Fisheries profile mapping of coastal districts in Maharashtra state through GIS Item Type article Authors Singh, R.; Pandey, P.K.; Sharma, R.; Ojha, S.N. Download date 24/09/2021 23:37:09 Link to Item http://hdl.handle.net/1834/34545 J. Indian fish. Assoc., 37: 45-50, 2010 45 FISHERIES PROFILE MAPPING OF COASTAL DISTRICTS IN MAHARASHTRA STATE THROUGH GIS Singh Ram\ P. K. Pandey, Rama Sharma and S. N. Ojha, Central Institute of Fisheries Education Deemed University {!CAR} Fisheries University Road, Andheri {W), Mumbai 400 061, India 1corresponding author: e-mail: [email protected] ABSTRACT In recent times, GIS is being increasingly used as a decision support system for management of fisheries and aquaculture. It provides new innovative approaches of the dynamic relations that characterize this sector. In this context, a study is conducted based on the secondary data of a major maritime state, Maharashtra, where mapping of fisheries profile of coastal districts in the state is performed through GIS tool having critical geographic dimensions. This paper aims to map information of the state which can be used for the purpose of planning and decision making as each aspect of map has a different component involved. For this purpose, at the core of the system, the data were accessed and integrated from different sources mainly from the five coastal districts of Maharashtra state. Data were brought in tabular form through Microsoft Excel and then joined to Map info Professional version 8.0 GIS software was used with the digitized map of Maharashtra state to enable mapping. This was further synchronized and integrated to generate four thematic maps searchable on several criteria. Map 1 contains the searchable criteria as regards to the fish growth for the year 1997-2004 and fish seed production for the year 2003-04. Map 2 contains fisher population along with their occupation for the year 1992. Map 3 contains brackish water and shrimp farming production and culture area. Map 4 contains infrastructural facilities which include type of boats etc. With this mapping, planners and various stakeholders have accessible information as regards to the various components of fisheries in the state of Maharashtra. Keywords: Fisheries profile, Maharashtra, GIS. INTRODUCTION growing human population and also contribute greatly to the economy of the Fisheries sector has been playing an major aquaculture producing countries of the important role in the growth of Indian globe. Despite fluctuations in supply and economy through employment generation demand, caused by the changing state of and exports. Many nations are promoting fish fisheries resources, the economic climate and products for better nutrition and food environmental conditions, fisheries and security. Considering the average annual aquaculture remain very important as source growth rate of about 14% in the last five years, of food, employment and revenue generation in global aquaculture production, it is in many countries and communities. It also expected that the sector would play a major seems plausible that in the years to come an role in meeting the protein hunger of the ever 46 Singh Ram, P. K. Pandey, Rama Sharma and S. N. Ojha, increasing number of developing countries RESEARCH MATERIALS AND METHODOLOGY will develop national food security strategies For this purpose, data were accessed in which fish will occupy an important place in and integrated from different sources like, their plan. district handbook of census of fisheries, Govt. Geographic Information System {GIS) is of Maharashtra and its marine production a powerful mapping tool that links mainly from the five coastal districts of state. information found in databases to geographic Data were brought in tabular form through locations and is used as a tool that stores Microsoft Excel and then joined to Map info information about map features. It guides the Professional version 8.0 GIS software with the users to see and interact with data in new ways digitized map of Maharashtra state to enable by blending maps in order to make analysis for mapping. This was further synchronized and decision making. It is being increasingly used integrated to generate four thematic maps as a decision support system for management searchable on several criteria. Map 1 contains of fisheries and aquaculture. The coasts of the searchable criteria as regards to the fish Maharashtra in India face particular growth and fish seed production (in tones) for challenges related to the management of the year 1997-2004. Map 2 contains fisher spatial resources at the coast, including population along with their occupation for the population growth, increased tourism year 1992. Map 3 contains brackish water and pressure, economic restructuring, and a shrimp farming production (in tones) and inheritance of pollution. In present times, culture area (in ha). Map 4 contains coastal districts in Maharashtra are becoming infrastructural facilities which include type of complex places and subject to multiple boats etc. of Maharashtra state. With this resource demands, carry risk for coastal mapping, planners and various stakeholders populations, and are ecologically very can have accessible information as regards to important. The complexity of coastal districts the various components of fisheries in the makes them inherently difficult to manage, state of Maharashtra. however, good quality and timely information Growth in fish production has been analyzed can assist better decisions. This places a by using the exponential growth function of particular importance on managing the form information for those tasked with making important decisions about coastal areas. (1) In this context, present study has been where Y = Dependent variable for which conducted based on the secondary data of a growth rate is estimated major maritime state, Maharashtra, which 1 a = Intercept ranks 3'd in marine production and 6 h in inland production in India. Mapping of fisheries b = Regression co-efficient profile of coastal districts in the state is t = Time variable performed through GIS technology having critical geographic dimensions. This paper e = Errorterm aims to map information of the state which The above mentioned equation (1) has been can be used for the purpose of planning and used to obtain the growth-rate of marine, decision making as each aspect of map has a inland and total fish production of all the different component involved. states of India forthe period [1990-91to2003- 04]. Linear form of the equation (1) is obtained FISHERIES PROFILE MAPPING OF COASTAL DISTRICTS IN MAHARASHTRA STATE THROUGH G!S 47 by taking logarithms on both sides which is RESULTS AND DISCUSSIONS given by Map 1: Fish production growth and fish seed (2) production The compound growth rate (r) can be Map 1 mainly depicts two layers via; computed by using the relationship (i) Fish production growth containing three components marine, inland and total fish r [Antilog.ofb 1]x100 ... (3) = production growth during the period 1997- Growth rates have been calculated 2004 and fish seed production for the year for marine, inland and total fish production 2003-04. View of this map represents that separately for each district in Micro Soft Excel. major coastal districts of Maharashtra state The excel sheet was joined to digitized map of are showing negative fish production growth Maharashtra state by allotting a location code rate. Further, a GIS analysis reveals that (LC) number to each district. After joining of Ratnagiri and Sindhudurg are least productive the excel sheet, geocoding process is adopted. coastal districts as regards to fish production In geocoding, all the districts ID and digitized in Maharashtra with total growth rate of maps are matched to district wise location 16.08% and -11.99% respectively. This is code. After geocoding, by adopting followed by the other coastal districts Thane customized layering system in the and Greater Mumbai, which are also showing GISSoftware Map Info, first layer in thematic declined negative growth rate as -10.6% and - map was created for fisheries profiles of 6.59% respectively. Maharashtra. The second layer in thematic map represents fish consumption for the year 2003-04. MAP1 : FISH PRODUCTION GROWTH (1997-2004)$ FISH SEED PRODUCTION (2003-04) OF I COASTAL MAHARASHTRA filiM 1!•.F1"l:; l'l JUW !I" T(,Ti....:,, r:~H ::EE} r:-:::'JOll·:·T;c11,:01):;~~00.=. HL\.<!"'S ::J ,, [J ·,SO l•J s:o _':·, :J r)1<J 48 Singh Ram, P. K. Pandey, Rama Sharma and S. N. Ojha, Growth of inland fisheries production in the mentioning first layer for Fisher population state is showing a sharp decline in coastal and their occupation and second layer for regions with Raigad having -29.58% followed housing facilities available with them. A by Gr. Mumbai, Ratnagiri and Sindhudurg with general view of this map reveals that Thane -16.67%. Second layer of the map 1 contains district has maximum number of fisher information on fish seed production in coastal population in coastal regions figuring 80,695 districts of Maharashtra for the year 2003-04. out of which nearly 50% population is involved Spawn production capacity is highest in Thane in fishing activities. Raigad district ranks district with 500 lakhs followed by Raigad second in terms of fisher population with having 300 lakhs and the least is observed in number touching 60,958 and out of which Greater Mumbai with 150 lakhs. According to 45% are involved in fishing activities. Ratnagiri the available information on government fish ranks third with 52,293 of fisher population, in seed production centres, available water which 50% population are involved in fishing spread area (in ha) is proportionately more in activities. This is followed by Greater Mumbai, Thane with 2.36 ha followed by Raigad and which is also one of the biggest urban cities in Greater Mumbai having 1.10 ha and 0.59 ha India, having 34,580 fisher population in respectively.