A5061525150- Marine and fisheries research
- Marine Bivalve and Aquaculture Studies
- Fish Ecology and Management Studies
- Coral and Marine Ecosystems Studies
- Insect-Plant Interactions and Control
- Insect Pest Control Strategies
- Oceanographic and Atmospheric Processes
- Animal Behavior and Reproduction
- Reservoir Engineering and Simulation Methods
- Fault Detection and Control Systems
- Animal Ecology and Behavior Studies
- Fish Biology and Ecology Studies
- Advanced Data Processing Techniques
- Simulation Techniques and Applications
- Insect Resistance and Genetics
- Insect and Pesticide Research
- Remote Sensing and Land Use
- Identification and Quantification in Food
- Physiological and biochemical adaptations
- Food Industry and Aquatic Biology
- Satellite Image Processing and Photogrammetry
- Aquaculture Nutrition and Growth
- Distributed and Parallel Computing Systems
- Software Reliability and Analysis Research
- Aquatic Ecosystems and Biodiversity
Japan Fisheries Research and Education Agency
2016-2025
Shimizu (Japan)
2010-2015
University of British Columbia
2009
Pacific University
2009
Stanford University
2009
The University of Tokyo
2001-2007
Marine fish stocks are an important part of the world food system and particularly for many poorest people world. Most existing analyses suggest overfishing is increasing, there widespread concern that decreasing throughout most We assembled trends in abundance harvest rate scientifically assessed, constituting half reported global marine catch. For these stocks, on average, increasing at proposed target levels. Compared with regions intensively managed, less-developed fisheries management...
Abstract Small pelagic fishes are used for human consumption, fishmeal and fish oil. They constitute 25% of global catch have been considerable conservation concern because their intermediate position in aquatic food webs, often being a dominant dietary component marine predators. This paper provides an overview trends abundance fishing pressure on small stocks from single‐species scientific assessments that 60% catch. While most individual exhibited wide variability (typical pelagics...
We present the first quantitative review of stock status relative to biomass (B) and exploitation rate (U) that achieved maximum sustainable yield (MSY) (BMSY UMSY, respectively) for 37 Japanese stocks contributing 61% total marine capture production in Japan. BMSY UMSY were estimated by assuming three types stock-recruitment (S-R) relationships an age-structured population model or applying a surplus model. The shows approximately half overfishing (U/UMSY > 1), overfished (B/BMSY...
Abstract There is considerable international concern and scientific debate about the current state future of tuna stocks worldwide capacity Regional Fisheries Management Organisations to manage associated fisheries effectively. In some cases, this has extended predictions imminent collapse with minimal chances recovery, even under a commercial catch moratorium. As viable alternative full fishery closure, Commission for Conservation Southern Bluefin Tuna ( CCSBT ) adopted scientifically...
This paper presents a Bayesian methodology to estimate fishing mortality rates and transoceanic migration of highly migratory pelagic fishes that integrates multiple sources tagging data auxiliary information from prior knowledge. Exploitation movement for Atlantic bluefin tuna ( Thunnus thynnus ) are estimated by fitting spatially structured model three types obtained pop-up satellite, archival, conventional tags the period 1990–2006 in western North Atlantic. A sequential statistical...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 633:157-168 (2020) - DOI: https://doi.org/10.3354/meps13169 Disentangling effects of climate and density-dependent factors on spatiotemporal dynamics Japanese sardine spawning Sho Furuichi1,2,*, Tohya Yasuda1,2, Hiroyuki Kurota1, Mari Yoda1, Kei Suzuki1, Motomitsu Takahashi1, Masa-aki Fukuwaka1,3 1Seikai...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 593:141-154 (2018) - DOI: https://doi.org/10.3354/meps12491 Long-term change in distribution of Japanese sardine Sea Japan during population fluctuations Soyoka Muko1,*, Seiji Ohshimo1, Hiroyuki Kurota1, Tohya Yasuda1, Masa-Aki Fukuwaka1,2 1Seikai National Fisheries Research Institute, and Education Agency,...
Abstract We review the status of groundfish stocks using published scientific assessments for 349 individual constituting 90% global catch. Overall, average stock abundance is increasing and currently above level that would produce maximum sustainable yield (MSY). Fishing pressure cod‐like fishes (Gadiformes) flatfishes (Pleuronectiformes) was, several decades, on well levels associated with MSY, but now at or below expected to MSY. In contrast, fishing rockfishes (Scorpaeniformes) decreased...
Abstract Fisheries management is conducted to achieve sustainable use of fishery resources, mainly through regulation fishing activities. For almost a decade, the Commission for Conservation Southern Bluefin Tuna (CCSBT) struggled reach agreement on total allowable catch (TAC) southern bluefin tuna (SBT) because stock assessment uncertainties. To address this, in 2002 CCSBT commenced development procedure (MP), pre‐agreed set rules determine how TAC will be adjusted as new monitoring data...
Abstract The bruchid beetle, Bruchidius dorsalis Fahraeus (Coleoptera: Bruchidae), has a multivoltine life cycle and shows geographical variation of overwintering stages in Japan. Our previous study found that B. enters larval diapause the final instar under short photoperiods. In cooler areas, we observed most individuals overwinter stage diapause, whereas beetles at different developmental (non‐diapausing young instars, diapausing adults) were warmer areas. this study, investigated...
We investigated the seasonal population dynamics of bruchid beetle, Bruchidius dorsalis Fahraeus, in relation to phenology its host plant Gleditsia japonica Miq. (Fabaceae: Caesalpinoidea) two geographically distinct areas Japan. compared life cycles clarify influences variation temperature and availability on insect cycles. Results from a 4-yr study indicated that Sagamihara (warmer climate): (1) B. has trivoltine cycle, (2) it cannot reproduce during period more than 1 mo until new seeds...
Abstract 1. Most temperate insects undergo diapause at a specific developmental stage to overcome severe winters. The bruchine beetle Bruchidius dorsalis in warmer region Japan, however, has diverse over‐wintering stages – non‐diapausing larvae, diapausing and adults, whereas cooler region, it over‐winters only as the final instar larva or adult diapause. 2. geographical pattern of 12 populations was investigated over wide range along mainland Japan. It revealed that distinct exists relation...
Abstract The bruchid beetle Bruchidius dorsalis Fahraeus (Coleoptera: Bruchidae) has been known to undergo larval diapause during the final instar under short photoperiods ( Kurota & Shimada, 2001 ). This species a multivoltine life cycle and overwintering stages show geographical variation across Japan 2002 In cooler areas, occurs instar, whereas in warmer climates can occur several developmental stages: non‐diapausing young instars, diapausing adults. this study, we investigated adult...
Abstract The wild bruchid beetle, Bruchidius dorsalis Fahraeus (Coleoptera: Bruchidae), has a multivoltine life cycle and overwinters in several developmental stages the middle part of Japan. We investigated incidence diapause under different conditions photoperiod (from L8:D16 to L16:D8) temperature (at 20 °C 24 °C). Our experiments revealed following results: (1) B. entered at final (late fourth) instar larva short photoperiods, (2) larval was dependent on (critical photoperiods were 12.5...
Ecosystem models are thought to offer advantages over single-species in terms of management policy analysis. This hypothesis has proven difficult test because underlying system complexities, coupled with short time series and minimal contrast environmental conditions or policies. paper presents a Bayesian statistical catch-at-age model compare ecosystem hypotheses about the recreational fishery based on predator–prey using relatively simple data-rich large lake, Kootenay Lake, British...
Abstract Trace element analysis of otoliths from core to edge was used reveal differences in habitats larvae and early juveniles Japanese jack mackerel ( Trachurus japonicus ) caught the East China Sea (ECS), Pacific Ocean, Japan. Multi‐element signatures (Sr:Ca, Mg:Ca, Na:Ca, K:Ca, Ba:Ca) were analyzed with multivariate statistics determine whether these provide insight into regional population structure. The median values elements: Ca ratios otolith region differed significantly among...