Results 41 to 50 of about 34,528 (205)

Using experiments and expert judgment to model catchability of Pacific rockfishes in trawl surveys, with application to bocaccio (Sebastes paucispinis) off British Columbia [PDF]

open access: yes, 2010
The time series of abundance indices for many groundfish populations, as determined from trawl surveys, are often imprecise and short, causing stock assessment estimates of abundance to be imprecise.
McAllister, Murdock K.   +2 more
core  

Results of complex surveys in the East Siberian Sea in August 2015

open access: yesИзвестия ТИНРО, 2016
Data on oceanographic conditions, composition of plankton communities, benthic and demersal fish and invertebrates in the southern East Siberian Sea are presented by results of the complex survey conducted in August 2015, The bottom trawl survey assessed
Igor I. Glebov   +6 more
doaj   +1 more source

Alternative sampling and estimation methods for multispecies trawl surveys [PDF]

open access: yes, 2004
Thesis (Ph.D.) University of Alaska Fairbanks, 2004Multispecies demersal trawl surveys are used in the United States and internationally to estimate the relative abundance of commercial and non-commercial fish species.
Dressel, Sherri Christine
core  

The Diversity of Fisheries Based Livelihoods in the Berau Delta, East Kalimantan [PDF]

open access: yes, 2016
Fisheries based livelihoods in the Berau Delta are diverse. The everyday life of small-scale fishers shows that gear diversification, changing fishing gear over a lifetime and practical knowledge to access good fishing grounds in the rich coastal waters ...
Gunawan, B. I. (Bambang)
core   +3 more sources

Modelling the effects of more selective trawl nets on the productivity of European hake (Merluccius merluccius) and deep-water rose shrimp (Parapenaeus longirostris) stocks in the Strait of Sicily

open access: yesScientia Marina, 2018
Single-species Gadget models were used to assess the effects of using a sorting grid mounted on the traditional trawl net used by Sicilian trawlers to exploit the deep-water rose shrimp in the Strait of Sicily.
Sergio Vitale   +8 more
doaj   +1 more source

First Record of the Ragged-tooth Shark, Odontaspis ferox, off the U.S. Atlantic Coast [PDF]

open access: yes, 1998
On 11 September 1994, a large shark was captured and later identified as the ragged-tooth shark, Odontaspis ferox (Risso). The shark was captured during routine bottom trawl survey operations onboard the NOAA R/V Albatross IV, approximately 25 n.mi ...
Sheehan, Timothy F.
core  

Monitoring of seafloor litter on the Dutch continental shelf : International Bottom Trawl Survey 2021, Dutch Beam Trawl Survey 2020

open access: yes, 2021
The Marine Strategy Framework Directive (MSFD) requires EU Member States to develop programmes of measures that aim to achieve or maintain Good Environmental Status (GES) in European seas. In order to be able to evaluate the quality status of marine waters on a regular basis and the effects of the measures taken, monitoring programs for MSFD ...
Joey Volwater, Ralf van Hal
openaire   +3 more sources

Microplastics on the Menu: Plastics Pollute Indonesian Manta Ray and Whale Shark Feeding Grounds

open access: yesFrontiers in Marine Science, 2019
The implications of plastic pollution, including microplastics, on marine ecosystems and species are increasingly seen as an environmental disaster. Yet few reports focus on filter-feeding megafauna in regions heavily impacted by plastic pollution, such ...
Elitza S. Germanov   +13 more
doaj   +1 more source

Two scales of distribution and biomass of Antarctic krill (Euphausia superba) in the eastern sector of the CCAMLR Division 58.4.2 (55°E to 80°E).

open access: yesPLoS ONE, 2022
Regular monitoring is an important component of the successful management of pelagic animals of interest to commercial fisheries. Here we provide a biomass estimate for Antarctic krill (Euphausia superba) in the eastern sector of the Commission for the ...
Martin J Cox   +11 more
doaj   +1 more source

Barriers to Achieving Conservation Engineering Goals in Commercial Trawl Fisheries

open access: yesFrontiers in Marine Science, 2022
The advancement of conservation practices in global trawl fisheries has been impeded in part by a lack of a collective understanding of the most relevant and broad-scale knowledge-needs, along with the identification of potential barriers to addressing ...
Robert Murphy   +4 more
doaj   +1 more source

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