We are excited to announce a summer training academy that offers graduate students and early career postdocs an opportunity to learn and practice collaborative, transdisciplinary approaches for addressing problems in marine resource sustainability. For more information about the academy and how to apply, click here.
Mary Hunsicker and colleagues have recently published an article in PLOS ONE titled: ‘Climate and Demography Dictate the Strength of Predator-Prey Overlap in a Subarctic Marine Ecosystem’
Climate- and human-induced changes in marine ecosystems have detectable impacts on the spatial distributions of fishes. However, less is known about how shifts in distributions might alter predator-prey overlap and the dynamics of prey populations. Our study revealed that population size and ocean temperatures have a synergistic effect on the strength of overlap between arrowtooth flounder (predator) and juvenile pollock (prey) in the eastern Bering Sea. Predicted changes in the strength of overlap occurred largely as a consequence of flounder movement. This result was expected because the abundance of flounder has increased eight-fold over the past three decades, prompting expansion of their habitat. In addition, flounder and pollock distributions are influenced by water temperatures and the location of the cold pool of subsurface water that forms across the continental shelf with the formation and melting of winter sea-ice. Our findings contribute to the growing evidence that continued increases in flounder abundance combined with warming ocean temperatures could translate into higher predation mortality on juvenile pollock in the eastern Bering Sea.
Flatfish Fan Club
Our purpose is:
To provide a forum to meet fellow flatfish fanatics and discuss all things flatfish!
To provide an opportunity to share flatfish-related photos, recipes, artwork, and science.
To encourage a greater appreciation of flatfish!
Marine Ecology Progress Series has announced the a Theme Sections:’Harvested fish stocks in a changing environment‘
Editors: J.M. Durant, N.C. Stenseth
Understanding the drivers that determine the productivity of marine ecosystems is important for implementing best possible management strategies. For instance, climate and exploitation interact in their effects, such that climate alterations may cause failure in a fishery management scheme while fisheries may disrupt the ability of a population to withstand, or adjust to, climate variability. Intense fisheries often result in loss of the largest individuals, resulting in a juvenated, age-truncated spawning population. Similarly, non-uniform fishing pressure on population sub-units may also lead to a reduction in the capacity of populations to withstand climate variability and change. It follows that ecosystem-based management of the world’s oceans requires a better understanding of how these changes affect food-web relationships. To explore this topic, we investigate the effect of fishing and climate on population structure across sub-Arctic ecosystems using a comparative approach. Our analyses focus on how temperature- and fishing-induced changes in spatial and demographic population structure affect recruitment and population growth. Our results suggest common patterns driving overall fisheries production in sub-Arctic ecosystems, but also highlighted differences in the relative importance of fishing and climate among the considered ecosystems.
The MEPS Theme Section features several articles from members of Marine Research Network
A project(FINGERPRINTS OF FUKUSHIMA DISASTER IN PACIFIC TUNA) which Lorenzo Ciannelli and Jason Phillips are involved in was highlighted in OSU News, OPB News and The Seattle Times on Oct 24 and Oct 27, 2012.
 Temporal effects of climate and regional scale variability on the abundance of albacore in the Northeastern Pacific Ocean
 Spatio-temporal associations of albacore catches in the Northeastern Pacific with localized and climatic environmental indices
The albacore radiation work ran on 2 TV stations:
 KGW.com – Oct 25, 2012
“We’re still processing new fish, but so far the radiation we’re detecting is far below the level of concern for human safety,” said Delvan Neville, a graduate researcher with OSU’s Radiation Health Physics program and a co-investigator on the project. Albacore … Radioactive traces from Japan found in NW albacore tuna
 KIRO Seattle – Oct 26, 2012
Seller Rich Brenenstahl said almost three-quarters of the fish he sells at his floating market are fresh, frozen and canned Albacore tuna. When he heard researchers at Oregon State University found minute traces of radiation in fish caught off the West Coast, …
Lorenzo Ciannelli and Caren Barcelo participated in the Coastal Cod Workshop at NOAA in Seattle.
Our work on jelly fish spatial and temporal dynamics in the Bering Sea was highlighted in an NSF Special Report Jellyfish Gone Wild. In addition, NSF produced a Press Release (08-088): Scientists Discover Stinging Truths About Jellyfish Blooms in the Bering Sea.
Our publication in Progress in Oceanography was summarized in the Research Highlights section of Nature Reports Climate Change.
The study by Dr. Nathan Bacheler et al “Density-dependent, landscape, and climate effects on spawning distribution of walleye pollock Theragra chalcogramma” as a feature article in Marine Ecology Progress Series volume 392, published September 28, 2009.