THE CONSTRUCTION OF A BIOECONOMIC MODEL OF THE INDONESIAN FLYING FISH FISHERY

The high price of flying fish eggs in Japan encourages South Sulawesi fishermen in Indonesia to harvest increasing quantities of eggs every year. Similarly, the increasing local demand for flying fish encourages Indonesian fishermen to use gill nets to catch more fish. As a consequence of this increasing quantity of eggs harvested and fish caught, Indonesia has become concerned about the overexploitation of the flying fish population. Thus far policy suggestions concerning the management of the flying fish fishery have been based on a static biological model, since the data needed to construct a dynamic bioeconomic model are very limited. This paper presents a method for constructing a dynamic bioeconomic model of the Indonesian flying fish fishery with very limited data on the fish population. A calibration technique is developed to build the dynamic biological model.Resource /Energy Economics and Policy,

Some observations on a copepod parasite from a flying fish and a bunch of flying fish eggs attached to a flotsam

observations made on a copepod parasite from a flying fish and a bunch of flying fish eggs are described

Sebaran Ukuran, Hubungan Panjang-Berat dan Faktor Kondisi Ikan Pantau Janggut (Esomus Metallicus AHL) di Sungai Tenayan dan Tapung Mati, Riau

The research about length frekuency distribution, length-weight relationshipand factor condition stripped flying barb in Tenayan and Tapung Mati River, RiauProvince have been conducted from May 2010 until April 2011. Fishes were caughtby floating net (2 x 5 m) and scoopnet (diameter 0,5 m). The fish samples werecollected every month, and fish collecting based on sensus method. The researchpurpose to know the biggest length frekuency distribution of stripped flying barb inthe nature population. Growth pattern and condition factor of stripped flying barb.Result shown that the population of stripped flying barb is dominate by lengthfrekuency distribution 41 – 50 mm, growth pattern of fish was allometric negativeand value condition factor of the female is the biggest than the male fishes

Effect of inertia on laminar swimming and flying of an assembly of rigid spheres in an incompressible viscous fluid

A mechanical model of swimming and flying in an incompressible viscous fluid in the absence of gravity is studied on the basis of assumed equations of motion. The system is modeled as an assembly of rigid spheres subject to elastic direct interactions and to periodic actuating forces which sum to zero. Hydrodynamic interactions are taken into account in the virtual mass matrix and in the friction matrix of the assembly. An equation of motion is derived for the velocity of the geometric center of the assembly. The mean power is calculated as the mean rate of dissipation. The full range of viscosity is covered, so that the theory can be applied to the flying of birds, as well as to the swimming of fish or bacteria. As an example a system of three equal spheres moving along a common axis is studied.Comment: 19 pages, 11 figure

Charles M. Breder, Jr.: Atlantis Expedition, 1934

Dr. Charles M. Breder participated on the 1934 expedition of the Atlantis from Woods Hole, Massachusetts to Panama and back and kept a field diary of daily activities. The Atlantis expedition of 1934, led by Prof. A. E. Parr, was a milestone in the history of scientific discovery in the Sargasso Sea and the West Indies. Although naturalists had visited the Sargasso Sea for many years, the Atlantis voyage was the first attempt to investigate in detailed quantitative manner biological problems about this varying, intermittent ‘false’ bottom of living, floating plants and associated fauna. In addition to Dr. Breder, the party also consisted of Dr. Alexander Forbes, Harvard University and Trustee of the Woods Hole Oceanographic Institution (WHOI); T. S. Greenwood, WHOI hydrographer; M. D. Burkenroad, Yale University’s Bingham Laboratory, carcinology and Sargasso epizoa; M. Bishop, Peabody Museum of Natural History, Zoology Dept., collections and preparations and H. Sears, WHOI ichthyologist. The itinerary included the following waypoints: Woods Hole, the Bermudas, Turks Islands, Kingston, Colon, along the Mosquito Bank off of Nicaragua, off the north coast of Jamaica, along the south coast of Cuba, Bartlett Deep, to off the Isle of Pines, through the Yucatan Channel, off Havana, off Key West, to Miami, to New York City, and then the return to Woods Hole. During the expedition, Breder collected rare and little-known flying fish species and developed a method for hatching and growing flying fish larvae. (PDF contains 48 pages

World squid fisheries

Peer reviewedPublisher PD

An Independent Review of the E.U. Illegal, Unreported, and Unregulated Regulations

Illegal, unregulated and unreported (IUU) fishing refers to fishing activities that do not comply with national, regional, or international fisheries conservation or management legislation or measures . IUU fishing is complex and affects many stakeholders from the individual artisanal fisher in national waters, to fishing fleets in Exclusive Economic Zones (EEZ) and the High Seas, to fish processor and fisheries managers in developed and developing countries. Illegal fishing occurs in every ocean in the world, resulting in the loss of individual jobs and income, depletion of existing fish stocks, damage to the marine environment, and loss of state revenue . It affects activities both at sea and onshore, such as shipment, transportation, landing, importation and exportation, sale, and distribution of fish products . IUU fishing also has the potential to reduce the amount of fish available to subsistence fishers and communities who rely on fish as their staple diet. For example in Sierra Leone, fish provides approximately 65% of the protein source consumed by the under-nourished population. Thus people's livelihoods and food security may be seriously threatened by the possibility of losing access to this food source as result of IUU fishing