Population connectivity of Ezo abalone on the northern Pacific coast of Japan in relation to the establishment of harvest refugia

Miyake, Yoichi; Kimura, Shingo; Kawamura, Tomohiko; Kitagawa, Takashi; Takami, Hideki

doi:10.3354/meps09348

Cited by 14 publications

(3 citation statements)

References 37 publications

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“…Similar studies using the particle‐tracking method have elucidated the larval transport processes of other marine organisms (e.g., sardine, jack mackerel and abalone; Huggett et al ., ; Kasai et al ., ; Itoh et al ., ; Miyake et al ., ). For example, combined in situ and numerical analysis revealed that weak‐to‐moderate wind speed is favorable for the retention of the European anchovy ( Engraulis encrasicolus ) on the continental shelf in the Bay of Biscay (Allain et al ., ).…”

Section: Discussionmentioning

confidence: 97%

Simulation of the impact of climate change on the egg and larval transport of Japanese anchovy (Engraulis japonicus) off Kyushu Island, the western coast of Japan

Takeshige

Miyake

Nakata

et al. 2015

Fisheries Oceanography

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In order to investigate the impact of climate change on egg and larval transport of Japanese anchovy (Engraulis japonicus) off Kyushu Island western Japan, we conducted particle-tracking simulations on transport success/failure to fishing grounds from 1960 to 2007. The modeled transport success since the mid1990s increased and decreased in the offshore and coastal zones, respectively, compared with the 1960s and 1970s. The estimated northward shift of the spawning ground and weakened Tsushima Warm Current contributed to increase in modeled transport success to the offshore zone. Conversely, the weakening trend of the modeled onshore current in the GotoNada Sea combined with the northward shift of the spawning ground resulted in unsuccessful larval transport. These results suggest that fluctuations in juvenile and subadult anchovy catches in this area may be attributable to changes in the physical environment. The present study showed that changes in transport success induced by oceanographic fluctuations related to climate change, have the potential to affect anchovy recruitment off the western coast of Japan.

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Section: Discussionmentioning

confidence: 97%

Simulation of the impact of climate change on the egg and larval transport of Japanese anchovy (Engraulis japonicus) off Kyushu Island, the western coast of Japan

Takeshige

Miyake

Nakata

et al. 2015

Fisheries Oceanography

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“…Both currents are thought to have an important role in the spread of H. squamata abalone in Indonesian waters. Miyake et al (2011) reported that the distribution of abalone planktonic larvae depends on the abalone period, which is divided into two types, namely the flow type and the settling type near the spawning area. Thus, the morphological characters that separate the two populations are thought to be characters that experience adaptation to the environment.…”

Section: Discussionmentioning

confidence: 99%

MORPHOMETRIC CHARACTER AND MORPHOLOGY OF ABALONE Haliotis squamata REEVE 1864 IN COASTAL SOUTHERN JAVA AND BALI

Bachry¹,

Solihin

Gustiano

et al. 2019

J. Ilmu dan Teknologi Kelautan Tropis

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The standard of measurement of abalone is very important because it can help to identify accurately abalone shellfish based on shell morphology. This research was aimed to examine the truss morphometric and morphologycal characters of Haliotis squamata intraspecies in the southern coastal Java and Bali. The research was conducted from December 2014 to August 2016. Abalone was collected based on the purposive sampling method, it was then identified. The shellfish of abalone was measured and analyzed by using principal component analysis (PCA), canonical discriminant analysis and cluster analysis. The results showed that PCA was able to separate Haliotis squamata populations from Java and Bali using combination of PCIII and PCIV based on the factor coefficient values. The key characters that separated Haliotis squamata from the population of Java and Bali were the combination of characters BF (0.535) for PCIII and characters CH (0.522) for PCIV. Canonical discriminant analysis showed that Bali was the highest sharing component value (100%) of intra population and also the lowest sharing component of inter population (0%). The highest percentage of similarity was 99.91% that indicated the population of Binuangeun and Pangandaran, while the lowest was 99.31% for the population of Banyuwangi and Bali. The morphological characteristics of Haliotis squamata species in several locations showed specific characters such as color patterns, textures and shapes.

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“…Core aspects of the population connectivity models (covering the population connectivity circle in Fig. 2) are based on the physical processes of advection and diffusion; these models are often extended to include the mortality and behavior of target organisms (Cowen 2000;Mitarai et al 2009;Miyake et al 2011;Werner et al 2007). These models use physical parameters (velocity, temperature, and salinity) from hydrodynamic models, and estimate the distributions of organisms through Eulerian (an advection-diffusion-reaction equation for concentration) or Lagrangian (particle tracking) approaches.…”

Section: Population Connectivity Modelsmentioning

confidence: 99%

Modeling the coastal ecosystem complex: present situation and challenges

et al. 2018

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To enhance numerical modeling of the coastal ecosystem complex (CEC), we reviewed the CEC and related concepts along with the current coastal ecosystem model framework in this study. We identified two model implementation paths from the initial objectives to numerical models: specific model building, and the use of existing model frameworks. As the CEC is still at the conceptual stage, both paths are possible. Four important ecological features of CEC modeling (population connectivity, habitat heterogeneity, ontogeny of organisms, and trophic interactions) were also identified. Models for population connectivity, species distributions, life histories, and food webs were categorized using these features. We found that some previously established concepts (between-habitat interactions, coastal ecosystem mosaic, and seascape nursery) overlap with the CEC concept. Several existing integrated model frameworks were reviewed, focusing on their potential to simulate CEC processes. Building specific models for the CEC at the current conceptual stage will be challenging, and modification of existing models will be needed if they are to be used for CEC modeling. Habitat function, ontogenetic development in early life stages, and recruitment variability are important factors when modifying existing models for the development of CEC models. Although model complexity should become high to reproduce observed ecoclogical processes, an intermediate level of model ccomplexity is feasible to decrease parameter uncertainty in models for fisheries management.

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Population connectivity of Ezo abalone on the northern Pacific coast of Japan in relation to the establishment of harvest refugia

Cited by 14 publications

References 37 publications

Simulation of the impact of climate change on the egg and larval transport of Japanese anchovy (Engraulis japonicus) off Kyushu Island, the western coast of Japan

Simulation of the impact of climate change on the egg and larval transport of Japanese anchovy (Engraulis japonicus) off Kyushu Island, the western coast of Japan

MORPHOMETRIC CHARACTER AND MORPHOLOGY OF ABALONE Haliotis squamata REEVE 1864 IN COASTAL SOUTHERN JAVA AND BALI

Modeling the coastal ecosystem complex: present situation and challenges

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