Linking copepod functional traits to diel vertical migration at the Patagonian shelf-break

Author:

Severo Ayelen1ORCID,Acha Eduardo Marcelo1,Cepeda Georgina Daniela1

Affiliation:

1. National Institute of Fisheries Research and Development: Instituto Nacional de Investigacion y Desarrollo Pesquero

Abstract

Abstract

Copepod diel vertical migration (DVM) is a significant phenomenon in marine ecosystems that could have implications for the biological pump and pelagic food webs. DVM has been reported in many regions of the global ocean; nevertheless, their drivers and ecological meaning are not fully understood. This study focused on the daytime and nighttime vertical abundance of select species (and developmental stages) to investigate the role of functional traits such as spawning strategy, body size, trophic group, and feeding mode in DVM at the Patagonian shelf-break (44ºS–47ºS and 60ºW–61ºW). Only females and late copepodites exhibited a normal DVM, being more abundant near the surface during the nighttime and below the thermocline during the daytime. Those species that are sac-spawners, detritivores, carnivores, omnivores, herbivores-omnivores, and cruise-feeders, such as Clausocalanus brevipes, C. laticeps, Aetideus armatus, and Oithona atlantica, were more abundant near the surface during the nighttime and below the thermocline during the daytime. Conversely, those species that are broadcasters, large-sized, herbivores, and filter-feeders, such as Calanus simillimus, Rhincalanus gigas, and Subeucalanus longiceps, did not show consistent DVM patterns, and were more abundant above the thermocline and at the fluorescence maxima, during both daytime and nighttime. Copepod depth selection appears to be influenced by a combination of morphological, physiological, behavioral, and life history traits.

Publisher

Springer Science and Business Media LLC

Reference71 articles.

1. Large-scale geographic patterns of pelagic copepods in the southwestern South Atlantic;Acha EM;J Mar Syst,2020

2. Anderson MJ, Gorley RN, Clarke KR (2008) PERMANOVA + for PRIMER: Guide to Software and Statistical Methods. PRIMER-E, Plymouth, UK, p 214

3. Diel vertical migration and feeding of copepods at an oceanic site near South Georgia;Atkinson A;Mar Biol,1992

4. Two hundred years of zooplankton vertical migration research;Bandara K;Biol Rev,2021

5. Identifying copepod functional groups from species functional traits;Benedetti F;J Plankton Res,2016

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3