Population Dynamics of a Rare Species of Burrowing Shrimp Axianassa darrylfelderi Anker & Lazarus, 2015 in the Pérula Estuary, Jalisco, Mexico

IF 1.8 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY

Marine Ecology-An Evolutionary Perspective Pub Date : 2025-10-03 DOI:10.1111/maec.70053

Jocelyn Jasso, Ignacio Cáceres, Manuel Ayón-Parente

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Abstract

Axianassa darrylfelderi is a rare species of mud shrimp. Recently, it was discovered in the Mexican Central Pacific; therefore, it is exposed to the strong climate variability of this ecoregion. This study hypothesized that the population structure and dynamics of A. darrylfelderi are affected by variations in environmental conditions. The organisms were collected during 2014, 2015, and 2018—years that featured The Blob and El Niño Southern Oscillation events. The variables temperature, precipitation, and chlorophyll-α concentration did not strongly influence the structure and fecundity but did have a strong influence on the population dynamics. Individual growth was seasonal with slow phases in rainy periods; mortality was high and began at small sizes attributed to estuary runoff, while somatic production was supported by large and abundant organisms that have more stable burrows that require less maintenance. A. darrylfelderi presented similar parameters to other burrowing shrimp, and these vary due to the synergy of the environmental variables of each season.

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一种稀有穴居虾的种群动态，Anker & Lazarus, 2015 . psamrula Estuary, Jalisco, Mexico

沙虾是一种稀有的泥虾。最近，它在墨西哥中太平洋被发现；因此，它暴露在该生态区域强烈的气候变化中。本研究假设环境条件的变化会影响黄颡鱼种群的结构和动态。这些生物是在2014年、2015年和2018年收集的，这一年发生了Blob和El Niño南方涛动事件。温度、降水和叶绿素α浓度对群落结构和繁殖力影响不大，但对种群动态有较大影响。单株生长具有季节性，雨季生长缓慢；由于河口径流的影响，死亡率很高，而且从很小的规模开始，而体细胞生产则由大型和丰富的生物支持，这些生物有更稳定的洞穴，需要更少的维护。沙虾与其他穴居虾具有相似的参数，这些参数的变化是由于每个季节环境变量的协同作用。

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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.