Results 11 to 20 of about 4,267,615 (263)

Relevance of using the equipment for control of fishing gear to reduce inaccuracy in evaluation of marine organisms abundance

Известия ТИНРО, 2016
Geometric parameters of the bottom trawl DT 27.1/24.4 were tested aboard RV TINRO in the Bering Sea using the acoustic equipment «Scanmar» (Norway). Possible errors in the estimates of marine organisms abundance by bottom trawl survey are calculated for ...
Egor A. Zakharov, Pavel O. Emelin
doaj   +1 more source

Design and redesign of a bottom trawl survey in Chesapeake Bay, USA

Frontiers in Marine Science, 2023
Fisheries-independent surveys that reliably sample a broad size range of exploited and ecologically important species provide valuable data in support of fisheries management and ecosystem science.
Robert J. Latour, James Gartland, Christopher F. Bonzek   +2 more
doaj   +1 more source

Depth trajectory and performance of a trawl used for an international bottom trawl survey in the Mediterranean

Scientia Marina, 2002
An international bottom trawl survey (the MEDITS programme) has been carried out every year in the Mediterranean since 1994. During each survey, about 1000 hauls are done by a fleet of 8 to 11 vessels from 10 to 800 m depth, applying a unique ...
Jacques Bertrand, Iole Leonori, Pierre Yves Dremière, Giulio Cosimi   +3 more
doaj   +1 more source

Investigating gear and seasonal effects in experimental trawl surveys: The case of Galeus melastomus Rafinesque, 1810 (Chondrichthyes, Scyliorhinidae) in the South of Sicily (Central Mediterranean)

Egyptian Journal of Aquatic Research, 2017
Mediterranean young-fish oriented experimental bottom trawl surveys represent a precious source of information on both past and current standing stocks and their life history traits and exploitation state.
T. Bottari, P. Rinelli, S. Ragonese
doaj   +1 more source

Genetic evidence for wide distribution of the alien prawn-goby, Vanderhorstia mertensi (Actinopterygii: Perciformes: Gobiidae), along the northeast Mediterranean [PDF]

Acta Ichthyologica et Piscatoria, 2009
Vanderhorstia mertensi Klausewitz, 1974, is a recently acknowledged alien fish in theMediterranean Sea, hitherto observed only from Fethiye Bay, Turkey.
M.B. Yokes, M. Bilecenoglu, M. Goren, B.S. Galil, A. Diamant   +4 more
doaj   +3 more sources

Some updates to the method for calculation of parameters of bottom trawl system

Известия ТИНРО, 2016
The method for calculation of geometric parameters of trawl system proposed by F.I. Baranov is analyzed. The calculation includes evaluation of spacer force and drag for all elements of trawl system and solution of transcendental equation to find a ...
Egor A. Zakharov, Oleg N. Kruchinin
doaj   +1 more source

Prospects for the pink salmon fishery in the Russian waters of the Bering and Okhotsk Seas in 2023 based on analysis of trawl surveys of the juveniles aboard RV TINRO and RV Professor Kaganovsky in autumn 2022

Известия ТИНРО, 2023
Modern technique of counting pink salmon juveniles in trawl surveys by two research vessels simultaneously makes it possible to cover the surveyed area in a short time that excludes repeated counts of actively migrating fish at adjacent transects.
A. A. Somov, E. A. Shevlyakov, A. N. Starovoitov, V. A. Shevlyakov, N. A. Dederer, I. V. Melnikov   +5 more
doaj   +1 more source

Geographical patterns of seabird attendance to a research trawler along the Iberian Mediterranean coast

Scientia Marina, 2003
The attendance of seabirds to a research trawler along the Mediterranean coast of the Iberian Peninsula was monitored during six demersal surveys (MEDITS project). Cruises were performed in late spring during the period 1994-1999.
Pere Abelló, José Manuel Arcos, Luis Gil Sola   +2 more
doaj   +1 more source

Improvement of methods for estimation of catchability for trawl survey systems with use of hydroacoustic means (on example of walleye pollock in the Okhotsk Sea)

Известия ТИНРО, 2015
In commercial fishery, catching properties of fishing gears are developed mostly for effective catch of fish, rather than for precise measurement of fish distribution density in water, so a problem of catchability exists and this parameter should be ...
Mikhail Yu. Kuznetsov, Vladimir I. Poljanichko, Igor A. Ubarchuk   +2 more
doaj   +1 more source

Fishing Gears in Sarawak: A Preliminary Survey [PDF]

E3S Web of Conferences
Unique to Sarawak, the fishing gears double-rig trawl, paka, panau, and rantau were gears that could only be found here. The focus of the present study was to catalog the diversity of fishing equipment across two regions, Wilayah II (Belawai, Daro, Mukah,
Maidin Mohd Samsul Rohizad, Harun Nadiayatul Atikah, Mustapha Mastura, Abdul Wahab Abdullah, Norhanida Daud, Jamil Musel   +5 more
doaj   +1 more source