Growth patterns of the lanternfish Ceratoscopelus maderensis in the western Mediterranean Sea

IF 0.8 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY
Enric Real, A. Bernal, B. Morales-Nin, B. Molí, Itziar Álvarez, M. Pilar Olivar
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引用次数: 1

Abstract

The age and growth patterns of the mesopelagic fish Ceratoscopelus maderensis (family Myctophidae) of the western Mediterranean Sea were described throughout its entire life cycle (from larvae to adult stages) using the sagittae otoliths of 59 individuals collected in December 2009. Three characteristic zones were identified along the cross-section of the sagittae (larval, metamorphic and juvenile-adult zones). Assuming growth rings as daily increments, the age of the analysed individuals (from 3.5 to 64 mm standard length [SL]) would range from 7 to 332 days. The relationship between the number of increments and the fish SL was fitted to a von Bertalanffy growth model (SL=70.5899A~(1–exp(–0.0501(t+2.6705))). The growth pattern of C. maderensis in the western Mediterranean Sea was similar to that reported for this species in the northeast Atlantic Ocean. Though from a body size of 40-45 mm SL, growth rates declined more slowly in individuals from the western Mediterranean Sea, growth differences between these individuals and those from the northeast Atlantic Ocean were not statistically significant. This study provides new insights into the age and growth patterns of one of the most abundant mesopelagic fish species in the Mediterranean Sea that have clear implications for the study and management of marine ecosystems.
西地中海灯笼鱼的生长模式
利用2009年12月采集的59个个体的矢状耳石,描述了地中海西部中上层鱼类马德拉鱼科的整个生命周期(从幼虫到成虫阶段)的年龄和生长模式。沿着箭形目的横截面确定了三个特征区(幼虫区、变质区和幼年-成年区)。假设生长周期为每日增量,则被分析个体的年龄(3.5至64毫米标准长度[SL])将在7至332天之间。增量数量与鱼类SL之间的关系符合von Bertalanffy生长模型(SL=70.5899A~(1–exp(–0.0501(t+2.6705))。马德兰在地中海西部的生长模式与该物种在东北大西洋的生长模式相似。尽管从40-45毫米SL的体型来看,西地中海个体的生长速度下降得更慢,但这些个体与东北大西洋个体之间的生长差异在统计上并不显著。这项研究为地中海最丰富的中上层鱼类之一的年龄和生长模式提供了新的见解,对海洋生态系统的研究和管理具有明确的意义。
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来源期刊
Scientia Marina
Scientia Marina 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
21
审稿时长
6-12 weeks
期刊介绍: Scientia Marina is the successor to Investigación Pesquera, a journal of marine sciences published since 1955 by the Institut de Ciències del Mar de Barcelona (CSIC). Scientia Marina is included in the Science Citation Index since 1998 and publishes original papers, reviews and comments concerning research in the following fields: Marine Biology and Ecology, Fisheries and Fisheries Ecology, Systematics, Faunistics and Marine Biogeography, Physical Oceanography, Chemical Oceanography, and Marine Geology. Emphasis is placed on articles of an interdisciplinary nature and of general interest.
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