Snow Crab fishery – figures and tables

Author

Affiliation

Snow Crab Unit DFO Science

Bedford Institute of Oceanography, Fisheries and Oceans Canada

Abstract

Details of 2024 snow crab fishery performance.

Keywords

snow crab trawl survey results, basic tables and figures

1 Snow Crab fishery – figures and tables

1.1 Fishing locations

1.1.0.1 Fishing locations recorded in logbooks

Snow Crab logbook locations.

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1.1.0.2 Fishing locations recorded in logbooks: a closer look

Snow Crab logbook locations in the past two years.

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1.2 Fishery performance

1.2.1 Fishery performance: Summary

1.2.1.1 CFA 20-22

Year	Licenses	TAC (t)	Landings (t)	Effort (1000 th)	CPUE (kg/th)
2014	78	783	781	6.9	114
2015	78	624	619	6.2	100
2016	78	286	290	2.7	109
2017	78	825	813	8.8	93
2018	78	784	742	12.2	61
2019	78	627	629	7.5	84
2020	78	847	836	7.7	108
2021	78	890	901	8.8	102
2022	78	979	975	8.6	113
2023	78	981	972	9.5	103
2024	78	938	934	11.4	82

1.2.1.2 CFA 23

Year	Licenses	TAC (t)	Landings (t)	Effort (1000 th)	CPUE (kg/th)
2014	NA	NA	6085	48.5	126
2015	NA	NA	6098	53.0	115
2016	62	5202	5201	45.9	113
2017	62	3640	3636	38.3	95
2018	62	3276	3280	28.1	117
2019	62	3604	3590	34.2	105
2020	62	4414	4206	35.2	120
2021	62	4414	4589	42.0	109
2022	62	3973	3957	30.7	129
2023	62	3973	3978	34.1	117
2024	62	3973	3962	34.7	114

1.2.1.3 CFA 24

Year	Licenses	TAC (t)	Landings (t)	Effort (1000 th)	CPUE (kg/th)
2014	NA	NA	5181	48.2	107
2015	NA	NA	5197	50.8	102
2016	53	4412	4405	41.5	106
2017	53	3090	3083	31.7	97
2018	53	2781	2784	23.3	119
2019	53	3059	3022	27.6	110
2020	53	3747	3744	29.0	129
2021	53	3747	3743	38.2	98
2022	53	3372	3366	25.9	130
2023	53	3372	3364	28.2	119
2024	53	3372	3351	42.0	80

1.2.1.4 CFA 4X

Year	Licenses	TAC (t)	Landings (t)	Effort (1000 th)	CPUE (kg/th)
2014	9	80	82	2.5	33
2015	9	150	143	4.4	32
2016	9	80	79	2.9	27
2017	9	110	55	4.4	13
2019	9	55	59	1.1	51
2020	9	80	76	1.6	49
2021	9	110	110	3.1	36
2022	9	125	38	2.3	17
2023	9	55	23	1.0	22
2024	9	20	5	0.1	39

Fishery performance statistics. Note: 4X years represent the starting year.

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1.2.2 Landings

1.2.2.1 Landings: annual

Landings (t) of Snow Crab on the SSE. For 4X, the year refers to the starting year of the season. Inset is a closeup view of the timeseries for N-ENS and 4X.

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1.2.2.2 Landings: close-up

Snow Crab landings weekly.

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1.2.2.3 Landings: spatial

Snow Crab landings from fisheries logbook data for previous and current years (tons per 10 km x 10 km grid).

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1.2.3 Effort

1.2.3.1 Effort: annual

Temporal variations in fishing effort.

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1.2.3.2 Effort: spatial

Snow Crab fishing effort from fisheries logbook data for previous and current years (x 10~^3 per 10 km x 10 km grid).

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1.2.4 Catch rates

1.2.4.1 Catch rates: annual

Temporal variations in crude catch rates of Snow Crab (kg/trap haul).

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1.2.4.2 Catch rates: close up

Snow Crab CPUE weekly.

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1.2.4.3 Catch rates: spatial

Snow Crab crude catch rates on the Scotian Shelf for previous and current years. Units are kg/trap haul per 10 km x 10 km grid.

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1.2.5 At-sea Observed Data

1.2.5.1 At-sea Observed Data: Summary

Snow Crab at-sea-observer coverage.

1.2.5.2 At-sea Observed fishing locations

Snow Crab At-sea-observer locations.

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1.2.5.3 At-sea-observed effort: no. trips

Number of at-sea observed events.

Year	CFA 20-22	CFA 23	CFA 24	CFA 4X	Total
2004	30	60	62	15	152
2005	25	50	57	8	132
2006	20	41	35	7	96
2007	10	39	35	19	84
2008	27	54	55	12	136
2009	29	80	63	12	172
2010	19	65	48	12	132
2011	10	52	51	13	113
2012	13	50	46	7	109
2013	10	19	22	10	51
2014	11	20	22	5	53
2015	9	23	29	8	61
2016	5	28	22	3	55
2017	12	19	15	6	46
2018	18	12	14	0	44
2019	12	12	11	2	35
2020	1	0	3	1	4
2021	0	3	4	0	7
2022	1	3	3	1	7
2023	1	5	6	0	12
2024	6	6	12	0	24

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1.2.5.4 At-sea-observed effort: trap hauls – todo

Number of at-sea observed events.

Year	CFA 20-22	CFA 23	CFA 24	CFA 4X	Total
2004	140	600	835	112	1575
2005	143	427	576	95	1146
2006	108	419	393	67	920
2007	47	425	365	189	837
2008	151	639	569	110	1359
2009	160	986	742	96	1888
2010	103	977	812	137	1892
2011	45	574	639	140	1258
2012	45	738	706	89	1489
2013	40	239	277	110	556
2014	46	256	264	58	566
2015	41	284	354	73	679
2016	23	352	365	33	740
2017	74	315	243	37	632
2018	95	106	184	0	385
2019	55	161	126	16	342
2020	5	0	46	12	51
2021	0	65	77	0	142
2022	4	42	43	6	89
2023	3	49	85	0	137
2024	12	44	150	0	206

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1.2.5.5 At-sea-observed number of crab

Number of at-sea observed crab.

Year	CFA 20-22	CFA 23	CFA 24	CFA 4X	Total
2004	4771	19849	29062	2820	53682
2005	5596	16984	23364	3422	45944
2006	4039	16367	15521	2493	35927
2007	1761	15038	14495	5963	31294
2008	6147	25545	22916	3622	54608
2009	6334	38412	29618	3531	74364
2010	3970	38377	32546	5242	74893
2011	1793	22552	26775	4562	51120
2012	1794	29171	27971	2196	58936
2013	1600	9100	11113	3111	21813
2014	1790	10540	10543	2016	22873
2015	1640	11268	13936	2598	26844
2016	906	13802	14657	1114	29365
2017	2960	12670	9714	1094	25344
2018	3807	4263	7432	0	15502
2019	2189	6374	5010	544	13573
2020	200	0	1840	480	2040
2021	0	2640	3080	0	5720
2022	143	1634	1716	55	3493
2023	91	2033	3364	0	5488
2024	413	1752	5738	0	7903

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1.2.5.6 At-sea-observed weight of crab

Total weight of at-sea observed crab (kg).

Year	CFA 20-22	CFA 23	CFA 24	CFA 4X	Total
2004	2507	11185	15337	1263.87	29029
2005	2945	8991	12507	1509.92	24443
2006	2073	9317	8607	1365.80	19997
2007	710	8636	8289	2746.49	17635
2008	2431	13677	12937	1559.30	29045
2009	2754	20398	16166	1664.02	39318
2010	1756	22836	18551	2653.45	43143
2011	913	13336	14717	2378.27	28966
2012	985	17218	15106	1093.06	33309
2013	896	5206	6027	1177.02	12129
2014	1077	5843	5587	829.58	12507
2015	1021	6359	7391	1170.79	14771
2016	536	7790	7839	576.21	16165
2017	1455	7926	4979	510.87	14360
2018	1646	2369	3766	0.00	7781
2019	1060	3474	2529	281.62	7063
2020	72	0	1067	248.24	1139
2021	0	1317	1450	0.00	2767
2022	81	886	845	28.19	1812
2023	56	1125	1847	0.00	3028
2024	205	765	2374	0.00	3344

1.2.5.7 Carapace condition from observed data: < 95mm CW

1.2.5.8 CFA 20-22

Year	CC1	CC2	CC3	CC4	CC5	Total
2004	1.4	4.0	71.6	22.5	0.6	4752
2005	4.8	7.3	61.7	25.0	1.3	5596
2006	4.6	12.5	66.5	14.3	2.1	4039
2007	43.8	13.7	34.7	6.6	1.1	1761
2008	22.4	7.5	62.5	6.8	0.7	6146
2009	0.5	5.4	89.7	4.4	0.0	6331
2010	1.8	2.2	92.0	3.7	0.3	3954
2011	0.0	2.6	94.3	3.0	0.1	1641
2012	0.0	2.9	95.4	1.7	0.0	1793
2013	0.0	5.9	75.5	17.2	1.4	1554
2014	0.1	18.7	72.1	8.9	0.3	1790
2015	0.1	2.9	88.7	7.9	0.4	1640
2016	0.0	1.8	83.6	14.5	0.1	905
2017	0.1	11.6	51.2	36.5	0.6	2959
2018	0.1	27.6	51.9	20.1	0.3	3807
2019	0.0	3.0	74.3	22.7	0.0	2188
2020	2.5	30.0	46.0	18.5	3.0	200
2022	0.0	14.0	53.1	24.5	8.4	143
2023	0.0	0.0	70.3	29.7	0.0	91
2024	0.0	0.0	81.8	18.2	0.0	413

1.2.5.9 CFA 23

Year	CC1	CC2	CC3	CC4	CC5	Total
2004	1.5	4.6	69.3	23.7	1.0	19821
2005	4.4	10.6	73.2	11.0	0.7	16980
2006	5.6	17.4	68.7	8.0	0.3	16257
2007	10.8	18.0	51.4	17.5	2.3	15030
2008	9.6	8.6	69.4	11.7	0.7	25539
2009	7.5	9.3	66.0	15.0	2.2	38395
2010	1.7	11.0	80.3	6.4	0.5	38223
2011	0.3	9.1	85.9	4.6	0.1	22550
2012	0.1	8.4	87.0	4.4	0.1	29081
2013	0.0	3.3	93.8	2.9	0.0	9094
2014	0.6	18.7	74.6	6.1	0.1	10537
2015	0.7	11.9	80.5	6.6	0.4	11267
2016	0.0	2.7	75.6	20.9	0.8	13795
2017	0.0	4.4	82.6	12.7	0.3	12669
2018	0.1	2.1	86.4	10.7	0.7	4260
2019	0.0	4.8	56.6	38.3	0.3	6374
2021	0.0	14.2	77.8	7.8	0.2	2640
2022	0.3	9.1	64.8	23.0	2.8	1633
2023	0.0	10.6	73.1	15.6	0.6	2033
2024	7.0	15.1	68.8	9.1	0.0	1752

1.2.5.10 CFA 24

Year	CC1	CC2	CC3	CC4	CC5	Total
2004	2.5	3.5	78.1	14.9	1.0	29037
2005	6.0	12.8	62.5	17.8	1.0	23191
2006	7.5	18.9	66.9	6.4	0.4	15478
2007	7.2	14.4	63.6	13.7	1.2	14494
2008	10.4	9.4	66.4	12.5	1.3	22915
2009	9.9	8.3	61.1	18.3	2.4	29534
2010	3.3	9.2	77.5	8.3	1.6	32532
2011	0.7	9.9	84.2	5.0	0.1	26765
2012	0.5	12.1	83.0	4.3	0.1	27879
2013	0.4	3.4	93.5	2.7	0.0	11113
2014	1.8	12.6	82.4	3.0	0.1	10503
2015	0.8	6.6	85.3	7.0	0.2	13894
2016	0.0	4.5	82.6	12.6	0.3	14653
2017	0.0	8.7	71.0	20.0	0.3	9708
2018	0.0	8.3	85.3	6.3	0.1	7429
2019	0.0	6.9	71.7	21.3	0.1	5007
2020	0.1	44.8	51.4	3.8	0.0	1840
2021	1.4	12.3	74.1	11.8	0.5	3080
2022	0.0	6.7	56.3	20.0	17.0	1714
2023	0.9	11.7	72.4	12.9	2.1	3364
2024	1.6	11.5	68.9	17.1	0.9	5737

1.2.5.11 CFA 4X

Year	CC1	CC2	CC3	CC4	CC5	Total
2004	0.0	3.0	83.9	12.9	0.1	2819
2005	0.0	10.5	73.6	15.8	0.1	3422
2006	0.0	0.6	95.8	3.4	0.1	2493
2007	0.4	0.2	75.9	23.1	0.4	5959
2008	1.0	0.3	50.9	47.7	0.1	3585
2009	0.0	0.4	97.9	1.7	0.0	3530
2010	0.2	1.4	53.1	45.1	0.2	5241
2011	0.0	0.5	91.1	8.1	0.2	4562
2012	0.0	1.0	82.9	15.1	1.0	2196
2013	0.0	2.8	81.2	15.7	0.2	3109
2014	0.4	13.3	69.2	17.0	0.0	2016
2015	0.7	8.4	61.4	29.5	0.1	2598
2016	0.4	10.2	55.9	33.0	0.4	1114
2017	0.9	16.5	67.3	14.1	1.2	1093
2019	0.0	0.0	85.8	14.2	0.0	544
2020	0.0	0.2	89.6	10.2	0.0	480
2022	0.0	0.0	80.0	20.0	0.0	55

Fishery performance statistics: Distribution of at sea observations of males less than 95 mm CW by year and shell condition.

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1.2.5.12 Carapace condition from observed data: >= 95mm CW

1.2.5.13 CFA 20-22

Year	CC1	CC2	CC3	CC4	CC5	Total
2004	1.4	4.0	71.6	22.5	0.6	4752
2005	4.8	7.3	61.7	25.0	1.3	5596
2006	4.6	12.5	66.5	14.3	2.1	4039
2007	43.8	13.7	34.7	6.6	1.1	1761
2008	22.4	7.5	62.5	6.8	0.7	6146
2009	0.5	5.4	89.7	4.4	0.0	6331
2010	1.8	2.2	92.0	3.7	0.3	3954
2011	0.0	2.6	94.3	3.0	0.1	1641
2012	0.0	2.9	95.4	1.7	0.0	1793
2013	0.0	5.9	75.5	17.2	1.4	1554
2014	0.1	18.7	72.1	8.9	0.3	1790
2015	0.1	2.9	88.7	7.9	0.4	1640
2016	0.0	1.8	83.6	14.5	0.1	905
2017	0.1	11.6	51.2	36.5	0.6	2959
2018	0.1	27.6	51.9	20.1	0.3	3807
2019	0.0	3.0	74.3	22.7	0.0	2188
2020	2.5	30.0	46.0	18.5	3.0	200
2022	0.0	14.0	53.1	24.5	8.4	143
2023	0.0	0.0	70.3	29.7	0.0	91
2024	0.0	0.0	81.8	18.2	0.0	413

1.2.5.14 CFA 23

Year	CC1	CC2	CC3	CC4	CC5	Total
2004	1.5	4.6	69.3	23.7	1.0	19821
2005	4.4	10.6	73.2	11.0	0.7	16980
2006	5.6	17.4	68.7	8.0	0.3	16257
2007	10.8	18.0	51.4	17.5	2.3	15030
2008	9.6	8.6	69.4	11.7	0.7	25539
2009	7.5	9.3	66.0	15.0	2.2	38395
2010	1.7	11.0	80.3	6.4	0.5	38223
2011	0.3	9.1	85.9	4.6	0.1	22550
2012	0.1	8.4	87.0	4.4	0.1	29081
2013	0.0	3.3	93.8	2.9	0.0	9094
2014	0.6	18.7	74.6	6.1	0.1	10537
2015	0.7	11.9	80.5	6.6	0.4	11267
2016	0.0	2.7	75.6	20.9	0.8	13795
2017	0.0	4.4	82.6	12.7	0.3	12669
2018	0.1	2.1	86.4	10.7	0.7	4260
2019	0.0	4.8	56.6	38.3	0.3	6374
2021	0.0	14.2	77.8	7.8	0.2	2640
2022	0.3	9.1	64.8	23.0	2.8	1633
2023	0.0	10.6	73.1	15.6	0.6	2033
2024	7.0	15.1	68.8	9.1	0.0	1752

1.2.5.15 CFA 24

Year	CC1	CC2	CC3	CC4	CC5	Total
2004	2.5	3.5	78.1	14.9	1.0	29037
2005	6.0	12.8	62.5	17.8	1.0	23191
2006	7.5	18.9	66.9	6.4	0.4	15478
2007	7.2	14.4	63.6	13.7	1.2	14494
2008	10.4	9.4	66.4	12.5	1.3	22915
2009	9.9	8.3	61.1	18.3	2.4	29534
2010	3.3	9.2	77.5	8.3	1.6	32532
2011	0.7	9.9	84.2	5.0	0.1	26765
2012	0.5	12.1	83.0	4.3	0.1	27879
2013	0.4	3.4	93.5	2.7	0.0	11113
2014	1.8	12.6	82.4	3.0	0.1	10503
2015	0.8	6.6	85.3	7.0	0.2	13894
2016	0.0	4.5	82.6	12.6	0.3	14653
2017	0.0	8.7	71.0	20.0	0.3	9708
2018	0.0	8.3	85.3	6.3	0.1	7429
2019	0.0	6.9	71.7	21.3	0.1	5007
2020	0.1	44.8	51.4	3.8	0.0	1840
2021	1.4	12.3	74.1	11.8	0.5	3080
2022	0.0	6.7	56.3	20.0	17.0	1714
2023	0.9	11.7	72.4	12.9	2.1	3364
2024	1.6	11.5	68.9	17.1	0.9	5737

1.2.5.16 CFA 4X

Year	CC1	CC2	CC3	CC4	CC5	Total
2004	0.0	3.0	83.9	12.9	0.1	2819
2005	0.0	10.5	73.6	15.8	0.1	3422
2006	0.0	0.6	95.8	3.4	0.1	2493
2007	0.4	0.2	75.9	23.1	0.4	5959
2008	1.0	0.3	50.9	47.7	0.1	3585
2009	0.0	0.4	97.9	1.7	0.0	3530
2010	0.2	1.4	53.1	45.1	0.2	5241
2011	0.0	0.5	91.1	8.1	0.2	4562
2012	0.0	1.0	82.9	15.1	1.0	2196
2013	0.0	2.8	81.2	15.7	0.2	3109
2014	0.4	13.3	69.2	17.0	0.0	2016
2015	0.7	8.4	61.4	29.5	0.1	2598
2016	0.4	10.2	55.9	33.0	0.4	1114
2017	0.9	16.5	67.3	14.1	1.2	1093
2019	0.0	0.0	85.8	14.2	0.0	544
2020	0.0	0.2	89.6	10.2	0.0	480
2022	0.0	0.0	80.0	20.0	0.0	55

Fishery performance statistics: Distribution of at sea observations of males greater than 95 mm CW by year and shell condition.

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1.2.5.17 Soft-shell

There are two possible definitions:

• durometer < 68 (D)
• carapace conditions 1 and 2 (CC)

1.2.5.18 CFA 20-22

Year	Soft (D)	Total (D)	Soft (CC)	Total (CC)
2004	2.5	3525	6.7	3724
2005	18.1	4476	14.1	4510
2006	4.4	3270	13.6	3285
2007	38.9	1148	54.1	1151
2008	29.9	3796	32.5	3813
2009	3.3	4680	3.5	4852
2010	1.9	2972	2.9	3001
2011	1.3	1527	1.9	1528
2012	9.2	1680	2.9	1684
2013	1.7	1393	2.7	1405
2014	2.6	1719	18.5	1731
2015	0.5	1375	3.0	1594
2016	0.2	859	1.3	871
2017	4.0	2320	9.4	2338
2018	27.8	2557	34.6	2731
2019	3.4	1874	2.5	1884
2020	5.0	119	27.7	119

1.2.5.19 CFA 23

Year	Soft (D)	Total (D)	Soft (CC)	Total (CC)
2004	1.6	14101	6.2	15544
2005	4.3	14352	13.9	15491
2006	5.6	14431	21.5	14833
2007	11.0	13592	28.2	13693
2008	10.9	21227	17.9	22151
2009	11.7	32390	14.2	33198
2010	7.5	32744	12.2	35560
2011	7.1	20309	8.6	21134
2012	5.5	26104	8.5	27343
2013	1.9	8471	2.5	8500
2014	1.7	9413	19.3	9945
2015	2.2	10500	12.1	10526
2016	2.7	11490	2.7	12999
2017	1.2	11413	4.3	12269
2018	2.0	3824	2.2	3977
2019	1.6	5882	4.2	5891
2021	8.6	2381	12.2	2388
2022	2.5	1528	7.5	1530
2023	2.4	1385	8.8	1392
2024	11.0	1168	27.1	1181

1.2.5.20 CFA 24

Year	Soft (D)	Total (D)	Soft (CC)	Total (CC)
2004	3.3	21214	6.6	22618
2005	6.8	19218	18.1	21092
2006	7.7	13713	25.8	14366
2007	7.4	13443	20.8	13460
2008	13.7	20606	19.2	21572
2009	18.2	26665	17.6	27071
2010	9.3	28541	12.3	30456
2011	7.9	23514	10.8	24474
2012	9.5	24165	12.5	25250
2013	2.0	9708	3.6	10139
2014	3.9	8790	14.0	9542
2015	4.3	12684	7.3	12728
2016	3.1	12499	4.3	13520
2017	1.8	8759	8.8	8817
2018	3.1	6511	8.1	6554
2019	2.6	4403	5.8	4414
2020	7.9	1749	45.2	1749
2021	6.4	2647	10.2	2654
2022	6.2	1433	5.3	1440
2023	2.6	1366	23.2	1367
2024	4.3	4329	13.7	4361

1.2.5.21 CFA 4X

Year	Soft (D)	Total (D)	Soft (CC)	Total (CC)
2004	0.4	1917	2.1	1926
2005	0.0	2665	11.8	2672
2006	0.1	2203	0.5	2215
2007	1.2	4362	0.3	4399
2008	1.1	2460	0.5	2515
2009	2.3	2791	0.5	2799
2010	1.6	4432	1.3	4545
2011	0.4	4177	0.2	4193
2012	0.7	1900	0.8	1909
2013	2.0	1422	4.4	1866
2014	4.5	1552	14.8	1557
2015	3.5	2003	10.8	2013
2016	2.8	863	11.5	968
2017	5.6	447	15.6	821
2020	0.9	455	0.2	456

1.2.5.22 Soft shell locations

Snow Crab Map of observed soft shell locations.

~

1.2.5.23 At-sea-observed size

Snow Crab Map of observed size.

~

1.2.5.24 Size frequency distributions by carapace condition

1.2.5.25 CFA 20-22

1.2.5.26 CFA 23

1.2.5.27 CFA 24

1.2.5.28 CFA 4X

~

1.2.5.29 Total discards of snow crab, by weight

1.2.5.30 CFA 20-22

Year	Discard mean	Discard SD
1999	35.2	16.4
2000	35.8	16.7
2001	22.5	10.8
2002	13.9	6.2
2003	15.2	8.0
2004	16.7	15.2
2005	32.0	19.0
2006	22.5	15.1
2007	52.9	27.4
2008	43.4	24.2
2009	19.9	16.4
2010	21.2	15.1
2011	4.6	4.6
2012	15.5	23.5
2013	5.9	4.0
2014	11.8	27.6
2015	5.0	3.0
2016	6.8	5.5
2017	20.9	12.6
2018	33.8	15.9
2019	17.6	17.2
2020	28.6	3.8
2022	10.6	1.6
2023	13.8	6.9
2024	20.6	10.3

1.2.5.31 CFA 23

Year	Discard mean	Discard SD
1999	20.3	16.8
2000	29.3	19.3
2001	22.8	22.1
2002	19.4	18.5
2003	11.6	12.3
2004	13.3	18.5
2005	15.7	21.9
2006	16.8	19.0
2007	22.6	22.5
2008	23.8	26.1
2009	22.8	19.2
2010	17.7	24.5
2011	17.2	24.8
2012	13.4	11.5
2013	8.7	7.6
2014	17.4	31.4
2015	11.4	12.0
2016	13.3	22.0
2017	7.7	5.4
2018	8.7	5.8
2019	13.2	15.7
2021	15.7	7.1
2022	4.1	3.3
2023	12.4	10.9
2024	31.2	12.4

1.2.5.32 CFA 24

Year	Discard mean	Discard SD
1999	48.4	19.8
2000	23.3	16.3
2001	25.3	22.1
2002	21.0	18.3
2003	26.1	27.8
2004	27.1	33.3
2005	23.1	28.9
2006	22.0	22.2
2007	20.8	17.5
2008	15.0	13.8
2009	20.7	21.3
2010	18.3	25.4
2011	11.1	8.2
2012	24.2	18.0
2013	11.8	5.8
2014	18.9	24.9
2015	19.3	26.0
2016	13.8	19.9
2017	11.3	8.5
2018	19.0	24.4
2019	14.7	11.3
2020	21.3	6.1
2021	10.1	6.9
2022	7.9	5.9
2023	8.8	4.5
2024	25.2	13.4

1.2.5.33 CFA 4X

Year	Discard mean	Discard SD
2000	23.5	21.4
2001	28.2	24.8
2002	70.2	12.2
2003	23.3	21.5
2004	19.1	13.9
2005	13.1	8.5
2006	7.5	5.2
2007	24.8	12.8
2008	20.6	14.3
2009	20.0	14.6
2010	11.2	10.3
2011	9.9	11.1
2012	16.7	16.8
2013	31.3	20.0
2014	18.0	11.8
2015	17.1	13.9
2016	9.3	2.7
2017	15.8	12.7
2019	1.5	0.5
2020	6.5	1.5
2022	5.9	1.9

At sea observed rate of snow crab discards relative to total catch (discard + kept), all Maritimes.

1.2.5.34 Bycatch of non-target species

General approach: estimate bycatch from at sea observed data and project onto marfis data

1.2.5.34.1 Bycatch of non-target species: estimates based on fisheries effort

Bycatch comes from at-sea-observed effort and catch. Rescale these naively to total snow crab fishery effort.

1.2.5.35 CFA 20-22

species	2020	2021	2022	2023	2024	Average/Moyen
Cod Atlantic	.	.	576	.	.	34
Witch Flounder	.	.	.	.	.	1
Greenland Cod	.	.	.	.	.	1
Atlantic Rock Crab	.	.	288	.	.	13
Toad Crab Unident	.	.	.	.	.	18
Hyas Coarctatus	.	.	.	.	.	2
Northern Stone Crab	.	.	.	.	.	28
Toad Crab	.	.	.	.	.	21
Asterias Rubens	.	.	.	.	.	2
Mud Star	.	.	.	.	.	4
Sand Dollars	.	.	.	.	.	3
Jellyfishes	.	.	.	.	.	18
Total	.	.	863	.	.	147
Landings/Débarquements (kg)	792363	857719	851383	877954	906298	723303
Effort (trap hauls/casiers levés)	7039	7770	7195	7757	10422	9136
At sea observed catch /Débarquements observés en mer (kg)	5584	.	2638	2238	11764	47257
At sea observed effort (trap hauls) /Efforts observés en mer (casiers levés)	25	.	24	30	182	401

1.2.5.36 CFA 23

species	2020	2021	2022	2023	2024	Average/Moyen
Cod Atlantic	.	.	.	858	854	149
Haddock	.	.	.	264	.	12
White Hake	.	.	.	.	.	5
Pollock	.	.	.	66	.	3
Redfish Unseparated	.	.	.	.	163	37
American Plaice	.	.	.	.	81	7
Witch Flounder	.	.	.	.	81	4
Winter Flounder	.	.	.	.	.	2
Flounderentified	.	.	.	.	.	3
Striped Atlantic Wolffish	.	.	218	.	325	79
Spotted Wolffish	.	.	.	.	.	79
Northern Wolffish	.	.	.	198	.	13
Brill Windowpane	.	.	.	.	.	2
Thorny Skate	.	.	.	.	.	42
Winter Skate	.	.	.	.	.	8
Longhorn Sculpin	.	.	.	.	.	4
Sculpins	.	.	.	.	.	2
Sea Raven	.	.	.	.	.	8
Eelpouts	.	.	.	.	.	1
Pandalus Borealis	.	.	.	.	.	2
Jonah Crab	.	.	.	.	.	5
Toad Crab Unident	.	.	.	.	.	14
Northern Stone Crab	.	.	.	.	41	200
Spiny Crab	.	.	.	.	.	379
Toad Crab	.	.	.	.	244	40
Paguroidea	.	.	.	.	.	26
Whelks	.	.	.	.	163	9
Sea Scallop	.	.	.	.	.	1
Asteroidea	.	.	.	.	.	2
Purple Sunstar	.	.	.	.	.	1
Brittle Star	.	.	.	.	.	3
Basket Stars	.	.	.	.	.	7
Sea Urchins	.	.	.	.	81	5
Sand Dollars	.	.	.	.	81	4
Holothuroidea	.	.	.	.	41	60
Aglantha Digitale	.	.	.	.	41	2
Total	.	.	218	1386	2196	1219
Landings/Débarquements (kg)	4059411	4461625	3832871	3805430	3747859	4517548
Effort (trap hauls/casiers levés)	33158	39524	28737	32999	32123	39778
At sea observed catch /Débarquements observés en mer (kg)	.	45540	56451	73093	58104	350201
At sea observed effort (trap hauls) /Efforts observés en mer (casiers levés)	.	330	359	454	476	2524

1.2.5.37 CFA 24

species	2020	2021	2022	2023	2024	Average/Moyen
Cod Atlantic	.	.	.	141	.	59
Redfish Unseparated	.	590	.	176	176	51
Halibut Atlantic	.	.	.	.	.	164
Spotted Wolffish	.	.	.	.	.	10
Wolffish Unident	.	.	.	.	.	4
Sea Raven	.	.	.	70	.	3
Pandalus Borealis	.	.	.	.	.	1
Jonah Crab	69	.	.	.	2299	401
Atlantic Rock Crab	.	.	.	.	527	26
Toad Crab Unident	.	.	.	.	.	184
Northern Stone Crab	69	.	.	.	2555	248
Spiny Crab	.	.	.	.	308	14
Toad Crab	.	.	.	.	88	8
American Lobster	.	.	.	.	.	228
Paguroidea	.	.	.	.	44	2
Whelks	.	.	.	.	53	3
Asteroidea	.	.	.	.	.	5
Spiny Sunstar	69	.	.	.	.	3
Sea Urchins	.	.	.	.	.	1
Holothuroidea	.	295	110	.	577	67
Total	206	885	110	387	6627	1482
Landings/Débarquements (kg)	3728642	3705603	3349628	3312668	3306334	3922206
Effort (trap hauls/casiers levés)	31545	37857	28606	33100	42834	39435
At sea observed catch /Débarquements observés en mer (kg)	46935	43833	38014	54897	109627	303909
At sea observed effort (trap hauls) /Efforts observés en mer (casiers levés)	367	407	281	307	1054	2361

1.2.5.38 CFA 4X

species	2020	2021	2022	2023	2024	Average/Moyen
Cod Atlantic	.	.	.	.	.	3
Redfish Unseparated	.	.	.	.	.	3
Thorny Skate	.	.	.	.	.	4
Sea Raven	.	.	.	.	.	32
Lumpfish	.	.	.	.	.	2
Hookear Sculpin Atl	.	.	.	.	.	1
Jonah Crab	.	.	.	.	.	202
Atlantic Rock Crab	.	.	.	.	.	4
Toad Crab Unident	.	.	.	.	.	161
Northern Stone Crab	.	.	.	.	.	708
Spiny Crab	.	.	.	.	.	61
Toad Crab	.	.	.	.	.	7
Red Deepsea Crab	.	.	.	.	.	215
American Lobster	.	.	.	.	.	73
Total	.	.	.	.	.	1475
Landings/Débarquements (kg)	73558	109324	38373	22565	4205	169691
Effort (trap hauls/casiers levés)	1416	3420	2269	1061	110	9194
At sea observed catch /Débarquements observés en mer (kg)	2653	.	378	.	.	13223
At sea observed effort (trap hauls) /Efforts observés en mer (casiers levés)	62	.	.	.	.	387

Average by-catch discards (kg) using effort. Dots indicated low values. Where species exist in a list but there is no data, this indicates some historical bycatch. The average is only for the years shown.

1.2.5.38.1 Bycatch of non-target species: estimates based on fisheries catch

Bycatch comes from at-sea-observed effort and catch. Rescale these naively to total snow crab fishery catch.

1.2.5.39 CFA 20-22

species	2020	2021	2022	2023	2024	Average/Moyen
Cod Atlantic	.	.	715	.	.	41
Witch Flounder	.	.	.	.	.	2
Flounderentified	.	.	.	.	.	4
Greenland Cod	.	.	.	.	.	3
Atlantic Rock Crab	.	.	379	.	.	17
Toad Crab Unident	.	.	.	.	.	29
Hyas Coarctatus	.	.	.	.	.	3
Northern Stone Crab	.	.	.	.	.	57
Toad Crab	.	.	.	.	.	32
Whelks	.	.	.	.	.	1
Clams	.	.	.	.	.	1
Asteroidea	.	.	.	.	.	1
Asterias Rubens	.	.	.	.	.	2
Mud Star	.	.	.	.	.	4
Sand Dollars	.	.	.	.	.	3
Jellyfishes	.	.	.	.	.	28
Total	.	.	1093	.	.	227
Landings/Débarquements (kg)	792363	857719	851383	877954	906298	723303
Effort (trap hauls/casiers levés)	7039	7770	7195	7757	10422	9136
At sea observed catch /Débarquements observés en mer (kg)	5584	.	2638	2238	11764	47257
At sea observed effort (trap hauls) /Efforts observés en mer (casiers levés)	25	.	24	30	182	401

1.2.5.40 CFA 23

species	2020	2021	2022	2023	2024	Average/Moyen
Cod Atlantic	.	.	.	1864	1515	939
Haddock	.	.	.	254	.	12
White Hake	.	.	.	.	.	22
Pollock	.	.	.	71	.	3
Redfish Unseparated	.	.	.	.	188	41
Escolar	.	.	.	.	.	.
Turbot Greenland Halibut	.	.	.	.	.	1
American Plaice	.	.	.	.	161	298
Witch Flounder	.	.	.	.	102	5
Yellowtail Flounder	.	.	.	.	.	1
Winter Flounder	.	.	.	.	.	2
Flounderentified	.	.	.	.	.	2
Striped Atlantic Wolffish	.	.	249	.	454	140
Spotted Wolffish	.	.	.	.	.	127
Northern Wolffish	.	.	.	505	.	26
Wolffish Unident	.	.	.	.	.	.
Brill Windowpane	.	.	.	.	.	2
Thorny Skate	.	.	.	.	.	1162
Smooth Skate	.	.	.	.	.	1
Winter Skate	.	.	.	.	.	.
Skates	.	.	.	.	.	1
Northern Hagfish	.	.	.	.	.	.
Longhorn Sculpin	.	.	.	.	.	3
Sculpins	.	.	.	.	.	55
Fourhorn Sculpin	.	.	.	.	.	.
Sea Raven	.	.	.	.	.	13
Eelpouts	.	.	.	.	.	2
Ocean Pout	.	.	.	.	.	1
Eelpouts	.	.	.	.	.	2
American Barrelfish	.	.	.	.	.	.
Rhodichthys	.	.	.	.	.	7
Pandalus Borealis	.	.	.	.	.	2
Jonah Crab	.	.	.	.	.	.
Toad Crab Unident	.	.	.	.	.	792
Northern Stone Crab	.	.	.	.	102	6850
Spiny Crab	.	.	.	.	.	167
Toad Crab	.	.	.	.	690	294
Hermit Crabs	.	.	.	.	.	.
Paguroidea	.	.	.	.	.	1477
Whelks	.	.	.	.	294	16
Sea Scallop	.	.	.	.	.	12
Iceland Scallop	.	.	.	.	.	.
Asteroidea	.	.	.	.	.	2
Purple Sunstar	.	.	.	.	.	1
Brittle Star	.	.	.	.	.	333
Basket Stars	.	.	.	.	.	168
Sea Urchins	.	.	.	.	147	8
Sand Dollars	.	.	.	.	147	7
Holothuroidea	.	.	.	.	103	65
Aglantha Digitale	.	.	.	.	43	2
Total	.	.	249	2694	3945	13064
Landings/Débarquements (kg)	4059411	4461625	3832871	3805430	3747859	4517548
Effort (trap hauls/casiers levés)	33158	39524	28737	32999	32123	39778
At sea observed catch /Débarquements observés en mer (kg)	.	45540	56451	73093	58104	350201
At sea observed effort (trap hauls) /Efforts observés en mer (casiers levés)	.	330	359	454	476	2524

1.2.5.41 CFA 24

species	2020	2021	2022	2023	2024	Average/Moyen
Cod Atlantic	.	.	.	241	.	78
Redfish Unseparated	.	1347	.	349	204	91
Halibut Atlantic	.	.	.	.	.	826
American Plaice	.	.	.	.	.	.
Witch Flounder	.	.	.	.	.	1
Spotted Wolffish	.	.	.	.	.	20
Northern Wolffish	.	.	.	.	.	1
Wolffish Unident	.	.	.	.	.	7
Thorny Skate	.	.	.	.	.	.
Longhorn Sculpin	.	.	.	.	.	.
Sea Raven	.	.	.	150	.	7
Roundnose Grenadier	.	.	.	.	.	1
Pandalus Borealis	.	.	.	.	.	1
Jonah Crab	91	.	.	.	374926	21269
Atlantic Rock Crab	.	.	.	.	931	45
Spider Crab	.	.	.	.	.	.
Toad Crab Unident	.	.	.	.	.	365
Northern Stone Crab	77	.	.	.	251020	13288
Spiny Crab	.	.	.	.	260	13
Toad Crab	.	.	.	.	79	8
Green Crab	.	.	.	.	.	1
American Lobster	.	.	.	.	.	2
Hermit Crabs	.	.	.	.	.	.
Paguroidea	.	.	.	.	32	1
Whelks	.	.	.	.	86	5
Spiny Sunstar	90	.	.	.	.	5
Sea Urchins	.	.	.	.	.	1
Sand Dollars	.	.	.	.	.	.
Holothuroidea	.	434	61	.	938	88
Sea Cucumber Common	.	.	.	.	.	.
Total	257	1781	61	739	628476	36125
Landings/Débarquements (kg)	3728642	3705603	3349628	3312668	3306334	3922206
Effort (trap hauls/casiers levés)	31545	37857	28606	33100	42834	39435
At sea observed catch /Débarquements observés en mer (kg)	46935	43833	38014	54897	109627	303909
At sea observed effort (trap hauls) /Efforts observés en mer (casiers levés)	367	407	281	307	1054	2361

1.2.5.42 CFA 4X

species	2020	2021	2022	2023	2024	Average/Moyen
Cod Atlantic	.	.	.	.	.	10
Redfish Unseparated	.	.	.	.	.	4
Thorny Skate	.	.	.	.	.	4
Longhorn Sculpin	.	.	.	.	.	1
Sea Raven	.	.	.	.	.	41
Lumpfish	.	.	.	.	.	1
Hookear Sculpin Atl	.	.	.	.	.	3
Jonah Crab	.	.	.	.	.	1893
Atlantic Rock Crab	.	.	.	.	.	4
Toad Crab Unident	.	.	.	.	.	179
Northern Stone Crab	.	.	.	.	.	9446
Spiny Crab	.	.	.	.	.	163
Toad Crab	.	.	.	.	.	30
Red Deepsea Crab	.	.	.	.	.	1735
American Lobster	.	.	.	.	.	160
Total	.	.	.	.	.	13672
Landings/Débarquements (kg)	73558	109324	38373	22565	4205	169691
Effort (trap hauls/casiers levés)	1416	3420	2269	1061	110	9194
At sea observed catch /Débarquements observés en mer (kg)	2653	.	378	.	.	13223
At sea observed effort (trap hauls) /Efforts observés en mer (casiers levés)	62	.	.	.	.	387

Average by-catch discards (kg) using catch. Dots indicated low values. Where species exist in a list but there is no data, this indicates some historical bycatch. The average is only for the years shown.

1.2.5.42.1 Entanglements of large megafauna

Entanglements Maritimes

Year	Whale	Leatherback turtle	Basking shark
2024	0	0	0
2023	0	0	0
2022	0	0	0
2021	0	0	0
2020	0	0	0

1.2.5.42.2 Map of locations of entanglements:

Entanglement locations in Maritimes. Whales (red), Leatherback turtles (green), Basking shark (blue).