Results 51 to 60 of about 465 (192)

close-rigged gear [PDF]

open access: yes, 1975
close a.The gear used in [longlining] experiments was of the same typem standard gear (50-52 hooks per line) ... some "close rigged" gear (80-82 hooks per line) and "far-away" gear ( 33-34 hooks per line).PRINTED ITEM DNE-citGMS Mar 75Used IUsed

core  

First record of young‐of‐the‐year smooth hammerhead (Sphyrna zygaena) in coastal waters of Galicia, northwest Spain

open access: yesJournal of Fish Biology, EarlyView.
Abstract The smooth hammerhead (Sphyrna zygaena) is typically considered an oceanic species and is only rarely observed in the cooler coastal waters of the northeastern Atlantic. On 20 December 2024, a juvenile S. zyganea was captured at 25 m depth in the inner Ría de Pontevedra (Rías Baixas, northwest Spain).
Xabier Pin   +3 more
wiley   +1 more source

The Effect of Gangion Floats on Bait-loss and Catch Rates in Longlining [PDF]

open access: yes, 1984
The use of gangion floats will expectedly reduces bait loss and increase catch rates in bottom longlining. Two floats of 5- and 8 g buoyancy are tested through flume tank experiments, underwater observations in the field and in comparative fishing trials
Bjordal, Åsmund
core  

Fish welfare in a changing world: New developments and current challenges

open access: yesJournal of Fish Biology, EarlyView.
Abstract The welfare of non‐human animals is central to ethical discussions on animal use, with increasing attention to fish welfare across research, aquaria, aquaculture, and fisheries. This paper reviews current theoretical approaches to animal welfare and recent advances in defining and assessing fish welfare since the seminal paper by Huntingford ...
Sonia Rey Planellas   +16 more
wiley   +1 more source

Distribution and ecology of the four Macrourus species by‐caught in the longline fishery at South Georgia, Southern Ocean

open access: yesJournal of Fish Biology, EarlyView.
Abstract Although Macrourus species are the main by‐catch across Southern Ocean longline fisheries, including around South Georgia, the lack of species‐specific data has hindered effective management and ecological understanding. Aggregation of macrourids at genus level masks critical interspecific differences in life‐history strategies and ...
José Abreu   +8 more
wiley   +1 more source

squid bait [PDF]

open access: yes, 1975
squid nIn setting 100 fifty-fathom lines or 5000 hooks of longlining gear, about 400 pounds of squid bait are used.PRINTED ITEM DNE-citGMS Mar 75Used I and SupUsed I and Sup4Not usedsquede, ~ hound, ~ jig, ground, ~ line, ~ school , squirt ...

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Pacific bluefin tuna (Thunnus orientalis) bycatch in the Atlantic Ocean

open access: yesJournal of Fish Biology, EarlyView.
Abstract A large tuna was hooked by a Japanese longline fishery in the high seas near the Republic of Namibia. This fishing ground is mainly utilized for Thunnus albacares, Thunnus obesus and Thunnus alalunga by Japanese tuna longliners. Because the tuna was larger than the common size of these species, the specimen was sampled for genetic species ...
Yohei Tsukahara   +4 more
wiley   +1 more source

dory banking schooners [PDF]

open access: yes, 1975
dory...the best longlining, particularly from August onward, could be obtained in the inshore area where the dory banking schooners had previously obtained autumn catches.PRINTED ITEM DNE-cit GMS Mar 75Used I and SupUsed I2Used Idory banker,BANKER ...

core  

Method for modeling of near-bottom longlines

open access: yesIzvestiya TINRO, 2017
Modeling technique for horizontal near-bottom longlines is presented. An example of this technique application for re-equipment of currently used bottom longlines to the near-bottom longlines is considered. Recommendations are given on choice of the buoys buoyancy, the anchor weight, and the weights for rigging of the near-bottom longline.
Victor I. Gabruk   +3 more
openaire   +3 more sources

Estimating Patagonian toothfish (Dissostichus eleginoides) length at first maturity from their age, sex and temperature experience around South Georgia

open access: yesJournal of Fish Biology, EarlyView.
Abstract Patagonian toothfish (Dissostichus eleginoides) are a long‐lived, slow‐growing deep‐sea species endemic to the Southern Hemisphere and the focus of longline fisheries managed to ensure sustainable exploitation. Managing the fisheries relies on accurate stock assessments that include pertinent biological and exploitation processes.
Jessica E. Marsh   +4 more
wiley   +1 more source

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