A5037413890- Fish Ecology and Management Studies
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Isotope Analysis in Ecology
- Food Industry and Aquatic Biology
- Fish Biology and Ecology Studies
- Marine animal studies overview
- Marine and coastal plant biology
- Ichthyology and Marine Biology
- Aquaculture Nutrition and Growth
- Hydrology and Sediment Transport Processes
- Nuclear physics research studies
- Marine Biology and Ecology Research
- Ecology and biodiversity studies
- Methane Hydrates and Related Phenomena
- Arctic and Antarctic ice dynamics
- International Science and Diplomacy
- Reproductive biology and impacts on aquatic species
- Physics of Superconductivity and Magnetism
- Drug Transport and Resistance Mechanisms
- Freshwater macroinvertebrate diversity and ecology
- Plant-based Medicinal Research
- Coastal and Marine Management
Japan Fisheries Research and Education Agency
2015-2024
Hokkaido University
2009-2023
Hirosaki University
2015
University of the Ryukyus
2010
Understanding the interconnectivity of organisms among different habitats is a key requirement for generating effective management plans in coastal ecosystems, particularly when determining component habitat structures marine protected areas. To elucidate patterns use by fishes coral, seagrass, and mangrove habitats, between natural transplanted mangroves, visual censuses were conducted semiannually at two sites Philippines during September March 2010-2012. In total, 265 species 15,930...
To better understand the intrinsic and extrinsic factors that contribute to high mortality of juvenile chum salmon Oncorhynchus keta during primary ocean migration, this study developed approaches using otolith carbon oxygen isotopes reconstruct their metabolic histories experienced temperatures. Given in aragonite calcium carbonate is composed metabolically derived released from food respiration dissolved inorganic (DIC) ambient water, fish blood physiologically regulate pH an optimum...
Predator–prey interactions must be considered when aiming to enhance populations by releasing artificially reared individuals into natural environments. Released create an abundance of prey for predators, and a basic hypothesis predator–prey suggests that predators select large due the high caloric content. An alternative is small are vulnerable predation their poor predator avoidance. This study tested these hypotheses using stocked chum (Oncorhynchus keta) masu masou) salmon fry...
AB Aquatic Biology Contact the journal Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 24:163-174 (2016) - DOI: https://doi.org/10.3354/ab00646 Diel habitat-use patterns of commercially important fishes in a marine protected area Philippines Kentaro Honda1,4,*, Wilfredo H. Uy2, Darwin I. Baslot2, Allyn Duvin S. Pantallano2, Yohei Nakamura3, Masahiro Nakaoka1 1Akkeshi Marine Station, Field Science Center for Northern...
Abstract The spatial habitat utilization of juvenile southern bluefin tuna in Western Australia was investigated using automated acoustic receivers with transmitters implanted tagged fish during three austral summers (2004/2005, N = 79 fish, 2005/2006, 81, 2006/2007, 84). Seventy were deployed at cross‐shelf lines and coastal topographic features (lumps) between December May. We observed markedly different patterns the seasons: (i) aggregation lumps 2004/2005 (ii) wide distribution over...
Acoustic telemetry and microchemical analysis of otolith strontium-calcium ratios were used to evaluate how exotic brown trout Salmo trutta have responded Japanese riverine environments south-western Hokkaido by observing their migratory patterns. The existence anadromous S. was also verified. Most caught in rivers for freshwater residents (95·6%), whereas those the sea mainly smolts (91·3%), which had just migrated from during spring. Anadromous (n = 6) captured sea, confirming mature pre-...
SummaryThe effects of different photoperiod treatments (12, 16, 20, or 24 h) and their duration (1, 2, 3, 4 weeks) on the percentage flowering plants number inflorescences were investigated in Summer everbearing (EB) strawberry (Fragaria _ ananassa Duch.) cultivars with various EB strengths a field northern Japan. For 'Tochihitomi', strong cultivar, emerged all control grown under natural ( 14.5 h), was not affected by any treatment. In intermediate strength (i.e., 'Summer-drop',...
Increases in prey population size can affect the physiology and ecology of upper-trophic level organisms. This phenomenon is known as a bottom-up effect. For example, increased abundance resources trigger physiological (internal) changes predators, such improvements nutritional status. However, these aspects effects have not been considered. In this study, we tested hypothesis that white-spotted charr Salvelinus leucomaenis, salmonid fish, increases body stores omega-3 fatty acids,...
Abstract Behavioural tracking of endangered adult S akhalin taimen ( P arahucho perryi ) by acoustic telemetry was conducted in the B ekanbeushi R iver system that flows through eastern H okkaido 2008–2010. A total 39 tracked . showed extensive use river system, both upstream and downstream, regardless month or year. No stayed ocean for more than 1 day. Some fish (20%) dwelled habitat consistently from spring to autumn, while 40% individuals wide utilisation entire downstream systems....
Abstract The feeding ecology of scarinine parrotfishes on tropical coral reefs has received considerable attention in the past few decades; nonetheless, relatively studies have been conducted high‐latitude reefs. Among Indo‐Pacific Scarus species, ovifrons is unique, being largely restricted to warm temperate waters Japan. Nonetheless, there very little information available this species. In study, authors used acoustic telemetry detect diel vertical movement patterns S. , video survey its...
Abstract Juvenile southern bluefin tuna ( Thunnus maccoyii , SBT) were monitored in nearshore waters off southwest Australia using acoustic tagging and monitoring over five austral summers (2002/2003–2006/2007) to determine patterns age‐based distribution of SBT. A total 20–70 receivers deployed early December along one three cross‐shelf transects at inshore topographic features (lumps) where SBT are known occur; a 59–84 juvenile (41–90 cm fork length) tagged released each year. After...
The study identified seasonal habitat use by endangered adult Sakhalin taimen Hucho perryi and the environmental characteristics of their (water depth, amount riparian forest sinuosity). Fifteen H. with acoustic tags were tracked towing an receiver a canoe in Bekanbeushi River system eastern Hokkaido Island, Japan, during each month from late April to November 2008. Individuals mainly used midstream (shallower than downstream) habitats all seasons. These locations generally characterized...
Abstract The establishment of marine protected areas ( MPA s) can often lead to environmental differences between s and fishing zones. To determine the effects on dispersal dissimilarity an zone, we examined abundance recruitment patterns two anemonefishes Amphiprion frenatus A. perideraion ) that inhabit sea anemones in different management zones (i.e., zones) by performing a field survey genetic parentage analysis. We found lower levels per anemone compared for both species n = 1,525...