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Fact Sheet Title Fact Sheet |
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Indo-Pacific king mackerel - Indian Ocean |
Indo-Pacific king mackerel Indian Ocean |
| Data Ownership | This document provided, maintained and owned by Indian Ocean Tuna Commission (IOTC) , is part of IOTC Stock Status Reports data collection. |
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ident Block | ident Block | | Species List: | Species Ref: en - Indo-Pacific king mackerel, fr - Thazard ponctué indo-pacifique, es - Carite del Indo-Pacífico |
Fishery IndicatorsProduction: Catch |
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| ident Block Indo-Pacific king mackerel - Indian Ocean
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fao Major |
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51 | Indian Ocean, Western |
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57 | Indian Ocean, Eastern |
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Aq Res | Biological Stock: Yes
Management unit: Yes Reference year: 2019 |
Considered a management unit: An aquatic resource or fishery is
declared as [Fishery] Management Unit if it is
effectively the focus for the application of selected
management methods and measures, within the broader
framework of a management system. According to the FAO
Glossary for Responsible Fishing, "a Fishery Management
Unit (FMU) is a fishery or a portion of a fishery
identified in a Fishery Management Plan (FMP) relevant
to the FMP's management objectives." FMU's may be
organised around fisheries biological, geographic,
economic, technical, social or ecological dimensions ,
and the makeup and attribute of a fishery management
unit depends mainly on the FMP's management
objectives. |
Jurisdictional distribution: Jurisdictional qualifier (e.g.
"shared", "shared - highly migratory") of the aquatic
resource related with its spatial distribution. |
Environmental group: Classification of the aquatic
resource according to the environmental group (e.g.
pelagic invertebrate, or demersal fish) to which the
species belong. |
Reference Year: The Reference Year is the last year considered in the stock assessment and/or fishery status. |
| | | | Habitat Bio Climatic Zone: Temperate; Tropical. Horizontal Dist: Oceanic. Vertical Dist: Pelagic. Geo Dist Geo Dist: Highly migratory Geo Dist | Geo Dist Indo-Pacific king mackerel - Indian Ocean
fao Major | 51: Indian Ocean, Western | 57: Indian Ocean, Eastern |
| | | | Geo Dist |
Geo DistIndo-Pacific king mackerel - Indian Ocean fao Major | 51:
Indian Ocean, Western | 57:
Indian Ocean, Eastern | Large Marine Ecosystem Areas (LME) | 30: Agulhas Current | 31: Somali Coastal Current | 32: Arabian Sea | 33: Red Sea | 34: Bay of Bengal | 38: Indonesian Sea | 39: North Australian Shelf | 42: Southeast Australian Shelf | 43: Southwest Australian Shelf | 44: West-Central Australian Shelf | 45: Northwest Australian Shelf |
Aq Res Struct Biological Stock: Yes No information is available on the stock structure of Indo-Pacific king mackerel stock structure in Indian Ocean. The IOTC coordinated Stock Structure Project, which commenced in early-2015, aims to supplement gaps in the existing knowledge on biological data, and in particular provide an insight on whether neritic tuna and tuna like species should be considered as a single Indian Ocean stock. Exploit Fishery Indicators Type | Measure | Value | Unit | Time period |
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Production | Catch | 4630 | tonnes | Average 1950 - 1959 | Catch | 7268 | tonnes | Average 1960 - 1969 | Catch | 14798 | tonnes | Average 1970 - 1979 | Catch | 22288 | tonnes | Average 1980 - 1989 | Catch | 27149 | tonnes | Average 1990 - 1999 | Catch | 34584 | tonnes | Average 2000 - 2009 | Catch | 44423 | tonnes | Average 2010 - 2019 | Catch | 43012 | tonnes | 2011 | Catch | 40708 | tonnes | 2012 | Catch | 44595 | tonnes | 2013 | Catch | 47609 | tonnes | 2014 | Catch | 45685 | tonnes | 2015 | Catch | 44973 | tonnes | 2016 | Catch | 48096 | tonnes | 2017 | Catch | 43015 | tonnes | 2018 | Catch | 45796 | tonnes | 2019 | Catch | 42471 | tonnes | 2020 |
Bio Assess Uncertainty: High A new assessment was carried out in 2021 using the data-limited techniques (CMSY and LB-SPR). Analysis using the catch only method CMSY indicates the stock is being exploited at a rate that is below FMSY in recent years and that the stock appears to be above BMSY, although the estimates would be more pessimistic if the stock productivity is assumed to be less resilient. The analysis using the length-based approach (LB-SPR) was also undertaken in 2021 and the results are not conflicting with CMSY in terms of status. The catch-only model has provided a more defensible approach in addressing the uncertainty of key parameters and the currently available catch data for the Indo-Pacific king mackerel appear to be of sufficiently improved quality for conducting an assessment albeit still with some uncertainty. Based on the weight-of-evidence currently available, the stock is considered to be not overfished and not subject to overfishing (Table 1; Fig. 2). Assess Models Type: Biomass-aggregated Optimised Catch Only Method (OCOM) Sci Advice Reported catches of Indo-Pacific king mackerel in the Indian Ocean has increased considerably since the late 2000s with recent catches fluctuating around estimated MSY, although the catch in 2020 was below the estimated MSY. This suggests that the stock is very close to being fished at MSY levels and that higher catches may not be sustained despite the substantial uncertainty associated with the assessment, a precautionary approach to management is recommended. Management Management unit: Yes Sources IOTC–SC23 2020. Report of the 23rd Session of the IOTC Scientific Committee. Seychelles, 7 – 11 December 2020. IOTC–2020–SC23–R[E]: 211pp https://www.iotc.org/sites/default/files/documents/2021/06/IOTC-2020-SC23-RE_Rev1.pdf Bibliography All references to figures, tables and bibliography in the text are found within the source of information. |
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