KAJIAN PENGEMBANGAN TEMPAT PELELANGAN IKAN (TPI) DI SENTRA KAWASAN PELABUHAN PERIKANAN MUARA KINTAP KABUPATEN TANAH LAUT PROVINSI KALIMANTAN SELATAN

The potential Fish Auction Place in the fish port of Muara Kintap is expected to become the center of economic growth and development of fisheries. The existence of the facility is an input to the process of the function implementation in Fish Auction Place which condition is related to its availability and number in the fish port. The facilities which are managed optimally will produce the optimum output anyway. This study aimed to identify the presence of TPI in the central area of the Muara Kintap in Kecamatan Tanah Laut which has the potential to be developed. This study uses descriptive qualitative research and literature survey. Based on the survey results, it was revealed that the condition of Fish Auction Place (TPI) in the fish port of Muara Kintap in Kecamatan Tanah Laut did not implement a pure auction, it was due to the basic facilities, unwell maintained functional and supporting tools, and also due to the collaboration of some merchants in controlling prices. Several attempts to optimize Fish Auction Place (TPI) including the addition of supporting facilities, such as clean water, cool boxes, scales and carts/baskets as well as banks as partners in financial institutions to access capitals for a business group of fishermen. The comfortable condition of loading and unloading activities, as well as sanitation and hygiene, really needs to be fulfilled, including the revitalization of the fish fleet. Ideally, in every region of fishery activities in a fishermen concentration area, a fish port should be built, or at least fish hauling with clean Fish Auction Unit, to meet the requirements of the integrated quality program so that the selling prices of fish caught by fishermen con be rewarded appropriately. SWOT analysis results indicated that strategy chosen was the S - O (Strengths – Opportunities) which utilized all power of Muara Kintap Fish Port to take advantage of development opportunities as much as possible.

Flow Around the Free Bottom of Fish Cages in a Uniform Flow With and Without Fouling

This paper explores the flow around fish cages in a uniform flow with the focus on the flow patterns close to the bottom of the models. Towing tests were conducted with six straight cylinders with the porosities 0%, 30%, 60%, 75%, 82%, and 90%, two cylinders with an inclination of 12.5 deg, and the porosities 0% and 75% and two cylinders with an inclination of 25 deg and the porosities 0% and 75%. The models all had a height-to-diameter ratio of 3 and were made from metal mesh. The Reynolds number was 5000 based on the diameter of the models and 15 based on the diameter of individual strings of the mesh for all tests. Particle image velocimetry, a nonintrusive optical technique, was used to analyze the flow around the models in the plane of symmetry through the center of the cylinders. The porosities of 82%, 75%, and 60% correspond to those of a clean fish cage netting in Norwegian Salmon farming with no fouling, light fouling, and heavy fouling, respectively. The inclinations of 12.5 deg and 25 deg reflect the inclination of the net of a commercial fish cage in a slow and a fast current, respectively. The Reynolds number of the strings was within the range of Reynolds numbers occurring on fish cages along the Norwegian coast. The results from this study are discussed with respect to the flow around and through the same models at identical Reynolds numbers. It is shown that the inclination of the net cage and fouling of the netting have major effects on the flow pattern around fish cages. The flow around and through net cages defines the water exchange within fish cages and the distribution patterns of particles and nutrients released from a net-pen. The information provided in this study can be valuable for the fish farming industry, as the decrease of the porosity due to fouling, as well as the deformation of the netting of fish cages, can be controlled by fish farmers.

Flow Around the Free Bottom of Fish Cages in a Uniform Flow With and Without Fouling

This paper explores the flow around fish cages in a uniform flow with the focus on the flow patterns close to the bottom of the models. Towing tests were conducted with six straight cylinders with the prosities 0%, 30%, 75%, 82% and 90%, two cylinders with an inclination of 12.5 degrees and the porosities 0% and 75% and two cylinders with an inclination of 25 degrees and the porosities 0% and 75%. The models all had a height-to-diameter ratio of 3 and were made from metal mesh. The Reynolds number was 5000 based on the diameter of the models and from 15 to 300 based on the diameter of individual strings of the mesh for all tests. Particle Image Velocimetry (PIV), a non-intrusive optical technique, was used to analyze the flow around the models in the plane of symmetry through the center of the cylinders. The porosities of 82%, 75% and 60% correspond to those of a clean fish cage netting in Norwegian Salmon farming with no fouling, light fouling and heavy fouling, respectively. The inclinations of 12.5 degrees and 25 degrees reflect the inclination of the net of a commercial fish cage in a slow and a fast current, respectively. The Reynolds number of the strings was within the range of Reynolds numbers occurring on fish cages along the Norwegian coast. The results from this study are discussed with respect to the flow around and through the same models at identical Reynolds numbers. It is shown that the inclination of the net cage and fouling of the netting have major effects on the flow pattern around fish cage. The flow around and through net cages defines the water exchange within fish cages and the distribution patterns of particles and nutrients released from a net-pen. The information provided in this study can be valuable for the fish farming industry, as the decrease of the porosity due to fouling, as well as the deformation of the netting of fish cages, can be controlled by fish farmers.

Sea Movements of Canadian Atlantic Salmon Kelts

Salmon related to various rivers of eastern Canada were tagged and liberated after spawning, by the Department of Fisheries in various years from 1913 to 1936. Analysis of the recaptures shows varied movements, the differences from river to river and for the one river from year to year being seen as due to differences in the environment. When liberated in or even outside the estuary, they may enter and ascend the river while still in the kelt condition, if suitable freshets occur.As kelts and as clean fish in both first and second years after liberation, they are principally found in the estuary, distinctly more riverward than the virgin fish. However, when swept out of the estuary, as occurs in a river like the Margaree and, if return is difficult, their distribution will differ but little from that of the virgin fish.A pronounced zone of river influence in the sea is seen as holding the salmon to the locality near the river mouth, as for the Saint John river of New Brunswick. With an indistinct zone, more or less of the salmon wander to other regions, largely in correspondence with water movements.The length of time between successive spawnings is found to correspond with the time between the smolt stage and first spawning and to be related to sea temperature during the spring and summer.

2. On the Composition of the Flesh of the Salmon in the “Clean” and “Foul” condition

Having had occasion lately to fill up some blanks in a table of the Nutritive Value of different kinds of Food, I was unable to find for the purpose an analysis of the flesh of the Salmon. I have therefore made such an analysis as is necessary; and as the results may be useful to others, I beg to offer them to the Society.I first examined the composition of a very fine “Clean” fish, caught in the estuary of the Tay in May last year, and weighing 20 pounds. I have never seen a finer fish from that far-famed salmon-river.