scholarly journals Length-weight relationships and condition factors of four dominant fish caught by coral bubu trap on the west coast of Batam Island, Indonesia

2019 ◽  
Vol 5 (1) ◽  
pp. 1-10
Author(s):  
Ramses Ramses ◽  
Ismarti Ismarti ◽  
Fauziah Syamsi

One of the important components in aquatic ecosystems is fish diversity, which is a key factor in determining its functionality. The coral reef fish is one of the aquatic biotas susceptible to pollutants. Besides being able to influence the composition of fish diversity, it also has an impact on its biological factors, such as its length-weight and conditions. This study aims to examine the relationship of length-weight and condition factors of four dominant fishes caught, which are ecologically and economically important, namely Lates calcarifer, Parachaetodon ocellatus, Stephanolepis cirrhifer, and Chelmon rostractus.These fish species were dominantly caught using  bubu trap. The results of the length-weight relationship were b3 of all species, with an exponent value of 2.247 for the L. calcarifer; 1.932 for P. ocellatus; 2.74 for S. cirrhifer and 2.84 for C. rostractus. Fulton’s (K) condition factor for L. carifer ranged from 15.55-21.06 (average: 17.95), for P.ocellatus ranging from 27.30-35.59 (average: 30.38), for S. cirrhifer ranged from 17.58-27.23 (average: 21.29), and for C. rostractus ranging from 21.86-30.95 (average: 24.24). While the relative weight (Wr) condition factor average value of L. calcarifer is 102.53, P. ocellatus is 100.88, S. cirrhifer is 101.72, and C. rostractus is 101.11.  It is concluded that the fish had an allometrict growth pattern, and condition factor values indicate good aquatic environmental conditions and a balance between prey and predatorKeywords: Length-Weight; Growth Pattern; Condition Factors

2021 ◽  
Vol 10 (2) ◽  
pp. 171-180
Author(s):  
Sinta Nuria Munthe ◽  
Rusdi Machrizal

Julung-julung (Hemirhamphodon pogonognathus) merupakan salah satu spesies ikan asli Indonesia. Aek Mailil merupakan salah satu habitat ikan julung-julug (H. pogonognathus) yang berada di Kabupaten Labuhanbatu. Penelitian bertujuan untuk mendapatkan hubungan panjang-berat dan faktor kondisi ikan julung-julung (H. pogonognathus) yang hidup di Aek Mailil. Pengambilan data dilakukan mulai November 2020 hingga Januari 2021 dengan alat tangkap durung. Titik sampling ditetapkan atas informasi dari masyarakat Desa Bandar Kumbul. Hubungan panjang-berat dihitung dengan Linear Allometrik Model (LAM), sedangkan faktor kondisi dihitung dengan rumus Fulton (K) dan berat relatif (Wr). Pola pertumbuhan ikan julung-julung (H. pogonognathus) mendapatkan hasil alometrik negatif dengan nilai b 2,9371 (b<3). Nilai koefisien Fulton (K) 2,57 dan koefisien berat relatif (Wr) 103,07. Hal ini menunjukkan bahwa pola pertumbuhan ikan julung-julung (H. pogonognathus) allometrik negatif dengan panjang tubuh lebih cepat dibandingkan berat tumbuh. Nilai (K) menunjukkan bahwa Aek Mailil masih dalam keadaan seimbang dan baik untuk mendukung kehidupan ikan julung-julung (H. pogonognathus). Kata kunci: faktor kondisi; Hemirhamphodon pogonognathus; pola pertumbuhan ABSTRACTLong-Weight relationship and condition factors of Julung-Julung (Hemirhamphodon pogonognathus) in Aek Mailil, Labuhanbatu Regency, North Sumatera, Indonesia. Hemirhamphodon pogonognathus is one of Indonesia's native fish species. Aek Mailil is one of the habitats for julung-julung (H. pogonognathus) in Labuhanbatu Regency. This study aimed to determine the relationship between length-weight and condition factors of julung-julung (H. pogonognathus) living in Aek Mailil. Sampling was carried out from November 2020 to January 2021 using durung fishing gear. The sampling points were determined based on information from the local community of Bandar Kumbul Village. The relationship of length-weight is calculated using the Linear Allometric Model (LAM), while the condition factor is calculated using the Fulton formula (K) and relative weight (Wr). The growth pattern of julung-julung (H. pogonognathus) got a negative allometric result with a b value of 2.9371 (b <3). The value of the Fulton coefficient (K) 2.57 and the relative weight coefficient (Wr) 103.07. This means that Aek Mailil's waters are in a balanced state and can support the (H. pogonognathus) live.Keywords: condition factor; Hemirhamphodon pogonognathus; growth pattern


2018 ◽  
Vol 7 (1) ◽  
pp. 34
Author(s):  
Rinaldi Kuhu ◽  
Rose O.S.E Mantiri ◽  
John L. Tombokan

The purpose of this study was to determine the relationship between the length of weight, the growth patterns and the biological conditions of freshwater crayfish, Cherax quadricarinatus, in two different locations namely river and lake.  Sampling in Ralik river of Southeast Minahasa, used a sibu-sibu fishing gear (salapa) by traversing the river (opposite the current) from the point of the pick up location until the sampling point taken. As for sampling at Tondano Lake of Minahasa, it was carried out by buying directly from local fishermen who used bubu as a fishing tool. Furthermore, samples from these two locations were analyzed at the Freshwater Bioecology Laboratory of FPIK UNSRAT Manado.The results obtained from this study are the linear equation of the relationship of the length of weight in the river for male lobsters W = -1.761049+ 3.1153 log L, and W = -1.647836 + 2.957268 log L for female lobsters; in the lake W = -1,494 + 2,8495 log L for males and females W = -1,388 + 2,7198 log L. The growth pattern of male and female lobsters in river and males in the lake is isometric; whereas females in allometric lakes. The value of the biological condition of the river male losbters ranged from 0.90 to 1.14 with an average value of 1.004 ± 0.06, whereas in lake male lobster the value of the condition factor ranged from 0.83 to 1.23 with an average value of 1.004 ± 0.09. The value of the condition of river female lobsters with a range between 0.82-1.18 with an average value of 1.004 ± 0.89 and the condition factor of lake female lobsters ranged from 0.90 to 1.11 with an average value of 1.001 ± 0.06. This shows that the body condition of a fat lobsters were good enough. Keywords: Freshwater Lobster, Long-weight, Growth pattern, Factor of biological conditions. ABSTAKTujuan dari penelitian ini adalah untuk mengetahui hubungan panjang berat, pola pertumbuhan faktor kondisi biologis dari lobster air tawar Cherax quadricarinatus di dua lokasi berbeda yaitu sungai dan danau. Pengambilan sampel di Sungai Ralik, Minahasa Tenggara menggunakan alat tangkap sibu-sibu (salapa) dengan cara menyusuri sungai (berlawanan arus) dari titik lokasi pengambilan sampai batas pengambilan sampel dilakukan. Adapun pengambilan sampel di Danau Tondano Minahasa, dilakukan dengan cara membeli langsung dari nelayan lokal yang memakai bubu sebagai alat tangkap. Sampel-sampel yang diperoleh selanjutnya dianalisis di Laboratorium Bioekologi Perairan Tawar FPIK UNSRAT Manado.Hasil yang didapat dari penelitian ini yakni persamaan linier hubungan panjang berat di sungai untuk jantan W = -1,761049+ 3.1153 log L, dan W = -1,647836 + 2,957268 log L untuk betina; di danau W = -1,494 + 2,8495 log L untuk jantan dan betina W = -1,388 + 2,7198 log L. Pola pertumbuhan lobster jantan dan betina di sungai dan jantan di danau adalah  isometrik; sedangkan betina di danau allometrik. Nilai faktor kondisi biologis lobster jantan sungai berkisar antara 0,90-1,14 dengan nilai rata- rata 1,004±0,06, sedangkan lobster jantan danau berkisar antara 0,83-1,23 dengan nilai rata-rata 1,004±0,09. Nilai faktor kondisi lobster betina sungai berkisar antara 0.82-1.18 dengan nilai rata-rata 1,004±0,89 dan lobster betina danau berkisar antara 0,90-1,11 dengan nilai rata-rata 1,001±0,06. Hal ini menunjukkan bahwa kondisi badan lobster cukup baik. Kata kunci : Lobster air tawar, Panjang-berat, Pola pertumbuhan, Faktor kondisi biologis.


2020 ◽  
Vol 16 (1) ◽  
pp. 11-21
Author(s):  
Rivo Hasper Dimenta ◽  
Rusdi Machrizal ◽  
Siti Fatimah Siregar

This research was done to know the information about the Population of softshell turtle (A.cartilaginea) in Sababangunan Village-North of Padang Lawas District. The purpose of this study was to find out the growth pattern and the quality of physical-chemical water factor (environment parameters) whos showed river condition supporting life of A.cartilaginea in Sababangunan village-Padang Lawas Utara District. Determination of research location conducted by purposive sampling methode and sampling activity taken by using handsortir method. The analysis of data collect include measurement of morphometric (the range of length carapace, weight of body), the relationship of length-weight , growth pattern, and description of quality of physical-chemical water factor. Results showed the measurements of morphometric A.cartilaginea in range of carapace length were 10.5 - 28.5 cm with the weight of body were 190-1800 gr. The relationship models of carapace length-weights of A.cartilaginea in Sababangunan village were 0,016L2,234174, it’s describe the pattern of growth is allometric negative (b<3). The average value of river water quality conditions is still classified as within the range of tolerance in A.cartilaginea life.


2018 ◽  
Vol 6 (4) ◽  
pp. 480-489
Author(s):  
Ayu Munafi’ah ◽  
Pudjiono Wahyu Purnomo ◽  
Boedi Hendrarto

Perairan Bedono merupakan perairan bermangrove yang kawasannya terabrasi dan menyebabkan kawasan ini memebentuk badan air seperti estuarin. Kondisi ini mempengaruhi keanekaragaman dan pertumbuhan biota yang ada termasuk ikan. Penelitian ini bertujuan untuk mengetahui keanekagaman jenis ikan, hubungan panjang berat dan faktor kondisi ikan yang tertangkap. Penelitian ini dilaksanakan pada bulan Februari-Maret 2017. Metode penelitian yang digunakan adalah metode survey dengan teknik sampling haphazard. Stasiun penelitian 24 di bagi 4 kawasan. Pengukuran parameter panjang dan berat dilakukan untuk setiap jenis ikan yang tertangkap. Hasil penelitian terdapat 9 jenis ikan yang termasuk 9 famili antara lain Ikan Belanak (Mugilidae), Ikan Kiper (Scatophagidae), Ikan Bandeng (Chanidae), Ikan Gerabah (Sciaenidae), Ikan Lundu (Bagridae), Ikan Sembilang (Plotosidae), Ikan Laosan (Polynemidae), Ikan Juwi (Clupeidae), dan Ikan Janjan (Gobiidae). Hasil indeks keanekaragaman ikan secara deskriptif berkisar antara 1,09-2,0 yang termasuk tingkat rendah. Hasil analisis hubungan panjang berat setiap ikan b< 3 (allometrik negatif), kecuali ikan juwi b > 3 (allometrik positif), dan hasil analisis faktor kondisi berkisar antara 1,01-1,43 yang termasuk ikan kurang pipih (kurus). Bedono mangrove waters that affected by abrasion and this region is an estuarinearea. These conditions my affect the biodiversity and growth of aquatic organism including fish. This study aimed  to determine the diversity of species of fish, the relationship of weight and condition factor of the fish. This research was conducted in February-March 2017, and used a survey method with the haphazardly sampling method, in 24 stations in 4 regions. The length and weight parameters were measured to each fish spesies. The study found 9 species of fish, in 9 family, that was mulang fish (mango fish), goat fish (skutofagidae fish), milkfish (Chanidae), pottery fish (Sciaenidae), lundu (Bagridae), diplik fish(Plotosidae), laosan fish (Polynemidae), juwi fish (Clupeidae), and fish janjan (Gobiidae). The index of fish diversity are descriptively ranged from 1.09-2.0 which is classified as a low level. The results of the analysis was of the weight relationship of each fish b <3 (allometrik negative), except Juwi fish was b> 3 (allometrik positive), and the result of condition analysis between 1.01-1,43 which including fish less flat.


2018 ◽  
Vol 6 (1) ◽  
pp. 85
Author(s):  
Yosef Gerard Jamlean ◽  
Nego E. Bataragoa ◽  
Jhon L. Tombokan

C. quadricarinatus (red claw) has important economic value either for consumption or as ornamental crustacean, has been  cultivated, and introduced to many waterways outside its natural habitat. In Tondano lake, C. quadricarinatus has developed and become fishing target  using traps and spearguns.  The purpose of this survey is to describe the freshwater lobster catching using traps, and to know the length-weight relationships, growth pattern and condition factor. The study was expected to use as information on the presence of C. quadricarinatus Tondano Lake. Catches were red claw, C. quadricrinatus, marble sleeper Oxyeleotris marmorata, Mud gudgeon Ophieleotris aporos, Mozambique tilapia Oreochromis mossambicus and African sharptooth catfish Clarias Gariepinus. Length-weight relationship of C. quadricarinatus was W = -1.8005 + 4.2765 log L for males, W = -1.2978 + 3.6524 log L for females, respectively, and W = -1.5631 + 3.9848 log b for combined sexes. They had positive allometric (A +) growth. Condition factor ranged from 0.60-1.43 with an average of 1.071 ± 0.17 for males and 0.46-1.36 with an average of 1.027 ± 0.18 for females, 0.59-1.642 withan average of 1.22± 0.21.Keywords: fishing, length-weight, growth pattern, fishing gear, Kakas district, MinahasaAbstrakC. quadricarinatus (red claws) mempuyai nilai ekonomis penting baik komsumsi maupun sebagai krustasea hias dan  telah banyak di budidaya serta di introduksi ke banyak perairan  di luar habitat aslinya. Di Danau Tondano, C. quadricarinatus telah berkembang biak dan menjadi target penangkapan nelayan mengunakan alat tangkap bubu dan alat tangkap tura sejenis tombak sambil menyelam. Tujuan penelitinan ini ialah untuk mendeskripsikan penangkapan lobster air tawar C. quadricarinatus menggunakan alat tangkap bubu, hubungan panjang berat, pola pertumbuhan dan faktor kondisi. Hasil penilitian ini diharapkan dapat digunakan sebagai informasi keberadaan lobster air tawar C. quadricarinatus di Danau Tondano. Hasil tangkapan yang didapat adalah lobster air tawar, ikan Betutu, ikan Payangka, ika Mujair dan ikan Lele Dumbo. Hasil hubungan panjang berat lobster air tawar di dapat jantan : W=-1,8005+4,2765 log L, betina : W=-1,2978+3,6524 log L dan gabungan ( jantan & betina) : W=-1,5631+3,9848 log L. Pola pertumbuhan ketiganya ialah allometrik positif (A+) dan faktor kondisi jantan berkisar 0,60-1,43 dengan rata-rata1,071±0,17, betina berkisar 0,46-1,36 dengan rata-rata 1,027±0,18, dan gabungan (jantan dan betina) berkisar 0,59-1,642 dengan rata-rata1,22±0,21.Kata Kunci : Penangkapan, Hubungan panjang berat, Pola pertumbuhan, Kecamatan Kakas


During the last few years of his life Prof. Simon Newcomb was keenly interested in the problem of periodicities, and devised a new method for their investigation. This method is explained, and to some extent applied, in a paper entitled "A Search for Fluctuations in the Sun's Thermal Radiation through their Influence on Terrestrial Temperature." The importance of the question justifies a critical examination of the relationship of the older methods to that of Newcomb, and though I do not agree with his contention that his process gives us more than can be obtained from Fourier's analysis, it has the advantage of great simplicity in its numerical work, and should prove useful in a certain, though I am afraid, very limited field. Let f ( t ) represent a function of a variable which we may take to be the time, and let the average value of the function be zero. Newcomb examines the sum of the series f ( t 1 ) f ( t 1 + τ) + f ( t 2 ) f ( t 2 + τ) + f ( t 3 ) f ( t 3 + τ) + ..., where t 1 , t 2 , etc., are definite values of the variable which are taken to lie at equal distances from each other. If the function be periodic so as to repeat itself after an interval τ, the products are all squares and each term is positive. If, on the other hand, the periodic time be 2τ, each product will be negative and the sum itself therefore negative. It is easy to see that if τ be varied continuously the sum of the series passes through maxima and minima, and the maxima will indicated the periodic time, or any of its multiples.


2019 ◽  
Vol 53 (1) ◽  
pp. 75-82 ◽  
Author(s):  
A. S. Batubara ◽  
Z. A. Muchlisin ◽  
D. Efizon ◽  
R. Elvyra ◽  
M. Irham

Abstract The objective of the present study was to examine the growth pattern and condition factors of the naleh fish, Barbonymus gonionotus Bleeker, 1849 in Nagan River, Nagan Raya District, Aceh Province, Indonesia. The sampling was conducted for 12 months from January 2016 to December 2016 using the explorative survey method. The sampling locations were determined based on the information given by local fishermen. A total of 761 fish samples were collected during the study. The Linear Allometric Model (LAM), Fulton’s and Relative Weight conditions factors were utilized to analyze the length-weight relationship and condition factor of the fish using growth parameters. The results showed that the highest coefficient of b was recorded in December, where the b value of males were 3.82 and 4.23 for the females with the average b value of males and females were 2.92 indicating an isometric growth pattern. The average Fulton’s condition factor (K) was 2.28 and the average Relative weight (Wr) condition factor was 100.59. It is concluded that fish had the isometric growth pattern and based on K and Wr value, the result implies that the waters are still in a good condition. Furthermore, the availability of food sources, low competitors, and low predators indicate that the aquatic environment is in a stable condition.


Omni-Akuatika ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 1
Author(s):  
Rugaya Serosero ◽  
Sulistiono Sulistiono ◽  
Nurlisa A. Butet ◽  
Etty Riani

Coconut crab (Birgus latro) is a crustacean that has a large size until four kilograms. The study  aimed to analyze sex ratio and growth pattern including the relationship of thorax length - body weight, thorax width - body weight and cephalothorax length plus rostrum - body weight in Daeo (Morotai Island), Laigoma (South Halmahera District) and Fitako (North Halmahera District). The sex ratio was determined using χ2 test and the growth pattern was tested by the b value through t test. The results showed sex ratio of 1: 0.9 in Daeo (n = 581), 1: 0.6 in Laigoma (n = 24), and 1: 2 in Fitako (n = 31). The relationship of thorax length, thorax width and cephalothorax length plus rostrum with body weight were strongly correlated (R2> 70%). The growth pattern of coconut crab in Daeo was negative allometric, while in Laigoma and Fitako were negative allometric and isometric.


2020 ◽  
Vol 153 ◽  
pp. 01006
Author(s):  
Jalil ◽  
Achmar Mallawa ◽  
Faisal Amir ◽  
Safruddin

The size composition, length-weight relationship, and condition factor of Thunnus albacares were examined in Bone Bay. Sampling was conducted at two stations, i.e., Station I at Cimpu in Luwu Regency and Station II at Lonrae in Bone Regency between July 2018 and June 2019. 10246 and 2651 yellowfin tunas were captured in Station I and Station II, respectively. Measurement of the fork length ranged between 20 cm and 192 cm with an average length of 81,257 ± 33,456 cm in Station I, and between 26 to 162 cm with an average length of 95,479 cm in Station II. The weight measurement ranged between 0,35 and 99,21 kg with an average of 14,539 kg in Station I, and between 0,46 and 97,35 kg with an average of 26,978 kg in Station II. Calculation of the relationship was based on the formula W= 5,5−5FL2,7454 (R2 = 0,963) in Station I, and W=4,1−5FL2,9103 (R2 = 0,761) in Station II. The values of condition factor at Station I and Station II were 2,1395 and 3,4374, respectively. It is quite evident that the growth pattern of the yellowfin tunas at Bone Bay was negatively allometric, indicating that the length increased faster than the weight.


2003 ◽  
Vol 12 (03) ◽  
pp. 393-409
Author(s):  
Mbale Jameson ◽  
Xu Xiao Fei ◽  
Deng Sheng Chun

The relationship of Semantic Similarity of an Object as a Function of the Context (SSOFC) being the key factor in data integration is investigated. The SSOFC is a context-based system, which exploits the context of an object by utilizing the semantic similarity involved, in order to reconcile bottleneck conflicts (semantic) standing in the way of interoperability acquisition in heterogeneous systems. SSOFC is further re-enforced with the agents to equip architectural intelligence and facilitate the cooperative tasks, such as the versatility to pass, share, communicate, liaise, and negotiate the information among the architectural components in a human way. The SSOFC operates in semantic and schematic spaces that are linked with a projection facilitated by cooperative agents. In the Semantic Space, the semantic proximity (semPro) through its first component context captures the real world semantics from the local heterogeneous sources. Meanwhile, in Structural Space, the schema correspondences are paramount in order to capture structural similarities in an algebraic or mathematical formalism for reasoning and manipulation on the computer.


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