The Status, Ecology, and Conservation of Marine Birds of the North Pacific

Lampritrema nipponicum is recorded from three new hosts in the North Pacific: Brama rayi (Bloch), Oncorhynchus nerka (Walbaum), and Oncorhynchus gorbuscha (Walbaum). Only immature specimens were found in the last two (evidently accidental) hosts. Distomum miescheri Zschokke is transferred to Lampritrema, becoming Lampritrema miescheri (Zschokke) nov. comb. This species possibly is identical with L. nipponicum. Lampritrematidae is considered a valid family, distinct from Hemiuridae sensu lato.

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Resurrection and redescription of Squalus suckleyi (Girard, 1854) from the North Pacific, with comments on the Squalus acanthias subgroup (Squaliformes: Squalidae)

Zootaxa ◽

10.11646/zootaxa.2612.1.2 ◽

2010 ◽

Vol 2612 (1) ◽

pp. 22 ◽

Cited By ~ 65

Author(s):

DAVID A. EBERT ◽

WILLIAM T. WHITE ◽

KENNETH J. GOLDMAN ◽

LEONARD J. V. COMPAGNO ◽

TOBY S. DALY–ENGEL ◽

...

Keyword(s):

North Pacific ◽

Mitochondrial Gene ◽

Dna Barcode ◽

Molecular Data ◽

Squalus Acanthias ◽

Bootstrap Support ◽

Dorsal Fin ◽

The North ◽

The Status ◽

The North Pacific

A taxonomic re-evaluation of the status of the North Pacific Squalus suckleyi (Girard, 1854) combining the use of meristic, morphological and molecular data reveal this species to be clearly distinct from the widespread Squalus acanthias (Linneaus, 1758). Differences in the external morphology between S. acanthias and S. suckleyi are subtle and are likely to be masked by intraspecific variation within individuals. However, we found S. suckleyi to differ from S. acanthias based on the following morphological and meristic characteristics: a short, broadly-rounded to acute snout; first dorsal-fin midpoint more posterior to pectoral-fin insertion; pelvic-fin origin closer to second dorsal fin than first dorsal fin; total vertebral counts average 99 (97–106). Molecular analysis of approximately 650 bp of the CO1 mitochondrial gene (DNA barcode region) showed separation of S. suckleyi and S. acanthias into two distinct genetic clades with 98% bootstrap support. Within species genetic diversities were 0.109±0.036% and 0.176±0.041% for S. suckleyi and S. acanthias respectively; between species diversity was 5– 6 fold greater at 0.765+0.307%. Squalus suckleyi is thus resurrected and a neotype for this endemic North Pacific Squalus species is designated.

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The genus Anonyx (Crustacea, Amphipoda) in the North Pacific and Arctic oceans: Anonyx nugax group

Canadian Journal of Zoology ◽

10.1139/z82-228 ◽

1982 ◽

Vol 60 (7) ◽

pp. 1754-1775 ◽

Cited By ~ 3

Author(s):

D. H. Steele

Keyword(s):

New Species ◽

Arctic Ocean ◽

North Pacific ◽

The Other ◽

Pacific Region ◽

The North ◽

Two New Species ◽

The Status ◽

North Pacific Region ◽

The North Pacific

Thirteen species of the Anonyx nugax group (uropod 2 partially constricted) are listed for the North Pacific and adjacent Arctic ocean. Two new species, Anonyx beringi and Anonyx barrowensis are described; A. pacificus Gurjanova, A. anivae Gurjanova, A. comecrudus Barnard, and A. epistomicus Kudrjaschov are redescribed; and the status of the other species is reconsidered and commented upon. Only four of these species, nugax, sarsi, lilljeborgi, and debruyni, have circumpolar distributions, with the other nine confined to the North Pacific region or to it and adjacent seas.

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Revision of the Alitta virens species complex (Annelida: Nereididae) from the North Pacific Ocean

Zootaxa ◽

10.11646/zootaxa.4483.2.1 ◽

2018 ◽

Vol 4483 (2) ◽

pp. 201 ◽

Cited By ~ 2

Author(s):

TULIO F. VILLALOBOS-GUERRERO ◽

TORKILD BAKKEN

Keyword(s):

Pacific Ocean ◽

North Pacific ◽

Species Complex ◽

North Pacific Ocean ◽

Valid Species ◽

Distinctive Features ◽

The North ◽

The Status ◽

First Time ◽

The North Pacific

Alitta virens species complex encompasses elongate nereidids appreciated commercially both in the fishing and aquaculture industries. This complex has been well studied in biological and ecological terms. Nevertheless, detailed taxonomic analyses have scarcely been addressed, to the extent that only a few species in the complex have been recognized as valid but with some difficulties: Alitta brandti Malmgren, 1865 (Sea of Okhotsk), A. grandis (Stimpson, 1853) (northeastern USA) and A. virens (Sars, 1835) (Norway). Whereas, other several species have typically been regarded as synonyms, including those originally described from the North Pacific Ocean: Nereis (Alitta) virens plenidentata Moore, 1909 (California, USA), Nereis dyamusi Izuka, 1912 (Japan) and Nereis foliata Baird, 1863 (Vancouver, Canada). In this study, an examination of the immature and epitoke type and non-type material available for the A. virens species complex from the North Pacific was carried out. Herein, the status of A. brandti as a valid species is reinforced being clearly distinct from A. virens and related species. Alitta dyamusi n. comb., A. plenidentata n. comb. and A. williami nom. nov. are reinstated and transferred to Alitta, the specific epithet of the latter species is a replacement name for Nereis foliata Baird, 1863, which is a junior, primary homonym of Nereis foliata Dalyell, 1853. Lectotypes for A. plenidentata n. comb. and A. williami nom. nov. are designated. The North Pacific species of the A. virens complex, excluding A. plenidentata n. comb. which has several distinctive features that differ from all the Alitta species, are characterized by having homogomph spinigers in both supracicular and subacicular neurochaetae, oral ring with a larger number of rows and paragnaths, and epitoke males with unmetamorphosed pygidium and epitoke-modified chaetae in both neuropodial fascicles. The morphology of epitoke females in the A. virens complex is described for the first time. Identification keys to atoke and epitoke species of this complex are also provided.

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Rhinoraja longi, a new species of skate from the outer Aleutian Islands, with comments on the status of Rhinoraja (Chondrichthyes, Rajoidei)

Canadian Journal of Zoology ◽

10.1139/z91-262 ◽

1991 ◽

Vol 69 (7) ◽

pp. 1889-1903 ◽

Cited By ~ 4

Author(s):

W. Raschi ◽

J. D. McEachran

Keyword(s):

New Species ◽

North Pacific ◽

Aleutian Islands ◽

Skeletal Structure ◽

Crown Height ◽

The North ◽

The Status ◽

Dermal Denticle ◽

The North Pacific ◽

A New Species

Discovery of a new species of skate, Rhinoraja longi, from the outer Aleutian Islands led to a re-evaluation of the status and species composition of this genus. Rhinoraja is presently distinguished from Bathyraja primarily by its basally segmented rostral shaft and slightly longer tail. The genus contains five species plus the new species, and is endemic to the North Pacific arc, from Hokkaido, Japan, to the Aleutian Islands. The six species are very similar in morphology, meristics, and skeletal structure but differ substantially from each other in dermal denticle characters. Salient features of systematic significance in the dermal skeleton include the density and the relative proportions of total height, base height, and crown height of the denticles. The number and distribution of normal and alar thorns are also important.

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Ecological factors differentially affect mercury levels in two species of sympatric marine birds of the North Pacific

The Science of The Total Environment ◽

10.1016/j.scitotenv.2010.12.022 ◽

2011 ◽

Vol 409 (7) ◽

pp. 1328-1335 ◽

Cited By ~ 11

Author(s):

J.M. Hipfner ◽

K.A. Hobson ◽

J.E. Elliott

Keyword(s):

North Pacific ◽

Ecological Factors ◽

Marine Birds ◽

The North ◽

The North Pacific

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A NEW SPECIES OF LECITHOPHYLLUM FROM NORTH PACIFIC FISHES WITH A CONSIDERATION OF THE TAXONOMY OF THE GENERA LECITHOPHYLLUM, APONURUS, AND BRACHADENA (TREMATODA: HEMIURIDAE)

Canadian Journal of Zoology ◽

10.1139/z58-077 ◽

1958 ◽

Vol 36 (6) ◽

pp. 893-904 ◽

Cited By ~ 5

Author(s):

L. Margolis

Keyword(s):

British Columbia ◽

New Species ◽

North Pacific ◽

Oncorhynchus Nerka ◽

Merluccius Productus ◽

The North ◽

The Status ◽

The North Pacific ◽

A New Species

Lecithophyllum anteroporum n. sp. is described from Merluccius productus from British Columbia waters. Other hosts in the North Pacific are Oncorhynchus nerka and O. gorbuscha. The status of the genera Lecithophyllum Odhner, Aponurus Looss, and Brachadena Linton, and allocation of species within these genera are discussed. Keys to separate the three genera and the four species of Lecithophyllum are presented. Aponurus intermedius Manter is transferred to Lecithophyllum with L. fuscum Yamaguti as a synonym.

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