Palmaria hecatensis sp. nov. (Rhodophyta, Palmariales) from British Columbia and Alaska with a survey of other Palmaria species

1985 ◽  
Vol 63 (3) ◽  
pp. 474-482 ◽  
Author(s):  
Michael W. Hawkes
Keyword(s):  
British Columbia ◽  
Pacific Ocean ◽  
Geographical Distribution ◽  
North Pacific ◽  
North Pacific Ocean ◽  
Aleutian Islands ◽  
Rocky Shores ◽  
Intertidal Zones ◽  
The North ◽  
The North Pacific

Palmaria hecatensis sp. nov. is described based on material from northern British Columbia. Male gametophytes and tetrasporophytes are thick, coriaceous, flattened blades, linear to lobed in habit and arise from an extensive encrusting basal holdfast. Putative female gametophytes are microscopic multicellular discs. Palmaria hecatensis grows on rocky shores in the midintertidal to lower intertidal zones and has a known geographical distribution from Nootka Island, Vancouver Island, B.C., to Shemya Island in the Aleutian Islands, Alaska. Palmaria hecatensis is compared with other species in the genus and, in addition, another distinctive (and possibly undescribed) Palmaria species from British Columbia and Alaska is discussed, bringing the total number of Palmaria species reported in the North Pacific Ocean to six.

scholarly journals XXXIII.—The Alcyonarians of the Scottish National Antarctic Expedition

1906 ◽  
Vol 41 (3) ◽  
pp. 851-860 ◽  
Author(s):  
J. Arthur Thomson ◽  
James Ritchie
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Geographical Distribution ◽  
North Pacific ◽  
North Pacific Ocean ◽  
The North ◽  
Antarctic Expedition ◽  
St Helena ◽  
The North Pacific ◽  
Burdwood Bank

The Aleyonarians collected by Mr W. S. Bruce on the Scotia voyage represent nine species—six of which are new, namely:—Primnoisis ramosa, n. sp.Thonarella brucci, n. sp.Amphilaphis regularis, Wright and Studer.Primnoella scotiæ, n. sp.Primnoella magellanica, Studer.Paramuricea robusta, n. sp.Gorgonia wrighti, n. sp.Gorgonia studeri, n. sp.Umbellula durissima, Kölliker.Apart from the six new species, the collection is of interest in extending our knowledge of the geographical distribution of previously recorded forms. Thus Amphilaphis regularis, Wright and Studer, previously collected off Inaccessible Island, Tristan da Cunha, and off Nightingale Island, was got in abundance off St Helena; Primnoella magellanica, Studer, previously collected off Monte Video and in the Magellan Straits, was obtained at Burdwood Bank 54° 25′ S., 57° 32′ W.; while Umbellula durissima, Wright and Studer, previously obtained by the Challenger from the North Pacific Ocean, south of Yeddo, was found by the Scotia at 48° 06′ S., 10° 5′ W.

Age-specific effects of sockeye abundance on adult body size of selected British Columbia sockeye stocks

1995 ◽  
Vol 52 (5) ◽  
pp. 1050-1063 ◽  
Author(s):  
Skip McKinnell
Keyword(s):  
British Columbia ◽  
Pacific Ocean ◽  
North Pacific ◽  
Sockeye Salmon ◽  
North Pacific Ocean ◽  
Common Factor ◽  
Bristol Bay ◽  
The North ◽  
Skeena River ◽  
The North Pacific

Annual mean body lengths of adult sockeye salmon (Oncorhynchus nerka) covary systematically from year to year in major northern and central British Columbia stocks (Nass River, Skeena River, and Rivers Inlet). These positive correlations are greatest between sexes within rivers, followed by age-classes among rivers. A common factor or factors affecting sockeye length in the North Pacific Ocean is suggested. The mean length of age 1.3 sockeye salmon but not age 1.2 sockeye caught annually in these B.C. fisheries was negatively correlated with the magnitude of Bristol Bay (western Alaska) sockeye catches. During the spring of maturation, age 1.3 sockeye from these B.C. stocks were further from their natal streams, and likely subject to more intense competition with Bristol Bay sockeye than age 1.2 sockeye. The pattern of annual marine growth measured from Skeena River sockeye scales collected during the 1960s provides additional evidence that the length of age 1.3 sockeye was related to Bristol Bay sockeye abundance in the year of maturation. No such correlation was evident in scales collected from age 1.2 sockeye. These results suggest that sockeye populations have more systematic distributions in the North Pacific Ocean than has been previously reported.

Histodermella kagigunensis sp. nov. from the Gulf of Alaska and Aleutian Islands; first records of the genus from the North Pacific

2012 ◽  
Vol 93 (5) ◽  
pp. 1245-1248
Author(s):  
Helmut Lehnert ◽  
Robert P. Stone ◽  
Wolfgang Heimler
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
North Pacific ◽  
North Pacific Ocean ◽  
Gulf Of Alaska ◽  
First Record ◽  
Aleutian Islands ◽  
The North ◽  
The North Pacific

The genus Histodermella grows to four species with the addition of H. kagigunensis sp. nov. from the North Pacific. The new species is described and compared with all congeners. Histodermella kagigunensis shows affinities to H. ingolfi Lundbeck 1910 as it has the same spicule types but differs clearly in size, habitus and the dimensions of two occurring spicule types. The discovery of H. kagigunensis represents the first record of the genus Histodermella in the North Pacific Ocean.

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