Feeding habits of Dall's porpoises (Phocoenoides dalli) in the subarctic North Pacific and the Bering Sea basin and the impact of predation on mesopelagic micronekton

Ohizumi, Hiroshi; Kuramochi, Toshiaki; Kubodera, Tsunemi; Yoshioka, Motoi; Miyazaki, Nobuyuki

doi:10.1016/s0967-0637(03)00033-5

Cited by 40 publications

(35 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is an important prey of northern fur seals (Callorhinus ursinus) in the central North Pacific (Mori et al, 2001), and a minor prey of short-beaked common dolphins (Delphinus delphis; body length range, 155-190 cm) in the western North Pacific (Ohizumi et al, 1998) and of Baird's beaked whales (Berardius bairdii; body length range, 8.85-10.48 m) off central Japan in summer (Ohizumi et al, 2003a). Dall's porpoises (Phocoenoides dalli), however, appear not to feed on O. bartramii in the North Pacific during summer (Ohizumi et al, 2003b).…”

Section: Predatorsmentioning

confidence: 99%

The red flying squid (Ommastrephes bartramii): A review of recent research and the fishery in Japan

Bower

Ichii

2005

Fisheries Research

View full text Add to dashboard Cite

Section: Predatorsmentioning

confidence: 99%

The red flying squid (Ommastrephes bartramii): A review of recent research and the fishery in Japan

Bower

Ichii

2005

Fisheries Research

View full text Add to dashboard Cite

“…Moreover, several other predators, such as marine mammals (Hassani et al, 1997;Pauly et al, 1998;Springer et al, 1999;Dolar et al, 2003;Ohizumi et al, 2003), seabirds (Springer et al, 1999) and cephalopods (Marabello et al, 1996;Watanabe et al, 2004), rely on these food resources.…”

Section: Introductionmentioning

confidence: 99%

Relationships between otolith size and fish size in some mesopelagic and bathypelagic species from the Mediterranean Sea (Strait of Messina, Italy)

Battaglia¹,

Malara²,

Romeo³

et al. 2010

Sci. Mar.

103

137

View full text Add to dashboard Cite

SUMMARY: The length-weight relationships and the regressions between otolith size (length and width) and fish length of some mesopelagic and bathypelagic fishes living in the central Mediterranean Sea were provided. Images and morphological description of otoliths (sagittae) from 16 species belonging to the families of Gonostomatidae (1), Microstomatidae (2), Myctophidae (8), Phosichthyidae (2), Sternoptychidae (2) and Stomiidae (1) were given. The length-weight relationship showed an isometric growth in 13 species. No differences between right and left otolith sizes were detected by t-test, so a single linear regression was plotted against standard length (SL) for otolith length (OL) and otolith width (OW). Data fitted well to the regression model for both OL and OW to SL, for each species (R 2 >0.8). These relationships offer a helpful tool in feeding studies and also provide support to palaeontologists in their research on fish fossils.Keywords: mesopelagic fishes, bathypelagic fishes, otolith, fish-otolith sizes, length-weight relationship, Mediterranean Sea. RESUMEN: Relaciones entre talla del otolito y talla del pez en algunos peces mesopelágicos y batipelá-gicos del Mediterráneo (estrecho de Messina, Italia). -En este trabajo se presentan las relaciones talla-peso y las regresiones entre la talla del otolito (longitud y anchura) y la talla del pez (SL) para algunos peces meso y batipelágicos que viven en el Mediterráneo central. Se incluyen imágenes y descripciones morfológicas de los otolitos (sagittae) de 16 especies de las familias Gonostomatidae (1), Microstomatidae (2), Myctophidae (8), Phosichthyidae (2), Sternoptychidae (2) y Stomiidae (1). La relación talla-peso muestra un crecimiento isométrico en 13 especies. No se encontraron diferencias relevantes (t-test) entre la talla del otolito derecho e izquierdo, por lo que se representó una sola regresión lineal entre la longitud estándar y los siguientes parámetros: longitud de otolite (OL) y la anchura (OW). Los datos se ajustaron bien al modelo de regresión lineal para OL y OW, para todas las especies (R 2 >0.8). Las relaciones obtenidas puede ser utilizadas como instrumento en estudios de alimentación y para sustentar estudios de paleontología sobre peces fósiles.Palabras clave: peces mesopelágicos, peces batipelágicos, otolito, pez-otolito, relación talla-peso, Mediterráneo. 2010, 605-612, Barcelona (Spain) Scientia Marina74(3) September

show abstract

“…In turn, T. crenularis constitutes an important prey item for many predators in the North Pacific, including jumbo squid (Field et al 2007;Zeidberg and Robison 2007), salmon, Sockeye salmon, albacore, Pacific hake, and sablefish (Rogachev et al 2000;Hart 1973, Davies et al 1988Buckley et al 1999;Nomura and Davis 2005), and Dall's porpoises (Ohizumi et al 2003).…”

mentioning

confidence: 99%

Larval stage duration, age and growth of blue lanternfish Tarletonbeania crenularis (Jordan and Gilbert, 1880) derived from otolith microstructure

2010

View full text Add to dashboard Cite

Tarletonbeania crenularis specimens were collected off Oregon in 2006 and 2009 and aged by enumeration of growth increments in otoliths (sagittae). Three microstructural zones were evident in the otoliths of juvenile and adult fish: central, middle, and external. The number of increments in the central zone are thought to be deposited during the larval phase which is restricted to the uppermost 350 m water layer. The middle zone constituted of barely visible increments, most likely represented a non-migratory behavior of transforming larvae and early juvenile stages. Well defined growth increments were found in the external zone which was presumably formed during extensive vertical migrations of juvenile and adult fish. If the enumerated increments were deposited daily, as previously validated for other myctophid species, the examined individuals indicated a shorter life span than has been formerly reported on the basis of length frequency analysis. The otolith microstructure interpretation was supported by otolith size to fish length proportions and somatic growth of larvae and postlarval fish. Otolith length to standard length relation was described by linear regression models for larvae and postlarval migratory stages with an abrupt disruption between these two groups. The number of growth increments in otoliths plotted against standard length showed a curvilinear growth for larvae and for the postlarval fish. The lack of information on the size at age of transforming larvae and non-migratory early juveniles did not allow us to estimate a complete growth model for T. crenularis. However, a pronounced decrease in growth between larval and postlarval migratory phases was distinguished. The uncoupling of otolith and somatic growth was interpreted as a merged effect of downward migration of larvae to the mesopelagic transformation depth, prolonged stay of transforming larvae and early juveniles at this depth without performing diel vertical migrations, and shrinkage during metamorphosis. Back-calculated hatch dates suggests a prolonged spawning season of this species without any distinct peak.

show abstract

Feeding habits of Dall's porpoises (Phocoenoides dalli) in the subarctic North Pacific and the Bering Sea basin and the impact of predation on mesopelagic micronekton

Cited by 40 publications

References 26 publications

The red flying squid (Ommastrephes bartramii): A review of recent research and the fishery in Japan

The red flying squid (Ommastrephes bartramii): A review of recent research and the fishery in Japan

Relationships between otolith size and fish size in some mesopelagic and bathypelagic species from the Mediterranean Sea (Strait of Messina, Italy)

Larval stage duration, age and growth of blue lanternfish Tarletonbeania crenularis (Jordan and Gilbert, 1880) derived from otolith microstructure

Contact Info

Product

Resources

About