Fisheries Science, Journal Year: 2024, Volume and Issue: 90(4), P. 607 - 619
Published: June 4, 2024
Language: Английский
Diversity, Journal Year: 2024, Volume and Issue: 16(9), P. 521 - 521
Published: Aug. 31, 2024
Nursery habitats play a significant role in completing fish life cycles, and they are now recognized as essential habitats. Monthly variations nursery ground distributions of Larimichthys polyactis were investigated the southern Yellow Sea 2019. Bayesian hierarchical models with integrated nested Laplace approximation utilized to model preferential L. larvae. The study analyzed spatial temporal larvae juveniles based on three environmental variables: sea surface temperature, salinity, depth. Additionally, this examined utilization by different stages ontogenetic shifts. A total 3240 individuals collected from April June, peak occurring May (0.05 ind./m3), distribution areas varied between months. prediction reveals ecological adaptability temperature variations. optimal for density ranges 12.5 °C 16.5 17.5 May, demonstrating broad tolerance survival. In addition, there patterns among developmental stages. spawn inshore nearshore waters, after hatching, pre-flexion stage tend remain aggregated near spawning beds. However, advanced development (post-flexion) move towards sandy ridge along coast start migrate offshore June. This provides valuable insights effective management fishery resources area can be identify marine specific habitat features that require conservation.
Language: Английский
Citations
4
Fishes, Journal Year: 2025, Volume and Issue: 10(3), P. 112 - 112
Published: March 4, 2025
Long-term selective fishing pressure often leads to miniaturization, smaller size, and early sexual maturity in many commercial fish species. To adapt, these species increase energy allocations toward maturation reproduction, which can reduce population productivity recruitment. However, how different pressures affect reproductive investment allocation between growth reproduction remains unclear. In this study, we designed three size-selective harvesting strategies—large, random, small harvests—to examine their effects on the of marine medaka (Oryzias melastigma). We analyzed changes length, weight, gonad weight across harvest times. Results showed that “large harvest” group allocated more leading miniaturization earlier maturation, while “small focused growth, resulting larger at same age. This study provides experimental evidence alters populations, offering valuable insights for sustainable exploitation fishery resources.
Language: Английский
Citations
0
Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 12
Published: March 28, 2025
Otolith Sr/Ca profiles are widely used to investigate early life migration and habitat use in both diadromous oceanodromous fishes. This study focuses on Larimichthys polyactis , an species of significant ecological commercial importance East Asian waters. investigates the influence environmental factors otolith ratios during its stages (ELS). In Experiment A, we analyzed laboratory-reared specimens—maintained under stable temperature (19–21°C) salinity (27–28 PSU) conditions—and wild-captured specimens. The results revealed a consistent decline throughout ELS groups, suggesting that may not be primary drivers development. B, core (incubation stage) edge (recently spawned zones otoliths from wild adult fish were compared. significantly higher zone than zone, indicating maternal influences main cause elevated core. Collectively, these findings suggest L. more affected by ontogenetic developmental stage such as temperature, salinity, or effects. challenges previous assumptions about dominance shaping chemistry highlights need for nuanced interpretations data, especially studies When utilizing microchemistry reconstruct history, it is essential minimize physiological effects through controlled culture experiments ensure accuracy reliability results.
Language: Английский
Citations
0
Ecosphere, Journal Year: 2024, Volume and Issue: 15(2)
Published: Feb. 1, 2024
Abstract Static and dynamic area‐based management tools hold substantial potential to balance socioeconomic benefits derived from fisheries costs bycatch mortality of at‐risk species. Palau longline have high species including the olive ridley marine turtle silky blue sharks. This study analyzed a two decades‐long time series observer electronic monitoring datasets distant‐water locally‐based pelagic fisheries. An interpretable or explainable machine learning‐based modeling approach was used derive spatially resolved species‐specific catch rate predictions. These models were conditioned on suite potentially informative environmental, bathymetric, ocean‐climate metric, vessel, system, set‐specific operational predictors. Overall, there would be limited ecological tradeoffs focusing fishing effort within primary hotspots for target bigeye yellowfin tunas. Mean field prediction surfaces also defined sharks, turtle, stingray, which did not overlap The predicted hotspots, however, stingray warmspots. Results identify opportunities temporally spatial control rates Management fishery predictors depth soak duration present additional A transition employing fleetwide vessel‐based output controls that effectively constrain alter strategy focus zones with lowest ratio commercial catch. Our findings support evidence‐informed evaluation strategies complementary measures meet objectives balancing threatened
Language: Английский
Citations
2
Fisheries Science, Journal Year: 2024, Volume and Issue: 90(4), P. 607 - 619
Published: June 4, 2024
Language: Английский
Citations
0