Results 11 to 20 of about 323,906 (186)

Upstream migration, reproduction and fishery of sea lamprey (Petromyzon marinus Linnaeus, 1758) in the River Ulla (NW Spain)

Frontiers in Marine Science, 2015
After a juvenile haematophagous stage developed mainly at sea, the sea lamprey Petromyzon marinus Linnaeus, 1758 stop feeding and return to the river to spawn.
Sergio Silva, Sandra Barca, María José Servia   +2 more
doaj   +1 more source

The Fishery Value Chain Analysis in Taiwan

Fishes, 2022
Although the GDP of the fishery sector accounts for less than 0.3% of Taiwan’s GDP, there are many secondary and tertiary industries related to fisheries that add great value to the country’s economy.
Tsung-Yu Yang, Hsing-Chun Lin, Wen-Hong Liu   +2 more
doaj   +1 more source

Mussel Production and Water Framework Directive Targets in the Limfjord, Denmark: an Integrated Assessment for Use in System-Based Management

Ecology and Society, 2011
Growth of human activities often conflict with nature conservation requirements and integrated assessments are necessary to build reliable scenarios for management.
Grete E. Dinesen, Karen Timmermann, Eva Roth, Stiig Markager, Lars Ravn-Jonsen, Morten Hjorth, Marianne Holmer, Josianne G. Støttrup   +7 more
doaj   +1 more source

Study of phytoplankton community in coastal waters of Hormozgan province, Qeshm and Leangeh Islands [PDF]

بوم‌شناسی آبزیان, 2015
The study of spatial and temporal variability of distribution of phytoplankton communities in Northern part of the Persian Gulf (Qeshm andLengeh Islands) was studied.
Gholamali Akbarzadeh, Ali Salarpouri, Siamak Behzadi, Mohammad Darvishi   +3 more
doaj  

The stabilizing role of fish population structure under the influence of fishery and random environment variations [PDF]

Компьютерные исследования и моделирование, 2017
We study the influence of fishery on a structured fish population under random changes of habitat conditions. The population parameters correspond to dominant pelagic fish species of Far-Eastern seas of the northwestern part of the Pacific Ocean (pollack,
Aleksandr Ivanovich Abakumov, Yuri Grigorievich Izrailsky   +1 more
doaj   +1 more source

Size composition of aggregations and recommended commercial size for common whelk Buccinum undatum (Neogastropoda) in the Barents Sea at the coast of West Murman

Известия ТИНРО, 2018
Size composition of common whelk Buccinum undatum in its aggregations on sandy and stony grounds at the depth of 2–15 m is analyzed on the data of experimental fishing by scuba divers and traps in the Kislaya Guba and Ura Guba Bays in different seasons ...
D. V. Zakharov, A. M. Sennikov
doaj   +1 more source

Age of mass maturing and commercial measure of the Gizhiga-Kamchatka herring in conditions of the active fishery renewal

Известия ТИНРО, 2016
Data on age of mass maturing and biomass culmination for pacific herring from the Gizhiga-Kamchatka population in conditions of active fishery are presented.
Andrey A. Smirnov, Victor V. Ovchinnikov, Julia A. Elatintseva   +2 more
doaj   +1 more source

Growth parameters and age estimates of the mouthless crab, Cardisoma crassum Smith, 1870 (Brachyura: Gecarcinidae) from the Montijo Gulf, Pacific coast of Panama

Nauplius
The asymptotic carapace width (L ∞ ) and growth coefficient (k) parameters of the mouthless crab, Cardisoma crassum, were estimated, and the von Bertalanffy growth function was fitted to predict mean crab carapace width at different ages.
Roberto C. Lombardo
doaj   +1 more source

The international regulation of herring, blue whiting and mackerel fishery [PDF]

Vestnik MGTU, 2017
The purpose of the fisheries management is to provide the conditions for long-term, high and sustainable fishing. Most of the fish stocks in the North-East Atlantic's are transboundary and straddling, and some international agreements in the field of ...
Krysov A. I., Pronyuk A. A., Rybakov M. O. , Kalashnikov Yu. N.   +3 more
doaj   +1 more source

LIMITS AND OPERATIONAL EVALUATION OF THE SPAWNERS ESCAPEMENT TO THE SPAWNING GROUNDS AS TOOLS FOR PROSPECTIVE AND SHORT-TERM MANAGEMENT OF THE PACIFIC SALMON STOCKS IN THE RIVERS OF THE FAR-EASTERN FISHERIES BASIN

Известия ТИНРО, 2019
The major aspects of density regulation of the pacific salmons spawning are analyzed. Uncertainty of the ecological parameters considered traditionally as indicators of the salmons reproduction efficiency is discussed.
E. A. Shevlyakov, M. G. Feldman, V. I. Ostrovsky, V. V. Volobuev, A. M. Kaev, E. V. Golub, E. I. Barabanshchikov, I. S. Golovanov   +7 more
doaj   +1 more source