<i>Caranx latus</i> (Carangidae) Chooses Dock Pilings to Attack Silverside Schools: A Tactic to Interfere With Stereotyped Escape Behavior of Prey?

Cermak, Michael J.

doi:10.2307/1543419

Cited by 7 publications

(4 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These benthic prey represent a substantial part of the diet of juvenile jack species in general (Blaber and Cyrus, 1983;Smith and Parrish, 2002;Figueiredo and Pessanha, 2015;Medeiros et al, 2017) and are commonly eaten by other estuarine fish (Blaber, 1986;Vasconcelos Filho et al, 2003;Lira et al, 2017). The juveniles of the two species were also found to largely prey on pelagic fish like engraulids and clupeids in the three estuaries studied, as already reported from visual census studies in these ecosystems (Cermak, 2002). This indicates that, at least in estuaries, C. latus and C. hippos juveniles forage both at mid-water and directly above the substrate, feeding on a mix of pelagic and benthic prey.…”

Section: Discussionsupporting

confidence: 82%

Trophic ecology of the juveniles of two jack species (Caranx latus and C. hippos) in contrasted tropical estuaries

Gonzalez

Darnaude

Duarte‐Neto

et al. 2021

Estuarine, Coastal and Shelf Science

View full text Add to dashboard Cite

Section: Discussionsupporting

confidence: 82%

Trophic ecology of the juveniles of two jack species (Caranx latus and C. hippos) in contrasted tropical estuaries

Gonzalez

Darnaude

Duarte‐Neto

et al. 2021

Estuarine, Coastal and Shelf Science

View full text Add to dashboard Cite

“…It should be noted that hyperiid amphipods have been found in plankton tows at a dock habitat in Yaquina Bay (B. D. Schwartzkopf and A. Harris, Oregon State University, unpublished data), so this prey item can be locally available; plankton tows were not conducted at eelgrass sites so the presence of hyperiid amphipods at this habitat cannot be stated. The dock sites were located in deeper water than the eelgrass sites, so it is possible that individuals at dock habitats feed throughout the water column due to the increased depth and vertical structure provided by the pilings, which can increase predation risk (Cermak ). If foraging throughout the water column at the dock habitat does increase vulnerability to predators, this strategy may not be as beneficial as foraging within eelgrass habitats, which are known to provide refuge from predators (Cowan et al.…”

Section: Discussionmentioning

confidence: 99%

A Feeding‐Ecology‐Based Approach to Evaluating Nursery Potential of Estuaries for Black Rockfish

Schwartzkopf

Heppell

2020

Mar Coast Fish

View full text Add to dashboard Cite

Previous work suggests that Oregon estuaries function as nursery habitat and may play an important role in settlement of Black Rockfish Sebastes melanops. No research, however, has been conducted on juvenile Black Rockfish feeding ecology in estuarine habitats, which is necessary to evaluate habitat use and quality. We examined stomach contents and carbon and nitrogen stable isotope ratios for juvenile Black Rockfish collected from May to September in 2016 and 2017 at both anthropogenic (dock) and natural (eelgrass Zostera marina) habitats in Yaquina Bay, a marine-dominated estuary on the central Oregon coast. We found consumption of 94 different prey items, the majority of which are estuary derived, and benthic prey were most frequently consumed. In general, it appears that fish are feeding in the habitat in which they are caught, with marine-fouling prey being consumed in greater abundances at the dock habitat, whereas algae-or eelgrass-associated species were consumed in greater abundances at the eelgrass habitat. The increase in both δ 15 N and δ 13 C values in muscle tissue seasonally and the positive correlation with upwelling in 2016 suggests that upwelled, oceanic waters were the primary source of nutrients to Yaquina Bay in 2016. The high variability in δ 15 N and general increase in δ 13 C seasonally in 2017 suggests that oceanic waters were still present but may not have been the dominant nutrient source. Yaquina Bay appears to be an important foraging ground for juvenile Black Rockfish during summer months, providing a diversity of prey items, with special importance of benthic and eelgrass-associated prey. Our results support the hypothesis that estuaries can function as a nursery habitat for Black Rockfish, although additional data is needed to provide an absolute designation. Changes in benthic communities or available habitat may have negative effects on foraging ability, and thus nursery function, and should be considered during management decisions.

show abstract

“…However, there are certainly exceptions to this rule (Marinelli & Coull 1987). Predators may use structure to interfere with the stereotyped escape behavior of prey, thus increasing the likelihood of prey capture (Cermak 2002). Structure may benefit ambush predators more than their prey by providing them with cover to attack from (James & Heck 1994, Flynn & Ritz 1999.…”

Section: Introductionmentioning

confidence: 99%

Space size relative to prey width (Sp/Py) influences macrofaunal colonization of artificial structures

Bartholomew¹,

Shine²

2008

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

We tested an index of habitat complexity, Sp/Py (inter-structural space size/prey body width), by deploying artificial structures on a coral reef near Dibba, United Arab Emirates. The structures were polyethylene tube bundles with tube diameters of 3, 12 and 24 mm and a mixed treatment composed of all 3 tube sizes. We counted and identified mobile macrofauna that colonized the interior of the tubes and divided them into 3 body width categories: small (< 3 mm), medium (3-12 mm) and large (>12 mm). Medium and large fauna were excluded from 3 mm tubes, and large fauna were excluded from 12 mm tubes. Small fauna were significantly more abundant in 24 mm tubes compared with 3 mm tubes, with intermediate abundance in 12 mm tubes. A second experiment determined that small fauna probably responded positively to tube interior volume, or responded to differences in hydrodynamic properties between the treatments. Medium fauna were more likely to be found in 12 mm tubes that matched their own body width than in 24 mm tubes. Species richness was significantly lower in the 3 mm tubes compared with the other treatments, in part because errant polychaetes, gastropods, caprellid amphipods and crabs were less likely to be found in the 3 mm tubes. These results indicate that habitats with very narrow inter-structural space sizes may be 'too complex' and may exclude certain fauna, resulting in decreased species richness. Also, some fauna may prefer habitats with intermediate space sizes that match their own body width.

show abstract

Caranx latus (Carangidae) Chooses Dock Pilings to Attack Silverside Schools: A Tactic to Interfere With Stereotyped Escape Behavior of Prey?

Cited by 7 publications

References 3 publications

Trophic ecology of the juveniles of two jack species (Caranx latus and C. hippos) in contrasted tropical estuaries

Trophic ecology of the juveniles of two jack species (Caranx latus and C. hippos) in contrasted tropical estuaries

A Feeding‐Ecology‐Based Approach to Evaluating Nursery Potential of Estuaries for Black Rockfish

Space size relative to prey width (Sp/Py) influences macrofaunal colonization of artificial structures

Contact Info

Product

Resources

About