Page 136 - 《水产学报》2026年第2期

2 期 梁耀威，等：站位设计对北部湾产卵场海域渔业资源密度评估的影响 50 卷

N
21°30′
2021春季
spring 2021
2018春季
spring 2018
2014春季
21°
spring 2014
2020秋季
autumn 2020
2018秋季
autumn 2018
2014秋季
20°30′ autumn 2014
实验区
experimental area
核心区
core area
N
¯ 0 20 40
20° km
108° 108°30′ 109° 109°30′ 110°E
图 1 调查站位分布
黑色实线表示调查边界。
Fig. 1 Survey station distribution
black solid lines indicate survey boundaries.

N N N
21°30' 21°30' 21°30' A
D3
A
21° 21° B D2 21° B
D2 D3
20°30' 20°30' C 20°30' C
D2 D3

20° 20° 20°
108° 108°30' 109° 109°30' 110°E 108° 108°30' 109° 109°30' 110°E 108° 108°30' 109° 109°30' 110°E
(a) (b) (c)
N N N
21°30' 21°30' 21°30'
A B C D
21° A 21° A D5 21°
D4
B D5 E F G H
20°30' 20°30' 20°30'
B D4 C D4 C D5 I J K L
20° 20° 20°
108° 108°30' 109° 109°30' 110°E 108° 108°30' 109° 109°30' 110°E 108° 108°30' 109° 109°30' 110°E
(d) (e) (f)
图 2 站位布设示意图
(a) 简单随机抽样 (D1)；(b) 以水深为依据的分层随机抽样 (D2)；(c) 以功能区为依据的分层随机抽样 (D3)；(d) 以地理边界为依据的分层随
机抽样 (D4)；(e) 以水深+地理边界为依据的分层随机抽样 (D5)；(f) 以 30′×30′空间分辨率为依据的分层随机抽样 (D6)。灰色圆点表示潜在
调查站位；字母 A~L 为不同层；黑色框线表示层与层的界线；红色线条表示调查边界；蓝色线条表示等深线，靠近陆地为 20 m 等深线，
远离陆地为 40 m 等深线。
Fig. 2 Schematic diagram of station design
(a) simple random sampling (D1); (b) stratified random sampling based on water depth (D2); (c) stratified random sampling based on functional
areas (D3); (d) stratified random sampling based on geographical boundaries (D4); (e) stratified random sampling based on water depth and geo-
graphical boundaries (D5); (f) stratified random sampling based on a 30′×30′ spatial resolution (D6). Gray dots. potential survey stations; A-L.
different levels; black lines. level boundaries; red line. survey boundaries; blue lines. depth contours, 20 m depth contour closer to land, 40 m depth con-
tour farther away.

中国水产学会主办 sponsored by China Society of Fisheries https://www.china-fishery.cn
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