Compilation of North Atlantic albacore tuna (Thunnus alalunga) fork length frequencies in 1 centimeter intervals from catches in the North Atlantic for the period 1956-2010

The development of the ecosystem approach and models for the management of ocean marine resources requires easy access to standard validated datasets of historical catch data for the main exploited species. They are used to measure the impact of biomass removal by fisheries and to evaluate the models skills, while the use of standard dataset facilitates models inter-comparison. North Atlantic albacore tuna is exploited all year round by longline and in summer and autumn by surface fisheries and fishery statistics compiled by the International Commission for the Conservation of Atlantic Tunas (ICCAT). Catch and effort with geographical coordinates at monthly spatial resolution of 1° or 5° squares were extracted for this species with a careful definition of fisheries and data screening. In total, thirteen fisheries were defined for the period 1956-2010, with fishing gears longline, troll, mid-water trawl and bait fishing. However, the spatialized catch effort data available in ICCAT database represent a fraction of the entire total catch. Length frequencies of catch were also extracted according to the definition of fisheries above for the period 1956-2010 with a quarterly temporal resolution and spatial resolutions varying from 1°x 1° to 10°x 20°. The resolution used to measure the fish also varies with size-bins of 1, 2 or 5 cm (Fork Length). The screening of data allowed detecting inconsistencies with a relatively large number of samples larger than 150 cm while all studies on the growth of albacore suggest that fish rarely grow up over 130 cm. Therefore, a threshold value of 130 cm has been arbitrarily fixed and all length frequency data above this value removed from the original data set.

Spatially explicit estimates of stock size, structure and biomass of North Atlantic albacore tuna (Thunnus alalunga) in the North Atlantic for the period 1967-1986, compiled from statistics about ICCAT fishery region L4

The development of the ecosystem approach and models for the management of ocean marine resources requires easy access to standard validated datasets of historical catch data for the main exploited species. They are used to measure the impact of biomass removal by fisheries and to evaluate the models skills, while the use of standard dataset facilitates models inter-comparison. North Atlantic albacore tuna is exploited all year round by longline and in summer and autumn by surface fisheries and fishery statistics compiled by the International Commission for the Conservation of Atlantic Tunas (ICCAT). Catch and effort with geographical coordinates at monthly spatial resolution of 1° or 5° squares were extracted for this species with a careful definition of fisheries and data screening. In total, thirteen fisheries were defined for the period 1956-2010, with fishing gears longline, troll, mid-water trawl and bait fishing. However, the spatialized catch effort data available in ICCAT database represent a fraction of the entire total catch. Length frequencies of catch were also extracted according to the definition of fisheries above for the period 1956-2010 with a quarterly temporal resolution and spatial resolutions varying from 1°x 1° to 10°x 20°. The resolution used to measure the fish also varies with size-bins of 1, 2 or 5 cm (Fork Length). The screening of data allowed detecting inconsistencies with a relatively large number of samples larger than 150 cm while all studies on the growth of albacore suggest that fish rarely grow up over 130 cm. Therefore, a threshold value of 130 cm has been arbitrarily fixed and all length frequency data above this value removed from the original data set.

Gamma-emitting radionuclides in tuna samples from the Tokyo Central Fish Market, 1962.

Mode of access: Internet.

Exclusive dealing and vertical integration : the efficiency of contracts in the tuna industry /

Item 535

Draft environmental impact statement : proposed amendments to regulations governing the taking of marine mammals associated with tuna purse seining operations.

Cover title.

Certain canned tuna fish : report to the President on investigation no. TA 201-53 under section 201 of the Trade act of 1974.

August 1984.

Tuna : competitive conditions affecting the U.S. and European tuna industries in domestic and foreign markets : report to the Committee on Finance, U.S. Senate, and the Committee on Ways and Means, U.S. House of Representatives, investigation no. 332-291 under section 332 of the Tariff Act of 1930

Mode of access: Internet.

Instruccion para el cultivo de la planta nopal ó tuna higuera, y cria de la cochinilla /

Mode of access: Internet.

Beskrifning öfwer swenska mynt och kongl. skåde-penningar : som til denna tid, antingen i stora cabinetter wårkeligen äro go̊mde, eller i böcker finnas afritade : tillika med efterrättelse om hwad i fremmande länder, med och emot swerige, under någon stempel utkommit : hwarjemte fo̊ljer fo̊rtekning på de, öfwer inhemske enskilte personer, präglade minnes-märcken /

Last item in table of contents starts on p. 370.

Firman John Bull & co.; och dess stora filialer: Canada, Australien, Nya Zeland och Sydafrika,

Mode of access: Internet.

Den stora hälsotrenden : En kvantitativ studie om hälsa och mat på sociala medier

Denna studie undersöker sociala mediers påverkan på människor med fokus på mat och hälsa. Med hjälp av en kvantitativ enkätstudie har vi undersökt hur och på vilket sätt de sociala medierna spelar in i hur människor äter. Fokus ligger på vilket medie människor i åldern 18 år och uppåt väljer för att få inspiration till hälsosam mat, i vilken grad sociala medier förändrat människors medvetenhet och intresse kring hälsa och mat samt huruvida den här påverkan upplevs som positiv (inspirerande) eller negativ (stress/förvirring). Resultatet visar att de sociala medierna inte tagit över som inspirationskälla då de traditionella medierna, så som tidskrifter, TV och böcker, visade sig vara vanligast för att inspireras och skaffa sig inspiration kring mat. De sociala medierna fungerar snarare som ett komplement och har större popularitet hos den yngre generationen. Vidare visar studien att sociala medier delvis bidragit till att öka medvetenhet och intresse kring mat och hälsa. Majoriteten angav att de snarare inspireras än känner stress/förvirring till de hälsobudskap kring mat som florerar på sociala medier och studien visade ett tydligt mönster att kvinnor är både mer negativt och positivt påverkade än männen.

Economic benefits of dolphins in the United States eastern tropical Pacific purse-seine tuna industry

This paper provides a profit-maximizing model with vessel-level dolphin mortality limits for purse seiners harvesting tunas in the eastern tropical Pacific Ocean. The model analytically derives the shadow price (estimated economic value) for dolphin mortality, the fishing-fleet size, and the annual tuna harvest as functions of a few key fishing parameters. The model also provides a statistical method to determine the accuracy of all needed parameter estimates. The paper then applies the model to the year 1996 and the period from 1985 to 1987. The shadow price measures the economic value to the US tuna fleet of dolphins lost in the harvesting of tuna. This value is essential when attempting to evaluate the economic benefits and costs to society of any action designed to reduce the mortality of dolphins in the harvesting of tuna in the eastern tropical Pacific Ocean.