water species (including blue ling) and all species (including deep-water).

Year	Number of vessels	Total power (kw)	Days at sea	Fishing days	Fishing effort	Landings of roundnose grenadier (t)	Landings of deep-water species (t)	landings of all species (t)
1989	3	4519	311	311	466	1830	4271	5735
1990	6	8935	561	561	835	4054	8442	12420
1991	1	1472	100	100	147	520	1341	1404
1992	3	4519	301	301	455	1636	3965	4847
1993	1	1575	108	108	170	521	1258	1549
1994	4	5991	513	513	769	2253	5092	6032
1995	1	1575	117	117	184	574	1283	1505
1996	1	1575	133	133	210	577	1249	1458
1997	-	-	-	-	-	-	-	-
1998	2	0	546	401	0	1597	2876	3205
1999	5	2944	1368	1022	661	3948	8604	9397
2000	5	7463	1282	929	1385	3013	7035	8203
2001	6	8935	1366	931	1383	3978	7168	8591
2002	5	7360	1198	860	1267	2854	6075	7286
2003	6	9210	1254	1062	1624	3763	6479	7773
2004	3	4794	752	494	790	1564	2990	3781
2005	1	1472	261	202	297	547	1156	1551
2006	-	-	-	-	-	-	-	-
2007	-	-	-	-	-	-	-	-
2008	3	4519	311	311	466	1830	4271	5735

Table. 4.1.3.2d. French fleet of fresh fish trawlers, vessels having landed more than 5 tonnes of black scabbardfish, number of vessels, total power (kw), number of days at sea and days fishing, fishing effort (fishing days* 1000 kw), landings of black scabbardfish, landings of deep-water species (including blue ling) and all species (including deep-water).

Year	Number of vessels	Total power (kw)	Days at sea	Fishing days	Fishing effort	Landings of black scabbardfish (t)	Landings of deep-water species (t)	landings of all species (t)
1989	39	48639	4361	4361	5473	2753	12850	47194
1990	46	56314	4980	4980	6186	7126	15942	49079
1991	61	59434	6086	6086	6580	9544	20839	54492
1992	60	64453	6834	6834	7516	9117	24580	48192
1993	53	53976	6903	6903	6948	8779	23023	49599
1994	54	52180	6514	6514	6175	8224	20242	41496
1995	52	50715	6304	6304	5622	8404	19951	36234
1996	44	43063	6460	6460	6051	7471	19539	35170
1997	39	38061	5896	5896	5605	7373	18474	30928
1998	40	35143	6147	6147	5493	5219	12479	24831
1999	45	36703	6512	5842	5045	8738	20499	27123
2000	47	41897	7716	6516	5949	10120	24407	34625
2001	46	44902	7351	6116	6355	8742	22347	31160
2002	38	38577	5859	4562	4851	8519	18942	24501
2003	31	31878	4924	3896	4163	6880	16028	21466
2004	29	30194	5235	4190	4483	7504	16564	22476
2005	28	30049	4679	3532	3766	4498	11912	18386
2006	26	23804	4260	3282	3181	3167	10103	17329
2007	19	18772	3008	2373	2488	2275	8482	13781
2008	16	17080	3247	2522	2705	1836	8502	17157

Table. 4.1.3.2e. French fleet of fresh fish trawlers, vessels having landed more than 100 tonnes of black scabbardfish per year, number of vessels, total power (kw), number of days at sea and days fishing, fishing effort (fishing days* 1000 kw), landings of black scabbardfish, landings of deep-water species (including blue ling) and all species (including deep-water).

Year	Number of vessels	Total power (kw)	Days at sea	Fishing days	Fishing effort	Landings of roundnose grenadier (t)	Landings of deep-water species (t)	landings of all species (t)
1989	-	-	-	-	-	-	-	-
1990	5	7463	461	461	687	1146	6348	8645
1991	8	11820	791	791	1160	1509	10033	15404
1992	16	23152	2219	2219	3185	3020	17150	22789
1993	15	21680	1844	1844	2648	2466	14285	22077
1994	9	13439	921	921	1377	1816	8552	11780
1995	14	17831	2011	2011	2432	2209	13006	17135
1996	13	17832	1805	1805	2404	2273	11309	15462
1997	9	12533	1175	1175	1613	1359	7537	9289
1998	-	-	-	-	-	-	-	-
1999	6	7360	1275	1054	1240	815	5611	7222
2000	12	13248	2834	2186	2374	2509	14518	17494
2001	13	18885	2995	2297	3319	3685	14133	17041
2002	18	23947	3791	2767	3669	3813	15793	19252
2003	13	15703	2739	2103	2567	2470	10738	13605
2004	10	11332	2375	1757	2000	2119	7830	10299
2005	9	14254	1913	1317	2043	2066	7704	10406
2006	3	5550	694	495	917	1311	3187	5519
2007	3	5550	620	468	865	1385	3484	5445
2008	5	9250	1213	853	1577	2000	5856	10260

Table. 4.1.3.2f. French fleet of fresh fish trawlers, vessels having landed more than 5 tonnes of deep-water sharks, number of vessels, total power (kw), number of days at sea and days fishing, fishing effort (fishing days* 1000 kw), landings of deep-water sharks, landings of deep-water species (including blue ling) and all species (including deep-water).

Year	Number of vessels	Total power (kw)	Days at sea	Fishing days	Fishing effort	Landings of roundnose grenadier (t)	Landings of deep-water species (t)	landings of all species (t)
1989	-	-	-	-	-	-	-	-
1990	6	8935	545	545	811	360	7096	10158
1991	10	14911	1091	1091	1623	1084	11285	18676
1992	40	46034	5285	5285	6070	2876	23691	37690
1993	44	46002	6253	6253	6332	3336	22701	43484
1994	48	46957	6143	6143	5899	3319	20059	39941
1995	49	48361	6008	6008	5398	3249	19743	34968
1996	44	43063	6460	6460	6051	3346	19539	35170
1997	40	38059	5977	5977	5617	2737	18468	30996
1998	36	31759	5907	5907	5295	1820	12297	23957
1999	41	34225	6252	5583	4887	2520	20255	26369
2000	45	38617	7602	6428	5825	3266	24006	33835
2001	47	46374	7358	6121	6362	3409	22395	31344
2002	38	39019	5920	4600	4911	1978	18987	24919
2003	29	29744	4843	3834	4112	1320	15864	21232
2004	27	28944	5099	4068	4408	1218	16460	22139
2005	23	26813	4045	3015	3430	866	11523	16866
2006	24	23362	4024	3119	3129	759	9935	16910
2007	18	18110	2999	2368	2484	847	8474	13755
2008	16	17025	3197	2485	2680	841	8492	17128

Table. 4.1.3.2g. French fleet of fresh fish trawlers, vessels having landed more than 100 tonnes of deep-water sharks per year, number of vessels, total power (kw), number of days at sea and days fishing, fishing effort (fishing days* 1000 kw), landings of deep-water sharks, landings of deep-water species (including blue ling) and all species (including deep-water).

Year	Number of vessels	Total power (kw)	Days at sea	Fishing days	Fishing effort	Landings of deep-water sharks (t)	Landings of deep-water species (t)	landings of all species (t)
1989	-	-	-	-	-	-	-	-
1990	-	-	-	-	-	-	-	-
1991	6	8935	561	561	835	1022	8442	12420
1992	8	11879	889	889	1319	1635	10690	11713
1993	14	20356	1727	1727	2489	2243	13627	20416
1994	9	13439	1010	1010	1509	1701	8823	11725
1995	11	15794	1457	1457	2056	2083	11755	14949
1996	13	18738	1754	1754	2505	1971	11560	15671
1997	7	9906	1023	1023	1426	1106	7359	9075
1998	5	6771	936	936	1266	578	4286	5910
1999	9	8832	1959	1615	1615	1287	9700	11699
2000	12	13248	2986	2321	2573	2178	15932	18379
2001	12	17855	2745	2055	3053	2272	14346	16799
2002	5	6918	1145	810	1116	614	5658	6766
2003	3	4794	610	431	677	466	3128	3692
2004	2	3322	420	359	589	356	2311	2756
2005	1	1850	265	165	305	132	1038	1260
2006	2	3700	464	307	568	216	1941	2679
2007	2	3700	424	312	577	232	2184	3234
2008	3	5172	560	388	681	406	2636	3283

Table. 4.1.3.2h. French fleet of fresh fish trawlers, vessels having landed more than 5 tonnes of deep-water species per year, number of vessels, total power (kw), number of days at sea and days fishing, fishing effort (fishing days* 1000 kw), landings of all deep-water species and all species (including deep-water).

Year	Number of vessels	Total power (kw)	Days at sea	Fishing days	Fishing effort	Landings of deep-water species (t)	landings of all species (t)
1985	69	0	61101	9217	0	14322	129837
1986	55	0	60320	7220	0	14251	109454
1987	58	0	66450	8379	0	13016	95572
1988	59	0	66378	8254	0	10563	87623
1989	51	63090	5147	5147	6338	12961	57930
1990	59	69365	5737	5737	7007	16117	57846
1991	70	66942	6565	6565	7057	20976	58485
1992	74	75909	7673	7673	8234	24801	52763
1993	67	67072	7697	7697	7783	23235	59950
1994	64	63540	7152	7152	6955	20376	51919
1995	59	60163	6806	6806	6330	20070	45551
1996	48	47625	6692	6692	6300	19599	37850
1997	50	49861	6551	6551	6341	18730	38916
1998	40	35143	6147	6147	5493	12479	24831
1999	49	42233	6653	5946	5100	20658	28166
2000	51	46023	8077	6802	6118	24491	35158
2001	51	51640	7627	6340	6498	22436	31885
2002	43	42328	6076	4735	4999	19089	25207
2003	37	35630	5405	4267	4402	16219	22458
2004	32	32108	5614	4480	4646	16659	23279
2005	32	31355	4970	3756	3854	11997	18759
2006	29	25276	4465	3437	3219	10191	17581
2007	25	21123	3522	2751	2606	8564	14405
2008	27	21143	5330	4225	3259	8752	22969

Table. 4.1.3.2i. French fleet of fresh fish trawlers, vessels having landed more than 500 tonnes of deep-water species per year, number of vessels, total power (kw), number of days at sea and days fishing, fishing effort (fishing days* 1000 kw), landings of all deep-water species (including blue ling) and all species (including deep-water).

Year	Number of vessels	Total power (kw)	Days at sea	Fishing days	Fishing effort	Landings of deep-water species (t)	landings of all species (t)
1985	7	0	7180	902	0	5724	21778
1986	6	0	6608	844	0	5889	18131
1987	4	0	3236	433	0	5213	10617
1988	5	0	3628	553	0	5355	10404
1989	8	11305	926	926	1281	6091	12979
1990	9	13439	942	942	1402	9040	14770
1991	18	26096	2326	2326	3358	15825	30664
1992	21	30512	2956	2956	4271	20788	29459
1993	20	29188	2704	2704	3925	17792	30488
1994	18	26391	2161	2161	3164	14045	23037
1995	12	17266	1543	1543	2183	12305	15758
1996	14	20210	1871	1871	2678	12119	16411
1997	14	19893	2080	2080	2945	11896	16008
1998	6	8243	1119	1119	1536	4816	6718
1999	14	14808	3030	2481	2592	14536	17777
2000	15	17752	3497	2717	3165	18329	21637
2001	14	20799	3195	2382	3535	16247	19165
2002	16	22329	3450	2475	3434	14984	18042
2003	14	19321	3068	2258	3081	13106	16186
2004	14	19596	3119	2379	3260	13439	16588
2005	9	13876	2113	1469	2246	8408	11158
2006	6	10722	1419	1004	1782	6284	9749
2007	6	10722	1211	878	1565	5997	8845
2008	6	10722	1333	948	1717	6472	11035

Based upon the same logbook data another time series of effort was calculated for year 2000 to 2009 (data incomplete at the time of processing) using the format and data requirements from the Official Data Call 2010 for Scientific Assessments and Evaluation of Fishing Effort Regimes requested in the DCF (see https://datacollection.jrc.ec.europa.eu/data-calls). The data format for this call is provided as appendix 2 to this report.

The effort estimated for this data call (Table 4.1.3j) show that fishing effort increased in the 1980s, as that time it was mainly target to blue ling (see table 4.1.3.2a, where the landings of blue ling almost equates the landings of all deep-water species until 1988). The fishing effort increased in the early 1990s and stayed high during the 1990s and then declined in the 2000s. The fishing effort either measured in kw multiplied by days at sea or gross tonnage multiplied by days at sea was divided by more than 3 from 2000 to 2008 (Table 4.1.3j and Figure 4.1.3a).
Table 4.1.3j. Fishing effort for deep-water species by year. Nominal effort is given in vessel power (thousand kw) times days at sea. GT.days.at.sea is given in gross tonnage times days at sea divided by 1000.

Year	Nominal effort	GT.days.at.sea
2000	7573	3732
2001	6237	3100
2002	4294	2183
2003	3435	1702
2004	3428	1697
2005	3031	1478
2006	2695	1314
2007	2484	1229
2008	2239	1119
2009(*)	1146	580

(*) data for 2009 incomplete

Figure 4.1.3a. Trends in fishing effort for deep-water species, French fleet of the demersal deep-water mixed fishery. Nominal effort in thousand kw times days at sea, GT days at sea in Thousand Tons x days at sea.

Data from other fleet

Landings and effort data from Irish and UK fleet are made available to ICES, landings and effort by rectangle have been available from several years and the distribution of landings and effort is shown in ICES reports (see e.g., ICES 2010b). Attention should be drawn to the distribution of fishing effort in some fleets that may not allow using landings data in stock dynamic models because they may be restricted to a few areas (see for example Figure 4.1.3b) and therefore only represent local variation on abundance.

Figure 4.1.3b. Geographical distribution of the landings of greater forkbeard from the basque Country flett in 2010.

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