Coastal winds and larval fish abundance indicate a recruitment mechanism for southeast Australian estuarine fisheries

2021 ◽  
Author(s):  
Hayden T. Schilling ◽  
Charles Hinchliffe ◽  
Jonathan P. Gillson ◽  
Anthony G. Miskiewicz ◽  
Iain M. Suthers
Keyword(s):  
Larval Fish ◽  
Fish Abundance ◽  
Coastal Winds

Influence of the aquatic vegetation landscape on larval fish abundance

2015 ◽  
Vol 41 (3) ◽  
pp. 873-880 ◽  
Author(s):  
Philippe Massicotte ◽  
Andrea Bertolo ◽  
Philippe Brodeur ◽  
Christiane Hudon ◽  
Marc Mingelbier ◽  
...  
Keyword(s):  
Aquatic Vegetation ◽  
Larval Fish ◽  
Fish Abundance ◽  
Vegetation Landscape

scholarly journals Coastal winds drive a recruitment mechanism for estuarine fisheries

2020 ◽  
Author(s):  
Hayden T. Schilling ◽  
Charles Hinchliffe ◽  
Jonathan P. Gillson ◽  
Anthony Miskiewicz ◽  
Iain M. Suthers
Keyword(s):  
Larval Fish ◽  
Future Research ◽  
Larval Abundance ◽  
Spawning Period ◽  
Onshore Wind ◽  
Larval Recruitment ◽  
Australian Region ◽  
Coastal Winds ◽  
Key Driver ◽  
Catch Rates

AbstractCoastal winds transport larval fish onshore or offshore which may contribute to estuarine recruitment, yet our understanding of the mechanism underlying this relationship is limited. Here, we show that larval abundance of coastally spawned species increased with weak to moderate upwelling favourable winds 14 days prior to sampling, reflecting increased nutrient and plankton availability for larval fish. A strong decline in larval abundance was observed following strong upwelling favourable winds while abundance increased with onshore (downwelling favourable) winds, in relation to offshore and onshore wind-driven transport. Subsequently, we show that effects of wind during the spawning period can be detected in lagged estuarine commercial fisheries catch rates of coastally spawned species (lagged by 2 – 8 years depending on species’ growth rates), representing the same mechanism proposed for larval fish. Upwelling favourable winds in the southeast Australian region have increased since 1850 while onshore winds have decreased, which may reduce larval recruitment to estuaries. Coastal winds are likely an important factor for estuarine recruitment in the east Australian region and future research on the estuarine recruitment of fish should incorporate coastal winds. As global winds are changing, it is important to investigate if this mechanism is applicable to other regions around the world where coastal winds are a key driver of upwelling.

scholarly journals Diel variation of larval fish abundance in the Amazon and Rio Negro

2001 ◽  
Vol 61 (3) ◽  
pp. 357-362 ◽  
Author(s):  
C. A. R. M. ARAUJO-LIMA ◽  
V. V. da SILVA ◽  
P. PETRY ◽  
E. C. OLIVEIRA ◽  
S. M. L. MOURA
Keyword(s):  
Larval Fish ◽  
Fish Abundance ◽  
Large Rivers ◽  
Larval Abundance ◽  
Diel Variation ◽  
Larval Drift ◽  
Larval Distribution ◽  
Rio Negro ◽  
One Year

Many streams and large rivers present higher ichthyoplankton densities at night. However, in some rivers this does not occur and larvae are equally abundant during the day. Larval drift diel variation is an important information for planning sampling programs for evaluating larval distribution and production. The aim of this study was to test whether the abundance of larval fish was different at either period. We tested it by comparing day and night densities of characiform, clupeiform and siluriform larvae during five years in the Amazon and one year in Rio Negro. We found that larvae of three species of characiform and larvae of siluriform were equally abundant during day and night in the Amazon. Conversely, the catch of Pellona spp. larvae was significantly higher during the day. In Rio Negro, however, larval abundance was higher during the night. These results imply that day samplings estimate adequately the abundance of these characiform and siluriform larvae in the Amazon, but not Pellona larvae. Evaluations of larved densities of Rio Negro will have to consider night sampling.

Comparison of acoustic and Miller high-speed sampler estimates of larval fish abundance in Oneida Lake, New York

2002 ◽  
Vol 57 (2) ◽  
pp. 145-154 ◽  
Author(s):  
Lars G. Rudstam ◽  
Anthony J. VanDeValk ◽  
Mark D. Scheuerell
Keyword(s):  
New York ◽  
High Speed ◽  
Larval Fish ◽  
Fish Abundance ◽  
Oneida Lake

Patterns of larval fish abundance in a bottomland hardwood wetland

Wetlands ◽  
1996 ◽  
Vol 16 (3) ◽  
pp. 288-295 ◽  
Author(s):  
K. Jack Killgore ◽  
John A. Baker
Keyword(s):  
Larval Fish ◽  
Fish Abundance ◽  
Bottomland Hardwood

scholarly journals Plankton biomass and larval fish abundance prior to and during the El Niño period of 1997–1998 along the central Pacific coast of México

2004 ◽  
Vol 63 (3) ◽  
pp. 99-123 ◽  
Author(s):  
C. Franco-Gordo ◽  
E. Godínez-Domínguez ◽  
A.E. Filonov ◽  
I.E. Tereshchenko ◽  
J. Freire
Keyword(s):  
El Niño ◽  
Pacific Coast ◽  
El Nino ◽  
Larval Fish ◽  
Fish Abundance ◽  
Central Pacific ◽  
Plankton Biomass

Seasonal Larval Fish Abundance in Waters off Diablo Canyon, California

1978 ◽  
Vol 107 (2) ◽  
pp. 225-233 ◽  
Author(s):  
J. W. Icanberry ◽  
J. W. Warrick ◽  
D. W. Rice
Keyword(s):  
Larval Fish ◽  
Fish Abundance

Relationships among vertically structured in situ measures of turbulence, larval fish abundance and feeding success and copepods on Western Bank, Scotian Shelf

2002 ◽  
Vol 11 (3) ◽  
pp. 156-174 ◽  
Author(s):  
ChristianS. Reiss ◽  
Ayal Anis ◽  
Christopher T. Taggart ◽  
JohnF. Dower ◽  
Barry Ruddick
Keyword(s):  
Larval Fish ◽  
Fish Abundance ◽  
Scotian Shelf ◽  
Feeding Success
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