Ancient fish bones reveal impacts of global warming beneath the sea

Dec 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) www.sciencedirect.com/science/journal/01657836.

Source: Census of Marine Life

Explore further: Shaking up cell biology: Researchers focus in on decades-old mitochondrial mystery

add to favorites email to friend print save as pdf

Related Stories

New health scans provide data on ancient mummies

1 hour ago

A mummy rolled down hospital hallways here on Sunday. Amen-Nestawy-Nakht, a 3,000-year-old Egyptian priest, was getting a CAT scan at Barnes-Jewish. It was probably his second. The lastonewas a couple of decades ago, when ...

'Great wall of Jakarta' plan to combat floods

2 hours ago

Jakarta has launched a multi-billion-dollar scheme to build a huge sea wall to combat flooding as the Indonesian capital sinks, but there is scepticism about its chances of success in a country with a history ...

Recommended for you

Team advances genome editing technique

11 hours ago

Customized genome editing – the ability to edit desired DNA sequences to add, delete, activate or suppress specific genes – has major potential for application in medicine, biotechnology, food and agriculture.

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

dachpyarvile
not rated yet Dec 21, 2007
This is the smoking gun that shows that the global warming taking place today may not be man-made after all.