1
Marine and
Fishery Sciences
MAFIS
*
Improvements in length structure, reproductive indices, and spawning
biomass following strengthened sheries management: evidence from the
common sardine (Strangomera bentincki) o central-southern Chile
1
1
Eveling Monsalve Tequén Luis A. Cubillos
Sebastián I. Vásquez
ABSTRACT.
Stran-
gomera bentincki
Key words:
Mejoras en la estructura de talla, índices reproductivos y biomasa de desove tras el fortaleci-
miento de la gestión pesquera: evidencia de la sardina común (Strangomera bentincki) frente
a la costa centro-sur de Chile
RESUMEN.
Strangomera bentincki
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
Strangomera bentincki
<
>>
Palabras clave:
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
Study area and data sources
Data analysis
post hoc
G
W
= �G�
WG
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
CF =WE/LWE
L
Modeling changes in GSI and CF
×
Spawning biomass, recruitment, and shing
mortality
post
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
hoc
+ t
∈+
>
<
t
t+
t
>
Length-based indicator
==
=
==
th
th
>
=
==
+
Demographic traits
>
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
>
>
+
>
>
=× ≈
>
=× ≈
==+
= ≥
>
+M/k
+M/k
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
post hoc
Modeling changes in GSI and CF
×
j1
=j1=
<
β==
β=
=
post hoc
< < <
< < <
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
<
<
<
β=
β=
×+
+
+
M4 755,106.30 0 M3 + season × length interaction
×+
+
+
M4 -598,501.80 0 M3 + season × length interaction
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements 11
<
<
Spawning stock biomass and shing mortality
~
~
<
post hoc
<
=
>
+
=
=<
>=
=<
Length-based indicator
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
Trachurus murphyi
Engraulis ringens
±
±
<>
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
>
<
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
×
+
+
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
Declarations of use of AI
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
Conict of interest
Ethical approval
Author contributions
Strangomera bentincki
Engraulis ringens
Engraulis ringens
Sebastes melan-
ops
Sebastes melanops
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
Strangomera bentincki
Sardi-
nops sagaxEngraulis ringens
É
Stran-
gomera bentincki Engraulis ringens
Strangomera bentincki
Engraulis ringens
Stran-
gomera bentincki
Strangomera
bentincki
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
Stran-
gomera bentincki
=
Clupea harengus
Engraulis encra-
sicolus
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
Gadus morhua
Marine and Fishery Sciences 39 (4): xxx-xxx (2026)
Detailed implementation of generalized linear
mixed models
>
===
==
=
A=<==
==
==
×
μ=α+αp+fp+g+h
+pτ
ααp
fp
gh
bpτ
=
p=Σβπ+
βs-
∈
ββs
==
=
=
=
1 1
l1
=
Monsalve Tequén et al.: Small pelagic fish demographic traits and fisheries management improvements
f
+f
τ
j1
+
+×+
+
+=
+×
>
±≥
