Intertidal Life-History of the Rock Gunnel, Pholis gunnellus, in the Western Atlantic
Intertidal Life-History of the Rock Gunnel, Pholis gunnellus, in the Western Atlantic
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西大西洋潮间带岩石冈内尔 (Pholis Gunnellus) 的生活史
DOI：
10.2307/1442176
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发表时间：
1967
期刊：
影响因子：
2.6
通讯作者：
Philip J. Sawyer
中科院分区：
文献类型：
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作者：
Philip J. Sawyer
对来自芬迪湾、缅因州南部和新罕布什尔州海岸的潮间带鱼种群进行了调查。收集到的数据部分与 Qasim (1957) 在威尔士研究同一物种时发表的信息进行了比较。大西洋两岸的岩沟鱼食物中 75% 是小型甲壳类动物。在缅因州南部、新罕布什尔州和威尔士采集的标本的生长率相当。在大西洋两岸，三龄鱼和四龄鱼的长度分别约为130毫米和150毫米。来自芬迪湾的菲利斯生长得更慢。人们发现大西洋两岸的产卵几乎同时发生。然而，北美海岸的菲利斯于 12 月 1 日左右离开潮间带，直到 3 月初才返回。产卵发生在这个时期，当它们低于低潮线时。大西洋东侧的个体仅在十二月期间从潮间带消失。相比之下，这些种群的卵块经常在潮间带收集。
Intertidal populations of Pholis gunnellus from the Bay of Fundy, southern Maine and New Hampshire coasts were investigated. Data gathered were compared, in part, with information published by Qasim (1957) who studied the same species in Wales. Small crustaceans make up 75% of the rock gunnels' food on both sides of the Atlantic. Growth rates of specimens collected in southern Maine, New Hampshire, and Wales were comparable. Threeand four-year-old fish attained lengths of about 130 mm and 150 mm respectively on both sides of the Atlantic. Pholis from the Bay of Fundy grew more slowly. Spawning was found to occur at approximately the same time on both sides of the Atlantic. However, Pholis on the North American coast leave the intertidal area about 1 December and do not return until early March. Spawning occurs during this period while they are below the low tide mark. Individuals on the east side of the Atlantic disappear from the intertidal zone only during December. In contrast, the egg masses of those populations are collected frequently in the intertidal area.