Matches in SemOpenAlex for { <https://semopenalex.org/work/W2139821925> ?p ?o ?g. }
Showing items 1 to 83 of
83
with 100 items per page.
- W2139821925 endingPage "58" @default.
- W2139821925 startingPage "51" @default.
- W2139821925 abstract "Because abalone feed mainly on macroalgae, the disappearance of macroalgal beds would have negative effects on abalone. We investigated the relationship between abalone resources and quantitative or qualitative changes of algal beds in coastal waters around the Ojika Islands, Nagasaki Prefecture, southwestern Japan, from 1988 to 2011. During this period, the catch record of 2 abalone species—Haliotis discus discus and Haliotis gigantea—was examined, and the composition and abundance of macroalgae around the Ojika Islands was observed. The annual landing of abalone has decreased steadily from 91 mt in 1987 to 0.4 mt in 2011. The proportion of H. discus discus to the annual abalone landing has also changed; it was stable (30%–60%) between 1988 and 2000, less than 20% from 2004 to 2005, and increased from 2006, reaching more than 90% in 2010. The macroalgal beds have also changed during this period. The perennial Laminariales beds, consisting of Eisenia bicyclis and Ecklonia spp., had disappeared by 2003, shifting mostly to Sargassaceae (Sargassum macrocarpum) beds. After the Sargassaceae beds had disappeared by 2009, there have been no Laminariales or Sargassaceae beds except for spring algal beds (unusual perennial Sargassaceae beds that form dense stands from March to July and lose most thalli after maturing in August) in some fishing ports. The results suggest a differential detrimental effect of the disappearance of macroalgal beds on abalone, with different species having different effects. After 2009, when no perennial Laminariales or Sargassaceae beds were present, there were no mature individuals of H. gigantea, with no recruitment at the juvenile stage of the latter at major fishing grounds. Reformation of the macroalgal beds is indispensable to sustain or restore the H. gigantea population. On the other hand, because most H. discus discus are able to mature, they can sustain a viable population under this condition." @default.
- W2139821925 created "2016-06-24" @default.
- W2139821925 creator A5014815797 @default.
- W2139821925 creator A5017210722 @default.
- W2139821925 creator A5020336599 @default.
- W2139821925 creator A5050141903 @default.
- W2139821925 creator A5057689148 @default.
- W2139821925 creator A5069957184 @default.
- W2139821925 creator A5070407932 @default.
- W2139821925 creator A5074110536 @default.
- W2139821925 creator A5075447956 @default.
- W2139821925 date "2013-04-01" @default.
- W2139821925 modified "2023-10-06" @default.
- W2139821925 title "Decrease of Abalone Resources with Disappearance of Macroalgal Beds Around the Ojika Islands, Nagasaki, Southwestern Japan" @default.
- W2139821925 cites W2039447327 @default.
- W2139821925 cites W2052753759 @default.
- W2139821925 cites W2058971865 @default.
- W2139821925 cites W2161513302 @default.
- W2139821925 cites W2324331509 @default.
- W2139821925 doi "https://doi.org/10.2983/035.032.0110" @default.
- W2139821925 hasPublicationYear "2013" @default.
- W2139821925 type Work @default.
- W2139821925 sameAs 2139821925 @default.
- W2139821925 citedByCount "15" @default.
- W2139821925 countsByYear W21398219252014 @default.
- W2139821925 countsByYear W21398219252015 @default.
- W2139821925 countsByYear W21398219252016 @default.
- W2139821925 countsByYear W21398219252018 @default.
- W2139821925 countsByYear W21398219252020 @default.
- W2139821925 countsByYear W21398219252021 @default.
- W2139821925 countsByYear W21398219252022 @default.
- W2139821925 countsByYear W21398219252023 @default.
- W2139821925 crossrefType "journal-article" @default.
- W2139821925 hasAuthorship W2139821925A5014815797 @default.
- W2139821925 hasAuthorship W2139821925A5017210722 @default.
- W2139821925 hasAuthorship W2139821925A5020336599 @default.
- W2139821925 hasAuthorship W2139821925A5050141903 @default.
- W2139821925 hasAuthorship W2139821925A5057689148 @default.
- W2139821925 hasAuthorship W2139821925A5069957184 @default.
- W2139821925 hasAuthorship W2139821925A5070407932 @default.
- W2139821925 hasAuthorship W2139821925A5074110536 @default.
- W2139821925 hasAuthorship W2139821925A5075447956 @default.
- W2139821925 hasConcept C124743340 @default.
- W2139821925 hasConcept C18903297 @default.
- W2139821925 hasConcept C24461792 @default.
- W2139821925 hasConcept C2775933076 @default.
- W2139821925 hasConcept C2778760044 @default.
- W2139821925 hasConcept C2780982499 @default.
- W2139821925 hasConcept C505870484 @default.
- W2139821925 hasConcept C559758991 @default.
- W2139821925 hasConcept C59822182 @default.
- W2139821925 hasConcept C86803240 @default.
- W2139821925 hasConceptScore W2139821925C124743340 @default.
- W2139821925 hasConceptScore W2139821925C18903297 @default.
- W2139821925 hasConceptScore W2139821925C24461792 @default.
- W2139821925 hasConceptScore W2139821925C2775933076 @default.
- W2139821925 hasConceptScore W2139821925C2778760044 @default.
- W2139821925 hasConceptScore W2139821925C2780982499 @default.
- W2139821925 hasConceptScore W2139821925C505870484 @default.
- W2139821925 hasConceptScore W2139821925C559758991 @default.
- W2139821925 hasConceptScore W2139821925C59822182 @default.
- W2139821925 hasConceptScore W2139821925C86803240 @default.
- W2139821925 hasIssue "1" @default.
- W2139821925 hasLocation W21398219251 @default.
- W2139821925 hasOpenAccess W2139821925 @default.
- W2139821925 hasPrimaryLocation W21398219251 @default.
- W2139821925 hasRelatedWork W2006062970 @default.
- W2139821925 hasRelatedWork W2040058327 @default.
- W2139821925 hasRelatedWork W2109046220 @default.
- W2139821925 hasRelatedWork W2139821925 @default.
- W2139821925 hasRelatedWork W2314783652 @default.
- W2139821925 hasRelatedWork W2324331509 @default.
- W2139821925 hasRelatedWork W2343007015 @default.
- W2139821925 hasRelatedWork W2567294345 @default.
- W2139821925 hasRelatedWork W2584275712 @default.
- W2139821925 hasRelatedWork W3095887116 @default.
- W2139821925 hasVolume "32" @default.
- W2139821925 isParatext "false" @default.
- W2139821925 isRetracted "false" @default.
- W2139821925 magId "2139821925" @default.
- W2139821925 workType "article" @default.