A global network of Biogeochemical (BGC)-Argo floats provides depth-resolved monitoring of Earth's phytoplankton biomass, revealing 50% of biomass lies beyond satellite detection. The study also shows surface Chla does not accurately predict peak annual biomass timing in two-thirds of the ocean.
A two-year study by Dalhousie University researchers reveals the California Current is a crucial habitat for marine predators like tunas, sharks, and sea turtles. The study found that these species migrate predictably to the region when it warms and cools.
Researchers at Dalhousie University have found that sperm whales use distinct codas to communicate, with different sounds indicating individual identity and social status. The study also highlights the impact of human pollution on whale communication, which is crucial for their survival in the deep ocean.
A new study reveals that the duration of open water periods has no relationship with the geographic coverage of marine species, contradicting previous assumptions. Ocean currents allow fish larvae to quickly spread their distribution worldwide.
Highly diverse reef fish systems are the most vulnerable to human threats, yet they produce a greater range of goods and services. The study found that these ecosystems do not saturate with additional species, and their biomass production is negatively impacted by increasing human density.
A team of scientists mapped global diversity patterns for over 11,000 marine species, finding temperature strongly linked to biodiversity and high overlap between areas of human impact and diversity hotspots. The study suggests ocean warming may greatly affect the distribution of life in the sea.
A new study reveals a global decline of marine phytoplankton over the past century, with declines of about 1% per year. The decline is strongly correlated with rising sea surface temperatures and changing ocean conditions.
A new study published in PLoS Biology found that most fisheries management regimes are lagging behind international standards, highlighting the need for transparent policy-making processes. The research assessed global fisheries management practices and evaluated their effectiveness in ensuring sustainability.
A new study found that the simultaneous effect of habitat fragmentation, overexploitation, and climate warming accelerates population decline and increases the risk of extinction. Experimental microcosm populations of rotifers showed significant declines under individual threats, but even faster declines when exposed to multiple threats.
The Ocean Tracking Network, a global collaboration of scientists and experts, aims to track the movements of important species using electronic tags. The network will use an extensive international array of acoustic receivers on the ocean floor to collect data on water temperatures, salinity, and light conditions encountered by animals.
A global assessment of coral reef protection reveals that marine protected areas (MPAs) are often poorly managed and fail to effectively safeguard these critical ecosystems. The study found that many MPAs lack enforcement mechanisms, leading to threats such as resource extraction, poaching, pollution, coastal development, and overfishing.