نتایج جستجو برای: long tail tuna fish

تعداد نتایج: 918343  

2014
Xuefang Wang Yong Chen Samuel Truesdell Liuxiong Xu Jie Cao Wenjiang Guan

Fish aggregation devices (FADs) have been used extensively in the tuna purse seine fishery since the 1980s. This long-term modification of natural habitat has generated discussions as to whether FADs impact movement patterns of tuna species. We examined this question using data collected from the skipjack tuna (Katsuwonus pelamis) fishery. We used the longitudinal gravitational center of catch ...

2017
Eric A Lewallen Andrew J Bohonak Carolina A Bonin Andre J van Wijnen Robert L Pitman Nathan R Lovejoy

Two-wing flyingfish (Exocoetus spp.) are widely distributed, epipelagic, mid-trophic organisms that feed on zooplankton and are preyed upon by numerous predators (e.g., tunas, dolphinfish, tropical seabirds), yet an understanding of their speciation and systematics is lacking. As a model of epipelagic fish speciation and to investigate mechanisms that increase biodiversity, we studied the phylo...

2014
Bahar Ormen Nesrin Turker Nurbanu Sezak Zerrin Kara Figen Kaptan Tuna Demirdal

156. Cost Analysis of Ertapenem Therapy for Urinary Tract Infections and Assesment of Its Suitability for Outpatient Paranteral Antibiotic Therapy in Turkey Bahar Ormen; Nesrin Turker; Nurbanu Sezak; Zerrin Kara; Figen Kaptan; Tuna Demirdal; Infectious Diseases and Clinical Microbiology, Izmir Katip Celebi University Ataturk Training and Research Hospital, Izmir, Turkey; Infectious Diseases and...

2010
Telmo Morato Simon D. Hoyle Valerie Allain Simon J. Nicol

BACKGROUND Seamounts have been identified as aggregating locations for pelagic biodiversity including tuna; however the topography and prevailing oceanography differ between seamounts and not all are important for tuna. Although a relatively common feature in oceanic ecosystems, little information is available that identifies those that are biologically important. Improved knowledge offers oppo...

2015
Yu-jin Zhao Ye Hu Hong-yu Luo

Investigating the influence of plastein reaction on reducing the bitterness and offending smell of protein hydrolysates from yellowfin tuna offal. Protein hydrolysates of yellowfin tuna offal was prepared firstly, then the factors including pH value, kinds of enzymes, temperature and substrate concentration on influencing the nitrogen recovery and bitterness were separately evaluated and the co...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2011
Douglas A Syme Robert E Shadwick

Fishes with internalized and endothermic red muscles (i.e. tunas and lamnid sharks) are known for a stiff-bodied form of undulatory swimming, based on unique muscle-tendon architecture that limits lateral undulation to the tail region even though the red muscle is shifted anteriorly. A strong convergence between lamnid sharks and tunas in these features suggests that thunniform swimming might b...

2006
Edward Glazier

Introduction This article summarizes key findings from two recently completed Pelagic Fisheries Research Program (PFRP) projects, each designed to examine change in Hawai‘i’s small-boat commercial handline fisheries. The first study focused on factors associated with diminished activity in the ika-shibi fishery, a long-standing and once-lucrative yellowfin and bigeye tuna fishery specific to Ha...

Journal: :Proceedings. Biological sciences 2011
H A Shiels A Di Maio S Thompson B A Block

Bluefin tuna have a unique physiology. Elevated metabolic rates coupled with heat exchangers enable bluefin tunas to conserve heat in their locomotory muscle, viscera, eyes and brain, yet their hearts operate at ambient water temperature. This arrangement of a warm fish with a cold heart is unique among vertebrates and can result in a reduction in cardiac function in the cold despite the elevat...

The effects of n-3 highly unsaturated fatty acids (n-3 HUFA) were studied on Beluga (Huso huso) fish larvae by feeding fish larvae with live food  enriched with 4 different oils (ICES 30/4, tuna eye oil, flaxseed oil and linseed oil) containing different levels of n-3 HUFA including 27.19, 20.33, 12.71 and 0.39 mg g-1 dry weight of oil, respectively. Fish larvae weighing 30.00±2.00 mg were rand...

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