scholarly journals Different Stages of Aquatic Vegetation Succession Driven by Environmental Disturbance in the Last 38 Years

Water ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1412 ◽  
Author(s):  
Hongwei Yu ◽  
Weixiao Qi ◽  
Chunhua Liu ◽  
Lei Yang ◽  
Ligong Wang ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Aquatic Plants ◽  
Aquatic Plant ◽  
Aquatic Vegetation ◽  
Transition Period ◽  
Vegetation Succession ◽  
Distribution Area ◽  
Pioneer Species ◽  
Eutrophic Lakes

In recent years, investigating the trend of aquatic plant diversity in response to different disturbance events has received increasing interest. However, there is limited knowledge of the different stages of aquatic vegetation succession over a long period in eutrophic lakes. In this study, we analyzed aquatic plant species richness and its relation to the physical and chemical characteristics of water in Chenghai Lake for the period of 1980–2018. This study shows that the richness and distribution of aquatic vegetation in Chenghai Lake are related to chlorophyll-a concentration, dissolved nutrients, base cations, and micronutrients. The results show that the long-term succession of aquatic plants in this lake classified in different stages: (I) A peak in species richness occurred at an intermediate stage that lasted from 1980 to 1992, and this was caused by more aquatic species being able to coexist since the competition for resources was lower; (II) after 26 years of secondary succession (1992–2018), the diversity and distribution area of aquatic plants gradually declined because pioneer species or human activities may have altered habitat conditions to render habitats less beneficial to pioneer species and more suitable for new aquatic plant species. Thus, species diversity and growth performance of aquatic plants in their communities may be useful indicators of Chenghai Lake’s trophic status, especially during the transition period from a mesotrophic lake to a eutrophic one.

scholarly journals Terrestrial Morphotypes of Aquatic Plants Display Improved Seed Germination to Deal with Dry or Low-Rainfall Periods

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 741
Author(s):  
Rocío Fernández-Zamudio ◽  
Pablo García-Murillo ◽  
Carmen Díaz-Paniagua
Keyword(s):  
Seed Germination ◽  
Plant Species ◽  
Aquatic Plants ◽  
Aquatic Plant ◽  
Population Persistence ◽  
Temporary Ponds ◽  
Percent Germination ◽  
Plant Assemblages ◽  
Viable Seeds

In temporary ponds, seed germination largely determines how well aquatic plant assemblages recover after dry periods. Some aquatic plants have terrestrial morphotypes that can produce seeds even in dry years. Here, we performed an experiment to compare germination patterns for seeds produced by aquatic and terrestrial morphotypes of Ranunculus peltatus subsp. saniculifolius over the course of five inundation events. During the first inundation event, percent germination was higher for terrestrial morphotype seeds (36.1%) than for aquatic morphotype seeds (6.1%). Seed germination peaked for both groups during the second inundation event (terrestrial morphotype: 47%; aquatic morphotype: 34%). Even after all five events, some viable seeds had not yet germinated (terrestrial morphotype: 0.6%; aquatic morphotype: 5%). We also compared germination patterns for the two morphotypes in Callitriche brutia: the percent germination was higher for terrestrial morphotype seeds (79.5%) than for aquatic morphotype seeds (41.9%). Both aquatic plant species use two complementary strategies to ensure population persistence despite the unpredictable conditions of temporary ponds. First, plants can produce seeds with different dormancy periods that germinate during different inundation periods. Second, plants can produce terrestrial morphotypes, which generate more seeds during dry periods, allowing for re-establishment when conditions are once again favorable.

scholarly journals Florida Native Aquatic Plants for Ornamental Water Gardens

EDIS ◽  
1969 ◽  
Vol 2005 (2) ◽  
Author(s):  
Eva C. Worden ◽  
David L. Sutton
Keyword(s):  
Plant Species ◽  
Aquatic Plants ◽  
Aquatic Plant ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
Publication Date ◽  
Original Publication ◽  
Terrestrial Plants ◽  
University Of Florida ◽  
Growing Conditions

Water gardening is increasing in popularity in ornamental landscapes across the country. Ornamental aquatic plants can be grown in small ponds and in containers on the patio or in the yard. Many water-tight containers of many sizes and shapes are available for displaying ornamental aquatic plants. Water gardens provide additional, attractive features to landscapes not available with terrestrial plants. An aquatic plant palette of considerable variety is available for water gardens in Florida (Table 1). The abundance of sunshine and warm temperatures provides ideal growing conditions for many aquatic plant species. This document is ENH988, one of a series of the Environmental Horticulture Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date February 2005. 

scholarly journals Inventarisasi Tumbuhan Akuatik Berpotensi Fitoremediator Air Limbah Industri di Waduk Bunder Gresik

2021 ◽  
Vol 5 (2) ◽  
pp. 68-73
Author(s):  
Muhammad Badrut Tamam ◽  
Aisyah Hadi Ramadani ◽  
Eti Mihatul Maflahah Halma ◽  
Chandra Tri Uliana Sari
Keyword(s):  
Plant Species ◽  
Research Design ◽  
Aquatic Plants ◽  
Industrial Waste ◽  
Aquatic Plant ◽  
Organic Waste ◽  
Plant Inventory ◽  
Inorganic Waste ◽  
Subjective Estimates ◽  
Descriptive Qualitative

The Bunder Reservoir Ecosystem is composed of various components, both biotic and abiotic. One of the components contained in the reservoir is aquatic plants as phytoremediator for wastewater. The aquatic plant inventory in the Bunder Reservoir aims to determine the diversity of aquatic plant species that have the potential to phytoremediate industrial waste. The research design was descriptive qualitative exploratory. Aquatic plant species were collected using a subjective estimates method with visual techniques. In the waters of the Bunder Reservoir, 17 species of aquatic plants from 13 families were found, including 11 emergent types, 1 free floating, 4 rooted floating, and 1 submersed. Types that have the potential to act as phytoremediators for inorganic waste in the metal categories are A. philoxeroides, A. sessilis, Cyperus sp. Hygrophila sp., I. carnea, I. aquatic, L. perpusilla, N. nucifera, Nymphaea sp., N. indica, P. barbata, and T. latifolia. The aquatic plant that has the potential for phytoremediator of pesticide waste is L. adscenden. While S. sesban tends to remove oil pollutants. Organic waste degrading species consist of T. latifolia, L. perpusilla, I.aquatica, Cyperus sp., And Brachiaria sp

scholarly journals Conservation, Phytoremediation Potential and Invasiveness Status of Bali Botanic Garden Aquatic Plant Collection

2020 ◽  
Vol 5 (1) ◽  
pp. 16
Author(s):  
Farid Kuswantoro
Keyword(s):  
Heavy Metal ◽  
Plant Species ◽  
Aquatic Plants ◽  
Aquatic Plant ◽  
Iucn Red List ◽  
Scientific Data ◽  
Botanic Garden ◽  
Alien Plant ◽  
Invasive Alien Plant ◽  
Plant Collection

Bali Botanic Garden (BBG) aspires to conduct conservation and research of eastern Indonesian plant species, including the aquatic plant species. These were important as aquatic plant species could be ecologically threatened, beneficial or even dangerous. As scientific data of BBG aquatic plant species collection was limited, we proposed this study to provide researchers and garden managers with data to conduct research, collection and maintenance of the garden aquatic plant collection. The study was carried out by sourcing list of BBG collected plant species data for its aquatic plant species. Literatures study was then carried out to gain information regarding the plant species’ heavy metal phytoremediation, conservation and invasiveness status while data analysis was conducted descriptively. The study result showed that 38 collection numbers of aquatic plant species collected in BGG were placed in five sites within the garden with 94% of all the aquatic plants collection came from Lesser Sunda Islands. Eleven aquatic plants species were listed as Least Concern by IUCN Red List. Fourteen species of collected aquatic plants were proved to possessed phytoremediation potential toward numerous heavy metal pollutants, while six species were listed as an invasive alien plant species in Indonesia. All of the provided data should be enabled the botanic garden stakeholders to come up with ideas in the research and maintenance effort of BBG aquatic plant collection.

Impacts of Heavy Metals on Higher Aquatic Plant, Diatom and Benthic Invertebrate Communities in the Niagara River Watershed near Welland, Ontario

1990 ◽  
Vol 25 (2) ◽  
pp. 131-160 ◽  
Author(s):  
M.D. Dickman ◽  
J.R. Yang ◽  
I.D. Brindle
Keyword(s):  
Species Richness ◽  
Point Source ◽  
Aquatic Plants ◽  
Benthic Invertebrates ◽  
Aquatic Plant ◽  
Heavy Metal Contamination ◽  
Dry Weight ◽  
Distribution Patterns ◽  
Benthic Invertebrate ◽  
Control Site

Abstract Nickel, chromium, zinc and lead were 60 to 500 times more concentrated in the sediments downstream of the Atlas Specialty Steels Co. than they were in the sediments of the upper Welland River or in the nearby Lyon’s Creek. These metals reached concentrations of 4,900 mg kg−1 dry weight (ppm) of nickel versus 10 ppm upstream, 890 versus 5 ppm lead, 1,050 versus 30 ppm zinc and 5,120 verses 10 ppm chromium. Changes in higher aquatic plant species composition and relative abundance downstream of the Atlas Specialty Steels Co. were plotted as a function of the downstream distance (800 m) from the point source discharge of the company. Four zones in the distribution patterns of aquatic plants were recognized. In the first zone (0–10 m from the point source) benthic invertebrates and aquatic plants were absent. In zone 2 (10–15 m from the point source) pollution tolerant benthic invertebrates such as sludge worms and blood worms as well as pollution tolerant long stemmed emergent macrophytes such as bulrushes and cattails first appeared. Further downstream (15–120 m from the point source), short stemmed macrophytes became abundant and benthic invertebrate diversity and density began to increase (zone 3). Only in zone 4 (120–800 m from the point source) did submersed macrophytes first appear and benthic invertebrates such as isopods, snails and leeches became established. Sites where sediments displayed the highest levels of heavy metal contamination displayed low species richness and low benthic invertebrate densities. These same sites displayed the highest proportions of pollution tolerant chironomid genera such as Procladius cf. bellus and Phaenopsectra flavipes and the highest percentage of pollution tolerant diatoms such as Nitzschia hantzschia and N. palea. Chironomid density was significantly lower below the point source (19 individuals m−2 versus 162 individuals m−2 upstream) as was species richness (11 versus 20 species, P < 0.05). A similar pattern was evident for other benthic invertebrates as well as epipelic diatoms (15 vs. 34 species). In addition, the frequency of chironomid deformities was significantly higher at the downstream site than at the upstream “control” site (27% vs. 9%).

scholarly journals Autonomous Robotics for Identification and Management of Invasive Aquatic Plant Species

2019 ◽  
Vol 9 (12) ◽  
pp. 2410 ◽  
Author(s):  
Maharshi Patel ◽  
Shaphan Jernigan ◽  
Rob Richardson ◽  
Scott Ferguson ◽  
Gregory Buckner
Keyword(s):  
Plant Species ◽  
Weed Management ◽  
Aquatic Plant ◽  
Aquatic Vegetation ◽  
Chemical Exposure ◽  
Ecological Impacts ◽  
Aquatic Weed ◽  
Vegetation Control ◽  
Invasive Aquatic Plant ◽  
Distribution Mapping

Invasive aquatic plant species can expand rapidly throughout water bodies and cause severely adverse economic and ecological impacts. While mechanical, chemical, and biological methods exist for the identification and treatment of these invasive species, they are manually intensive, inefficient, costly, and can cause collateral ecological damage. To address current deficiencies in aquatic weed management, this paper details the development of a small fleet of fully autonomous boats capable of subsurface hydroacoustic imaging (to scan aquatic vegetation), machine learning (for automated weed identification), and herbicide deployment (for vegetation control). These capabilities aim to minimize manual labor and provide more efficient, safe (reduced chemical exposure to personnel), and timely weed management. Geotagged hydroacoustic imagery of three aquatic plant varieties (Hydrilla, Cabomba, and Coontail) was collected and used to create a software pipeline for subsurface aquatic weed classification and distribution mapping. Employing deep learning, the novel software achieved a classification accuracy of 99.06% after training.

ASSESSMENT OF AQUATIC ECOSYSTEM STATUS USING MACROPHYTE SPECIES AS KEY TOOLS INDICATOR FOR HEAVY METAL POLLUTION

2015 ◽  
Vol 77 (30) ◽  
Author(s):  
Rashidi Othman ◽  
Ruhul Izzati Shaharuddin ◽  
Zainul Mukrim Baharuddin ◽  
Khairusy Syakirin Has-Yun Hashim ◽  
Mohd Shah Irani Hasni
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Fresh Water ◽  
Plant Species ◽  
Aquatic Plants ◽  
Water Samples ◽  
Aquatic Plant ◽  
Water Bodies ◽  
Macrophyte Species ◽  
Freshwater Bodies

Aquatic plants or macrophytes are beneficial to fresh water bodies because they produce oxygen, which assists with overall fresh water bodies functioning, and provide food and shelter for aquatic living organisms. A lack of aquatic plants in a freshwater bodies system where they are expected to occur may suggest a reduced population of macro and micro fauna. In addition, the absence of macrophytes may also indicate water quality problems as a result of excessive turbidity, herbicides, or salinization. However, an over abundance of macrophytes can result from high nutrient levels and may interfere with freshwater bodies processing, recreational activities and detract from the aesthetic appeal of the system. In this study, sixteen water samples were collected from four different places (Selangor, Perak, Pahang and Kelantan) where six different macrophytes species were abundance and dominant. All the water samples were analyzed by using Atomic absorption spectroscopy (AAS) for six types of heavy metals which are iron (Fe), lead (Pb), copper (Cu), zinc (Zn), nickel (Ni) and manganese (Mn). All six different macrophytes species which are Eichhorniacrassipes, Hydrillaverticillata, Cabombafuscata, Salvinianatans, Nelumbonuciferaand Pistiastratiotesexhibiting highly significant differences (P< 0.0001) between aquatic plant species widespread, locations and the heavy metals content. This clearly demonstrates that freshwater environment with abundance of invasive macrophyte species can have an important influence and indication on the accumulation of heavy metals content. The importance of the interaction components emphasises that the changes in heavy metals composition are complex and the responses are not consistent across all aquatic plant species. Examination of the summarised data revealed that, of the 6 macrophyte species analysed at all different locations, all exhibits as potential ecological indicator for unhealthy aquatic ecosystems or as phytoindicator for heavy metal contaminants either at low or high level contamination. Therefore, macrophyte is an effective tool in responding heavy metal in low level environmental contamination that might otherwise be difficult to detect.

scholarly journals Preliminary taxonomic survey of aquatic plants of Feni district, Bangladesh

2020 ◽  
Vol 27 (1) ◽  
pp. 103-111
Author(s):  
Mohammad Zashim Uddin ◽  
Joton Chandra Pal
Keyword(s):  
Plant Species ◽  
Aquatic Plants ◽  
Aquatic Plant ◽  
Ex Situ Conservation ◽  
Ex Situ ◽  
Plant Taxon ◽  
Oenanthe Javanica ◽  
Ecological Habitats ◽  
Good Number

Preliminary taxonomic survey of aquatic plants of Feni district was conducted between July 2016 and June 2017. Traditional taxonomic techniques and random meander methods were applied to record and collect aquatic plant species. A total of 56 aquatic plant species under 29 families were recorded from Feni district. Ecological habitats of aquatic plant species showed variations. Among them, 30% species prefer to grow near the edge of water, 20% as rooted submerged, 18% as rooted emergent, 16% as free floating, 12% as rooted floating and 4% surface creeper in the aquatic habitat. The uses of aquatic plants were showed that 27% species were used as fodder, 14% as medicinal, 11% as vegetable, 11% as edible fruits, 5% as duck weeds, 2% as artifacts and 30% as others purposes in the study area. Abundance of aquatic plant species in the habitat was showed variations. Among them 9% was found very abundant, 30% found common and 61% found rare in the study area. Based on the field observations and discussion with local people we were able to identify a good number of threats to aquatic plants and also pointed out some conservation measures for them. It was seemed that the species Achyranthes aquatica (thuash), Oenanthe javanica (painnaadani), and Chumannianthus dichotomus (patipata) were found to be limited in distribution outside Feni. These rare species need to be given priority for in situ and ex situ conservation. Bangladesh J. Plant Taxon. 27(1): 103-111, 2020 (June)

scholarly journals Is catchment geodiversity a useful surrogate of aquatic plant species richness?

2019 ◽  
Vol 46 (8) ◽  
pp. 1711-1722 ◽  
Author(s):  
Maija Toivanen ◽  
Jan Hjort ◽  
Jani Heino ◽  
Helena Tukiainen ◽  
Jukka Aroviita ◽  
...  
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Aquatic Plant ◽  
Plant Species Richness
Sign in / Sign up

Export Citation Format

Share Document