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首页> 外文期刊>Marine biology >Temporal variation in protein, carbohydrate, and lipid concentrations in Paramuricea clavata (Anthozoa, Octocorallia): evidence for summer-autumn feeding constraints
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Temporal variation in protein, carbohydrate, and lipid concentrations in Paramuricea clavata (Anthozoa, Octocorallia): evidence for summer-autumn feeding constraints

机译：甲旁草（Anthozoa，Octocorallia）中蛋白质，碳水化合物和脂质浓度的时间变化：夏秋季饲喂限制的证据

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Temporal variations in protein, carbohydrate, and lipid levels were studied in a passive suspension feeder, the gorgonian Paramuricea clavata. The samples were collected every month for mature and immature colonies over a three-year period (1997-2000). The relationship between biochemical composition and reproductive output was examined on the basis of the 1998 and 1999 data. In female and male P. clavata colonies, the tissue displayed differences in lipid concentrations only in winter-spring, due to the high lipid levels attained by female colonies in this period. Immature colonies showed significant differences in lipid concentration only with respect to mature females in spring. There were clear seasonal trends in the lipid and carbohydrate levels in P. clavata, with maximum values in winter-spring [male lipid 212 ±75 SD μg mg~(-1) of organic matter (OM) and female lipid 274 ± 103 SD μg mg~(-1) of OM; male and female carbohydrate 68 ± 14 SD μg mg~(-1) of OM], coinciding with maximum food concentration/quality, and minimum values in summer-autumn (male and female lipid 155 ±57 SD μg mg~(-1) of OM; male and female carbohydrate 56 ± 14 SD μg mg~(-1) of OM), coinciding with low food concentration/quality. The relationship between reproductive output and tissue concentrations of lipids, carbohydrates, and proteins was not straightforward, although there was an evident overlap of the lipid accumulation and the gonadal development. The results of this study show that protein, carbohydrate, and lipid levels may provide a record of episodes in the ecological cycle bearing on the trophic aspects of the target species. The results indicate that information on seasonal biochemical levels may explain benthopelagic coupling processes, provided factors such as natural diet, feeding rates, reproduction, and growth are well understood.
机译：蛋白质，碳水化合物和脂质水平的时间变化是在被动悬浮喂食器，高粱Paramuricea clavata中进行的。在三年的时间内（1997-2000年），每个月收集样本用于成熟和不成熟菌落。根据1998年和1999年的数据，检查了生化成分与生殖产量之间的关系。在雌性和雄性P. clavata菌落中，该组织仅在冬春季才显示出脂质浓度的差异，这是由于在此期间雌性菌落获得了很高的脂质水平。未成熟菌落仅在春季显示出相对于成年雌性的脂质浓度有显着差异。山楂的脂类和碳水化合物的含量有明显的季节性趋势，冬春季最高[雄性脂质212±75 SDμgmg〜（-1）有机质（OM）和雌性脂质274±103 SD微克mg〜（-1）OM;男性和女性碳水化合物68±14 SDμgmg〜（-1），与最大食物浓度/质量和夏季秋季的最小值（男性和女性脂质155±57 SDμgmg〜（-1）一致） OM;男性和女性碳水化合物为56±14 SDμgmg〜（-1）OM），与低食物浓度/质量相吻合。生殖输出与脂质，碳水化合物和蛋白质的组织浓度之间的关系并不直接，尽管脂质蓄积和性腺发育有明显的重叠。这项研究的结果表明，蛋白质，碳水化合物和脂质的水平可能提供有关目标物种营养方面的生态周期事件记录。结果表明，只要人们对自然饮食，摄食率，繁殖和生长等因素有充分了解，有关季节性生化水平的信息可能解释了角鲨鱼上皮耦合过程。

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