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7 results for “Pacific sardine”
Data for Contrasting life-history responses to climate variability in eastern and western North Pacific sardine populations
<p><span>Massive populations of sardines inhabit both the western and eastern boundaries of the world's subtropical ocean basins, supporting both commercial fisheries and populations of marine predators. Sardine populations in western and eastern boundary current systems have responded oppositely to decadal scale anomalies in ocean temperature, but the mechanism for differing variability has remained unclear. Here, based on otolith microstructure and high-resolution stable isotope analyses, we show that habitat temperature, early life growth rates, energy expenditure, metabolically optimal temperature and, most importantly, the relationship between growth rate and temperature were remarkably different between the two subpopulations in the western and eastern North Pacific. Varying metabolic response to environmental changes partly explain the contrasting growth responses. Consistent differences in the life-history traits are observed between subpopulations in the western and eastern boundary current systems around South Africa. These growth and survival characteristics can facilitate the contrasting responses of sardine populations to climate change.</span></p>
Data for Contrasting life-history responses to climate variability in eastern and western North Pacific sardine populations
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FIGURE 4 in Sardinella alcyone n. sp., a new sardine (Teleostei: Clupeiformes: Clupeidae) from the northwestern Pacific Ocean
FIGURE 4. Relationships of (A) pectoral-fin length (as % of standard length; SL) to SL, (B) pelvic-fin length (as % of SL) to SL, (C) upper-jaw length (as % of SL) to SL, (D) lower-jaw length (as % of SL) to SL, and (E) pre-anal-fin length (as % of SL) to SL in Sardinella alcyone n. sp. (closed circles) and S. pacifica (open triangles).
FIGURE 1 in Sardinella alcyone n. sp., a new sardine (Teleostei: Clupeiformes: Clupeidae) from the northwestern Pacific Ocean
FIGURE 1. Holotype of Sardinella alcyone n. sp. KAUM–I. 108333, 96.1 mm SL, Okinawa Island, Ryukyu Islands, Japan.
FIGURE 2. Stained lateral body scale removed from Sardinella alcyone n in Sardinella alcyone n. sp., a new sardine (Teleostei: Clupeiformes: Clupeidae) from the northwestern Pacific Ocean
FIGURE 2. Stained lateral body scale removed from Sardinella alcyone n. sp. (KAUM–I. 108335, paratype, 72.2 mm SL, Okinawa Island, Ryukyu Islands, Japan).
Footage of a school of Pacific sardines evading striped marlin attacks
<p>This repository contains 14 videos of attacks by striped marlin on a school of Pacific sardines, filmed in November 2021 using unmanned aerial vehicles (DJI, Phantom 4 Pro V2.0) flying at 20 m altitude, 10-30 km offshore Baja California, Mexico.</p>
FIGURE 3 in Sardinella alcyone n. sp., a new sardine (Teleostei: Clupeiformes: Clupeidae) from the northwestern Pacific Ocean
FIGURE 3. Relationships of total gill-raker numbers (TGR) on (A) first gill arch (1GA), (B) second gill arch (2GA), (C) third gill arch (3GA), and (D) fourth gill arch (4GA) relative to standard length in Sardinella alcyone n. sp. (closed circles) and S. pacifica (open triangles).
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