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Showing 1 to 20 of 79 for “"tuna"”.
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Behavioural Ecology of Large Tuna
… (Chapter 2). It then uses Atlantic bluefin tuna (Thunnus thynnus, ABT), large migratory apex predators with exceptional physiological capacity, as a model system to examine behavioural responses to stressors operating across contrasting temporal scales. Chapter 3 documents an opportunistic …
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Makna bahagia bagi penyandang cacat fisik (tuna daksa)
… tidak sempurna misalnya pada seorang penyandang tuna daksa. Apalagi bagi seorang remaja dimana seorang remaja pada umumnya membutuhkan penyesuaian sosial seperti pengaruh teman sebaya, adanya dukungan atau penolakan sosial. Bagi seorang remaja penyandang tuna daksa, adanya penerimaan di …
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The implementation of a management procedure approach to set catch limits for the Southern Bluefin Tuna and the Atlantic Bluefin Tuna
… approach to set catch limits for two bluefin tuna species: Southern bluefin tuna (SBT - Thunnus maccoyii ) and Atlantic bluefin tuna (ABFT - Thunnus thynnus). The thesis reviews possibilities and advances proposals for the implementation of this approach in two international tuna Commissions: …
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Diversity of larval tuna diets across the central equatorial Pacific
Understanding the feeding ecology of larval tuna is essential for predicting their recruitment and survival success as this directly supports the management of tuna populations across the changing ocean. To provide new insights into early-stage foraging dynamics, we investigated larval tuna gut …
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Environmental influences on tuna movement patterns in the Indian Ocean
The Indian Ocean Tuna Commission conducted a small-scale tagging programme (2002-2009) and also a large-scale tagging programme: the Regional Tuna Tagging Programme of the Indian Ocean (RTTP-IO, 2005-2009). Both tagging programmes known as the Indian Ocean Tuna Tagging Project (IOTTP), targeted …
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Tangled lines : Examining Western and Central Pacific Tuna Social-ecological Systems
… SES networks. Western and Central Pacific (WCP) tuna fisheries are faced with complex and interlinked social and ecological challenges including high seas management issues, setting sustainable limits, climate change impacts, human rights violations, and illegal, unreported, and unregulated …
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On the reproductive biology of the western Atlantic bluefin tuna, Thunnus thynnus
<p>The Atlantic bluefin tuna, Thunnus thynnus, is a highly migratory species capable of traversing great distances throughout the North Atlantic Ocean, but spawning is known to occur only in the Mediterranean Sea and the Gulf of Mexico/Straits of Florida. The regulatory body charged with managing …
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An investigation into effective management structure for tuna resources in the West Indian Ocean
Tuna fisheries in the coastal states of the West Indian Ocean (WIO) have been at the centre of the social, economic and political development of the region. Their significance in creating employment, providing food, and generating revenue for the people in the region cannot be overemphasized. To be …
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Analysis of volatile compounds, proximate composition, and fatty acids in Pacific bluefin tuna (Thunnus orientalis)
Pacific bluefin tuna (PBT; Thunnus orientalis) has grown significantly in popularity in recent years due to the globalization of Japanese cuisine. PBT is highly sought after for sushi and sashimi products due to its great quality and taste. Wild populations of this species have been affected by …
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Tracking diet and movement of Atlantic bluefin tuna (Thunnus thynnus) using carbon and nitrogen stable isotopes
<p>Atlantic bluefin tuna (ABFT; Thunnus thynnus) are important top predators in pelagic ecosystems. Understanding their diet and movements is necessary for proper management, but existing methods are costly and logistically challenging. Naturally occurring stable isotopes have been used to study …
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Somatic condition, growth and distribution of Atlantic bluefin tuna (Thunnus thynnus) in the Gulf of Maine
<p>Atlantic bluefin tuna (Thunnus thynnus), a highly migratory apex predator, utilize temperate feeding grounds to place their tissues into positive lipid balance following reproduction and subsequent migration to northern latitudes. Commercial fishermen target Atlantic bluefin tuna between June …
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Hubungan antara syukur dengan resiliensi pada siswa tuna rungu di SMALB-B Pembina Tingkat Nasional Lawang
… tinggi, demikian pula yang terjadi pada Siswa Tuna Rungu di SMALB-B Pembina Tingkat Nasional Lawang yang terlahir dengan ketidaksempurnaan fungsi mendengar dan berbicara. Resiliensi merupakan kemampuan dalam diri individu untuk beradaptasi secara positif dalam kondisi yang tidak menyenangkan …
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Biology of Albacore tuna (Thunnus alalunga, Bonnaterre 1788) off the South West Coast of South Africa
Albacore tuna (Thunnus alalunga) is a highly migratory species found in all of the worlds oceans. The origin of albacore south of Africa is in question. This species constituted 85% of catches of the South African commercial tuna fishing fleet from 2000-2009 and is an important species in …
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A STUDY OF MEDITERRANEAN BLUEFIN TUNA (Thunnus thynnus L.) WITH REFERENCE TO STOCK IDENTIFICATION AND MANAGEMENT STRATEGIES
The management of bluefin tuna (Thunnus thynnus) in the north Atlantic has been based on the assumption that there are two separate stocks (an eastern Atlantic stock, including the Mediterranean Sea and a western Atlantic stock). This hypothesis has never been scientifically confirmed. This study …
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Application of a DNA Mini-Barcoding System based on the Mitochondrial Control Region for the Identification of Raw and Processed Tuna Products
… identification methods are needed to combat tuna fraud, improve tuna stock regulation, and mitigate health risks associated with mislabeled tuna products. The objective of this study was to conduct a market survey of raw and processed tuna products using a DNA mini-barcoding system based on …
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Physicochemical properties and potential utilization of side raw materials of yellowfin (Thunnus albacares) and albacore (Thunnus alalunga) tuna
Tuna processing companies produce a lot of rest raw materials including skin, viscera, bones, heads, tails, trimmings, belly flaps, and dark meat, which are often irresponsibly disposed of. There is great potential to utilize these tuna raw materials and convert these as valuable products by …
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Diet of albacore (Thunnus alalunga) and yellowfin tuna (Thunnus albacares) off the south-west coast of South Africa
… yellowfin biomass, these two economically vital tuna species apply a considerable amount of predation pressure on prey communities off the South African coast. Nevertheless, little is known about their respective diets in this upwelling region. Fish Aggregating Devices (FADs), otherwise used …
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Experimental field studies and predictive modelling of PCB and PCDD/F levels in Australian farmed Southern Bluefin Tuna (Thunnus maccoyii).
Farmed Southern Bluefin Tuna (SBT) (Thunnus maccoyii) is an important export product for South Australia (SA). It is exported to Japan, China, Korea and the United States for the sushi and sashimi markets. The primary purpose of SBT farming in SA is to fatten wild-caught juvenile fish (2-4 years of …
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Establishing a weight-length baseline for evaluating changes in yellowfin tuna (Thunnus albacores) body condition in the Western Indian Ocean
… (Ws) equations were established for yellowfin tuna (Thunnus albacares) in the Western Indian Ocean and used as a baseline for calculating relative weight (Wr) indices. Length-weight data for yellowfin tuna were obtained from the Indian Ocean Tuna Commission (IOTC) for 1984 to 1991 and 2003 to …
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