Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer.
Interpopulational differences in the nutritional condition of Aequiyoldia eightsii (Protobranchia: Nuculanidae) from the Western Antarctic Peninsula during austral summer.
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在澳大利亚夏季，来自南极西部半岛的Aequiyoldia 8sii（原反班氏菌：Nuculanidae）的营养状况的人口介入差异。
作者：
Bascur M;Morley SA;Meredith MP;Muñoz-Ramírez CP;Barnes DKA;Schloss IR;Sands CJ;Schofield O;Román-Gonzaléz A;Cárdenas L;Venables H;Brante A;Urzúa Á
西南极半岛（WAP）是环境变化的热点地区，自北向南具有很强的环境梯度。在这里，我们第一次使用双壳类Aequiyoldia eightsii的成年个体来评估生化组成的大尺度空间变化（以脂质、蛋白质和脂肪酸衡量）和能量含量，作为营养状况的替代指标，奥希金斯研究站位于北部（63.3°S），Yelcho研究站位于WAP中部（64.9°S），Rothera研究站位于更南部（67.6°S）。结果表明，北方群体的脂类（L）、蛋白质（P）、能量（E）和总脂肪酸（FA）含量显著高于北方群体（奥希金斯）（L：8.33 ± 1.32%; P：22.34 ± 3.16%; E：171.53 ± 17.70焦耳; FA：16.33 ± 0.98 mg/g）（L：6.23 ± 0.84%; P：18.63 ± 1.17%; E：136.67 ± 7.08焦耳; FA：10.93 ± 0.63 mg/g）和南方种群（罗塞拉）（L：4.60 ± 0.51%; P：13.11 ± 0.98%; E：98.37 ± 5.67焦耳; FA：7.58 ± 0.48 mg/g）。我们假设这些营养状况的差异可能与一些生物和环境特征有关。我们的研究结果可以解释为在每个位置的物候差异的结果，体细胞和配子生长节律的差异。对比整个WAP的环境条件，如海水温度，从浮游生物和沉积物来源的食物的数量和质量，可能会对这个物种的新陈代谢和营养摄入量的影响。
The Western Antarctic Peninsula (WAP) is a hotspot for environmental change and has a strong environmental gradient from North to South. Here, for the first time we used adult individuals of the bivalve Aequiyoldia eightsii to evaluate large-scale spatial variation in the biochemical composition (measured as lipid, protein and fatty acids) and energy content, as a proxy for nutritional condition, of three populations along the WAP: O’Higgins Research Station in the north (63.3°S), Yelcho Research Station in mid-WAP (64.9°S) and Rothera Research Station further south (67.6°S). The results reveal significantly higher quantities of lipids (L), proteins (P), energy (E) and total fatty acids (FA) in the northern population (O’Higgins) (L: 8.33 ± 1.32%; P: 22.34 ± 3.16%; E: 171.53 ± 17.70 Joules; FA: 16.33 ± 0.98 mg g) than in the mid-WAP population (Yelcho) (L: 6.23 ± 0.84%; P: 18.63 ± 1.17%; E: 136.67 ± 7.08 Joules; FA: 10.93 ± 0.63 mg g) and southern population (Rothera) (L: 4.60 ± 0.51%; P: 13.11 ± 0.98%; E: 98.37 ± 5.67 Joules; FA: 7.58 ± 0.48 mg g). We hypothesize these differences in the nutritional condition could be related to a number of biological and environmental characteristics. Our results can be interpreted as a consequence of differences in phenology at each location; differences in somatic and gametogenic growth rhythms. Contrasting environmental conditions throughout the WAP such as seawater temperature, quantity and quality of food from both planktonic and sediment sources, likely have an effect on the metabolism and nutritional intake of this species.
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DOI：
10.1098/rspb.1988.0005
发表时间：
1988-01-22
期刊：
PROCEEDINGS OF THE ROYAL SOCIETY SERIES B-BIOLOGICAL SCIENCES
影响因子：
--
作者：
DAVENPORT, J
通讯作者：
DAVENPORT, J
影响因子：
4.1
作者：
Henley, Sian F.;Schofield, Oscar M.;Meredith, Michael P.
通讯作者：
Meredith, Michael P.
亨博尔德当前系统繁殖区域中少年雌性红蹲龙虾（胸膜龙龙）的脂质含量和脂肪酸谱的纬度变化。
影响因子：
3.7
作者：
Guzmán-Rivas F;Quispe-Machaca M;Queirolo D;Ahumada M;Urzúa Á
通讯作者：
Urzúa Á
影响因子：
56.9
作者：
Cook, A. J.;Holland, P. R.;Vaughan, D. G.
通讯作者：
Vaughan, D. G.
影响因子：
2.5
作者：
Ahn, IY;Surh, J;Chung, H
通讯作者：
Chung, H