Canada's Ocean Crisis: The Collapsing Foundation of Marine Life

HALIFAX, NS – May 05, 2026 – The bedrock of Canada’s vast marine ecosystems is crumbling, according to a stark new report that warns of widespread collapse among the small but vital fish populations that support all other life in the ocean. The assessment from Oceana Canada, titled Little Being, Big Foundation, delivers a damning verdict on the health of the nation's forage fish, revealing that more than 80 per cent of 16 federally managed stocks—including herring, capelin, and mackerel—are in a perilous state.

The report squarely faults Fisheries and Oceans Canada (DFO) for years of mismanagement, accusing the federal body of prioritizing short-term gains over long-term sustainability and ignoring its own scientific advice and legal mandates. As Canada's major fishing season gets underway, the findings cast a long shadow over the future of coastal economies, iconic wildlife, and the overall health of the Atlantic and Pacific oceans.

“For too long, DFO has waited to act and allowed short-term decisions to override long-term sustainability,” said Jack Daly, a marine scientist with Oceana Canada, in a statement accompanying the report. “The result is predictable: weaker ecosystems and missed economic opportunities. This must change now.”

An Ecosystem on the Brink

Forage fish are the unsung heroes of the marine world. Species like herring, capelin, sand lance, and mackerel form immense schools that serve as a critical energy source, transferring nutrients from plankton up to the top of the food web. They are the primary food for commercially valuable species like cod, salmon, and halibut, as well as marine mammals and seabirds. Humpback whales, puffins, and northern gannets all depend on a reliable supply of these small, oily fish to survive.

According to Oceana Canada's assessment, this vital link in the food chain is broken. The report highlights the collapse of multiple herring populations in the Atlantic, the dire state of capelin off the coast of Newfoundland and Labrador, and the critical depletion of Atlantic mackerel. Of the 16 key forage fish stocks under federal jurisdiction, only three are considered healthy, and an even smaller number—just three—are afforded legal protection under Canada's Fisheries Act.

This ecological deficit has tangible consequences. The report features testimony from a head naturalist at a Nova Scotia whale-watching company who has documented a decline in humpback whale sightings, correlating it directly with the disappearance of their food. This trend threatens a cornerstone of the coastal tourism industry, which relies on the spectacle of a vibrant, healthy ocean to draw visitors from around the world.

The High Cost of Mismanagement

While the ecological price is steep, the economic logic behind the current management strategy is also being called into question. The report reveals a staggering disparity: the depleted forage fish stocks that continue to be harvested generate less than two per cent of Canada’s total landed fisheries value. In contrast, the ecosystem services these fish support—by feeding more valuable commercial species and fueling the tourism sector—are immense.

A January 2026 analysis by Statistics Canada, cited in the report, valued the ecosystem services provided by Canada's oceans at over $7.1 billion in 2023. These benefits, which include everything from food provision to cultural services, are directly dependent on ecosystem health. By allowing the foundation of that system to be fished to dangerously low levels, critics argue DFO is jeopardizing a multi-billion-dollar natural asset for a comparatively small return.

The economic pain is also felt acutely within the fishing industry itself. The decline of forage fish creates a bait crisis for some of Canada's most lucrative fisheries, including the lobster and snow crab industries, which rely on a steady supply of herring and mackerel. As bait becomes scarcer and more expensive, the profitability of these cornerstone fisheries is directly threatened, creating economic instability in coastal communities from Nova Scotia to British Columbia.

A Failure of Policy and Protection

At the heart of the crisis is a perceived failure by Fisheries and Oceans Canada to fully implement its own laws and policies. A modernized Fisheries Act, updated in 2019, includes powerful provisions mandating the rebuilding of depleted fish stocks. It legally requires the minister to develop and implement rebuilding plans for major stocks that fall into the 'critical zone'.

However, environmental groups and legal experts point to a significant gap between the law's intent and its application. Many critical stocks, including several forage fish populations, still lack the robust, science-based rebuilding plans required by the Act. The report from Oceana Canada charges that DFO continues to set quotas for critically depleted stocks at levels that science cannot justify, effectively undermining any chance of recovery.

Oceana Canada is calling on Fisheries Minister Joanne Thompson to take three decisive steps to reverse the decline:

1. Fully implement the *Fisheries Act* by extending its legal protections to all 16 federally managed forage fish stocks.
2. Apply science-based guardrails, establishing clear, ecosystem-based limits that dictate how fishing levels must be reduced when a population is at risk.
3. Pair Western science with Indigenous Knowledge Systems, recognizing that a holistic understanding is essential for effective stock assessments, rebuilding strategies, and overall marine planning.

A Path to Recovery

Despite the grim assessment, the report stresses that recovery is not only possible but has been proven to work. The case of Atlantic mackerel, once a poster child for mismanagement, now offers a glimmer of hope. Following years of campaigning, the stock now has a rebuilding plan in place and is on a path toward recovery, demonstrating that decisive action can yield positive results.

On Canada's West Coast, another model for success has emerged through collaboration. Partnerships that integrate the deep, multi-generational knowledge of Indigenous communities with Western scientific methods have strengthened the management of Pacific herring stocks, leading to improved ecosystem health in those regions.

These examples underscore the report's central message: abundance can return when management aligns with science, law, and a holistic view of the ocean. The future of Canada's oceans—and the communities and wildlife that depend on them—hinges on whether the government is willing to shift its focus from managing decline to actively rebuilding the small fish that make everything else possible.