Results 11 to 20 of about 3,638 (297)
From spawner habitat selection to stock-recruitment: Implications for assessment. [PDF]
Ecol Evol, 2022 AbstractThe relationship between the spawning stock size and subsequent number of recruits is a central concept in fisheries ecology. The influence of habitat selection of spawning individuals on the stock‐recruitment relationship is poorly known.
Skoglund S +4 more
europepmc +8 more sources
Landscape ecotoxicology of coho salmon spawner mortality in urban streams.
PLoS ONE, 2011 In the Pacific Northwest of the United States, adult coho salmon (Oncorhynchus kisutch) returning from the ocean to spawn in urban basins of the Puget Sound region have been prematurely dying at high rates (up to 90% of the total runs) for more than a ...
Blake E Feist +4 more
doaj +5 more sources
Comparison of known spawner abundance from fence counts to visual counts for simplified spawner estimation methods [PDF]
Canadian Journal of Fisheries and Aquatic Sciences, 2023 Many salmon species are monitored by visual counts of spawners in streams; however, there are few data sets where abundance is known and compared to estimates derived from visual counts. We used spawner fences to obtain known kokanee ( Oncorhynchus nerka) spawner abundance (14 stream-years) on streams that are monitored with annual visual surveys (7 ...
Paul J. Askey +3 more
openaire +2 more sources
High variability in spawnerrecruit data hampers learning
Canadian Journal of Fisheries and Aquatic Sciences, 2001 Variability is a formidable opponent of experimental management aimed at detecting spawnerrecruit (SR) effects in a short time frame. I fitted Ricker SR models to 214 different SR data sets and found that high residual error variability was common. For each of these data sets, in an a priori power analysis, I estimated the power of experiments that ...
Richard A Hinrichsen
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Implications of protracted recruitment for perception of the spawnerrecruit relationship
Canadian Journal of Fisheries and Aquatic Sciences, 2001 In European lobster, Homarus gammarus, wide growth variation means that annual recruitment to a fishery (individuals reaching legal size in the same year) consists of at least six year-classes (individuals hatching in the same year). In this paper, a simple simulation analysis is used to explore the effects of uncertainty about the specifics of this ...
M RJ Sheehy
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Influence of salmon spawner densities on stream productivity in Southeast Alaska
Canadian Journal of Fisheries and Aquatic Sciences, 1999 We conducted this study to determine the relationship between salmon spawner abundance and stream biofilm and benthic macroinvertebrate abundance in Southeast Alaska. Experiments took place in outdoor artificial and natural streams. Six pink salmon (Oncorhynchus gorbuscha) carcass treatments (0.00, 1.45, 2.90, 4.35, 5.80, and 7.25 kg wet mass) placed ...
Mark S. Wipfli +3 more
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Trace element accumulation in anadromous sea lamprey spawners [PDF]
Ecology of Freshwater Fish, 2013 AbstractThe sea lamprey, Petromyzon marinus, is an anadromous cyclostome that occurs in the main Western Europe river basins draining to the Atlantic Ocean and considered a gastronomic delicacy in Portugal, Spain and France. The contamination profile of this species is fairly unknown as far as trace metals are concerned, with only a few studies ...
Pedro, Sílvia +4 more
openaire +3 more sources
, 2023 AbstractIn this chapter, we will be creating a mod that allows players to spawn bales of shapes and types specified by the player. You will work to tie GUI elements into your LUA programs to create new objects the player can interact with on their farm. Let’s jump into it!
Zander Brumbaugh, Manuel Leithner
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Comparison of ovarian cycles of Hungarian riverine fish species representing different spawning strategies [PDF]
, 2008 Investigations on the ovarian cycle of fish species that inhabit Hungarian rivers are necessitated by both environmental and economic reasons. The objective of our research was to explore new fundamental knowledge concerning the ovarian cycle of the ...
Lefler, Kinga Katalin +6 more
core +2 more sources
Известия ТИНРО, 2018 Cultivation, biological and production parameters of domesticated spawners of amur sturgeon in the age from 8 to 24 years are described for the warm-water cage farm conditions.
E. I. Rachek, D. Y. Amvrosov
doaj +1 more source