A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Balasubramanian, R.
- Brood Size of Seahorse, Hippocampus kelloggi, (Jordan and Snyder, 1909) in Cuddalore Coast, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608 502, Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 2 (2017), Pagination: 1-7Abstract
Background/Objectives: Seahorses are found worldwide in shallow coastal tropical and temperate seas. It is commercially used as medicinal purposes and they are increasing the demand 20 % per year. The low fecundity and structural patterns are leads to limited production of seahorses. The reproductive approach of seahorses, the female deposit their eggs into the male brood pouch where fertilization takes place.
Methods/Statistical Analysis: The samples after collection were preserved in 5% formalin and later dissected the brood pouches with ventral side near the base of the abdominal and middle region of tail were carefully opened and were collected the young ones.
Findings: BPSI is increased corresponding to the development of embryos and decreased after the release of the young ones. The young ones ranged from 650 to 5750 in the size range 160 -299 mm (SL). Hippocampus kelloggi was found to accommodate an average of 2696 young ones in its brood pouch.
Application/Improvements: In 1995, it was conservatively estimated that as many as 20 million seahorses were caught for their use in Traditional Medicine (TM) and this trade is thought to be unsustainable. Besides, anthropogenic, industrial, domestic and other disturbances to the habitat caused severe damage to seahorse population. The decline of these species is great concern in the light of global exploitation of seahorses. The brood size aspect must be showed to know the production and survival of the seahorses. This is lead to avoid over exploitation of seahorses. Hence, the present study has been carried out the brood size of seahorse H. kelloggi.
Keywords
Seahorses, Brood Pouch, Hippocampus Kelloggi.Full Text
References
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- R.L. Teixeira, J.A. Musick. Reproduction and food habits of the lined seahorse, Hippocampus erectus (Teleostei: Syngnathidae) of Chesapeake Bay, Virginia. Brazilian Journal of Biology. 2001; 61(1), 79-90.
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- Distribution of Polychaete Species in Uppanar Estuary, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502 Tamil Nadu, IN
2 Deportment of Zoology, Annamalai University, Annamalai Nagar - 608 002 Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 3 (2017), Pagination: 1-5Abstract
Background/Objectives: Macrobenthos are of special interest because of them are sessile or have a limited mobility and thus directly depend on environment conditions. They are showings marked response to environmental changes depending on their specific sensitivity and tolerance level. Among the macrobenthic forms, the polychaetes are dominant group which are important food source for higher trophic levels of most estuarine and near shore environment. Methods/Statistical Analysis: Sediment samples were collected from Uppanar estuary, Cuddalore coast for a period of one year from Jan’ 2011 – Dec’ 2011 to collect and analyze the distribution and diversity of polychaete species during the study period. Findings: The distribution and diversity of polychaete species, the total numbers of 36 species were recorded belonging to 19 families during the study period in this station. The maximum 32 species of polychaetes were recorded in summer and minimum of 23 species were recorded at monsoon. Among them five species of polychaetes (Capitella capitata, Nereis virens, Polydora ciliata, Perinereis cultrifera and Glycera Alba) were dominated in all the seasons. Application/Improvements: They are playing an important role in ecosystem process such as nutrient cycling, pollutant metabolism and dispersion. They are also considering as an important secondary production of among the macrobenthos. Polychaetes are also play a important role of pollution indicator.Keywords
Uppanar estuary, Sediments, Polychaete species, Distribution, Diversity.Full Text
References
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- Fecundity of Seahorse, Hippocampus Kelloggi, (Jordan and Snyder, 1902) in Cuddalore Coast, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608 502, Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 3 (2017), Pagination: 1-6Abstract
Background/Objectives: Commercial demands for seahorses, mainly for medical purposes, are increasing by 20% per year. Seahorses are found worldwide in shallow coastal tropical and temperate seas. The reproductive behaviour of seahorses, found the females to deposit pear-shaped eggs in the male brood pouch where fertilization takes place. The dwarf seahorse, H. zosterae to form monogamous pair every morning until copulation takes place.
Methods/Statistical Analysis: The collection was made from Cuddalore coast on monthly basis over the period of one year (October 2000 to September 2001). The samples after collection were preserved in 5% formalin and later dissected along latero-ventral side near the abdominal region and the gonads were removed carefully. Ovaries were preserved in modified Gilson’s fluid and ova diameter measurements were made from ovaries. For fecundity estimation, only stage V ovary was taken into consideration. Fecundity was estimated by the gravimetric method of various maturity stages.
Findings: The fecundity of the seahorse was calculated in the animals having stage V (mature) ovary only. The number of eggs varied from 850 to 18,950 in the size range 156 - 296 mm (SL). The average fecundity of H. kelloggi observed in the present study was 6638.2 eggs.
Application/Improvements: It is particularly used as ingredients in traditional medicine, particularly in Southeast Asia where Traditional Chinese Medicine. The decline of these species is great concern in the light of global exploitation of seahorses. The fecundity aspect must be established to know the production and survival of the seahorse species and with effective conservation measures can be applied to target organisms. Hence, the present study has been carried out the fecundity of seahorse H. kelloggi.
Keywords
Seahorses.Full Text
References
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- Seasonal Influence on Physico-Chemical Properties of Coastal Waters in Nagapattinam, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502, Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 9 (2017), Pagination: 1-6Abstract
Background/Objectives: Near shore or coastal water bodies are important sources of marine environment. Water is inevitable properties for the living being. Water quality assessment is important in understanding biological phenomena of coastal zone.
Methods/Statistical analysis: Water and sediment samples were collected from Nagapattinam coastal water at monthly interval from July’ 2016 – June' 2017 to analyze various physico-chemical parameters in water and sediments.
Findings: The water temperature values ranged from 22°C to 32°C. Salinity ranged from 28ppt to 35ppt. The pH values ranged from 7.6 – 8.2. DO values varied from 4.1 ml L-1 to 5.2ml L-1. The water nutrient concentrations observed as: NO2:0.96 – 4.509 μg L-1, NO3:0.603 μg L-1 to 2.498 μg L-1, TN: 6.004 – 14.52 μg L-1, IP: 0.398 – 1.0198 μg L-1 and TP: 0.516 – 2.127 μg L-1 were recorded respectively. The nutrient concentration observed in sediment ranged from TN, 5.408 μg L-1 – 13.918 μg L-1, TP, 7.54 μg L-1 – 16.872 μg L-1 TOC, 6.68 μg L-1 – 13.882 μg L-1 respectively.
Application/Improvements: Physico-chemical variations of water are accountable for the aquatic organisms. Which is interactive with physical, chemical and biological processes of the coastal ecosystem for sustain life. The nutrients provide the potential fertility for water masses and it is necessary to collect the data for their distribution. Hence, the present work has been carried out the physico-chemical characteristics of Nagapattinam coastal waters in Tamil Nadu, India.
Keywords
Water, Sediments, Physical Parameters, Nutrients, Coastal Zone.Full Text
References
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- M. Rajkumar, J. SeshSerebiah, G.A. Thivakaranngar. Seasonal variations in physic-chemical characteristics of water, sediment and soil texture in arid zone mangroves of Kachchn-Gujarat. Journal of Environmental Biology. 2008; 29, 725-732.
- J. Rani, Anita Kannagi, V. Shanthi. Correlation of total heterotrophic bacterial load in relation with hydrographical features of Pazhayakayal estuary, Tuticorin, India. Journal of Environmental Biology. 2012; 33(4), 769-773.
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- Distribution of Nematodes in Karaikkal Coastal Waters, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502 Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 9 (2017), Pagination: 1-5Abstract
Background/Objectives: Nematodes are considered as most dominant meiofaunal group in marine benthic habitats. They are an account on 70–90% in marine sediments, where they play fundamental ecological roles. Nematodes are particularly sensitive to changes in environmental parameters and thus useful in assessing the environmental disturbances.
Methods/Statistical analysis: Sediment were collected from Karaikkal coastal waters for a period of one year from July’ 2016 – June 2017 to collect the nematodes.
Findings: the present study was carried out the distribution and diversity of nematodes in Karaikkal coastal waters during July 2016 – June 2017. The total numbers of 31 nematodes species were recorded during the study period. All the species were recorded in summer and minimum of 16 species were found at monsoon. Among them, 7 species of nematodes were (Daptonema conicum, D. hirsutum, D. angulatum, Theristus sp. T. agillis, Vicosia sp. and Vicosia viscosia) dominated in all seasons.
Application/Improvements: They are involved in energy transfer through the ecosystem and are important link between primary producers and higher tropic levels in benthic systems. Even its contributions are very high in the aquatic environment and it is very limited works are available on distribution of marine nematode in Indian sub-continents.
Keywords
Nematodes, Domestic Wastages, Water Quality.Full Text
References
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- M. Prasannakumar, P.C. Ranjan. Physico chemical properties of water collected from Dharma estuary. International Journal of Environmental Science. 2010; 1(3), 334-342.
- A. Archana, K.R. Babu. Seasonal variations of physic-chemical parameters in coastal waters of Visakapatnam. Middle-East Journal of Scientific Research. 2013; 14(2), 161-167.
- M.V. Vincy, B. Rajan, P.A.P. Kumar. Water Quality Assessment of a Tropical Wetland Ecosystem with Special Reference to Backwater Tourism, Kerala, South India. International Research Journal of Environmental Sciences. 2012; 1(5), 62-68.
- J.S.I. Rajkumar, J.M.C. Milton, T. Ambrose. Seasonal variation of water quality parameters in Ennore estuary with respect to industrial and domestic sewage. International Journal of Current Research. 2011; 33(3), 209– 218.
- J. Rani, A. Kannagi, V. Shanthi. Correlation of total heterotrophic bacterial load in relation with hydrographical features of Pazhayakayal estuary, Tuticorin, India. Journal of Environmental Biology. 2012; 33(4), 769-773.
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- M. Ellis. Detection and measurement of stream pollution. United States Fish Commission Bulletins. 1937; 22, 367-437.
- E. Padmini, B.V. Geetha. A comparative seasonal pollution assessment study on Ennore estuary with respect to metal accumulationin the grey mullet Mugi cephalus. Oceanological and Hydrobiological Studies. 2007; 34(4), 91-103.
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- G. Chinnadurai, O.J. Fernando. Impact of mangrove leaves on meiofaunal density: an experimental approach. The ICFAI Journal of Life Sciences. 2007 ; 1(1), 62-70.
- J.G. Frederick, N.J. Maciolek. Deep-sea species richness; regional and local diversity estimates from quantitative bottom-sampling. The American Naturalist. 2000; 139(3), 13-41.
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- Changes of Physico-Chemical Parameters Due to the Seasonal Influence of Coastal Waters in Karaikkal Coast, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502, Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 9 (2017), Pagination: 1-6Abstract
Background/Objectives: Coastal waters are involving the dynamic process of marine environment. The physico-chemical parameters of water and sediment provide base for all life process of the living organisms. It is desirable factors to make an effective environment. Hence, the present work has been carried out the physico-chemical characteristics of Karaikkal coastal waters.
Methods/Statistical Analysis: Samples of water and sediment were collected from Karaikkal coastal waters for a period of one year from July’ 2016 – June 2017 to analyze various physico-chemical parameters in water and nutrient in sediments.
Findings: The maximum concentration of organic materials were received from the catchment area during monsoon season due to rainfall and fresh water inflow, etc. This trend of large amount of total organic carbon in sediment during monsoon could be attributed to the effluent discharge.
Application/Improvements: The amount of nutrients determines the potential fertility of the water masses and thus it is necessary to collect several data regarding their distribution and behavior in many coastal ecosystem.
Keywords
Coastal Water, Sediments, Physical Parameters, Nutrients.Full Text
References
- Z.A. Ansari, M.U. Ganus. A quantitative analysis of fine scale distribution of area, Parakkani, Tamil Nadu. International Journal of Environmental Science. 1996; 1(6), 2-10.
- A. Archana, K.R. Babu. Seasonal variations of physic-chemical parameters in coastal waters of Visakapatnam. Middle-East Journal of Scientific Research. 2013; 14(2), 161-167.
- C. Palpandi. Hydrobiological parameters, population density and distribution pattern in the gastropod Nerita (dostia) crepidularia Lamarck, 1822, from mangroves of Vellar estuary, Southeast India, International Journal of Biodiversity and Conservation. 2011; 3(4), 121-130.
- G. Chinnadurai, O.J. Fernando. Impact of mangrove leaves on meiofaunal density: an experimental approach. The ICFAI Journal of Life Sciences. 2007 ; 1(1), 62-70.
- M. Ellis. Detection and measurement of stream pollution, United States Fish Commission Bulletins. 1937; 22, 367-437.
- P. Fauvel. The fauna of India including Pakistan, Ceylon, Burma and Malaya. The Indian Press. 1953; 1-507.
- J.G. Frederick, N.J. Maciolek. Deep-sea species richness; regional and local diversity estimates from quantitative bottom-sampling. The American Naturalist. 2000; 139(3), 13-41.
- S.N. Harkantra, A. Nair, Z.A. Ansari, A.H. Parulekar. Benthos of the shelf region along the west coast of India. Indian Journal of Marine Sciences. 1980; 9, 106-110.
- A.C. Harriague, G. Albertelli, C. Misic. Macro and meiofaunal community features in the critical environmental system of a tourist harbour (Rapallo, Ligurian Sea, NW Mediterranean). Marine Environmental Research. 2012; 74, 64-72.
- C. Heip, M. Vincx, G. Vranken. The ecology of marine nematodes. Oceanogr. Marine Biology: An Annual Review. 1985; 23, 259-263.
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- Seasonal Occurrence of Distribution and Diversity of Polychaete in Nagapattinam Coastal Water, Southeast Coast of India
Authors
1 Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai – 608 502 Tamil Nadu, IN
Source
Indian Journal of Innovations and Developments, Vol 6, No 9 (2017), Pagination: 1-4Abstract
Background/Objectives: Tropical coastal areas are characterized by dynamic seascapes which encompass interconnected ecosystems such as wet land, mangroves, sea grass beds and corals. These ecosystems provides are highly productive, aquatic and terrestrial biodiversity as well as for the functioning of economic sectors such as tourism and fisheries. The near shore waters are exhibiting the seasonal variations. Fresh water inflow is influence the nutrient cycle in environments.
Methods/Statistical analysis: The sediment samples was collected in Nagapattinam coastal waters from July’ 2016 – June 2017 to collect the polychaete and analyze the species distribution.
Findings: The total numbers (nos) of 80123 nos/ m² were distributed in this station. The total numbers of 42 polychaete species were recorded during the study period. All the 42 species were recorded in summer and minimum of 21 species were recorded at monsoon. Among them 9 species of polychaetes (Capitella capitata, Nereis virens, Polydora ciliata, Perinereis cultrifera, Eunice tentaculata, Terebellides stroemi, Amphinome rostrata, Syllis gracilis and Glycera alba) were dominated in all seasons.
Application/Improvements: Benthic macrofauna play an important role in the coastal ecosystems such as scavenging, biological indicator, nourishment and nutraceutical values for fin and shell fishes. Among this, the Polychaetes are predominant group among the macro-benthic forms. They are also often used as live feed for aquaculture industry and also bio-prospecting.
Keywords
Sediments, Polychaetes, Distribution, Diversity, Season.Full Text
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