Movements and distribution of juvenile common thresher sharks Alopias vulpinus in Pacific coast waters of the USA and Mexico

2016 ◽  
Vol 548 ◽  
pp. 153-163 ◽  
Author(s):  
D Cartamil ◽  
J Wraith ◽  
NC Wegner ◽  
D Kacev ◽  
CH Lam ◽  
...  
Keyword(s):  
Pacific Coast ◽  
The Usa ◽  
Alopias Vulpinus ◽  
Thresher Sharks

Status, correlations and temporal trends of chemical contaminants in fish and sediment from selected sites on the Pacific Coast of the USA

1998 ◽  
Vol 37 (1-2) ◽  
pp. 67-85 ◽  
Author(s):  
Donald W Brown ◽  
Bruce B McCain ◽  
Beth H Horness ◽  
Catherine A Sloan ◽  
Karen L Tilbury ◽  
...  
Keyword(s):  
Pacific Coast ◽  
Temporal Trends ◽  
Chemical Contaminants ◽  
The Pacific ◽  
The Usa

First record of the sea anemone Nematostella vectensis (Actiniaria: Edwardsiidae) in Southern Hemisphere waters

Zootaxa ◽  
2010 ◽  
Vol 2343 (1) ◽  
pp. 66 ◽  
Author(s):  
JANINE F. SILVA ◽  
CARLOS A. C. LIMA ◽  
CARLOS D. PEREZ ◽  
PAULA B. GOMES
Keyword(s):  
Southern Hemisphere ◽  
Pacific Coast ◽  
Atlantic Coast ◽  
First Record ◽  
The United States ◽  
Sea Anemone ◽  
Nematostella Vectensis ◽  
Brazilian Coast ◽  
The Pacific ◽  
The Usa

This is the first record of the starlet sea anemone, Nematostella vectensis Stephenson, 1935, in Southern Hemisphere waters. Specimens of N. vectensis were collected in the surroundings of the Port of Recife, Pernambuco, Brazil. The species is native to the Atlantic coast of the United States of America; populations along the Pacific coast of the USA and the coasts of England are the result of anthropogenic introduction, probably associated with ships and boats used in oyster commerce (Sheader et al. 1997; Pearson et al. 2002; Reitzel et al. 2008). The present study extends the latitudinal distribution of this species, and we discuss the presence on the Brazilian coast of this exotic species.

scholarly journals Archival tagging of subadult and adult common thresher sharks (Alopias vulpinus) off the coast of southern California

2011 ◽  
Vol 158 (4) ◽  
pp. 935-944 ◽  
Author(s):  
Daniel P. Cartamil ◽  
Chugey A. Sepulveda ◽  
Nicholas C. Wegner ◽  
Scott A. Aalbers ◽  
Andres Baquero ◽  
...  
Keyword(s):  
Southern California ◽  
Alopias Vulpinus ◽  
Thresher Sharks

scholarly journals Diphyllobothrium sprakeri n. sp. (Cestoda: Diphyllobothriidae): a hidden broad tapeworm from sea lions off North and South America

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Jesús S. Hernández-Orts ◽  
Tetiana A. Kuzmina ◽  
Luis A. Gomez-Puerta ◽  
Roman Kuchta
Keyword(s):  
New Species ◽  
Pacific Coast ◽  
Mitochondrial Gene ◽  
Ribosomal Subunit ◽  
Zalophus Californianus ◽  
California Sea Lions ◽  
Sea Lions ◽  
The Pacific ◽  
The Usa ◽  
A New Species

Abstract Background The systematic of several marine diphyllobothriid tapeworms of pinnipeds has been revised in recent years. However, 20 species of Diphyllobothrium from phocids and otariids are still recognized as incertae sedis. We describe a new species of Diphyllobothrium from the intestine of California sea lions Zalophus californianus (Lesson) (type-host) and South American sea lions Otaria flavescens (Shaw). Methods Zalophus californianus from the Pacific coast of the USA and O. flavescens from Peru and Argentina were screened for parasites. Partial fragments of the large ribosomal subunit gene (lsrDNA) and the cytochrome c oxidase subunit 1 (cox1) mitochondrial gene were amplified for 22 isolates. Properly fixed material from California sea lions was examined using light and scanning electron microscopy. Results A total of four lsrDNA and 21 cox1 sequences were generated and aligned with published sequences of other diphyllobothriid taxa. Based on cox1 sequences, four diphyllobothriid tapeworms from O. flavescens in Peru were found to be conspecific with Adenocephalus pacificus Nybelin, 1931. The other newly generated sequences fall into a well-supported clade with sequences of a putative new species previously identified as Diphyllobothrium sp. 1. from Z. californianus and O. flavescens. A new species, Diphyllobothrium sprakeri n. sp., is proposed for tapeworms of this clade. Conclusions Diphyllobothrium sprakeri n. sp. is the first diphyllobothriid species described from Z. californianus from the Pacific coast of North America, but O. flavescens from Argentina, Chile and Peru was confirmed as an additional host. The present study molecularly confirmed the first coinfection of two diphyllobothriid species in sea lions from the Southern Hemisphere.

Phylogeny of Hesionidae (Aciculata, Annelida), with four new species from deep-sea eastern Pacific methane seeps, and resolution of the affinity of Hesiolyra

2018 ◽  
Vol 32 (5) ◽  
pp. 1050 ◽  
Author(s):  
Greg W. Rouse ◽  
Jose Ignacio Carvajal ◽  
Fredrik Pleijel
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Dna Sequences ◽  
Deep Sea ◽  
Hydrothermal Vents ◽  
Pacific Coast ◽  
Cold Seeps ◽  
Methane Seeps ◽  
The Pacific ◽  
The Usa

Hesionidae Grube, 1850 currently comprises over 175 species in 28 genera, placed in several subfamilies. Discoveries in recent years have largely been of deep-sea taxa. Here we describe a further four new hesionid species, mainly from methane ‘cold’ seeps at around 1000–1800 m depths off the Pacific coast of Costa Rica and new record of another species. Several of these taxa also occur at methane seeps in the Guaymas Basis (Mexico) and off the USA west coast (California and Oregon). The phylogenetic relationships within Hesionidae are reassessed via maximum parsimony and maximum likelihood analyses of DNA sequences from nuclear (18S rRNA and 28SrRNA) and mitochondrial (16SrRNA and Cytochrome c oxidase I) loci for the new samples. On the basis of these results, we refer one of the new species to Gyptis Marion & Bobretzky in Marion, 1874, one to Neogyptis Pleijel, Rouse, Sundkvist & Nygren, 2012, and two to Sirsoe Pleijel, 1998. The new species Gyptis robertscrippsi n. sp., Neogyptis jeffruoccoi n. sp., Sirsoe dalailamai n. sp. and Sirsoe munki n. sp. We refer to a collection of individuals from seeps ranging from Oregon to Costa Rica as Amphiduropsis cf. axialensis (Blake & Hilbig, 1990), even though this species was described from hydrothermal vents off Oregon. Neogyptis jeffruoccoi n. sp. was generally found living inside the solemyid clam Acharax johnsoni (Dall, 1891). The position of Hesiolyra bergi Blake, 1985 is resolved on the basis of newly-collected specimens from near the type locality and, as a result, Hesiolyrinae Pleijel, 1998 is synonymized with Gyptini Pleijel, 1998 (and Gyptinae Pleijel, 1998). http://zoobank.org/urn:lsid:zoobank.org:pub:9C0E88EE-34F8-4F25-9EC8-91797618AC86

Post-release survivorship studies on common thresher sharks (Alopias vulpinus) captured in the southern California recreational fishery

2015 ◽  
Vol 161 ◽  
pp. 102-108 ◽  
Author(s):  
C.A. Sepulveda ◽  
C. Heberer ◽  
S.A. Aalbers ◽  
N. Spear ◽  
M. Kinney ◽  
...  
Keyword(s):  
Southern California ◽  
Recreational Fishery ◽  
Alopias Vulpinus ◽  
Thresher Sharks
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