scholarly journals Length-Weight Relationship and Condition Factor of Layang Fish (Decapterus russelli) Landed at Tenda Fish Landing Base, Gorontalo

2021 ◽  
Vol 5 (1) ◽  
pp. 44-50
Author(s):  
Frismarwati Wahyuni Lawadjo ◽  
Munirah Tuli ◽  
Nuralim Pasisingi
Keyword(s):  
Growth Pattern ◽  
Random Sampling ◽  
Sampling Method ◽  
Condition Factor ◽  
Simple Random Sampling ◽  
Allometric Growth ◽  
Male And Female ◽  
Weight Relationship ◽  
Flying Fish

The study aims to figure out growth pattern and condition factor of the flying fish (Decapterus russelli) landed at the Fish Landing Base Tenda, Hulonthalangi District, Gorontalo City. Sampling of 360 layang fish was carried out randomly based on a simple random sampling method for three months. Determination of fish sex was conducted visually by dissecting samples and observing the gonads. The study showed that the layang fish (D. russelli) landed in PPI Tenda had a positive allometric growth pattern with condition factor values ranging from 1.005 to 1.014 and 1.002 to 1.620 for male and female, respectively

scholarly journals Length-weight relationships and condition factor of Hyperopisus bebe (Lacepede, 1803) (Actinopterygii: Osteoglossiformes) in River Galma, Zaria, Kaduna State, Nigeria

2017 ◽  
Vol 4 (8) ◽  
pp. 301-305
Author(s):  
Matouke M. Moise
Keyword(s):  
Water Quality ◽  
Water Body ◽  
Growth Pattern ◽  
Condition Factor ◽  
Allometric Growth ◽  
Male And Female ◽  
B Values ◽  
The Poor ◽  
Poor Water Quality ◽  
The Mean

The investigation of length-weight relationship and condition factor are very relevant indices to ascertain the health of fish in the water body. Length-weigh relationship and condition factor of Hyperopisus bebe (Lacepede, 1803) (Actinopterygii: Osteoglossiformes: Mormyridae) in River Galma, Zaria, Kaduna State, Nigeria, were assessed. The mean length and mean weigh in male and female were 26.703 cm +/- 0.51 cm and 25.32 cm +/- 0.898 cm; 158.2 g +/- 10.1 g and 95.91 g +/- 9.26 g, respectively. The exponent or growth pattern 'b' values for male and female were 2.009 and 2.176. The condition factor for male and female were 0.59 and 0.83, respectively. The negative allometric growth pattern and poor condition factor might be due to the poor water quality in the fish ecosystem and should be regarded with concern.

scholarly journals Length-weight Relationship, Growth Pattern and Condition Factor of the Silver Catfish Chrysichthys nigrodigitatus (Lacepède, 1803) from Lower River Benue, Nigeria

2018 ◽  
pp. 1-8
Author(s):  
Edem, Edem Thomas ◽  
Ofunama, Preye ◽  
Eyo, Victor `Oscar
Keyword(s):  
Population Dynamics ◽  
Growth Pattern ◽  
Sustainable Management ◽  
Condition Factor ◽  
B Value ◽  
Health Condition ◽  
Artisanal Fisheries ◽  
Allometric Growth ◽  
Silver Catfish ◽  
Weight Relationship

This study was carried out to evaluate the length-weight relationship, growth pattern and condition factor of the Silver catfish Chrysichthys nigrodigitatus from the Lower River Benue Makurdi, Nigeria. A total of 200 freshly caught specimens of C. nigrodigitatus were collected between July 2013 and September 2013 from the catches of the artisanal fisheries at landing points in Wadata Market, Makurdi. Results obtained showed that the “b” value for the males was 1.6067 while that of the females was 1.6791 and combined sexes 1.7371, indicating a negative allometric growth for this species. Correlation coefficient (r) obtained for males (0.9651), 0.9517 (females) and 0.9329 (pooled sexes) showed a positive significant relationship between length and weight of C. nigrodigitatus. Monthly mean condition factor (K), indicate that C. nigrodigitatus were in good physiological health condition. In conclusion, the baseline data on the length-weight relationship, condition factor of C. nigrodigitatus from the lower River Benue provided in this study is crucial in the sustainable management of this species in the River. Also, these findings will be useful in evaluating the population dynamics, stock and the aquaculture potential of C. nigrodigitatus for future purpose.

scholarly journals CONSTRAINTS FACED BY THE KIWI FRUIT FARMERS IN ILAM MUNICIPALITY AND SANDAKPUR RURAL MUNICIPALITY OF ILAM DISTRICT

2021 ◽  
Vol 2 (2) ◽  
pp. 54-61
Author(s):  
Manisha Giri ◽  
Ganesh Rawat ◽  
Anup Sharma
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Simple Random Sampling ◽  
Wild Animal ◽  
Plant Management ◽  
Kiwi Fruit ◽  
Rural Municipality ◽  
Male And Female ◽  
Technical Factors ◽  
Training And Pruning

The survey research entitled “Constraints faced by Kiwi fruit farmers in Ilam Municipality and Sandakpur Rural Municipality of Ilam District” was conducted to access the problem faced by kiwi fruit farmers of Ilam district. For the study, 80 households were selected using simple random sampling method. 40 households each from Ilam Municipality and Sandakpur Rural Municipality were selected. The study shows that the production is in slightly increasing rate in both Ilam Municipality and Sandakpur Rural Municipality. In both Sandakpur and Ilam areas, 25 and 20 percent farmers are producing seedlings in their own nursery respectively and rest of seedlings requirement is met from other nursery. The major problem was wild animal Kala at Ilam and Sandakpur. Unavailability of quality saplings, lack of male and female plant management in field, lack of modified storage and lack of refrigerator van were major constraints of Ilam Municipality. Lack of cemented support system, lack of training and pruning knowledge, lack of modified storage and poor connectivity of road were major constraints of Sandakpur Rural Municipality. Overall constraints of Ilam was technical factors whereas of Sandakpur was disease and pest constraints. Despite of all these constraints, the B:C ratio was 2.67 and 2.53 in Ilam and Sandakpur respectively, which means that the kiwi cultivation is profitable.

scholarly journals Length-weight Relationship, Condition Factor and Feeding Habits of Synodontis clarias (Linnaeus, 1758) in the Lower River Benue at Makurdi, Nigeria

2015 ◽  
Vol 6 ◽  
pp. 59-67
Author(s):  
P M Akombo ◽  
E T Akange ◽  
B O Amali ◽  
J N Shima
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Size Range ◽  
Regression Coefficient ◽  
Feeding Habits ◽  
Allometric Growth ◽  
Food Items ◽  
Weight Relationship ◽  
Wide Range ◽  
The Mean

The Length-Weight Relationship (LWR), Condition factor (K) and feeding habits of Synodontis clarias (Linnaeus, 1758) were investigated over a 24 month period from January, 2009 - December, 2010. A total number of 163 specimens comprising of 74 females and 89 males with the size range of 7.60 – 20.00cm and the mean of 12.72± 0.258cm were investigated. The weight ranged from 13.12 – 607.30g with the mean of 65.83± 0.897g. The LWRs for the females, males and combined sexes had the r values of 0. 8415, 0.9463 and 0.8703 respectively. The mean condition factor K was 3.3667, 2.6868 and 2.9954 for the females, males and combined sexes respectively. The regression coefficient b was 1.9408, 1.8799 and 2.1359 for the females, males and combined sexes respectively indicating negative allometric growth pattern for the species. Out of the 163 stomachs examined for food items, 88 (53.99%) were empty while 75 (46.01%) contained a wide range and varying quantities of food items indicating that S.clarias in River Benue is omnivorous.

scholarly journals KAJIAN BIOLOGI PERIKANAN PADA CUMI – CUMI Photololigo duvaucelii (d’Orbigny, 1835) YANG DIDARATKAN DI TPI TAMBAK LOROK SEMARANG Study on Fisheries Biology of Indian Squid (Photololigo duvaucelii d’Orbigny, 1835) in TPI Tambak Lorok Semarang

2019 ◽  
Vol 8 (1) ◽  
pp. 9-18
Author(s):  
Ayudiana Kusumawardani ◽  
Abdul Ghofar ◽  
Wiwiet Teguh Taufani
Keyword(s):  
Random Sampling ◽  
Condition Factor ◽  
Simple Random Sampling ◽  
Fishing Effort ◽  
The Body ◽  
Mantle Length ◽  
Sustainable Resources ◽  
Weight Relationship ◽  
Maturity Stages ◽  
Commercially Important

ABSTRAK Photololigo duvaucelii merupakan salah satu jenis cumi – cumi yang memiliki nilai ekonomis penting di TPI Tambak Lorok Semarang. Produksi cumi – cumi merupakan hasil tangkapan dari alam, upaya penangkapan yang semakin tinggi dapat menyebabkan penurunan stok sumberdaya cumi – cumi. Perlu adanya kegiatan yang dapat melestarikan sumberdaya agar tetap berkelanjutan. Tujuan penelitian ini adalah untuk mengetahui aspek biologi P. duvaucelii di Tambak Lorok yang meliputi hubungan panjang berat, faktor kondisi, tingkat kematangan gonad, indeks kematangan gonad dan karakteristik pertumbuhan alometri. Penelitian ini dilaksanakan pada bulan April – Mei 2018. Metode pengambilan sampel yang digunakan dalam penelitian ini adalah random sampling. Analisis data yang digunakan adalah regresi linier sederhana dari log ML(mantle length) dan log W (weight) umtuk mengetahui hubungan panjang beratnya. Nilai hubungan panjang berat P. duvaucelii mempunyai persamaan W = 0,024L1,580pada jantan dan W = 0,003L2,043 pada betina dengan nilai slope (b) 1,580 dan 2,043. Nilai slope tersebut menunjukkan bahwa pertumbuhan P. duvaucelii bersifat allometrik negatif.  Nilai faktor kondisi (Kn) 1,037 pada jantan dan 1,063 pada betina, nilai tersebut menunjukkan spesies ini tergolong memiliki badan yang kurus. Pertumbuhan panjang mantel (ML) P. duvauceliitumbuh lebih lambat dibanding organ tubuh lain, kecuali terhadap berat tubuhnya. Tingkat kematangan gonad yang paling dominan dari P. duvaucelii jantan dan betina adalah TKG I (belum matang gonad). ABSTRACT Photololigo duvaucelii is one of the commercially important squid resources in TPI Tambak Lorok Semarang. Squid production mainly comes from nature, high fishing effort can cause a decrease in squid resource stock. Cacth in squid fisheries must be accompanied by other activity which to be able to increase population whilst maintain sustainable resources of the squid. This work aimed to study on fisheries biological which included length – weight relationship, condition factor, gonad maturity and gonado somatic index, also to learn morphometry characteristic of the P. duvaucelii in Tambak Lorok Semarang. This study was done in April – Mei 2018. Sample were collected using simple random sampling. A simple linear regression was used to describe the relationship between the log ML (mantle length) and the log W (weight). The length – weight relationship was expressed as  W = 0,024L1,580 for male and W = 0,003L2,043 for female. Slope value (b) shows the growth of P. duvaucelii was negatively allometric. Conditon factor values in this research amounted to 1,037 for male and 1,063 for female, the range of this condition factor showed that the species has a flat body shape. Growth for mantle length (ML) of P. duvaucelii slower than other organs, except with the body weight. Maturity stages of P. duvauceliimale and female in this research dominated by maturity stages I (immature). 

scholarly journals Evaluation of Plant Protection Practices of Garlic Growers in Gaziantep Province

2020 ◽  
Vol 8 (9) ◽  
pp. 1942-1947
Author(s):  
Aydın Atakan ◽  
Oktay Erdoğan ◽  
Hülya Özgönen Özkaya
Keyword(s):  
Random Sampling ◽  
Chemical Control ◽  
Protective Clothing ◽  
Sampling Method ◽  
Plant Protection ◽  
Simple Random Sampling ◽  
Expiration Date ◽  
Pests And Diseases ◽  
Selection Of

This study was carried out to determine the plant protection practices of the garlic growers in Gaziantep province. For this purpose, a survey consisting of 20 questions and based on simple random sampling method was conducted with 81 growers in each of the districts of Araban, Oguzeli, Yavuzeli, Central, Nurdagı, Nizip and Karkamış districts in 2018. The data evaluated and expressed as percent ratio. According to the findings from the surveys, garlic growers stated that they preferred pesticide dealers suggestions for the selection and determination of doses of pesticides used in pests and diseases, they also stated that the price and expiration date were not an important factor in the selection of pesticides. In addition, it is found that growers avoid using the same pesticide continuously against same diseases and pests, they do not make any changes in there commended pesticide doses, pesticides leave residues on the products, they paid attention the time between the last application and harvest. It has been reported that the use of protective clothing and mask during the application by the growers is relative, they do not use pesticides as a mixture, they apply different processes to empty pesticide boxes. It was determined that garlic growers prefered chemical control and did not have knowledge about the concept of biopesticides.

scholarly journals POLA PERTUMBUHAN IKAN LAYANG (Decapterus ruselli) YANG DARATKAN DI PELABUHAN PERIKANAN LABUAN BAJO KABUPATEN DONGGALA PROVINSI SULAWESI TENGAH

2020 ◽  
Vol 2 (2) ◽  
pp. 119-132
Author(s):  
Mohamad Akbar ◽  
Mohamad Syahril ◽  
Renol ◽  
Deddy Wahyudi
Keyword(s):  
Growth Pattern ◽  
Sampling Method ◽  
Condition Factor ◽  
Good Condition ◽  
Sustainable Use ◽  
Linear Regression Method ◽  
Microsoft Excel ◽  
Average Value ◽  
Daily Data ◽  
Flying Fish

The growth pattern of flying fish (Decapterus ruselli) landed at the Labuan Bajo Fish Landing Base, Donggala Regency, has never been implemented. Based on this, research on estimating the growth pattern of flying fish (Decapterus ruselli) is necessary to support these fish resources' sustainable use. This research aimed to study the growth pattern of flying fish (Decapterus ruselli) in Labuan Bajo Fishery Port, Donggala. Flying fish were taken from the catch of fishers who landed their catch at Labuan Bajo Fishing Port, Donggala. Sampling was proportional to the stratified sampling method, namely groups of a small, medium, and large fish. Data were analyzed by a simple linear regression method using Microsoft Excel 2016. The results showed that the growth pattern of flying fish (Decapterus ruselli) landed in Labuan Bajo Fishery Port showed a tendency to be the same. The daily data showed a negative allometric growth pattern and a sigmoid (logistic model). The flying fish condition factor every day is good, where the average value is more than 1 (K> 1). The condition factor > 1 indicates that the flying fish caught around the waters of Banawa is in good condition.

scholarly journals Length-weight Relationship and Condition Factor of Auchenoglanis biscutatus in Kiri Reservoir, Adamawa State, Nigeria

2020 ◽  
pp. 23-29
Author(s):  
H. S. Kiman ◽  
A. Ja'afaru
Keyword(s):  
Growth Pattern ◽  
Physiological Condition ◽  
Condition Factor ◽  
The State ◽  
Allometric Growth ◽  
B Values ◽  
Weight Relationship ◽  
Regression Exponent

Length-weight relationship and condition factor of Auchenoglanis biscutatus obtained from Kiri Reservoir Adamawa State, Nigeria from July to December 2014 were studied. The objective of this study was to determine the state of physiological wellbeing of the fish in the reservoir. A total of 60 Auchenoglanis biscutatus were collected from fishermen catch and transported to the laboratory for analysis. Identification of fish was done using the Babatunde and Raji method. Length-Weight relationship and condition factor were calculated using the Froeze method. The results of the length - weight analyses showed that the entire fish exhibited a negative allometric growth pattern with regression exponent b values less than 3. The analyses showed that the condition factor of Auchenoglanis biscutatus were greater than 1 and implied that they were in good physiological condition.

scholarly journals Study of some biological aspects of the Nile Carp, Labeo niloticus (Pisces, Cyprinidae) from Khashm El-Girba Reservoir and Atbara River; Eastern Sudan: II, length-weight relationship, condition factor and age structure

2021 ◽  
Vol 3 (2) ◽  
pp. 7-14
Author(s):  
Mutasim Yousif Mohamed Abdalla ◽  
◽  
Abuelgasim Ibrahim Abdelhalim ◽  
Ahmed El Bedawi Adam ◽  
◽  
...  
Keyword(s):  
Age Structure ◽  
Growth Pattern ◽  
Condition Factor ◽  
Allometric Growth ◽  
Beach Seine ◽  
Weight Relationship ◽  
Biological Aspects ◽  
The Mean ◽  
The Relationship ◽  
Eastern Sudan

This study was undertaken to assess the length-weight relationship, condition factor and age structure, of the Nile carp, Labeo niloticus, in Khashm El-Girba reservoir and Atbara River, Sudan, from December 2015 to November 2016. Samples of fish were collected bi-monthly from three locations, namely; Um Aswad (Atbara River), El-Remila and El-Monaba (Khashm El-Girba reservoir), using beach seine nets of 1.2, 4.0 and 7.0 cm stretched mesh. Out of a total number of 1,190 specimens of L. niloticus collected from the three sampling sites, 189 specimens were randomly selected to determine age. The relationship between length and weight indicated negative allometric growth pattern in all three locations, where the slope (b) of the (LWR) was highly significant (p<0.001) and ranged from 2.178 to 2.885. The mean condition factor (K) varied monthly in the three locations with values ranging from 1.671 in Um Aswad (Atbara River) to 2.548 in El-Monaba (reservoir). Although the age of L. niloticus ranged from 0+ and 3+ years, yet, most of the studied fish are between age 0 + and 1+.

scholarly journals The relationship between Fear of COVID-19 and Loneliness among Yemeni students in China

2022 ◽  
pp. 115-132
Author(s):  
Aamer Aldbyani
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Positive Relationship ◽  
Simple Random Sampling ◽  
Research Community ◽  
Female Students ◽  
Male And Female ◽  
Descriptive Approach ◽  
The Relationship ◽  
Academic Year

The current research aims to identify the level of fear of Covid-19 and loneliness among Yemeni students in China, and to determine the relationship between them and whether there are differences in the responses of the research sample according to gender. The research adopted the descriptive approach, and the questionnaire was used as a tool for collecting data from the research sample. The research community consisted of Yemeni students in China who were enrolled in the 2021 academic year, the sample is (301) male and female students who were selected using a simple random sampling method. The results showed that the level of fear of Covid-19 and the degree of loneliness were high. There is a positive relationship between fear of COVID-19 and loneliness. There are differences in fear of Covid-19 according to the gender variable in favor of males, and differences in loneliness in favor of females.

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