Growth and reproductive traits of deep-sea pen Anthoptilum murrayi Kölliker, 1880, from Iceland (North Atlantic)

IF 1 4区生物学 Q4 ECOLOGY

Marine Biology Research Pub Date : 2022-09-14 DOI:10.1080/17451000.2022.2147949

F. García-Cárdenas, P. López-González

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引用次数: 1

Abstract

ABSTRACT Sea pens (Octocorallia: Pennatulacea) constitute one of the most important structural species in soft bottom benthic communities. Most pennatulacean species are deep-water organisms inhabiting depths from 200–6000 m. Among these deep-sea pens, a representative set of colonies from the northeastern Atlantic Anthoptilum murrayi Kölliker, 1880 was collected thanks to the BIOICE research surveys. In this study, 18 colonies of A. murrayi were used to acquire information on essential biological traits such as age and growth rates. Our results showed that the colonies collected ranged between 6–17 years, with a diametric growth rate between 0.10–0.17 mm year−1 and a linear growth rate between 14.97–15.75 mm year−1. Moreover, the number and diameter of oocytes per polyp (PRF, ERF), and the reproductive effort at the colony level (PRE, ERE) were determined. These values were compared between colonies of different sizes and within each colony. The largest observed diameter was 1179 μm for oocytes and 711.3 μm for spermatocysts. Both approaches (growth and reproduction) were correlated, indicating that a given large A. murrayi colony (∼300 mm) might be ∼17 years old and contain >7000 oocytes, from which possibly about 2000 oocytes (∼27%) would be spawned per year.

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深海笔Anthoptilum murrayi的生长和繁殖特性Kölliker, 1880，产自冰岛(北大西洋)

摘要海鞘（Octocollia：Pennatulacea）是软海底生物群落中最重要的结构物种之一。大多数三角洲物种都是栖息在200-6000米深处的深水生物。在这些深海围栏中，由于BIOICE的研究调查，1880年从大西洋东北部的Anthoptilum murrayi Kölliker收集到了一组具有代表性的群落。在这项研究中，使用了18个A.murrayi菌落来获取有关年龄和生长速率等基本生物学特征的信息。我们的结果显示，收集的菌落年龄在6-17年之间，直径生长率在0.10-0.17毫米年-1之间，线性生长率在14.97-15.75毫米年-1。此外，还测定了每个息肉的卵母细胞数量和直径（PRF、ERF），以及菌落水平的繁殖努力（PRE、ERE）。在不同大小的菌落之间以及每个菌落内比较这些值。观察到的卵母细胞最大直径为1179μm，精囊最大直径为711.3μm。两种方法（生长和繁殖）都是相关的，这表明一个给定的大型a.murrayi菌落（～300mm）可能有～17岁的年龄，含有＞7000个卵母细胞，每年可能会从中产生约2000个卵母母细胞（～27%）。

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来源期刊

Marine Biology Research 生物-海洋与淡水生物学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Marine Biology Research (MBRJ) provides a worldwide forum for key information, ideas and discussion on all areas of marine biology and biological oceanography. Founded in 2005 as a merger of two Scandinavian journals, Sarsia and Ophelia, MBRJ is based today at the Institute of Marine Research, Bergen, Norway. The Journal’s scope encompasses basic and applied research from all oceans and marine habitats and on all marine organisms, the main criterium for acceptance being quality.