Seema Langer

Seema Langer
University of Jammu · Department of Zoology

Ph.D.

About

87
Publications
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Introduction
Seema Langer currently works at the Department of Zoology , University of Jammu. Seema does research in Zoology. Their current project is the taxonomic characterisation of freshwater prawns, crabs and isopod crustaceans. Also working on Paragonimiasis in crab eating populations of Jammu

Publications

Publications (87)
Article
Crustaceans are distributed world-wide and are found in a variety of habitats. Freshwater crabs constitute one-fifth of the brachyurans all over the world. Freshwater crabs are the eminent indicators of good water quality. The present study was carried out with an aim to assess the influence of various physico-chemical parameters such as temperatur...
Article
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Freshwater molluscs face extreme threat due to anthropogenic stress which is reflected in their changing population structure over time. The extent of this phenomenon needs to be monitored and proper management of freshwater ecosystem should be done. In the present communication, an approach was undertaken to study the effect of ten different physi...
Article
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Maydelliathelphusa masoniana Henderson 1893 is a Gecarcinucid crab found in various water bodies of Jammu region, wherein the population structure, growth parameters and effect of rainfall on the recruitment of juveniles have been studied. A total of 437 crabs were sampled randomly on monthly basis between October 2017 and September 2019, of which...
Article
The study was conducted during September 2018-August 2019 to study the digenetic trematode infection in fresh water fishes of some of the water bodies viz. Gho-manhasan, Chakrali and Chadwal of Jammu region of J&K union territory. A total of 220 fishes comprising Ophiocephalus punctatus and Xenentodon cancila belonging to families Channidae and Bel...
Article
The genus Macrobrachium, despite having immense nutritional, medical, and ornamental importance, is least explored cytogenetically. One of its species M. kistnense from J&K is an eligible candidate for commercial culturing and can enhance the dietary protein content and economic standard of local inhabitants. There is no previous record of chromoso...
Article
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Genus Erpobdella (Family Erpobdellidae) comprises of freshwater predatory leeches, characterized by the presence of multiple testis sacs per somite, eyes arranged in two groups, presence of preatrial loops, location of gonopores in somite XII and lacking pharyngeal stylets. Despite being subjected to phylogentic analysis many a times, its taxonomic...
Article
Global reduction in wildlife populations together with rising incidences of hormone-related disorders in humans are principally linked to chemicals that cause alterations in the endocrine system. The use of chemicals exhibiting hormonal disrupting properties has been significantly increased in the industrial, agriculture, and pharmaceutical sectors...
Article
Macrobrachium dayanum is one of the most nutrient rich and economically important prawn species found in Chenab and Ravi rivers, the most important rivers of Northern Himalayan river system. An approach was undertaken to explore the intraspecific variations among different populations of M. dayanum from three different rivers Gho Manhasa stream (Ch...
Article
Present study encompasses the taxonomic characteristics of a freshwater predatory leech, and variations in its Erpobdella bhatiai population density in relation to various physico-chemical attributes of habitat. A comparison of its morpho-taxonomic characters with other congeneric species has been done. A detailed and close examination of about 30-...
Article
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Present study encompasses the taxonomic characteristics of a freshwater predatory leech, and variations in its Erpobdella bhatiai population density in relation to various physico-chemical attributes of habitat. A comparison of its morpho-taxonomic characters with other congeneric species has been done. A detailed and close examination of about 30-...
Chapter
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Migraine is a complex, primary headache disorder characterized by sharp throbbing pain often accompanied by nausea and other sensory disturbances. There are two types of migraine: migraine without aura and migraine with aura. It is known to impart significant burden on society, both financially and socially. There is strong evidence for the role of...
Article
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According to Global Burden of Disease research 2019, migraine has emerged as a major health concern as it ranked second among the leading causes of disability worldwide. Both genetic and environmental factors are responsible for the onset and progression of migraine. Considerable evidence suggested the role of epigenetic mechanisms in disease etiol...
Preprint
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The study was conducted during September 2018-August 2019 to study the digenetic trematode infection in fresh water fishes of some of the water bodies viz . Gho-manhasan, Chakrali and Chadwal of Jammu region of J&K union territory A total of 220 fishes comprising Ophiocephalus punctatus and Xenentodon cancila belonging to families Channidae and Bel...
Article
Full-text available
The present communication is an attempt to record the developmental changes during the embryonic development of freshwater prawn,. The incubation period ranged from 20 to 35 days. The freshly oviposited eggs were olive green in colour with Macrobrachium dayanum the mean length and breadth being 0.32 and 0.24mm, respectively. Various embryonic stage...
Article
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Abstract: The study was conducted during 2016-18 to ascertain the taxonomic status of trematode parasite Euclinostomum heterostomum along with the various physicochemical parameters affecting parasitic infestation in freshwater fishes of river Tawi. A total of 690 fishes comprising , , , and Labeo rohita Tor putitora, Channa punctatus, Puntius sop...
Article
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Genetic variations among prawns act as an important tool to characterize and differentiate between the species. Molecular and phylogenetic analysis of shrimps and prawns like any other organism rely on high yields of pure and better quality genomic DNA. In this regard isolation of DNA is the first and basic step. In spite of the availability of man...
Article
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The study was conducted to assess the growth and survival of Macrobrachium rosenbergii in earthen culture ponds in order to know about the growth potential of M. rosenbergii in mono as well as polyculture conditions in Jammu. Polyculture experiments of prawn with some selected carps Indian Major Carps (Cirrhinus mrigala and Labeo rohita) and Exotic...
Article
The present study aims to assess the status of freshwater crab from Jammu region for a period of six months (Oct 2017-Mar 2018) from four sites viz., Gho-Manhasan, Kheri,Sehi and Nagri. The study was carried on species diversity including aspects as taxonomic position, morphological, sexual characteristics, habit, habitat and distribution. Major mo...
Article
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The present study aims to assess the status of freshwater crab from Jammu region for a period of one year from October 2017 to September 2018. The survey was carried out in two districts of Jammu division viz., Jammu and Kathua region (J&K State) over the four study stations as Jhajjar stream, Gho-Manhasan stream, Chakrali stream and Chadwal stream...
Article
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Types and Periodical chromatophore distributionpattern as a breeding dress modification inHimalayan freshwater prawn Macrobrachiumdayanum.Apurva Sharma*, Seema Langer and Palaq .Department of Zoology, University of Jammu, 180006.ABSTRACTA well developed chromatophore system is wide spread among crustaceans. These chromatophoresappeared on the prawn...
Article
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Bioefficacy of ethanol leaf extracts of Vitex negundo and Justicia adhatoda was studied specifically for third instar larvae of Spodoptera litura to investigate their antifeedant, larvicidal, pupicidal and ovicidal activities. As the concentration of test extracts increased, a corresponding increase in the antifeedant, larvicidal, larval duration,...
Article
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Fecundity is the total no. of eggs produced by a female with reference to body weight during the average life span. The eggs were found attached to the body of the female inside the brood chamber. During the estimation of fecundity it was found that Macrobrachium dayanum spawned twice in a year (i) from May to July and (ii) Nov to Dec. It was obser...
Article
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Abstract The present study investigates the freshwater prawn diversity of some water bodies from Jammu region of Jammu and Kashmir State of India. Jammu is located on the Southern slopes of Shivalik hills of Himalayas at an altitude of 366 metres above the sea level. In the water bodies of Jammu region, the genus Macrobrachium earlier was represent...
Article
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Abstract The present study was carried out to study the feeding habits of Labeo rohita from culture ponds of Gho-Manhasa fish farm, Jammu. Monthly samples were collected from the ponds to study the gut contents. In case of L. rohita in LrfI (lowest size group) and LrfII, LrfIII 40 guts/group, LrfIV 50 guts (due to non-availability of the size cat...
Article
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The work was carried out for a period of one year to study the proximate body composition of Labeo rohita which were collected from Gho-Manhasa fish farm because of easy access and availability in abundance throughout the year. The specimens were divided into four groups on the basis of their size and sex viz., LrbI (Size 20.0 mm-100.0 mm); LrbII (...
Article
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An investigation has been conducted on the Gho-Manhasan stream of Jammu region from Dec 2014- Nov 2015 with an aim to work out the various breeding related changes in the Himalayan prawn Macrobrachium dayanum. During this period, certain important periodical modifications were found likely as the presence of extra setae especially for the purpose o...
Article
The study describes the effect of pathological manifestation of an acanthocephalan parasite Neoechinorhynchus sp. in the intestines of fish Labeo rohita of river Tawi (Chenab) of Jammu. For the histopathological investigations, tissue samples from the infected fish were fixed in Bouin’s fixative for 24 hours, processed and 6-8 micron thick sections...
Research
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The study describes the effect of pathological manifestation of an acanthocephalan parasite Neoechinorhynchus sp. in the intestines of fish Labeo rohita of river Tawi (Chenab) of Jammu. For the histopathological investigations, tissue samples from the infected fish were fixed in Bouin’s fixative for 24 hours, processed and 6-8 micron thick sections...
Article
One of the cultivable aqua animals in fresh water bodies are the crabs. Even though it has great potential for the employment generation, very little work has been done on the culture aspect of this crustacean. A study has therefore, been undertaken as a step towards the development of culture technology of the crab. In the present study, the effec...
Article
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The present study evaluated the genetic variations using ISSR-PCR technique for the first time on two species of Macrobrachium from Jammu region of J&K, India. The Inter Simple Sequence Repeat Polymorphic DNA (ISSR) analysis was employed to estimate the genetic relationships and diversity among two species of local prawns (Family Palaemonidae). The...
Article
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Abstract The present study investigates the application of greenhouse technology on the growth and survival of Macrobrachium rosenbergii in colder Himalayan Regions. The experimental setup for observation of prawn survival and growth consisted of two fish ponds covered by dome-shaped poly-houses for solar heating in the laboratory complex of Post G...
Article
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ABSTRACT The present study was conducted to access population structure of Selum nullah and Aik nullah, the diversity rich perennial tributaries of river Tawi. Present study depicts the presence of total 14 species belonging to 10 genera and 4 families in Selum nullah and 20 species belonging to 15 genera and 8 families in Aik nullah including 13 s...
Article
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The paper deals with the seasonal changes in colour/chromatophores in Puntius sophore. In the present studies chromatophore index has been calculated throughout different seasons for different size groups from the scales of the fish Puntius sophore and observations are recorded. Table 1 shows the average chromatophore index in all size groups in th...
Research
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The present study was conducted on the gills of L. rohita of river Tawi parasitised by a crustacean parasite Argulus to reveal the histopathological characteristics of the gills of these fresh water carps. Histopathology provides a rapid method to detect effects of pathogens on different tissues and it can be considered as an indicator of the exten...
Article
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Abstract Population structure of Daphnia similis was analysed in a local perennial pond at Kot-Bhalwal, Jammu for a period of one year (January –December, 2013). Throughout the experimental period, density of D. similis remained quite high (12-15 ind/ml) with a maxima recorded to be 30 ind/ml during March (temperature 21 °C) and minima recorded dur...
Article
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An inventory was carried out to study the aquatic entomofauna in three tehsils of Kishtwar District of Jammu and Kashmir state, from 2013 – 2014. A total of 30 species were collected out of which 18 were identified. The identified species represented 18 genera, 14 families and 5 orders. Insects belonging to Coleoptera (22%), Hemiptera (22%), Odonat...
Article
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A detailed survey was conducted in some tributaries and streams of River Ravi and River Chenab during the period from March, 2012 to Feb, 2014 with a view to assess the status of Tor putitora in the Jammu region of Jammu and Kashmir State. The various water bodies scanned so far Tor putitora was recorded from River Tawi, Baba Dhansar stream, Bangan...
Poster
The freshwater prawn, Macrobrachium dayanum was collected for a period of one year from Gho-Manhasa stream, Jammu to investigate the seasonal variation in the proximate composition/nutritional status of the animal. Marked seasonal variation in protein, lipid and moisture were observed during a period of one year wherein the protein content in case...
Article
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During the course of present study, various nutritional aspects viz. protein, glycogen, lipid, moisture and ash of the body meat of an edible freshwater crab, Maydelliathelphusa masoniana (Henderson) has been investigated in both male and female crabs and marked seasonal variations were also taken into consideration during an yearlong investigation...
Article
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SUSCEPTIBILITY OF LABEO ROHITA AND TOR PUTITORA TO A CRUSTACEAN PARASITE ARGULUS FOLIACEOUS
Article
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Fecundity of gravid female fish Puntius sophore was estimated during the period from July to September. The estimated fecundity ranged of 1560 to 2314 eggs with a mean total length of 5.5 cm and body weight of 5.47 gm. The relative fecundity ranged from 390.85 to 480.18 per fish and absolute fecundity from 6106.73 to 6942.35 eggs. Mature ovaries of...
Article
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The present study describes the seasonal fluctuation in the proximate body composition of different size groups of Macrobrachium dayanum and among the sexes MdbI (Size 6.0-20.0 mm), MdbII (Size 21.0-40.0 mm), MdbIII, (Size 41.0-60.0 mm Male) and MdbIV (Size 41.0-60.0 mm Female). The results revealed that average moisture and protein content in musc...
Article
The gonadal development in fresh water Crab Maydelliathelphusa masoniana (Henderson) is being described based on macrosophic and microscopic analysis for a period of two years viz (Jan 2012- Dec 2013). Maydelliathelphusa masoniana (Henderson) is a biannual breeder exhibiting two breeding peak seasons (June-July & Dec-Jan). The gonadal stages observ...
Article
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Fish fauna form an integral part of aquatic ecosystems, and any changes taking place in the medium in which they live can affect their productivity, diversity and distributions. In order to assess the current status of the fish fauna of the river Chenab, study was undertaken from October 2013 to October 2014. Monthly samplings were carried out at t...
Article
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A survey was conducted in some fresh water ecosystems of Jammu during the period from Jan. 2012 to Dec. 2013 with a view to assess the status of fresh water crab resources in the area. The study was made on species diversity including its taxonomic position, morphological characteristics, habits, habitat and distribution. Out of various water bodie...
Article
The present study deals with the population structure of freshwater crab May delliathelphusa. masoniana, focusing on then size frequency distribution, sex ratio, and breeding season. Crabs were randomly collected from the study area on monthly basis for a period of two years from Jan 2012 to Dec 2013. A total of 592 crabs were obtained of which 310...
Article
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Two cladoceran crustaceans, viz., Daphnia similis and Chydorus sphaericus were studied under laboratory conditions to assess the competition between a large and a small sized cladoceran. Interspecific and intraspecific competition was analyzed using different food items (rice bran, cow dung, and paramecium sp.) for a period of 24 days. The combinat...
Article
The species composition, abundance and temporal variations of zooplankton of Behlol Nullah revealed the occurrence of 24 species of zooplankton; among these 4 species belonged to protozoa, 14 species to rotifer, 6 species to cladocera and 1 species to copepoda with Nauplius larva were reported. Qualitatively the rotifers dominated over other zoopla...
Article
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Length weight relationship of Tor putitora was studied from Jhajjar stream, a tributary of river Chenab. A total of 60 specimens were collected from March, 2012 to Feb, 2013. Total length of the specimens ranged from 9.2 cm to 18 cm. Multiple regression analysis was done by using SPSS software to compute the degree of relationship between length an...
Article
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The population abundance of Tor putitora from Jhajjar stream, a tributary of river Chenab was studied. Mean length of the fishes collected varied from 8.0 to 16 cm. Mean CPUE values were recorded in the range of 4.9 to 6.6 leading to a decline in the population abundance. The physico-chemical parameters of the stream were also analysed. A correlati...
Article
Studies on the seasonal variation in the lipid and moisture content of body tissues of Paratelphusa masoniana, a locally available freshwater crab, of Jammu were conducted for a period of one year (i.e., July 2010 to June 2011). Remarkable variation in the lipid and moisture content of different tissues of P. masoniana has been analyzed during the...
Article
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The assessment of water body at Kot-Bhalwal area of Jammu region was carried out for a period of six months from January 2013 to June 2013, to record the population abundance of a cladoceran species Daphnia similis in relation to physico-chemical parameters of water. Various parameters viz .dissolved oxygen, free carbon dioxide, carbonates, bicarbo...
Article
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The species composition, abundance and temporal variations of rotifer fauna of Behlol Nullah revealed the occurrence of 14 species of rotifers belonging to 7 Families. Brachionidae dominated the rotifer community at all the study stations with respect to species composition as well as species abundance. St III (10 species) and St V (10 species) exh...
Article
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A study on the morphometric characters and meristic count of Himalayan Mahseer (Tor putitora) was conducted in foot hill section of River Chenab (Jammu and Kashmir). Different samples of mahseer were examined for the study of morphometric and meristic count. Some deviations, with regard to a few morphometric parameters and meristic count have been...
Article
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The freshwater crab, Paratelphusa masoniana was collected for a period of one year to investigate the seasonal fluctuation in the proximate composition. Marked seasonal variation in protein, lipid and moisture were observed during a period of one year to determine their viability in the course of the reproductive cycle. Both protein and lipid conte...
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Present contribution focuses on the Himalayan mahseer where a survey was carried out in all rivers and tributaries of Jammu province (J&K State) so as to ascertain its present status. The fishes were observed to range from 8.2 cm to 26.5 cm with a weight limit of 10 gm to 350 gm. The study revealed that despite their abundance at one time, mahseer...
Article
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Puntius sophore collected from Gho-Manhasan river were dissected and ovaries were histologically studied throughout the year. Seven stages of oocytes were recognised in Puntius sophore. Oogonia were present througout the reproductive cycle. The most important event observed during the study was the observation of crystalline yolk, atretic oocytes i...
Article
Sex related variations in total erythrocyte count (TEC), haemoglobin level (Hb), haematocrit (Hct), differential leucocyte count (DLC), total leucocyte count (TLC), mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH) and mean corpuscular haemoglobin concentration (MCHC) were determined in hill stream fish, Garra gotyla gotyla from Jha...
Article
The present study was undertaken to evaluate the diversity, abundance and distribution of the fish fauna of Behlol Nullah, a tributary of River Tawi, (Jammu). The occurrence of fifteen fish species belonging to five families i.e. Cyprinidae, Cobitidae, Bagridae, Sisoridae and Channadae were recorded of which the Cyprinidae was the most dominant gro...
Article
Benthic organisms are generally considered to be good indicators of environmental conditions of aquatic ecosystem. The present study was undertaken to study the diversity and seasonal variation of macrobenthic invertebrate fauna in Behlol Nullah, (Jammu) for a period of one year (May, 2009-April, 2010). The benthic macroinvertebrate fauna was repre...
Article
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The Macrobrachium dayanum, a locally available freshwater prawn of Jammu was sampled regularly for a period of one year to analyze the seasonal variation in the lipid contents of muscles, hepatopancreas and ovary. Remarkable variation in the lipid content in different tissues of M. dayanum has been analyzed during the study period. Changes in the l...
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The effect of locally available low cost ingredients such as silk worm pupae (SWP), soyabean meal (SBM), earth worm meal (EWM) as a replacement of fish meal (FM) on growth, survival and biochemical composition, were investigated for Macrobrachium dayanum (0.50 g). A significantly higher rate of growth, survival and food conversion ratio (FCR) were...
Article
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This investigation was carried out to study the effect of different live feed and dry feed on growth and survival of Labeo rohita at a stocking density of 20 larvae per trough having 10 L of water. The increase in weights and lengths were used as measures of growth. The duration of the experiment was 30 days. Seven dietary treatments were tested vi...
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The present observation based on gut content analysis revealed detritiherbivore nature of Macrobrachium dayanum (Henderson). The major components present in the gut were Detritus > Sand particles > Algae > Diatoms > Macrophytes > Animal matter. Frequency of empty stomachs however, was more in young as compared to adults, indicating a relationship b...
Article
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To study the effect of different stocking densities on the growth and survival of the freshwater prawn the post larvae with mean weight of 0.114g were stocked at 5, 10, 15, and 20 prawns/m 2 and cultured for a period of 49 days (7-weeks) under laboratory conditions. Prawns were fed artificial diet with 8% of wet body weight twice a day. Water excha...
Article
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The effect of eyestalk ablation (uni-lateral and bi-lateral) on ovarian histology of Macrobrachium dayanum has been evaluated. Morphological variables like weight and size were recorded & ovaries were histologically evaluated according to oocyte diameter and percental occurrence of oocytes. In the ovarian tissue of unablated female's basophilic ooc...