亚马逊河羽毛息地塑造了西大西洋的浮游生物类动物群
Everton Giachini Tosetto1,2,3, Sigrid Neumann-Leitão3, Moacyr Araujo3,4
1Institut de Recherche pour le Développement, Sète, France.
PloS one
|August 25, 2023
概括
亚马逊河水创造了独特的海洋息地,有利于浮游生物. 这种淡水羽毛显著影响了沿海和开放海洋地区的物种丰富性和丰富性.
科学领域:
- 海洋生物学 海洋生物学
- 海洋学 海洋学 海洋学
- 生态生态学 生态生态学
背景情况:
- 亚马逊河淡水羽毛对浮游生物类动物的影响在很大程度上是未知的.
- 了解这些影响对于西大西洋的海洋生态系统动态至关重要.
研究的目的:
- 为了研究亚马逊河羽毛对浮游生物 cnidarian 社区的影响.
- 分析羽毛如何塑造海洋息地,并影响物种分布和丰度.
主要方法:
- 2012年10月,在西大西洋在巴西北部海岸附近进行了一次海洋学巡航.
- 数据收集的重点是物理海洋学条件和浮游生物类动物组合.
- 分析包括评估息地结构,包括地表层生产力和氧气最小区域.
主要成果:
- 亚马逊河水形成了一个独特的息地,其特点是薄薄的生产性地表层和更深的氧气最小区域.
- 浮游生物类动物群体在羽毛的影响下显示出更高的物种丰富性和丰富性,特别是在货架上.
- 在羽毛的外面,特定的物种,如水母鱼Liriope tetraphylla主导.
结论:
- 亚马逊河水是塑造西赤道大西洋中大尺度息地结构的关键因素.
- 这种息地结构显著地影响了浮游生物的组成和丰富性,在海底和海洋的两个省份.
相关概念视频
Diversity of Protists III
48
Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
48
Primary Production
23.7K
The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
23.7K
Diversity of Protists II
44
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
44
What is an Ecosystem?
39.8K
Overview
39.8K
Diversity of Protists I
35
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
35
Diversity of Protists IV
37
Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
37


