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首页> 外文期刊>CRUSTACEANA >Influence de la salinite et de la temperature sur la croissance d'Arctodiaptomus salinus (Daday, 1885) (Copepoda, Calanoida), du marais temporaire sale, 'La Sebkha Zima', MarocThe influence of salinity and temperature on the growth of Arctodiaptomus
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Influence de la salinite et de la temperature sur la croissance d'Arctodiaptomus salinus (Daday, 1885) (Copepoda, Calanoida), du marais temporaire sale, 'La Sebkha Zima', MarocThe influence of salinity and temperature on the growth of Arctodiaptomus

机译：盐度和温度对Maroc临时肮脏沼泽“ La Sebkha Zima”的盐沼弧菌（Daday，1885年）（卡拉皮达科佩达）的影响盐度和温度对弧菌的生长的影响

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The copepod, Arctodiaptomus salinus (Daday, 1885) shows variations in body size (between 1240 and 2360 mum in the female) as well as variations in density at three stations of different salinity, labelled FE, FS, and LZ, in La Sebkha Zima, a temporary, saline lake in Morocco. The species has two generations a year at sta. FE versus a single generation at FS and LZ. The number of generations largely depends on ambient temperature and salinity. An experimental study on the influence of these factors on the growth of A. salinus demonstrates that embryonic development (De) takes from 2 to 22 days and that the time required for postembryonic development (Dp) (= Dn + Dc: naupliar development + copepoditic development) varies between 15 and 75 days, all as a function of environmental temperature and salinity. Both embryonic and postembryonic development times decrease with a rise in temperature and also with an increase in salinity at 10degreeC. At low temperatures, an increase in salinity evokes an increase in size of the various developmental stages of A. salinus, whereas the reverse is observed at higher temperatures. By contrast, the size of the developmental stages generally diminishes with a raise in temperature. This study has also shown the existence of a limited range of both temperature and salinity, in which the species apparently has little trouble surviving and thriving (as judged from longevity and survival rates) as well as an extended range in those environmental factors in which the species has more difficulty surviving and, apparently, has to resort to individual variability, i.e., relies on the survival of a few, hardy individuals, to maintain the continuity of its population.
机译：pe足类足Arc（Arctodiaptomus salinus，戴迪，1885年，戴达）在La Sebkha Zima中显示出体型的变化（雌性在1240至2360毫米之间），以及三个不同盐度的站点（分别标为FE，FS和LZ）的密度变化。摩洛哥的一个临时盐湖。该物种一年有两代。 FE与FS和LZ的单代产品相比。世代数很大程度上取决于环境温度和盐度。对这些因素对盐沼曲霉生长的影响进行的实验研究表明，胚胎发育（De）需2到22天，而胚胎后发育（Dp）所需的时间（= Dn + Dc：无节幼体发育+两生发育）在15到75天之间变化，这都取决于环境温度和盐度。胚胎和胚胎后的发育时间都随着温度的升高而减少，并且在10℃下盐度也随之增加。在低温下，盐度的增加引起盐沼曲霉各个发育阶段的大小增加，而在较高温度下观察到相反的情况。相反，随着温度的升高，发育阶段的大小通常会减小。这项研究还表明，温度和盐度都存在有限的范围，其中该物种的生存和繁衍（根据长寿和生存率判断）似乎没有什么问题，并且在这些环境因素中存在扩展范围。物种的生存更加困难，并且显然必须诉诸于个体变异性，即依赖于少数强壮个体的生存来维持种群的连续性。

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