Results 41 to 50 of about 23,190 (220)

Disentangling the Drivers of a Piscivorous Intra‐Annual Cohort and the Contributions of Three Cohorts to Early‐Year Class Strength in Pikeperch (Sander lucioperca)

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Using pikeperch (Sander lucioperca) as a model species, we investigated the factors influencing fluctuations in the abundance of piscivorous intra‐annual cohorts and assessed the role of three distinct cohorts: extremely small (ES), ordinary (or mid‐sized) fingerlings, and piscivorous in shaping year‐class strength.
Million Tesfaye   +21 more
wiley   +1 more source

Standardization of CPUE for walleye pollock in the Okhotsk Sea with inclusion of some environmental factors

open access: yesИзвестия ТИНРО, 2020
Catch of walleye pollock by Russia is the highest in the northern Okhotsk Sea where on average 0.94 million metric tons were caught annually in the period between 1962 and 2017, or around 24 % of the total yield of Russian fishery.
V. V. Kulik   +2 more
doaj   +1 more source

The effect of long term exploitation by the gill net fishery on the multispecies fish stocks in Kainji Lake, Nigeria, 1969-1997 [PDF]

open access: yes, 1997
The findings are presented of an assessment made of the gillnet fishery in Kainji Lake, Nigeria from 1969 to the present, on the basis of data sets from commercial and experimental gillnet fishing, with the purpose to detect trends in some key fishery ...
Du-Feu, T.A., Seisay, M.D.B.
core  

Using Catch Data to Estimate Changes in Global Commercial Abalone Abundance

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Changes in global wild capture production of abalone are explored to infer potential changes in biological stocks. The study found that 77% (or 10 out of the 13) of the countries that reportedly caught abalone in the wild have experienced declines in catches between 1980 and 2023, and on aggregate catch declined by almost 83% between 1980 and ...
Douglas Crookes
wiley   +1 more source

Fisheries statistical bulletin, Kainji Lake, Nigeria, 1998 [PDF]

open access: yes, 1999
A tabulated summary is presented of the main fisheries data collected to date (1998) by the Nigerian-German Kainji Lake Fisheries Promotion Project, together with a current overview of the fishery.

core  

Environmental Drivers of Jumbo Squid During Fishery Collapse in the Gulf of California (2019–2024)

open access: yesFisheries Oceanography, EarlyView.
ABSTRACT The jumbo squid (Dosidicus gigas) is a cephalopod endemic to the eastern Pacific with significant ecological and economic importance. Its exploitation in the Gulf of California (GC) peaked in the 1990s, with catches exceeding 100,000 tons, but collapsed in 2009 and virtually disappeared by 2015, largely due to environmental changes and ...
Mario Vásquez‐Ortiz   +5 more
wiley   +1 more source

Some statistical aspects of the long-term gill net monitoring programme for pike Esox lucius in Windermere (English Lake District) [PDF]

open access: yes, 2000
For more than 55 years, data have been collected on the population of pike Esox lucius in Windermere, first by the Freshwater Biological Association (FBA) and, since 1989, by the Institute of Freshwater Ecology (IFE) of the NERC Centre for Ecology and ...
Paxton, Charles, Winfield, Ian
core  

Genes, fish and fisheries: translating science into policy

open access: yesJournal of Fish Biology, EarlyView.
Abstract The 2024 Annual Symposium of the Fisheries Society of the British Isles reviewed the burgeoning impact of ‘omics’ technologies on fish ecology, management and forecasting. As with life sciences more generally, major advances in speed, cost‐effectiveness and breadth of applications in ‘omics’ has had profound societal and environmental impacts.
Gary R. Carvalho
wiley   +1 more source

Assessment of the efficiency of Funnel net and Hokkaido traps for Astacus leptodactylus Eschscholtz, 1823 catching in ponds [PDF]

open access: yesبوم‌شناسی آبزیان, 2020
Various fishing tools have been used for catching Astacus leptodactylus in the world. In this research, a trap was specially designed for crayfish fishing with some changes in the shape and dimensions of the Hokkaido trap, and its efficiency was compared
Mohammad Javad Vesaghi   +4 more
doaj  

The fishery for California market squid (Loligo opalescens) (Cephalopoda: Myopsida), from 1981 through 2003 [PDF]

open access: yes, 2006
The California market squid (Loligo opalescens) has been harvested since the 1860s and it has become the largest fishery in California in terms of tonnage and dollars since 1993.
Hamner, William M.   +3 more
core  

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