In order to study the growth, death, transport and distribution of early life history of winter-spring cohort of neon flying squid Ommastrephes bartramii in the Northwest Pacific Ocean, parameterized early biological processes, such as growth and death. Used the physical model (FVCOM-Global) to simulate and generate three-dimensional physical field of the North Pacific Ocean (10°−60°N, 120°E−110°W), and adopted the Lagrangian particle tracking method to couple the physical model and the biological model (individual-based model), and constructed an individual-based ecological model of early life history of winter-spring cohort of O. bartramii in the Northwest Pacific Ocean, and used this model to numerically simulate the transport distribution of winter-spring cohort from 1997 to 2010. The simulation results showed that within a certain temperature range, the closer to the optimum water temperature, the faster the growth rate of winter-spring cohort. When the age was 38 days, the mantle length could reach 11.76 millimeters, and then gradually changed from exponential growth to linear growth. The simulative recruitment had interannual fluctuation from 1997 to 2010. Considering the different number of winter-spring cohort parents, the years with the most and the least actual recruitment were 1999 and 2009, respectively. In the simulation stage, the winter-spring cohort was mainly located in the spawning ground, transported to the west in the south of 25°N, and gradually transported to the north and northeast in the north of 25°N, especially affected by the strong current in the later period of transport. In the vertical direction, the larvae within 100 meters water depth accounted for nearly half. This study can lay a foundation for further study of ecological dynamics of winter-spring cohort of O. bartramii in the Northwest Pacific Ocean.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |