Results 51 to 60 of about 34,528 (205)
Preliminary observations on the use of a frame trawl in hydroacoustic surveys [PDF]
, 1999 Thirteen hauls were made during the hydroacoustic survey of the Ugandan waters of Lake Victoria from 7-19 February 1999. Ten of the hauls were made above the oxycline which was clearly visible as a strong echo on the echogram at between 25 and 35 m depth
Bassa, S., Tweddle, D.
core
Frontiers in Marine ScienceLong-term fishery-independent surveys provide a wealth of information on fisheries stocks that inform stock assessments. One of the strengths of these surveys is that the design and methods are consistent through time.
Adam G. Pollack +9 more
doaj +1 more source
A nursery site of the Alaska skate (Bathyraja parmifera) in the eastern Bering Sea [PDF]
, 2008 A nursery site for the Alaska skate (Bathyraja parmifera) was sampled seasonally from June 2004 to July 2005. At the small nursery site (~2 km2), located in a highly productive area near the shelf-slope interface at the head of Bering Canyon in the ...
Hoff, Gerald R.
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, 2023 The present document is the 4th edition of the survey protocol. The manual has its origin in national manuals for offshore beam trawl surveys, and can be considered the public version of the national manuals.
de Boois, Ingeborg J. +7 more
openaire +3 more sources
Известия ТИНРО, 2018 The bottom trawl survey (430 stations) was conducted over the shelf and continental slope in the Russian sector of the Japan Sea (total depth range 10–750 m) on April 1 — July 8, 2015.
N. V. Kolpakov +2 more
doaj +1 more source
The bycatch composition of shrimp trawl fishery in the Oman coastal waters, the Arabian Sea [PDF]
Acta Ichthyologica et Piscatoria, 2015 Background. Shrimps are one of the most valuable marine resources of Oman and shrimp fisheries is greatly contributing to the national economy, and sustainability of traditional fisheries villages. However, the shrimp trawl fishery has one of the highest
J.M. Al-Mamry +3 more
doaj +3 more sources
Results of abundance surveys of juvenile Atlantic and gulf Menhaden, Brevoortia tyrannus and B. patronus [PDF]
, 1989 The estuarine populations of juvenile Atlantic and gulf menhaden (Brevoortia tyrannus and B. patronus) were sampled during two-boat, surface-trawl, abundance surveys extensively conducted in the 1970s.
Ahrenholz, Dean W. +2 more
core
Scientia Marina, 2002 The MEDITS-99 sampling was performed along all the Iberian Peninsula coasts of the western Mediterranean (from the Alborán Sea to Cape Creus) in a space-scale of 1000 Km N-S, at depths ranging between 27-790 m.
Joan E. Cartes +6 more
doaj +1 more source
First record of Epigonus constanciae (Giglioli, 1880), (deepwater cardinalfish) (Osteichthyes: Epigonidae), from Aegean Sea, Turkey [PDF]
Acta Ichthyologica et Piscatoria, 2007 Background. Five specimens of Epigonus constanciae (Giglioli, 1880) (deepwater cardinalfish) were captured first time during a bottom trawl survey in Sigacik Bay and off Karaburun, Aegean Sea.
O. Özaydın +3 more
doaj +3 more sources
Известия ТИНРО, 2014 New database (DB) is presented of 224 fishery-independent bottom trawl surveys (32699 trawl stations) conducted in the last 34 years in the North Pacific and adjacent regions - the Bering, Okhotsk, and Japan/East.
Igor V. Volvenko
doaj +1 more source