scholarly journals Karakteristik Pola Pertumbuhan dan Distribusi Ukuran Thunnus albacares, Bonnaterre, 1788 (Teleostei: Scombridae) yang Tertangkap dengan Pancing Ulur di Perairan Selatan Pulau Ambon

2021 ◽  
Vol 24 (1) ◽  
pp. 55-62
Author(s):  
Jacobus Bunga Paillin ◽  
Stany Rachel Siahainenia ◽  
Ruslan Husen Saban Tawari
Keyword(s):  
Size Distribution ◽  
Growth Pattern ◽  
Yellowfin Tuna ◽  
Total Weight ◽  
Thunnus Albacares ◽  
Tuna Fish ◽  
Length Growth ◽  
Weight Growth ◽  
Tuna Fishing

Handline is a fishing tool that is always used by fishermen in Passo Village to catch tuna fish in the southern waters of Ambon Island. In carrying out tuna fishing activities, these fishermen use two hand lines at the same time operating together but differ in their operating techniques. This research was conducted to know the size distribution and growth pattern of yellowfin tuna caught by handline (PUT and PUH) in the southern waters of Ambon Island. From the results of this study, the total yellowfin tuna caught using the PUT handline was 323 individuals with an average class length of 117.23 cm, while the yellowfin tuna caught using the PUH handline was 159 with an average class length of 118.1 cm. The average total weight of yellowfin tuna caught by the PUT handline was 21.26 kg. The average total weight caught using the PUH handline was 21.94 kg. The growth pattern of yellowfin tuna as a whole is negative allometric, which means that the length growth is faster than the weight growth. Pancing ulur merupakan alat tangkap yang selalu dipakai oleh nelayan di Desa Passo untuk menangkap ikan tuna di perairan selatan Pulau Ambon. Dalam melakukan aktivitas penangkapan ikan tuna, nelayan tersebut menggunakan dua pancing ulur (hand line) sekaligus  diopresikan secara bersama-sama namun berbeda dalam teknik pengoprasiannya. Penelitian ini dilakukan dengan tujuan untuk mengetahui distribusi ukuran dan pola pertumbuhan ikan tuna madidihang yang tertangkap dengan  pancing ulur (PUT dan PUH) di perairan selatan Pulau Ambon. Dari hasil penelitian ini total ikan tuna madidihang yang tertangkap dengan PUT sebanyak 323 individu dengan rata-rata kelas ukuran panjang yang tertangkap yaitu 117.23 cm, sedangkan tuna madidihang yang tertangkap menggunakan PUH sebanyak 159 ekor dengan rata-rata kelas ukuran panjang 118.1 cm. Rata-rata berat total tuna madidihang yang tertangkap dengan PUT yaitu  21.26 kg. rata-rata berat total yang tertangkap dengan PUH yaitu 21.94 kg. Pola pertumbuhan ikan tuna madidihang secara keseluruhan bersifat allometrik negatif hal ini berarti pertumbuhan panjang lebih cepat pertumbuhan beratnya.

scholarly journals KOMPOSISI JENIS DAN DISTRIBUSI UKURAN IKANPELAGIS BESAR HASILTANGKAPANPANCINGULURDI SENDANGBIRU, JAWATIMUR

2017 ◽  
Vol 3 (6) ◽  
pp. 377
Author(s):  
Ria Faizah ◽  
Aisayah Aisayah
Keyword(s):  
Species Composition ◽  
Size Distribution ◽  
Landing Site ◽  
Pelagic Fish ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Bigeye Tuna ◽  
Katsuwonus Pelamis ◽  
Individual Weight ◽  
Thunnus Obesus

Sendang Biru merupakan salah satu tempat pendaratan ikan pelagis besar di Jawa Timur. Penelitian tentang komposisi jenis dan ukuran ikan pelagis besar hasil tangkapan pancing ulur yang didaratkan di PPI Pondok Dadap, Sendang Biru, Jawa Timur, dilakukan pada bulanApril dan Oktober 2010. Hasil penelitian menunjukkan hasil tangkapan pancing ulur didominasi oleh jenis tuna (Thunnus albacares dan Thunnus obesus) 45%, cakalang (Katsuwonus pelamis) sebesar 38 %, dan lainnya (marlin, lemadang, lauro) sebesar 1,7 %. Ikan tuna yang didaratkan terdiri dari jenis yellowfin tuna (Thunnus albacares) dan bigeye tuna (T. obesus) dengan ukuran panjang cagakmasing –masing berkisar antara 40 - 170 cmFL dan 40 - 140 cmFL. Berat individumasing-masing berkisar antara 0.1 - 71 kg dan 0.5 - 43 kg. Sendang Biru is one of big pelagic’s landing site in East Java. Tuna on this research are caught by handline that landing in PPI Pondok Dadap, Sendang Biru, East Java. Research on the species composition and size distribution of big pelagic fish caught by handline were carried out during April and October 2010 at Sendang Biru, East Java. The result showed that Thunnus sp. are the most landed (45%) followed by Katsuwonus pelamis (38 %) and others (Xiphias gladius, Coriphaena sp., Elagatis bipinnulatus) of 1.7 %. The dominant fork lengthof Thunnus albacares and Thunnus obesus ranged from about 40 - 170 cm and 40 – 140 cm. Individual weight ranged between 0.1 - 71 kg and 0.5 - 43 kg respectivelly.

scholarly journals Size composition and length-weight relationships of the Yellowfin Tuna (Thunnus albacares) in Bone Bay

2020 ◽  
Vol 153 ◽  
pp. 01006
Author(s):  
Jalil ◽  
Achmar Mallawa ◽  
Faisal Amir ◽  
Safruddin
Keyword(s):  
Growth Pattern ◽  
Condition Factor ◽  
Average Length ◽  
Fork Length ◽  
Size Composition ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Weight Measurement ◽  
Weight Relationship ◽  
The Relationship

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.

scholarly journals Analysis of sizes and state of ovarian maturity in yellowfin tuna (Thunnus albacares) captured in the Gulf of Mexico

2021 ◽  
Vol 9 (10) ◽  
pp. 214-227
Author(s):  
Eduardo Alfredo Zarza Meza ◽  
Fabiola Garcés Díaz ◽  
Rodrigo Cuervo Gonzalez
Keyword(s):  
Gulf Of Mexico ◽  
Fork Length ◽  
Yellowfin Tuna ◽  
Production Costs ◽  
Maturity Stage ◽  
Thunnus Albacares ◽  
Progressive Development ◽  
The Pacific ◽  
Tuna Fishing ◽  
Ovarian Maturity

The yellowfin tuna Thunnus albacares is the second most important fishery in Mexico, due to its production costs and commercial value”  The species is fished on both coast of the country, with the Pacific Ocean presenting productions lightly higher than that of the Gulf of Mexico where, in spite of the above statement, tuna catches have recently shown a downward trend. For this reason, analysis is required of the size and stage of ovarian maturity and it is necessary to determine whether capture size is the primary reason behind the decline in the yellowfin tuna fishery Three tuna fishing trips were conducted in the Gulf of Mexico in order to gather data pertaining to fork length (Lf) and gonads Histological sections were obtained from the latter for analysis and determination of maturity stage. The results showed that males were predominant (40%) among the individuals for which the sex could be differentiated in the catches of T. albacares. The Lf values in the catch, were between 75 and 162 cm. However, variations in this parameter were found between sexes. The relationship between length and weight showed that the males are larger than the females, however, the equationgiven by the parameters of a=0.9406 and b= 3.4504, demonstrated growth of positive allometric type in both sexes. There was progressive development in the state of ovarian maturity over the months of capture. Chromatin nuclear (CN) was the most frequent phase within primary ovarian development (November, February, March), stages were present, although these did not present a direct relationship to fork length.

scholarly journals Pola Pertumbuhan Ikan Pari Kemejan (Rhynchobatus springeri) yang Didaratkan di Kubu Raya, Kalimantan Barat

2021 ◽  
Vol 1 (1) ◽  
pp. 29-35
Author(s):  
Fitra Wira Hadinata Hadinata ◽  
Sri Rahayu ◽  
Fitri Nurleha ◽  
Kezia Gloria A.R. ◽  
Benaya M.S.
Keyword(s):  
Growth Pattern ◽  
Economic Value ◽  
B Value ◽  
Female Fish ◽  
Male And Female ◽  
West Kalimantan ◽  
Length Growth ◽  
Weight Growth ◽  
A Value ◽  
Relationship Of

The whitespotted guitarfish (Rhyncobatus Springeri) resource is an important commodity and has high economic value. This study aims to determine the growth pattern of whitespotted guitarfish landed in the PPI Sungai Kakap. This research was conducted at the PPI Sungai Kakap, Sungai Kakap District, Kubu Raya Regency, West Kalimantan Province in July and August 2019. Data was collected by observation, surveys, and interviews. Data analysis of sex ratios, length, and weight was carried out on samples of whitespotted guitarfish. The results of the analysis of the sex ratio of male and female whitespotted guitarfish were 1.00:1.44, this shows that the number of male fish caught is relatively equal to the number of female fish caught. The results of the analysis of the length and weight relationship of whitespotted guitarfish, the a value is 20.643 and the b value is 0.6770. That value represents a negative allometric growth pattern for male and female fish. The negative allometrics explain that the length growth is faster than the weight growth. Generally, the increase of the length and weight is equal, but the whitespotted guitarfish has length growth faster than weight growth

scholarly journals Carbon monoxide residues in vacuum-packed yellowfin tuna loins (Thunnus Albacares)

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Raffaele Marrone ◽  
Celestina Mascolo ◽  
Giuseppe Palma ◽  
Giorgio Smaldone ◽  
Mariagrazia Girasole ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Electronic Absorption Spectra ◽  
Soret Band ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Tuna Fish ◽  
Fresh Fish ◽  
Considerable Debate ◽  
Confirmatory Analysis ◽  
High Level

The use of carbon monoxide (CO) in fresh fish has generated considerable debate. Carbon monoxide is used to treat fresh fish in order to retain its fresh red appearance for a longer period. It reacts with the oxy-myoglobin to form a fairly stable cherry red carboxy-myoglobin complex that may mask spoilage, because the CO-complex can be stable beyond the microbiological shelf life of the meat. The presence of CO in tuna fish (<em>Thunnus Albacares</em>) has been investigated by means of optical spectroscopy. Formation of the CO adduct can be easily detected by the combined analysis of electronic absorption spectra in their normal and second derivative modes, monitoring the intense Soret band at 420 nm. Samples were judged as CO treated when their levels were higher than 200 ng/g. Only two positive samples out of 29 analyzed were detected. The high level of uncertainty (0.30) of the method requires the use of more specific and sensitive methods for confirmatory analysis.

scholarly journals KOMPOSISI JENIS DAN UKURAN IKAN YANG DITANGKAP PADA RUMPON DENGAN PANCING ULUR DI SELAT MAKASSAR

2018 ◽  
Vol 9 (2) ◽  
pp. 157
Author(s):  
Wayan Kantun ◽  
Lukman Darris ◽  
Wayan Suma Arsana
Keyword(s):  
Species Composition ◽  
Size Distribution ◽  
Deep Sea ◽  
Yellowfin Tuna ◽  
Thunnus Albacares ◽  
Skipjack Tuna ◽  
Katsuwonus Pelamis ◽  
Fish Size ◽  
Indian Mackerel ◽  
Rastrelliger Kanagurta

<p align="center"><strong><em>ABSTRACT</em></strong><strong><em></em></strong></p><p class="Abstractisi">The objective of the  researcah is to analyze the species composition and size of fish caught at shallow and deep FAD at Makassar strait. In obtaining the data, the research is using survei method carried out for four months, starting April to July 2016 at Makassar strait. The data obtained was descriptively analyzed.  The research result presented that the number of fish caught at shallow FAD 568 fish (45.92%), consisted of skipjack tuna Katsuwonus pelamis (9.86%), Bullet tuna Auxis rochei (8.65%), Yellowfin Tuna Thunnus albacares (11.16%) and Indian Mackerel Rastrelliger kanagurta (16.25%). While 669 fish (54.08%) caught at deep FAD consisted of Katsuwonus pelamis (11.80%), and  Rastrelliger kanagurta (18.35%). The size spread of skipjack tuna (23-42 cm and 29-53 cm), Bullet Tuna (16.5-25.0 cm and 18.5-28.5 cm), Yellowfin Tuna (25-120 cm and 80-160 cm) and Indian mackerel (16-25 cm and 16-25 cm) for shallow and deep FAD respectively. The fish size distribution caught at shallow and deep FAD was skipjack tuna, whereas the  Auxis rochei rochei  and Thunnus albacares had bigger size distribution in deep sea FAD, while the  Rastrelliger kanagurta had relatively similar size distribution in shallow or deep sea FAD.   </p><p class="TubuhTulisanAll"><strong><em>Keywords:</em></strong><strong><em> </em></strong><strong><em> </em></strong><em>fish size, fish species composition,</em><em> </em><em>hand-line, shallow and deep sea FAD</em><em></em></p><p align="center"><strong>ABSTRAK</strong></p><p class="Abstrakisi">Penelitian ini bertujuan untuk menganalisis komposisi jenis dan ukuran ikan yang ditangkap pada rumpon laut dangkal dan rumpon laut dalam di Selat Makassar. Penelitian ini menggunakan metode survei dalam pengambilan data dan dilakukan selama 4 bulan mulai April-Juli 2016 di Selat Makassar. Data yang diperoleh dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa ikan yang ditangkap pada rumpon laut dangkal berjumlah 568 ekor (45,92%), terdiri dari ikan cakalang 9,86%, tongkol lisong 8,65%, tuna madidihang 11,16% dan kembung lelaki 16,25%. Ikan yang ditangkap pada rumpon laut dalam berjumlah 669 ekor (54,08%), terdiri dari ikan cakalang 11,80%, tongkol lisong 12,21%, tuna madidihang 11,72% dan kembung lelaki 18,35%. Sebaran ukuran ikan cakalang berkisar 23-42 cm dan 29-53 cm,  tongkol lisong 16,5-25,0 cm dan 18,5-28,5 cm, tuna madidihang berkisar 25-120 cm dan 80-160 cm serta ikan kembung lelaki berkisar 16-25 cm dan 16-25 cm masing-masing untuk rumpon laut dangkal dan rumpon laut dalam. Distribusi ukuran ikan yang ditangkap pada rumpon laut dangkal dan rumpon dalam dari jenis ikan cakalang, ikan tongkol lisong dan tuna madidihang memiliki distribusi ukuran lebih besar pada rumpon laut dalam, sedangkan ikan kembung lelaki baik pada rumpon dangkal dan dalam memiliki distribusi ukuran relatif sama.</p><strong>Kata kunci:</strong>  ukuran ikan, komposisi jenis ikan, pancing ulur, rumpon dangkal dan dalam

scholarly journals Pola pertumbuhan dan faktor kondisi madidihang, Thunnus albacares (Bonnaterre, 1788) di Samudra Hindia Bagian Timur

2018 ◽  
Vol 18 (1) ◽  
pp. 13
Author(s):  
Suciadi Catur Nugroho ◽  
Irwan Jatmiko ◽  
Arief Wujdi
Keyword(s):  
Indian Ocean ◽  
Growth Pattern ◽  
Condition Factor ◽  
Yellowfin Tuna ◽  
Growth Patterns ◽  
Thunnus Albacares ◽  
Relative Condition Factor ◽  
Length Increase ◽  
Fish Samples ◽  
One Year

Yellowfin tuna, Thunnus albacares (Bonnaterre, 1788) is one of the important economically for tuna species that spread in Indonesian waters, including in WPP 572 (Indian Ocean west coast of Sumatra). One important aspect relating to sustainable utilization is the growth pattern and the condition factor. This study aims to examine growth patterns and factor conditions of yellowfin tuna in the Eastern Indian Ocean. The number of fish samples measured in length and weight is 7,550 with length range from 76-176 cm (average: 129.03 cm) and mode at 150 cm. The length weight relationship of the species is W=4x10-5L2.842 (R2 0,957). In general the growth pattern of yellowfin tuna is negative allometric which means that the length increase is faster than the weight. The average relative condition factor of yellowfin tuna is 0.975 with a tendency to decrease along with the increasing of its length. The highest relative condition factor occurred at the length class of 80 cm with 1,061 and the lowest occurred at length 170 cm with 0.918. The monthly relative condition factor generally increased twice in one year from February to June and from July to December. AbstrakTuna madidihang, Thunnus albacares (Bonnaterre,1788), merupakan salah satu spesies tuna ekonomis penting dan ter-sebar di perairan Indonesia, termasuk di WPP 572 (Samudra Hindia bagian barat Sumatera). Salah satu aspek penting yang berkaitan dengan upaya pemanfaatan berkelanjutan adalah pola pertumbuhan dan faktor kondisi. Penelitian ini bertujuan untuk mengkaji pola pertumbuhan dan faktor kondisi ikan madidihang di Samudra Hindia Bagian Timur. Jumlah ikan contoh yang diukur panjang dan bobotnya adalah 7.550 ekor yang mempunyai sebaran panjang 76-176 cm (rata-rata 129,03 cm) dan modus 150 cm. Hubungan panjang bobot ikan tersebut adalah W = 4x10-5L2,842 (R2 0,957). Secara umum pola pertumbuhan madidihang bersifat allometrik negatif yang berarti bahwa pertambahan panjang lebih cepat daripada bobotnya. Faktor kondisi relatif rata-rata madidihang adalah 0,975 dengan kecenderungan menurun seiring bertambahnya ukuran panjang. Faktor kondisi relatif tertinggi terjadi pada kelas panjang 80 cm sebesar 1,061 dan terendah terjadi pada kelas panjang 170 cm sebesar 0,918. Faktor kondisi relatif bulanan secara umum mengalami dua kali peningkatan dalam satu tahun yaitu dari bulan Februari hingga Juni dan dari Bulan Juli hingga Desember.

scholarly journals HASIL TANGKAPAN IKAN MADIDIHANG (Thunnus albacares) DI SAMUDERA HINDIA BERDASARKAN HASIL TANGKAPAN YANG DIDARATKAN DI PELABUHAN BENOA, BALI

2017 ◽  
Vol 5 (4) ◽  
pp. 406-411
Author(s):  
Krisliyana Mia Anggarini ◽  
Suradi Wijaya Saputra ◽  
Abdul Ghofar ◽  
Bram Setyadji
Keyword(s):  
Indian Ocean ◽  
Data Processing ◽  
Growth Pattern ◽  
Condition Factor ◽  
Yellowfin Tuna ◽  
Survey Method ◽  
Thunnus Albacares ◽  
Microsoft Excel ◽  
Weight Relationship ◽  
The Indian Ocean

ABSTRAK Produksi ikan Madidihang yang cenderung menurun yang disebabkan oleh penangkapan yang berlebih dikhawatirkan dapat mengganggu kelestarian sumberdaya ikan Madidihang. Oleh sebab itu perlu adanya penelitian tentang hasil tangkapan ikan Madidihang. Hasil yang didapatkan dari penelitian diharapkan dapat memberi gambaran tentang kondisi ikan Madidihang di Samudera Hindia. Penelitian dilakukan pada bulan April-Mei 2016 di Pelabuhan Benoa. Penelitian ini bertujuan untuk mengetahui kondisi ikan madidihang melalui telaah panjang-bobot, faktor kondisi, ukuran pertama kali tertangkap, panjang asimtotik (L∞) ikan Madidihang di Samudera Hindia berdasarkan hasil tangkapan yang didaratkan di Pelabuhan Benoa, Bali. Metode yang digunakan yaitu metode survei. Pengolahan data menggunakan perangkat lunak microsoft excel. Hasil penelitian menunjukkan ukuran ikan Madidihang bulan April-Mei 2016 berkisar 70 – 178 dengan modus 112 cmFL. Persamaan hubungan panjang-bobot didapatkan W = 0,00002*FL2,966 dengan pola pertumbuhan isometrik. Faktor kondisi yang didapatkan antara 1,64 – 2,44, dan ukuran ikan pertama kali tertangkap 133 cmFL. Panjang asimtotik (L∞) = 190,05 cmFL. Berdasarkan ukuran ikan yang tertangkap dimana Lc > ½ L∞ dapat dinyatakan bahwa ukuran yang tertangkap telah layak tangkap. Kata Kunci : Ikan madidihang; hubungan panjang-bobot, faktor kondisi, ukuran pertama kali tertangkap ABSTRACT Yellowfin tuna production tends to decrease due to excess catching that is feared could interfere with the preservation of resources yellowfin tuna. Hence, it is necessary to do this research Catch Product of Yellowfin Tuna. Results obtained from the study are expected to give an idea of yellowfin condition in the Indian Ocean. This research was conducted in April-May 2016 at the Benoa Port. The aimed of this research was to determine condition of yellowfin tuna through the study of the length-weight relationship,condition factor, length at first capture, and asymptotic length (L∞) of yellowfin tuna in the Indian Ocean based on catches landed at the port of Benoa, Bali. This research used survey method. Data processing used the software of Microsoft Excel and FISAT II. The results have shown the size of the yellowfin tuna from April-May 2016 ranging from 70 – 178 with 112 cmFL. The equation of length weights correlation was obtained W = 0.00002*FL2,966 with isometric growth pattern. The condition factor obtained was between 1.64 to 2.44, and the size of the first caught fish is 133 cmFL. Asymptotic length (L∞) = 190.05 cmFL. Based on the size of fish caught where Lc > ½ L∞ can be stated that the size of which was caught had a decent catch.  Keywords: Yellowfin Tuna; length-weight relationship; condition factor, length at first capture

QUANTIFICATION OF TUNA FISH TARGET STRENGTH USING QUANTITATIVE ECHO SOUNDER

2009 ◽  
Vol 1 (1) ◽  
Author(s):  
Henry M. Manik
Keyword(s):  
Wave Reflection ◽  
Fork Length ◽  
Research Programme ◽  
Yellowfin Tuna ◽  
Target Strength ◽  
Bigeye Tuna ◽  
Tuna Fish ◽  
Thunnus Obesus ◽  
The Relationship ◽  
Echo Sounder

A preliminary research programme was carried out in order to study the acoustic wave reflection or target strength (TS) of tuna fish using a quantitative echo sounder (QES). The relationships between TS to fork length (FL) and swimbladder volume, for bigeye tuna (Thunnus obesus) and yellowfin tuna (T. albacares) are investigated. The TS of bigeye tuna was about 3 dB higher than yellowfin tuna when comparing species at the same size. The result can be correlated to the swimbladder volume differencebetween species. The relationship between TS and swimbladder volume was quantified for both species.Keywords: tuna fish, target strength, quantitative echo sounder

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