Sharks, Seabass Rebound After Fishing Banned

Big fish have returned to California's southern coast following a 15-year ban on gill net fishing.

Tuna Fishery Traps Dolphins, Birds and Sharks

Fishing for tuna in the eastern North Atlantic took a heavy toll on marine animals during the 1990s.

New Fish Arrives in Arctic Ocean

One marine animal has quickly taken advantage of the recent rise in northern ocean temperatures.

Rising Atlantic Erodes Waterfront Real Estate

Although the Atlantic Ocean is rising by only a fraction of an inch each year, scientists warn that the increase is enough to radically change the coastline of the northeastern United States in coming decades.

Oceans Gaining Ground at Unusually Rapid Rate

Global warming has recently accelerated the pace of rising sea water.

Species Shift Distorts Marine Food Web

The ocean’s interlinked food web of photosynthesizers, grazers, predators and detritus recyclers is being reconfigured.

Sea Life Flourishes On Sunken Ships

After sinking 18 ships off British Columbia’s southern coast for recreational diving, the question arises as to whether the overall ecological benefits of the artificial reefs outweigh the losses.

Pacific Fish Have Gotten Smaller

The size of fish living near the ocean floor along the Pacific coast of the United States has declined dramatically in two decades.

Rockfish Caught Near Salmon Farms High in Mercury

Mercury concentrations are elevated in copper rockfish and quillback rockfish taken near salmon farms along British Columbia’s coast.

Salmon

Wild Adult Salmon Aren't Exacerbating Lice Epidemic

Marine biologists were surprised to find that the numbers of sea lice on juvenile salmon didn't climb when louse-infested wild adults swam by on their way to spawning.

Juvenile Salmon Succumb to Sea Lice

It only takes a few sea lice to kill juvenile pink and chum salmon, and most louse-infested fish die.

Record Wild Salmon Return - Despite Sea Lice

A record 34% of pink salmon fry from rivers flowing into Kingcome and Knight Inlets in British Columbia survived at sea and returned to spawn in 2004.

Migration No Longer Separates Salmon From Sea Lice

Analyses of several sets of data finds mortality rates of 9 to 95% among various juvenile wild salmon populations as they migrate past salmon farms east of Vancouver Island.

Pink Salmon Competition Reduces Chinook Survival

Young chinook salmon fair poorly when competing with large numbers of pink salmon.

Invasive Species

Chinook Salmon Rapidly Colonize Rivers

It's taken less than thirty years for chinook salmon that were let loose in South America to establish spawning runs along 1500 kilometres of the South Pacific coast.

Tenacious Sea Squirt Invades North American Waters

Scientists warn that an aggressive sea squirt could wreak ecological havoc to marine environments and economically harm the aquaculture and fishing industries.