Trawlers of Munambam F.H. and Munambam

MiniHarbour after the initial catch of Nemipterus spp.

in August had resorted to a different fishery in

September 2013. The Trawlers had gone in pair and

in single form to exploit the Trichurus lepturus, Sepia

pharoanis and Loligo spp

Hezhakiel, K C

Sijo Paul,

CMFRI Digital Repository

Mar. Fish. Infor. Serv., T & E Ser., No. 219, 2014 23Table 2. Catch composition in purse seine with different time intervals of illuminationFish catch in purse seine net Duration of illumination (h) & Quantity (kg)Species composition Common name Qty (kg in 2 h) Qty (kg in 3 h) Qty (kg in 5 h)Thryssa mystax Moustached thryssa 3000 5000Carangids:Alepes djedaba Shrimp scad 500 1000 1000Megalaspis cordyla Horse mackerelDecapterus russelli Indian scadRastrelliger kanagurta Indian mackerel 100 100Lactarius lactarius Faise trevally 100Uroteuthis(Photololigo) duvauceli Indian squid 50 200 400Parastromateus niger Black pomfret 20 25 30Scomberomorus commerson Spanish mackerel 10 200Trichiurus lepturus Grey ribbon fish 200Coryphaena sp. Dolphin fish 200Metapeaneus dobsoni Flower tail shrimp 2Miscellaneous 5Total 787 4325 7030Grand total 12,142 kguse of light enables concentrating them andcapturing large quantities in a relatively short periodof time. Purse seining with light is an option incoastal areas while hook and line operation can beconsidered as an accompanying gear during lightassisted squid fishing in oceanic grounds. However,care should be taken to avoid the incidental catch/by-catch of small sized and immature aggregatingjuveniles or non-commercial groups which may beattracted to the light. Furthermore, caution has tobe exercised in determining the number of lightfishing units in each fishing zone otherwise it maylead to over exploitation of resources.Fig. 3. Purse seine net operation off Mangalore by MVAngel with lightPaired and unpaired trawling at Munambam F.H. and mini harbourSijo Paul and Hezekiel, K. C.Central Marine Fisheries Research Institute, KochiTrawlers of Munambam F.H. and MunambamMiniHarbour after the initial catch of Nemipterus spp.in August had resorted to a different fishery inSeptember 2013. The Trawlers had gone in pair andin single form to exploit the Trichurus lepturus, Sepiapharoanis and Loligo spp. They had gone for 6-8 daysof average fishing days per trip at a depth range of30-40m for Sepia pharoanis, Loligo spp. and 70-80mMar. Fish. Infor. Serv., T & E Ser., No. 219, 201424Munambam fisheries harbourDate/ Species No. of units Average catch / Average rate / Total revenueunit (kg) kg (`) realized (`)03/09/2013T. lepturus 45 1175 100 52,87,500Loligo spp. 45 719 180 58,23,900Sepia pharaonis 45 956 250 107,55,00013/09/2013T. lepturus 55 5462 120 3,60,49,200Loligo spp. 55 408 180 40,39,200S. pharaonis 55 258 240 34,05,60018/10/2013T. lepturus 60 4880 130 3,80,64,000Loligo spp. 60 1311 180 1,41,58,800S. pharaonis 60 1882 230 2,59,71,60022/10/2013T. lepturus 52 3061 125 1,98,96,500Loligo spp. 52 1044 180 97,71,840S. pharaonis 52 833 220 95,29,52029/10/2013T. lepturus 62 5917 120 4,40,22,480Loligo spp. 62 1446 180 1,61,37,360S. pharaonis 62 1579 230 2,25,16,540Munambam mini harbourDate/ Species No. of units Average catch / Average rate / Total revenueunit (kg) kg (`) realized (`)06-09-13T. lepturus 24 883 120 25,43,040Loligo spp. 24 276 190 12,58,560S. pharaonis 24 244 250 14,64,00007-09-13T. lepturus 16 1095 130 22,77,600Loligo spp. 16 314 190 954,560S. pharaonis 16 229 250 9,16,00023-09-13T. lepturus 29 3750 125 1,35,93,750Loligo spp. 29 600 180 31,32,000S. pharaonis 29 369 220 23,54,22024-09-13T. lepturus 25 4725 125 1,47,65,625Loligo spp. 25 269 180 12,10,500S. pharaonis 25 177 220 9,73,50003-10-13T. lepturus 35 4996 120 2,09,83,200Loligo spp. 35 700 180 44,10,000S. pharaonis 35 1026 230 82,59,30004-10-13T. lepturus 22 2724 130 77,90,640Loligo spp. 22 705 180 27,91,800S. pharaonis 22 870 230 44,02,20023-10-13T. lepturus 31 4033 120 1,50,02,760Loligo spp. 31 746 180 41,62,680S. pharaonis 31 817 230 58,25,21024-10-13T. lepturus 26 3170 125 1,03,02,500Loligo spp. 26 709 180 33,18,120S. pharaonis 26 609 230 36,41,820Mar. Fish. Infor. Serv., T & E Ser., No. 219, 2014 25depth range for T. lepturus. The fishing ground wastowards North West of Munambam F.H. The Trawlerswith similar Horse power engines were pairedtogether so that while trawling the speed of bothtrawlers could be well adjusted in such a way thatthe ropes of trawlnet will hold the mouth of the netwith a maximum opening enabling and ensuring abetter catch. The single trawlers had operated inthe conventional method. While returning they gofor the Loligo spp.or Sepia pharaonis catch so thatboth can be brought fresh to the harbour to fetch abetter price.Another observation made was that of thequality of Trichirus lepturus caught by Chinese enginetrawlers and Indian engine trawlers. Chinese enginetrawlers have higher capacity (280HP,240HP-Yu-chai;495HP– Waiche; 455HP Yanmar; 427HP– Sinotrek), sowhile they trawl, the impact on the fishes is moreand there is a chance for the fishes in the trawlnetto roll off while hauling due to high speed.  The silverenamel coating on the T. lepturus is sheared off sothat it looks like an older catch. The price of T.lepturus with enamel (fresh looking) obtained` 130/- per kg while that with less enamel  (lookingold) obtained `100/- kg as average prices.This catch was witnessed in the start ofSeptember 2013, which had reached its peak by midSeptember and prevailed upto1st week of October2013. The catch details and the revenue obtainedon observation days are given in the table.T. lepturus kept for auction at Munambam fisheries harbourFresh looking T. lepturus kept for auction at Munambamfisheries harbourRare occurrence of blunthorn lobster Palinustus waguensis Kubo, 1963from the southwest coast of IndiaRekha Devi Chakraborty, Maheswarudu, G., Radhakrishnan, E.V., Purushothaman, P., Kuberan, G.,Jomon Sebastian, Thangaraja, R.Central Marine Fisheries Research Institute, KochiOn 12th September, 2013 three specimens of therare deep-sea blunt horn lobsters were landed inthe multiday trawlers operating at a depth of 150-250 m, off Sakthikulangara along the southwestcoast of India. These three specimens consisted oftwo males and a single female. The specimens were

Paired and Un-Paired Trawling at Munambam F.H. and Munambam Mini Harbour

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Paired and Un-Paired Trawling at Munambam F.H. and Munambam Mini Harbour

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