Shellfish Exploitation in the Western Canary Islands Over the Last Two Millennia
Shellfish Exploitation in the Western Canary Islands Over the Last Two Millennia
复制标题
过去两千年来加那利群岛西部的贝类开发
DOI:
10.1080/14614103.2018.1497821
复制
发表时间:
2020
影响因子:
1.5
通讯作者:
Surge, Donna
中科院分区:
文献类型:
--
作者:
Parker, Wesley;Yanes, Yurena;Mesa Hernández, Eduardo;Hernández Marrero, Juan Carlos;Pais, Jorge;Soto Contreras, Nora;Surge, Donna
The residents of the Canary Archipelago consumed limpets since the arrival of humans ∼2500 yrs. ago, and these harvested gastropods were deposited in large coastal shell middens. This work preliminarily explores shell margin oxygen isotope composition (δ18O) and body size of the black limpet (Patella candeid’Orbigny, 1840) from archaeological sites in the Canary Islands to assess possible seasonal variability and intensity of shellfish collection throughout the late Holocene. The shell margin δ18O values of 100 shells (radiocarbon dated between ∼500 and ∼1800 cal. yr BP) were analysed to estimate sea surface temperature (SST) at time of death. Paleotemperature estimates suggest shellfish harvesting was not year-round, and was avoided in the cooler months (when SST < 20°C). This pattern differs from most higher latitude Mesolithic and Neolithic human groups, which gathered shellfish year-round, targeting winter more heavily. Preliminary body-size measurements suggest shell sizes have experienced a decline from aboriginal times to the present, which possibly resulted from increasing anthropogenic pressures. During aboriginal inhabitation, maximum adult shell size remained stable, suggesting that present-day harvesting practices are more intense than harvesting from aboriginal human groups. This intensive collection has likely diminished the average adult size of limpet populations in the islands by ∼27%.
登录
查看更多内容
DOI:
10.1016/j.palaeo.2011.12.016
发表时间:
2012-02
期刊:
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子:
--
作者:
Ting Wang;D. Surge;S. Mithen
通讯作者:
Ting Wang;D. Surge;S. Mithen
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
M. F. S. Goñi
通讯作者:
M. F. S. Goñi
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
E. M. Hernández
通讯作者:
E. M. Hernández
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
N. Milner
通讯作者:
N. Milner
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
K. Thomas;M. Mannino
通讯作者:
M. Mannino