scholarly journals Spatio-temporal dynamics of a fish spawning aggregation and its fishery in the Gulf of California

2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Brad Erisman ◽  
Octavio Aburto-Oropeza ◽  
Charlotte Gonzalez-Abraham ◽  
Ismael Mascareñas-Osorio ◽  
Marcia Moreno-Báez ◽  
...  
Keyword(s):  
Gulf Of California ◽  
Temporal Dynamics ◽  
Spawning Aggregation ◽  
Fish Spawning ◽  
Spatio Temporal ◽  
Fish Spawning Aggregation

scholarly journals A sound worth saving: acoustic characteristics of a massive fish spawning aggregation

2017 ◽  
Vol 13 (12) ◽  
pp. 20170656 ◽  
Author(s):  
Brad E. Erisman ◽  
Timothy J. Rowell
Keyword(s):  
Marine Fish ◽  
Sound Production ◽  
Reproductive Behaviour ◽  
Spawning Aggregation ◽  
Marine Animals ◽  
Acoustic Characteristics ◽  
Fish Spawning ◽  
Spatio Temporal ◽  
Fish Spawning Aggregation ◽  
Regional Conservation

Group choruses of marine animals can produce extraordinarily loud sounds that markedly elevate levels of the ambient soundscape. We investigated sound production in the Gulf corvina ( Cynoscion othonopterus ), a soniferous marine fish with a unique reproductive behaviour threatened by overfishing, to compare with sounds produced by other marine animals. We coupled echosounder and hydrophone surveys to estimate the magnitude of the aggregation and sounds produced during spawning. We characterized individual calls and documented changes in the soundscape generated by the presence of as many as 1.5 million corvina within a spawning aggregation spanning distances up to 27 km. We show that calls by male corvina represent the loudest sounds recorded in a marine fish, and the spatio-temporal magnitude of their collective choruses are among the loudest animal sounds recorded in aquatic environments. While this wildlife spectacle is at great risk of disappearing due to overfishing, regional conservation efforts are focused on other endangered marine animals.

Surface drifter movement indicates onshore egg transport from a reef fish spawning aggregation

2015 ◽  
Vol 36 (4) ◽  
pp. 353-366 ◽  
Author(s):  
Adriana Méndez-Jiménez ◽  
William D. Heyman ◽  
Steven F. DiMarco
Keyword(s):  
Reef Fish ◽  
Spawning Aggregation ◽  
Surface Drifter ◽  
Fish Spawning ◽  
Fish Spawning Aggregation ◽  
Egg Transport

Acoustic competition of Serranids at a fish spawning aggregation

2017 ◽  
Vol 141 (5) ◽  
pp. 3944-3944
Author(s):  
Katherine Cameron ◽  
Brice Semmens ◽  
Christy V. Pattengill-Semmens ◽  
Steve Gittings ◽  
Croy McCoy ◽  
...  
Keyword(s):  
Spawning Aggregation ◽  
Fish Spawning ◽  
Fish Spawning Aggregation

Should we protect extirpated fish spawning aggregation sites?

2020 ◽  
Vol 241 ◽  
pp. 108395 ◽  
Author(s):  
Iliana Chollett ◽  
Mark Priest ◽  
Stuart Fulton ◽  
William D Heyman
Keyword(s):  
Spawning Aggregation ◽  
Fish Spawning ◽  
Fish Spawning Aggregation

Community structure of deep-water decapod crustaceans below the oxygen minimum zone in the south-east Gulf of California and analysis of environmental drivers

2016 ◽  
Vol 67 (12) ◽  
pp. 1862 ◽  
Author(s):  
Vanesa Papiol ◽  
Michel E. Hendrickx
Keyword(s):  
Gulf Of California ◽  
Temporal Dynamics ◽  
Environmental Drivers ◽  
Time Lags ◽  
Decapod Crustaceans ◽  
The South ◽  
Global Pattern ◽  
Spatio Temporal ◽  
Ecological Importance ◽  
Oxygen Minimum

Despite the ecological importance of decapod crustaceans in energy transfer in marine ecosystems, little is known on their distribution below oxygen minimum zones (OMZs). To understand the spatio-temporal dynamics of benthic and benthopelagic decapod crustaceans living below the OMZ cores, four seasonal oceanographic and sledge surveys were performed in the south-east Gulf of California at depths between 730 and 2250m. Multivariate analyses indicate the existence of three major depth-related assemblages at: 800–1000, 1000–1200 and >1200m (mean trawl depth). Benthic detritivores dominated between 800 and 1000m and benthopelagic (i.e. swimming) predators dominated deeper, where dissolved oxygen (DO) values were higher. Assemblages comprised the same species throughout the year, but aggregations of smaller organisms were observed in June. DO significantly controlled the distribution of decapod crustaceans, likely through physiological exclusion of swimming species from hypoxic waters. Besides, the combined effects of DO and temperature contributed to defining the depth ranges occupied by each species. Food derived from surface-water production modulated changes in community parameters with different time lags in the different depth-related assemblages. These findings demonstrate the vulnerability of bathyal communities to the global pattern of OMZ expansion.

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