Ancient fish bones reveal impacts of global warming beneath the sea

December 12, 2007
Ancient fish bones reveal impacts of global warming beneath the sea

Part of the fishbones from 1m2 of the Maglemosegaard excavation. 48 percent of the 12,784 identified fish bones were from gadids, mainly cod. Each red bar segment on the scale is 1 cm. Credit: G. Brovad

Scientists studying ancient fish bones in Scandinavia have discovered that warm-water species like anchovies and black sea bream that once thrived in Danish waters during a prehistoric warm period are now returning. Some cold-water species, such as cod, were also abundant during this period, having benefited from a lower fishing effort.

Through the study of archaeological material, tax accounts, church registers and account books of monasteries, an international group of fisheries ecologists and fisheries/maritime historians have drawn a picture of marine life in the northern European seas (North Sea, Wadden Sea, Baltic Sea, and White Sea) as it looked in the past.

Their findings are presented in a special issue of Fisheries Research “History of Marine Animal Populations and their Exploitation in Northern Europe, ” 14 papers starting from ca. 7000 BC to present. The volume is edited by Henn Ojaveer and Brian R. MacKenzie.

New historical documentation is increasingly becoming available. Its interpretation is providing a broader basis for understanding processes and mechanisms that lead to variations in marine populations and ecosystems. The studies in this special issue are important contributions to the establishment of new baselines for management of marine ecosystems including conservation strategies for overexploited living resources. They were conducted under the auspices (or as part of) the History of Marine Animal Populations, a project of the international collaboration, the Census of Marine Life.

Fisheries Research “History of Marine Animal Populations and their Exploitation in Northern Europe Volume 87, Issues 2-3, Pages 101-262 (November 2007) http://www.science … nal/01657836.

Source: Census of Marine Life

4.8 /5 (5 votes)  

Filter


Move the slider to adjust rank threshold, so that you can hide some of the comments.


Display comments: newest first

dachpyarvile
Dec 21, 2007

Rank: not rated yet
This is the smoking gun that shows that the global warming taking place today may not be man-made after all.
Rank 4.8 /5 (5 votes)
Tags

Relevant PhysicsForums posts

More news stories

A mitosis mystery solved: How chromosomes align perfectly in a dividing cell

Although the process of mitotic cell division has been studied intensely for more than 50 years, Whitehead Institute researchers have only now solved the mystery of how cells correctly align their chromosomes during symmetric ...

Biology / Cell & Microbiology

created 17 hours ago | popularity 4.5 / 5 (22) | comments 0 | with audio podcast

Integrated pest management recommendations for the southern pine beetle

The southern pine beetle, Dendroctonus frontalis Zimmermann, is a chronic insect pest within pine forests in the southeastern United States. Under favorable environmental and host conditions, it is an agg ...

Biology / Ecology

created 2 hours ago | popularity not rated yet | comments 0

Researchers find extensive RNA editing in human transcriptome

In a new study published online in Nature Biotechnology, researchers from BGI, the world's largest genomics organization, reported the evidence of extensive RNA editing in a human cell line by analysis of RNA-seq data, demons ...

Biology / Biotechnology

created 17 hours ago | popularity 5 / 5 (4) | comments 0 | with audio podcast

The proteins ensuring genome protection

Researchers from the University of Geneva (UNIGE), Switzerland, have discovered the crucial role of two proteins in developing a cell 'anti-enzyme shield'. This protection system, which operates at the level of molecular ...

Biology / Cell & Microbiology

created 17 hours ago | popularity 5 / 5 (3) | comments 0 | with audio podcast

Entire genome of extinct human decoded from fossil

(PhysOrg.com) -- In 2010, Svante Pääbo and his colleagues presented a draft version of the genome from a small fragment of a human finger bone discovered in Denisova Cave in southern Siberia. The ...

Biology / Biotechnology

created Feb 07, 2012 | popularity 4.7 / 5 (60) | comments 51 | with audio podcast


Ordered planar polymers created for the first time

(PhysOrg.com) -- Scientists under the direction of ETH Zurich have created a minor sensation in synthetic chemistry. They succeeded for the first time in producing regularly ordered planar polymers that form ...

New European rocket lifts off on maiden flight

A new lightweight rocket, Vega, lifted off from Europe's space base Monday carrying nine satellites on its inaugural flight, mission control said.

Chinese city seizes Apple iPads in name dispute

(AP) -- Authorities have seized Apple iPads from retailers in a city in northern China due to a dispute with a domestic company that says it owns the iPad name, an official said Monday. The Chinese company said it is asking ...

Microsoft India retail site down after 'cyber attack'

Microsoft India's retail website was down on Monday after reportedly being hacked by a Chinese group calling itself Evil Shadow Team.

Researchers find rate of follow-up surgeries after partial mastectomy varies greatly

(Medical Xpress) -- A study conducted at the University of Vermont/Fletcher Allen Health Care and three other sites and published in the February 1 issue of the Journal of the American Medical Association found significant ...

Rapunzel, Leonardo and the physics of the ponytail

(PhysOrg.com) -- New research provides the first mathematical understanding of the shape of a ponytail and could have implications for the textile industry, computer animation and personal care products.