Further considerations regarding the antiquity of the abyssal fauna with evidence for a changing abyssal environment

Deep Sea Research (1953) Pub Date : 1961-09-01 DOI:10.1016/0146-6313(61)90001-6

Robert J. Menzies , John Imbrie, Bruce C. Heezen

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引用次数: 16

Abstract

Further considerations regarding the antiquity of the abyssal fauna suggest continued confusion regarding the terms ‘Ancient’ and ‘Deep’ with reference to the marine fauna.

Two hypotheses concerned with ecological conditions in the abyss of the oceans prevail. Zenkevitch and Birstein (1960) adhere to a belief in constancy of abyssal conditions with the passage of time. Assembled here are data suggesting changing abyssal conditions with time. These opposing views lead to quite different concepts of the antiquity of the abyssal fauna.

The available data suggest that abyssal depths are populated with recent as well as ancient types of organisms and also that the abyssal fauna is far more diverse than has been previously recognized. Arguments are presented in support of the validity of oxygen isotope measurements on benthic Foraminifera from abyssal sediments.

A plea is made for careful, critical studies on the zoology, paleontology, and geochemistry of long cores of submarine sediment as a means of obtaining additional evidence for the understanding of the present composition of the abyssal fauna.

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进一步考虑深海动物群的古老与深海环境变化的证据

进一步考虑深海动物群的古老，表明在涉及海洋动物群时，“古代”和“深海”这两个术语仍然存在混淆。关于海洋深处的生态状况，有两种假说盛行。Zenkevitch和Birstein(1960)坚持相信深海环境会随着时间的推移而不断变化。这里汇集的数据表明，深海环境随着时间的推移而变化。这些对立的观点导致了关于深海动物群的古代的完全不同的概念。现有的资料表明，深海深处既有古代的生物，也有近代的生物，深海动物群的多样性远比以前所认识的要大得多。提出了支持氧同位素测量深海沉积物底栖有孔虫的有效性的论点。人们呼吁对海底沉积物长岩心的动物学、古生物学和地球化学进行认真、批判的研究，以此作为了解深海动物群目前组成的额外证据的手段。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Deep Sea Research (1953)

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