| Summary | California market squid (Loligo opalescens) is found from Baja Mexico to Alaska, USA yet is managed by separate state departments. |
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| Project | SESMAD |
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| Subtype | Natural Resource Unit |
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| Sector | Fisheries (Stock-specific) |
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| Biotic | Yes |
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| Explanation | |
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| Commons Aggregation | Population |
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| Explanation | One population from Mexico to Alaska that spawns throughout the year (new cohort added almost monthly) (FMP 2005). |
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| Commons Boundaries | Somewhat unclear boundaries (2) |
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| Explanation | The range of market squid is from the southern tip of Baja California, Mexico (23° N latitude) to southeastern Alaska (55° N latitude). Juveniles and adults range throughout the California and Alaska Current systems (Roper and Sweeney 1984). Generally know historical grounds, but moves according to conditions. |
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| Commons Indicator | [""] |
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| Explanation | Ecosystem Health in terms of condition of ecosystem. Not strongly used as an indicator. But squid respond to temperature changes and so are somewhat used to describe temperature changes (e.g. ENSO, warm blob). Likely could be used to provide real-time monitoring of the ecosystem and serve as productivity integrators (Jackson and Domeier 2003). |
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| Commons Unit Size | Small (2) |
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| Explanation | Average mantle length is 152 mm at the time of spawning. |
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| Environmental Medium | Oceanic |
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| Explanation | |
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| Inter Annual Predictability | Low (1) |
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| Explanation | Very difficult to determine, based on conditions. |
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| Intra Annual Predictability | Moderate (2) |
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| Explanation | Recruitment surveys help inform, but not always accurate. |
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| Commons Renewability | Renewable (1) |
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| Explanation | Reflective of environmental conditions. Reproduces quickly. |
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| Productivity | Very productive (3) |
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| Explanation | "Mostly water" according to participants. However, high growth rate, mature early, and reproduce quickly (Jackson and Domeier 2003).
The rapid ‘live-fast, die-young’ strategy of squid appears to be due to a unique combination of features that include: (1) efficient digestion coupled with a protein based metabolism; (2) sustaining continued growth using a combination of an increase in muscle fibre size (hypertrophy) along with continual recruitment of new muscle fibres (hyperplasia); (3) efficient use of oxygen and (4) low levels of antioxidative defence (Jackson and O’Dor 2001). |
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| Commons Accessibility | Somewhat accessible (2) |
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| Explanation | Use various technologies and fishing history to find. But sometimes completely not accessible (likely due to oceanic conditions, believe in warm waters squid migrate too deep to catch). |
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| Commons Heterogeneity | High (3) |
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| Explanation | Very patchy (even referred to as patchy in the management plan). |
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| Commons Mobility | High (3) |
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| Explanation | Migrate from Baja Mexico up to Alaska, though most spawning occurs in Southern and Central California (Vojkovich 1998). Also do daily vertical migrations. |
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| Commons Spatial Extent | 900649 |
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| Explanation | From Baja Mexico to 55degrees North in Alaska, about 200 nm out from the coast
900,649km 2 |
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| Technical Substitute | No |
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| Explanation | |
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