Matches in SemOpenAlex for { <https://semopenalex.org/work/W1996403929> ?p ?o ?g. }
Showing items 1 to 95 of
95
with 100 items per page.
- W1996403929 endingPage "127" @default.
- W1996403929 startingPage "111" @default.
- W1996403929 abstract "Correct catch data are necessary for age-structured assessment models. Those data may be biased among other reasons due to fishing practices such as discarding or selection by gear and subsequent escapee mortality. In a number of fisheries juveniles make a large fraction of catches while their survival is low. We applied length-specific selection and escapee mortality functions to estimate “underwater discarding” and the actual total removals from the herring (Clupea harengus L.) stock in the northern Baltic Sea. Contemporarily an array of fleet selection scenarios was investigated to estimate the impact of underwater discarding on perceived stock dynamics. The analysis showed that in ages 0 and 1 year herring are discarded underwater in larger numbers than landed. Unaccounted mortality involves a marked seasonal pattern because the growth rate of immature herring is high. During the first quarter of the year the first fully recruited age group is 1 year instead of 2 years as indicated by catch samples. The effect of fishing induced mortality decreases as a function of age and size so that the impact on estimated recruitment and fishing mortality at age 1 year is considerable, but irrelevant at age 2 years and older. The actual fishing mortality at age 1 year is estimated to be more than twice higher than estimates of F based on the unadjusted data. The practical effect of underwater discarding on evaluation of stock status, the stock–recruitment function, and reference points is minor. However, changes in codend mesh size, induced by management actions or fishing strategies, should be recognized and their effects considered in stock assessment, in short term forecasts, and in management advice." @default.
- W1996403929 created "2016-06-24" @default.
- W1996403929 creator A5034540947 @default.
- W1996403929 creator A5058407867 @default.
- W1996403929 creator A5063053512 @default.
- W1996403929 date "2004-04-01" @default.
- W1996403929 modified "2023-10-14" @default.
- W1996403929 title "Unaccounted mortality in northern Baltic Sea herring fishery—magnitude and effects on estimates of stock dynamics" @default.
- W1996403929 cites W142584611 @default.
- W1996403929 cites W1972691070 @default.
- W1996403929 cites W1976603141 @default.
- W1996403929 cites W2021612033 @default.
- W1996403929 cites W2030437201 @default.
- W1996403929 cites W2048252186 @default.
- W1996403929 cites W2069173820 @default.
- W1996403929 cites W2079104580 @default.
- W1996403929 cites W2096771107 @default.
- W1996403929 cites W2148901999 @default.
- W1996403929 cites W2171009914 @default.
- W1996403929 cites W2171846505 @default.
- W1996403929 cites W4210260625 @default.
- W1996403929 doi "https://doi.org/10.1016/j.fishres.2003.09.047" @default.
- W1996403929 hasPublicationYear "2004" @default.
- W1996403929 type Work @default.
- W1996403929 sameAs 1996403929 @default.
- W1996403929 citedByCount "16" @default.
- W1996403929 countsByYear W19964039292012 @default.
- W1996403929 countsByYear W19964039292013 @default.
- W1996403929 countsByYear W19964039292014 @default.
- W1996403929 countsByYear W19964039292016 @default.
- W1996403929 countsByYear W19964039292021 @default.
- W1996403929 countsByYear W19964039292022 @default.
- W1996403929 crossrefType "journal-article" @default.
- W1996403929 hasAuthorship W1996403929A5034540947 @default.
- W1996403929 hasAuthorship W1996403929A5058407867 @default.
- W1996403929 hasAuthorship W1996403929A5063053512 @default.
- W1996403929 hasConcept C111368507 @default.
- W1996403929 hasConcept C127313418 @default.
- W1996403929 hasConcept C144024400 @default.
- W1996403929 hasConcept C149923435 @default.
- W1996403929 hasConcept C166957645 @default.
- W1996403929 hasConcept C179755657 @default.
- W1996403929 hasConcept C201490090 @default.
- W1996403929 hasConcept C204036174 @default.
- W1996403929 hasConcept C205649164 @default.
- W1996403929 hasConcept C2777049034 @default.
- W1996403929 hasConcept C2777997422 @default.
- W1996403929 hasConcept C2779290800 @default.
- W1996403929 hasConcept C2909208804 @default.
- W1996403929 hasConcept C2986433049 @default.
- W1996403929 hasConcept C39432304 @default.
- W1996403929 hasConcept C505870484 @default.
- W1996403929 hasConcept C514101110 @default.
- W1996403929 hasConcept C58479451 @default.
- W1996403929 hasConcept C86803240 @default.
- W1996403929 hasConceptScore W1996403929C111368507 @default.
- W1996403929 hasConceptScore W1996403929C127313418 @default.
- W1996403929 hasConceptScore W1996403929C144024400 @default.
- W1996403929 hasConceptScore W1996403929C149923435 @default.
- W1996403929 hasConceptScore W1996403929C166957645 @default.
- W1996403929 hasConceptScore W1996403929C179755657 @default.
- W1996403929 hasConceptScore W1996403929C201490090 @default.
- W1996403929 hasConceptScore W1996403929C204036174 @default.
- W1996403929 hasConceptScore W1996403929C205649164 @default.
- W1996403929 hasConceptScore W1996403929C2777049034 @default.
- W1996403929 hasConceptScore W1996403929C2777997422 @default.
- W1996403929 hasConceptScore W1996403929C2779290800 @default.
- W1996403929 hasConceptScore W1996403929C2909208804 @default.
- W1996403929 hasConceptScore W1996403929C2986433049 @default.
- W1996403929 hasConceptScore W1996403929C39432304 @default.
- W1996403929 hasConceptScore W1996403929C505870484 @default.
- W1996403929 hasConceptScore W1996403929C514101110 @default.
- W1996403929 hasConceptScore W1996403929C58479451 @default.
- W1996403929 hasConceptScore W1996403929C86803240 @default.
- W1996403929 hasIssue "2" @default.
- W1996403929 hasLocation W19964039291 @default.
- W1996403929 hasOpenAccess W1996403929 @default.
- W1996403929 hasPrimaryLocation W19964039291 @default.
- W1996403929 hasRelatedWork W1521851741 @default.
- W1996403929 hasRelatedWork W1842374574 @default.
- W1996403929 hasRelatedWork W1996403929 @default.
- W1996403929 hasRelatedWork W2095356777 @default.
- W1996403929 hasRelatedWork W2152801900 @default.
- W1996403929 hasRelatedWork W2621355961 @default.
- W1996403929 hasRelatedWork W2951544291 @default.
- W1996403929 hasRelatedWork W4313310291 @default.
- W1996403929 hasRelatedWork W4313703099 @default.
- W1996403929 hasRelatedWork W4385497477 @default.
- W1996403929 hasVolume "67" @default.
- W1996403929 isParatext "false" @default.
- W1996403929 isRetracted "false" @default.
- W1996403929 magId "1996403929" @default.
- W1996403929 workType "article" @default.