Utilization of Fad Distribution in South Buton Waters As a Fishing App by Purse Sein Fishermen in Kadatua District, Selatan Buton Regency

Fish Aggregating Devices (FAD's) have long been used by fishermen in South Buton Regency. This study aims to determine the utilization of FAD distribution as a fishing aid by purse sein vessels in the waters of Kadatua District, South Buton Regency. This study aims to determine the utilization of FAD distribution as a fishing tool by purse sein vessels in Kadatua District, South Buton Regency. Data collection methods include FAD point data taken from GPS (Global Position System) fishermen and dominant catch data from purse sein fishermen. The results of the study obtained data on the distribution of FADs in Kadatua District spread between a distance of 0-12 miles, during the study the coordinates of FADs were obtained as many as 79 coordinate points owned by fishermen in Kadatua District. FADs used by purse sein fishermen to carry out fishing operations have 24 FAD points, which are spread over a distance of 0 – 12 miles. In April the distribution of FADs used as fishing aids by purse sein vessels was at a distance of ± 0 – 12 miles, while in May and June FADs used as fishing aids were at a distance of ± 2 – 12 miles. The dominant fish catch data for purse sein fishermen is 690 kg in April, 525 kg in May and 735 kg in June. The dominant catch during the study was dominated by scad fish (Decapterus spp). The level of effectiveness of the dominant catch of purse sein fishermen is highest at a distance of 4-12 miles with a total catch of 1,070 kg of the total catch of 1,950 kg.

Molecular Genetic Analysis of Families With Nystagmus

Genetic studies provide an opportunity to discover the basis of inherited diseases. Identification of new disease-causing variants provides important insights into the molecular genetic basis of an inherited disease. Once the genetic cause of a disorder is established, diagnostic testing may be performed to provide affected families the chance of early diagnosis and treatment intervention, support may be provided via premarital or prenatal counseling, and educational benefits may be provided regarding the causes and nature of the inherited disease. Nystagmus, characterized by abnormal eye movement can be non-syndromic or syndromic (associated most commonly with albinism and OCA). Most commonly observed form of eyes movement is horizontal (to-and-fro), but some other like vertical, rotary, jerk and pendular have also been reported. Idiopathic congenital nystagmus (ICN) refers to a group of abnormal eye movements which can be observed within the first 6 months after birth (early infancy). The worldwide Frequency of nystagmus is unknown but one study revealed 1in 1,500 live births. There is no report available about its prevalence in the Pakistani population. This study involves the genetic investigation of nystagmus and associated syndromes in selected families from different regions of Pakistan. During this work, six (6) novel mutations were uncovered in four genes, associated with non-syndromic (FRMD7) and syndromic (TYR, OCA2, and CNGA3) nystagmus. These mutations are one novel nonsense mutation p.leu133* in the FRMD7 gene in a family (Family-01) with congenital nystagmus, a novel missense mutation p.Trp80Cys in the first coding exon of TYR in two families (Family-02 and 03), two novel heterozygous OCA2 gene mutations p.Arg588Trp and p.Arg137Ilefs*83 in two families (Family-05 & and 06) and a novel missense mutation c.1540G>A (p.D514N) in family-08 along with one reported TYR mutation, three OCA2 heterozygous and one CNGA3 mutation in different families (Family04, Family-07, and Family-09).In order to establish the pathogenic potential of the described variants, different in-silico analyses were performed. Further, normal and mutated protein structures were predicted by expand current knowledge of the molecular causes of nystagmus and associated clinical conditions. More in-depth investigation of the disease mechanisms underlying these conditions may, in turn, translate into providing treatment therapies for affected families in near future.