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Ocean Fisheries

topic v1.0.0 2026-04-05 Agent-extracted

Global fisheries production, overfishing dynamics, aquaculture growth, and marine ecosystem health. Covers wild fish catch trends, stock depletion, marine protected area effectiveness, and the aquaculture transition.

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Domain: Ocean Fisheries and Marine Resources

Global fisheries production, overfishing dynamics, aquaculture growth, and marine ecosystem health

Period: 1970-present Population: Maritime nations Level: macro

Overview

6
Constructs
5
Findings
2
Engines

Constructs

marine_fish_catch_tonnes Marine Fish Catch in Tonnes

Total annual marine capture fisheries production measured in metric tonnes, including all marine fish, crustaceans, and mollusks harvested from ocean waters

overfished_stock_percentage Percentage of Overfished Stocks

Proportion of assessed fish stocks that are fished at biologically unsustainable levels, where current biomass is below the level that produces maximum sustainable yield

aquaculture_production_tonnes Aquaculture Production in Tonnes

Total annual production from aquaculture (farming of fish, crustaceans, mollusks, and aquatic plants) measured in metric tonnes

marine_protected_area_coverage Marine Protected Area Coverage

Proportion of a country's territorial waters designated as marine protected areas with restrictions on fishing and extractive activities, expressed as a percentage

fish_consumption_per_capita_kg Fish Consumption Per Capita

Average annual per capita consumption of fish and seafood products measured in kilograms of live weight equivalent per person

fishing_fleet_capacity Fishing Fleet Capacity

Total capacity of a country's fishing fleet measured in gross tonnage or number of motorized vessels, indicating fishing effort potential

Findings

The percentage of global fish stocks fished at biologically unsustainable levels increased from 10% in 1974 to 35.4% in 2019, indicating a long-term trend of increasing overexploitation

Direction: positive Confidence: strong Method: stock_assessment

Marine protected areas with no-take restrictions show an average 670% increase in fish biomass within their borders compared to unprotected adjacent areas

Direction: positive Confidence: strong Method: meta_analysis

Global aquaculture production surpassed wild capture fisheries for the first time in 2020, producing 87.5 million tonnes compared to 78.8 million tonnes from marine and inland capture

Direction: positive Confidence: moderate Method: descriptive_statistics

Excess fishing fleet capacity is a primary driver of overfishing, with global fleet capacity estimated at 2-3 times the level needed to harvest current sustainable yields

Direction: positive Confidence: strong Method: ols_regression

Rights-based fisheries management could rebuild stocks to levels producing 98% of maximum sustainable yield, increasing global catch by 12% relative to business-as-usual

Direction: conditional Confidence: moderate Method: bioeconomic_model

Engines

ols_regression correlation_matrix

Sources

Pauly, D., Christensen, V., Guenette, S., Pitcher, T.J., et al. (2002). Towards sustainability in world fisheries DOI
Food and Agriculture Organization of the United Nations (2022). The State of World Fisheries and Aquaculture 2022: Towards Blue Transformation
Costello, C., Ovando, D., Clavelle, T., Strauss, C.K., et al. (2016). Global fishery prospects under contrasting management regimes DOI
Lester, S.E., Halpern, B.S., Grorud-Colvert, K., et al. (2009). Biological effects within no-take marine reserves: a global synthesis DOI

Tags

topicocean-fisheries

Details

Domain: Ocean Fisheries and Marine Resources

Global fisheries production, overfishing dynamics, aquaculture growth, and marine ecosystem health

Temporal scope: 1970-present | Population: Maritime nations

Key Findings

  • The percentage of global fish stocks fished at biologically unsustainable levels increased from 10% in 1974 to 35.4% in 2019, indicating a long-term trend of increasing overexploitation (positive, strong)
  • Marine protected areas with no-take restrictions show an average 670% increase in fish biomass within their borders compared to unprotected adjacent areas (positive, strong)
  • Global aquaculture production surpassed wild capture fisheries for the first time in 2020, producing 87.5 million tonnes compared to 78.8 million tonnes from marine and inland capture (positive, moderate)
  • Excess fishing fleet capacity is a primary driver of overfishing, with global fleet capacity estimated at 2-3 times the level needed to harvest current sustainable yields (positive, strong)
  • Rights-based fisheries management could rebuild stocks to levels producing 98% of maximum sustainable yield, increasing global catch by 12% relative to business-as-usual (conditional, moderate)

Installation

Install this PAX into your Praxis instance:

praxis_import_pax("ocean-fisheries.pax.tar.gz", install=True)