Evidence of increased mussel abundance related to the Pacific marine heatwave and sea star wasting

IF 1.5 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY

Marine Ecology-An Evolutionary Perspective Pub Date : 2022-07-13 DOI:10.1111/maec.12715

Sarah B. Traiger, James L. Bodkin, Heather A. Coletti, Brenda Ballachey, Thomas Dean, Daniel Esler, Katrin Iken, Brenda Konar, Mandy R. Lindeberg, Daniel Monson, Brian Robinson, Robert M. Suryan, Benjamin P. Weitzman

引用次数: 5

Abstract

Mussels occupy a key middle trophic position in nearshore food webs linking primary producers to predators. Climate-related environmental changes may synergistically combine with changes in predator abundance to affect intertidal ecosystems. We ex - amined the influence of two major events on mussel ( Mytilus trossulus ) abundance in the northern Gulf of Alaska: the recent Pacific marine heatwave (PMH, 2014– 2016) and an outbreak of sea star wasting (SSW). We investigated how

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贻贝丰度增加的证据与太平洋海洋热浪和海星消耗有关

贻贝在连接初级生产者和捕食者的近岸食物网中处于关键的中等营养地位。与气候有关的环境变化可能与捕食者丰度的变化协同结合，影响潮间带生态系统。我们研究了两个主要事件对阿拉斯加湾北部贻贝(Mytilus trossulus)丰度的影响:最近的太平洋海洋热浪(PMH, 2014-2016)和海星损耗(SSW)的爆发。我们研究了自SSW开始以来贻贝丰度的变化，以及掠食性海星的密度或pmh相关的温度指标是否解释了贻贝丰度的变化。自2005年以来，大约每年在阿拉斯加湾北部的四个地区进行海星和贻贝调查:卡特迈(KATM)，卡切马克湾(KBAY)，基奈峡湾(KEFJ)和威廉王子湾西部(WPWS)。在海星数量下降1-3年后，所有地区以及KATM、KBAY和KEFJ的低潮间带的中潮间带贻贝覆盖率都有所增加，但在WPWS则没有。SSW开始后，大贻贝(≥20 mm)密度和贻贝床宽度在KATM增加，而在其他区域没有增加。总贻贝密度，包括新成员，在SSW发生前后没有差异。海星的总数显著地解释了贻贝度量的变化，但所检查的三种海星的比例却没有。我们没有发现温度对贻贝有直接影响的有力证据。PMH和SSW爆发的影响似乎是结合在一起的，温度升高间接有利于贻贝，同时海星自上而下的压力减轻，使得贻贝数量增加。贻贝丰度的变化可能会影响潮间带当地的生产力以及其他近岸贻贝消费者的丰度或性能。

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来源期刊

Marine Ecology-An Evolutionary Perspective 生物-海洋与淡水生物学

CiteScore

2.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Marine Ecology publishes original contributions on the structure and dynamics of marine benthic and pelagic ecosystems, communities and populations, and on the critical links between ecology and the evolution of marine organisms. The journal prioritizes contributions elucidating fundamental aspects of species interaction and adaptation to the environment through integration of information from various organizational levels (molecules to ecosystems) and different disciplines (molecular biology, genetics, biochemistry, physiology, marine biology, natural history, geography, oceanography, palaeontology and modelling) as viewed from an ecological perspective. The journal also focuses on population genetic processes, evolution of life histories, morphological traits and behaviour, historical ecology and biogeography, macro-ecology and seascape ecology, palaeo-ecological reconstruction, and ecological changes due to introduction of new biota, human pressure or environmental change. Most applied marine science, including fisheries biology, aquaculture, natural-products chemistry, toxicology, and local pollution studies lie outside the scope of the journal. Papers should address ecological questions that would be of interest to a worldwide readership of ecologists; papers of mostly local interest, including descriptions of flora and fauna, taxonomic descriptions, and range extensions will not be considered.