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The purpose of this research is to introduce the diversity of algal flora along the west coast of Maharashtra. The present study of seaweeds was conducted at west coast of Maharashtra formed of different inter-tidal rock shores with rich algal vegetation. During the study period (Aug 2015 to Feb 2016), total 73 species of seaweeds were recorded. An...
Citations
... The water lagoons, Chennai are recorded 25 species of seaweeds during the year 2014-2016 (Bhagyaraj and Kunchithapatham, 2016) [2] . The total number of 73 seaweeds species recorded in west coast, Maharashtra during a year 2015-2016 (Waghmode, 2017) [23] . [8] ) During September to November and December to February total 35 and 47 species of seaweeds reported respectively in veraval and sikka coast, Gujarat (Pathak et al,2020) [18,19] . ...
Research on regional marine seaweed diversity is the first step of the phycological research or studies. There is various research works reported on marine algal diversity and distribution from different states in India. Marine seaweeds are exposed during inter tidal activity in coast. Gujarat has a longest coastal area among all the states in India. Purpose for this current study is that a numerous species of marine-seaweeds-reported from the selected zones of Saurastra, Gujarat. The portion of marine-algae was recorded in the selected four sea coast zones i.e., Dwarka, Okha, Porbandar and Veraval. The study was carried out during April 2019 to December 2019. 21 species were recorded during this study period. Random sampling method was opted out for the study. The different species of Chlorophyceae, Phaeophyceae and Rhodophyceae observed and recorded.
... Similar green algal dominace was reported in Rameswaram to Kilakkarai region (Kalimuthu et al. 1984), Tuticorin region (Mary et al. 2013), Chennai and Rameswaram (Bhagyaraj and Kunchithapatham 2016), Muthupet estuary (Balakrishnan et al. 1988). Contrastingly, red algal dominance also reported in Gulf of Mannar coastal waters of Tamilnadu (Narasimman and Murugaiyan 2016), Dhanushkodi to Kanyakumari , Valinokkam and Kilakkarai , Tuticorin -Tiruchendur Coast (Chennubhotla et al. 1990;Kaliaperumal et al. 1995), four Southern districts of Tamilnadu (Anantharaman et al. 2010;Sahayaraj et al. 2014), Vembar to Tuticorin region (Ramao Rao et al. 1996), Tuticorin (Canciyal et al. 2014;Parthiban and Anantharaman 2018), Tuticorin to Kanyakumari (Kaliaperumal and Pandian 1984), Kanyakumari (Paul and Raja 2011), Ohka coast, Gujarat (Thakur et al. 2008;Nakar et al. 2011;Cheema et al. 2014), Maharashtra coast (Dhargalkar et al. 2001;Waghmode 2017), Andaman and Nicobar islands Palanisamy 2012). ...
A two-year study was conducted to analyze and document the seaweed diversity available along the intertidal zone of islands of the Gulf of Mannar Marine Biosphere Reserve from May-18 to October-19 with four-month intervals. From the five consequent surveys, 137 seaweed species belonging to 32 families and 17 genera were recorded in the Gulf of Mannar islands. Among 137 seaweed species, green algae (48) was the highest, followed by red (48) and brown (41) were observed. A comparative study among all three seasons revealed that a higher number of seaweed species and diversity indices were recorded in post-monsoon and monsoon seasons, whereas a lower value was recorded in summer months. 30 species were commonly found in the Gulf of Mannar Biosphere Reserve islands and 44 species are found with restricted occurrence. The genus Caulerpa appeared as the most diversified genera (18 species) followed by Sargassum (14 species), Dictyota (8 species), Gracilaria (6 species), Turbinaria (4 species), and Hypnea (6 species). While comparing all 19 islands, the maximum number of species recorded in Appa and Hare island (n = 76) and minimum species recorded in Manaliputti island (n = 25). There were 10 seaweed species abundantly present in all 19 islands. Dictyota dichotoma, Halimeda gracilis, Padina pavonica, Sargassum polycystum, Turbinaria ornata were common. Both the indices clearly pointed out greater seaweeds diversity in all the islands except Manaliputti island and higher diversity value indicated the healthy nature of the seaweed ecosystems and islands of the Gulf of Mannar Marine Biosphere Reserve.
Highlights
First attempt to systematic document of the seaweed diversity exclusively in inter-tidal region of islands of Gulf of Mannar Marine Biosphere Reserve
Analyse the healthy nature of seaweed diversity Gulf of Mannar Marine Biosphere Reserve
Analysing seasonal impact, seaweed dominance, succession pattern in inter-tidal region of islands of Gulf of Mannar Marine Biosphere Reserve
Data generated in this study may act as baseline information for effective coastal management
... Similar green algal dominace was reported in Rameswaram to Kilakkarai region (Kalimuthu et al. 1984), Tuticorin region (Mary et al. 2013), Chennai and Rameswaram (Bhagyaraj and Kunchithapatham 2016), Muthupet estuary (Balakrishnan et al. 1988). Contrastingly, red algal dominance also reported in Gulf of Mannar coastal waters of Tamilnadu (Narasimman and Murugaiyan 2016), Dhanushkodi to Kanyakumari , Valinokkam and Kilakkarai , Tuticorin -Tiruchendur Coast (Chennubhotla et al. 1990;Kaliaperumal et al. 1995), four Southern districts of Tamilnadu (Anantharaman et al. 2010;Sahayaraj et al. 2014), Vembar to Tuticorin region (Ramao Rao et al. 1996), Tuticorin (Canciyal et al. 2014;Parthiban and Anantharaman 2018), Tuticorin to Kanyakumari (Kaliaperumal and Pandian 1984), Kanyakumari (Paul and Raja 2011), Ohka coast, Gujarat (Thakur et al. 2008;Nakar et al. 2011;Cheema et al. 2014), Maharashtra coast (Dhargalkar et al. 2001;Waghmode 2017), Andaman and Nicobar islands Palanisamy 2012). ...
A two-year study was conducted to analyze and document the seaweed diversity available along the intertidal zone of islands of the Gulf of Mannar Marine Biosphere Reserve from May-18 to October-19 with four-month intervals. From the five consequent surveys, 137 seaweed species belonging to 32 families and 17 genera were recorded in the Gulf of Mannar islands. Among 137 seaweed species, green algae (48) was the highest, followed by red (48) and brown (41) were observed. A comparative study among all three seasons revealed that a higher number of seaweed species and diversity indices were recorded in post-monsoon and monsoon seasons, whereas a lower value was recorded in summer months. 30 species were commonly found in the Gulf of Mannar Biosphere Reserve islands and 44 species are found with restricted occurrence. The genus Caulerpa appeared as the most diversified genera (18 species) followed by Sargassum (14 species), Dictyota (8 species), Gracilaria (6 species), Turbinaria (4 species), and Hypnea (6 species). While comparing all 19 islands, the maximum number of species recorded in Appa and Hare island (n = 76) and minimum species recorded in Manaliputti island (n = 25). There were 10 seaweed species abundantly present in all 19 islands. Dictyota dichotoma, Halimeda gracilis, Padina pavonica, Sargassum polycystum, Turbinaria ornata were common. Both the indices clearly pointed out greater seaweeds diversity in all the islands except Manaliputti island and higher diversity value indicated the healthy nature of the seaweed ecosystems and islands of the Gulf of Mannar Marine Biosphere Reserve. Highlights
... Brown algae (Phaeophyta) are the second most abundant group and many genera such as Ascophyllum sp., Fucus sp., Laminaria sp., Turbinaria sp., and Sargassum sp. are used as biofertilizers or as soil conditioners to enhance plant growth and yield (Khan et al. 2009). Sargassum ilicifolium (Turner) C. Agardh is commonly reported from the coastal region of Maharashtra, India and is economically important with wide variety of phytochemicals (Waghmode 2017;Murugaiyan 2020;Nazarudin et al. 2020). Unlike other brown algae, S. ilicifolium SLE has not been explored for its biostimulating effect for medicinal plants under in vitro conditions. ...
The present study describes a simple, reproducible, and cost-effective regeneration system using seaweed liquid extract (SLE) of Sargassum ilicifolium supplemented in Murashige and Skoog (MS) medium for in vitro seed germination, multiple shoot and root induction, and plumbagin accumulation in P. zeylanica. High rate of seed germination and seedling length was recorded on ½ − MS + SLE (2%) which was 1.11- and 1.28-fold higher as compared to GA3 (2.89 µM). The best response in terms of explants producing maximum number of shoots was recorded on MS medium supplemented with 4% SLE that was 2.26- and 1.37-fold higher than BAP (3.33 µM) alone and in combination with IAA (4.28 µM), respectively. High frequency root induction and plumbagin accumulation was recorded on ½ − MS + 2.5% SLE which showed 1.34-, 1.49-, and 1.44-fold increase for the roots per shoots, average root length, and plumbagin, respectively when compared with IBA (6.15 µM). Besides being an alternative to commercially available PGRs, this is the first report demonstrating the potential of SLE for enhanced growth and plumbagin accumulation in P. zeylanica.
... Their diversity varies from zone to zone. The algae found in coastal region is dominated by Rhodophyta (Waghmode, 2017). ...
Abstract: Algal biodiversity is dynamic and varies a lot from
region to region, coast to coast and time to time. This biodiversity
and intertidal zonal distribution study was carried out at a small
coastal area away from the regular tourist zones near metropolitan
Mumbai area, at Bhuigaon in Palghar district of Maharashtra. The
study gives input in the distribution pattern of different division of
algae with respect to different intertidal zones of sea area. The
study indicated that the high tide zone and the middle tide zones of
the coastal rocky beach is the site of maximum algae occurrence
with 35 % and 40 % occurrence percentage. The study also
indicated this zone to be very rich in members of Rhodophyta as
total 8 genera are found to be present here. Enteromorpha, a
member of Chlorophyta was the only most frequent genera with a
frequency of 75%. It was observed that algae are very specific in
their occurrence at specific zones in the intertidal coastal area. As
many as 11 genera of total 15 had least frequency of 25% and
presence in only one of the zones specific for their growth and
development
... The Manapad coastal region is recorded with 20 seaweeds (Doss and Rukshana, 2016). During August 2015 to February 2016, a total of 73 seaweeds have been recorded in west coast of Maharashtra (Waghmode, 2017). Seaweeds are marine macro algae. ...
... The Manapad coastal region is recorded with 20 seaweeds (Doss and Rukshana, 2016). During August 2015 to February 2016, a total of 73 seaweeds have been recorded in which west coast of Maharashtra (Waghmode, 2017). Although the seaweeds have extensively been studied in India, several places which are rich in seaweeds are unexplored. ...
Seasonal variation of seaweed diversity was studied in Olaikuda and Vadakkadu, the two unexplored coastal areas in Rameshwaram Island in south coast of India. An extensive survey on seasonal changes of seaweed diversity was made study and the data were analyzed for different diversity indices. In each location, 3 transects at 100 m gap were taken and in each transect 10 quadrates, a total of 30 quadrates were taken for seaweeds diversity. The diversity data were analyzed with statistical methods such as graphical and statistical analysis K-dominance curve with software PRIMER package, cluster analysis, multivariate methods, anosim and diversity indices such as Shannon Weaver diversity index, Simpson species richness index, Fisher alpha index, Pielou's evenness, and taxonomic species diversity (delta) index were analyzed by using the software R statistic version 3.1.4. Package (vegan). Totally 74 species including 28 species of Chlorophyceae, 18 species of Phaeophyceae and 28 species of Rhodophyceae were recorded. The study areas are flourishing with 49-59 seaweed species. It is inferred that the seaweeds are well diversified seasonally except summer. The baseline data generated in this work will help in conservation of the seaweeds in the areas.
Abundance and occurrence of seaweeds were determined with respect to physico-chemical parameters of coastal waters along the Ratnagiri coast of Maharashtra state, India. Seaweeds were collected by random method from 5 sites of Ratnagiri coast, Maharashtra, India named Ganapatipule, Bhandarpule, Neware, Aare and Ware which are famous for their enduring environment and scenic views. Seaweeds attached and grown in the submerged rocks were collected in the low tide. The present study was conducted on these selected sea beaches formed of different intertidal rocky shores with diverse algal vegetation followed by the estimation of Physico-chemical parameters such as atmospheric temperature, water temperature, salinity, conductivity, turbidity, dissolved oxygen, Biochemical oxygen demand, chemical oxygen demand, sulphate, with the help of standard procedures. Diversity of seaweeds were studied to correlate the impact of seasonal variation of Physico-chemical parameters on their occurrence. This collection and estimation of physico-chemical parameters work was done monthly for the period of 8 months from May 2022 to December 2022. This sampling work was done seasonally i.e., pre monsoon, monsoon and post monsoon period. Diversity of 3 different varieties of seaweeds i.e., Chlorophyceae, Rhodophyceae and Pheophyceae has been recorded from 5 different selected study sites of Ratnagiri coast. There are a few areas on Maharashtra's west coast where there is a significant diversity of macroalgae, despite the region's increasing industrial pollution and habitat degradation. The overall parameters recorded were in the moderate range with respect to the present climatic conditions. Significant relations among the physico-chemical parameters and the seaweeds were found. The variation in the physico-chemical parameters and seasonal comparative phycology of mentioned study sites gives new insights into the correlation of climatic conditions with seaweeds diversity.
Seaweeds were collected by randomly from 5 selected sites of Ratnagiri coast, named Ganapatipule, Bhandarpule, Neware, Aare and Ware from Maharashtra, India, which are famous for their enduring environment and scenic views. The present study was conducted on these selected sea beaches formed of different intertidal rocky shores with diverse algal vegetation. This quantitative survey was carried out to determine seasonal impact on the occurrence of different seaweeds at selected study sites from the west coast of India from the state of Maharashtra. Seaweeds attached and grown in the submerged rocks were collected in the low tide. This collection work was done monthly for the period of 6 months from May 2022 to Dec 2022. This sampling work was done seasonally i.e., pre monsoon, monsoon and post monsoon period. Diversity of 3 different varieties of seaweeds i.e., Chlorophyceae, Rhodophyceae and Pheophyceae has been recorded from 5 different selected study sites of Ratnagiri coast. Maximum species diversity was recorded during post monsoon period than the other two periods at all study sites. There are a few areas on Maharashtra's west coast where there is a significant diversity of macroalgae, despite the region's increasing industrial pollution and habitat degradation. The seasonal comparative phycology of mentioned study sites gives new insights into the correlation of climatic conditions with seaweeds diversity.
India is one of the mega biodiversity countries, owing to its tropical location and warm climate. With more than 7500 km, India is blessed with a long coastline—one of the longest in the world. However, marine biodiversity remains poorly documented compared with that of terrestrial biodiversity. On top of it, the threats from climate change are imminent and have already started wreaking havoc on species diversity, for instance, ocean acidification causing coral bleaching in the atolls of the Laccadive Islands. A systematic approach to acquiring complete and exhaustive knowledge about marine biodiversity may help us understand the extent of anthropogenic damage and take appropriate actions and policies to prevent further loss. Currently, we merely know the tip of the global biodiversity iceberg; with merely 1.3 million species characterized yet, estimates suggest there might be around 9 million species of eukaryotes alone. Conserving biodiversity is crucial not only for ecosystem services but also for future generations as a possible revenue generator—the so called bequest value. This chapter reviews the status of marine biodiversity along India’s coasts, efforts on its economic utilization, and the impact of climate change.KeywordsBiodiversityDiversity indicesCoral miningSeaweedConservation strategy
