The marine algae of British Columbia, northern Washington, and southeast Alaska: division Rhodophyta (red algae), class Rhodophyceae, order Gelidiales

1989 ◽  
Vol 67 (11) ◽  
pp. 3295-3314 ◽  
Author(s):  
Dawn E. Renfrew ◽  
Paul W. Gabrielson ◽  
Robert F. Scagel
Keyword(s):  
British Columbia ◽  
Marine Algae ◽  
Algal Flora ◽  
Historical Time ◽  
Southeast Alaska ◽  
Strait Of Georgia ◽  
Northeast Pacific ◽  
Red Algal ◽  
Marine Algal ◽  
First Time

The red algal order Gelidiales is represented in the benthic marine algal flora of British Columbia, northern Washington, and southeast Alaska by two genera, Gelidium Lamouroux and Pterocladia J. Agardh. Three species of Gelidium are present, G. coulteri Harvey, G. purpurascens Gardner, and G. vagum Okamura, and one species of Pterocladia, P. caloglossoides (Howe) Dawson. For each species we provide a description of its habit and life history, vegetative and reproductive morphology, and habitat and seasonality. Distributions and representative specimens examined are given. Keys are provided to genera and species where appropriate. Habits, and salient vegetative and reproductive features useful in identifying each species, are illustrated. Gelidium vagum is reported for the first time in the northeast Pacific and appears to have been introduced to the flora from Japan in recent historical time. Its distribution is limited to two islands in the Strait of Georgia. Gelidium purpurascens and Pterocladia caloglossoides are distributed throughout British Columbia and northern Washington, and their ranges are extended north to southeast Alaska. Earlier reports of G. amansii (Lamouroux) Lamouroux, G. crinale (Turner) Lamouroux, G. pusillum (Stackhouse) Le Jolis, G. robustum (Gardner) Hollenberg et Abbott, and G. sinicola Gardner from British Columbia and northern Washington are shown to have been based upon misidentifications of other taxa, and these species are excluded from the flora.

The marine algae of British Columbia, northern Washington, and southeast Alaska: division Rhodophyta (red algae), class Rhodophyceae, order Gigartinales, families Caulacanthaceae and Plocamiaceae

1989 ◽  
Vol 67 (4) ◽  
pp. 1221-1234 ◽  
Author(s):  
Paul W. Gabrielson ◽  
Robert F. Scagel
Keyword(s):  
British Columbia ◽  
Type Species ◽  
Marine Algae ◽  
Southeast Alaska ◽  
Northeast Pacific ◽  
The Family ◽  
Type C ◽  
Global And Local ◽  
Floristic Treatment ◽  
Plocamium Cartilagineum

This is a floristic treatment of the gigartinalean families Caulacanthaceae and Plocamiaceae that occur in southeast Alaska, British Columbia, and northern Washington. Caulacanthaceae is represented by one genus, Caulacanthus Kützing, and one species, the type, C. ustulatus (Mertens ex Turner) Kützing, whereas Plocamiaceae is represented by two genera, Plocamiocolax Setchell, including the type species, P. pulvinata Setchell, and Plocamium Lamouroux, including three species, P. cartilagineum (L.) Dixon, P. oregonum Doty, and P. violaceum Farlow. For each species, we provide a description of its habit and life history, vegetative and reproductive morphology, habitat and seasonality, and list its global and local distributions and the representative specimens examined. Keys are provided to genera and species where appropriate. The habit and salient vegetative and reproductive features that can be used to distinguish the taxon in the local flora are illustrated. Emended diagnoses are provided for the family Caulacanthaceae, for the genus Plocamiocolax, and for the species Plocamiocolax pulvinata and Plocamium oregonum. Reasons are given for not recognizing the northeast Pacific specimens of Plocamium cartilagineum as a distinct subspecies. Plocamium tenue Kylin is considered a synonym of P. violaceum. A neotype is designated for Plocamiocolax pulvinata. Lectotypes are designated for P. pacificum Kylin and for P. tenue Kylin.

The marine algae of British Columbia, northern Washington, and southeast Alaska: division Rhodophyta (red algae), class Rhodophyceae, order Gigartinales, family Dumontiaceae, with an introduction to the order Gigartinales

1987 ◽  
Vol 65 (11) ◽  
pp. 2202-2232 ◽  
Author(s):  
Sandra C. Lindstrom ◽  
Robert F. Scagel
Keyword(s):  
British Columbia ◽  
Red Algae ◽  
Life Histories ◽  
Marine Algae ◽  
Type Specimens ◽  
Southeast Alaska ◽  
The Family ◽  
Marine Algal

The benthic marine algal order Gigartinales (Rhodophyta) is introduced, and a key to the families found between Cross Sound, Alaska, and northern Washington is provided. The family Dumontiaceae is monographed. Ten of 16 currently recognized genera and 14 of some 48 recognized species are described and illustrated: Constantinea rosa-marina (Gmelin) Postels et Ruprecht, C. simplex Setchell, C. subulifera Setchell, Cryptosiphonia woodii (J. G. Agardh) J. G. Agardh, Dilsea California (J. G. Agardh) Kuntze, Dumontia contorta (Gmelin) Ruprecht, D. simplex Cotton, Farlowia mollis (Harvey et Bailey) Farlow et Setchell in Collins, Holden, et Setchell, Neodilsea borealis (Abbott) Lindstrom, N. natashae Lindstrom, Orculifilum denticulatum Lindstrom, Pikea californica Harvey, Thuretellopsis peggiana Kylin, and Weeksia coccinea (Harvey) Lindstrom. Farlowia compressa J. G. Agardh is recognized as a taxonomic synonym of F. mollis, and Pikea robusta Abbott as a taxonomic synonym of Pikea californica. Vegetative keys to the genera and species of the family are also included. Basionyms, synonyms, type specimens, type localities, and what is known about life histories, distributions, phenologies, and habitats of the species are given. Representative specimens are cited.

Factors influencing the distribution of Egregia menziesii (Phaeophyta, Laminariales) in British Columbia, Canada

1978 ◽  
Vol 56 (9) ◽  
pp. 1198-1205 ◽  
Author(s):  
D. K. Gordon ◽  
R. E. DE Wreede
Keyword(s):  
British Columbia ◽  
High Temperature ◽  
Laboratory Experiments ◽  
Algal Flora ◽  
The West ◽  
Common Component ◽  
Strait Of Georgia ◽  
Low Salinity ◽  
Factors Influencing ◽  
Juan De Fuca

Egregia menziesii (Turner) Areschoug is a common component of the algal flora along the west coast of Vancouver Island, Queen Charlotte Strait, and the Strait of Juan de Fuca but is absent from the Strait of Georgia in British Columbia, Canada. This distribution pattern was found to be correlated with temperature and salinity in that E. menziesii is not present in areas where there are seasonal periods of low salinity and high temperature. To test this correlation, field transplants of sporophytes and laboratory experiments with sporophytes and culture work were carried out. The results suggest that the distribution of E. menziesii is limited by specific combinations of salinity and temperature; it requires high salinities and temperatures less than 15 °C for its survival.

The shallow sublittoral marine ecology of Aldabra

1971 ◽  
Vol 260 (836) ◽  
pp. 123-171 ◽  
Keyword(s):  
Marine Algae ◽  
Marine Ecology ◽  
Preliminary Treatment ◽  
Algal Flora ◽  
Direct Wave ◽  
Calm Water ◽  
Marine Angiosperms ◽  
Marine Algal ◽  
Pool Area ◽  
Marine Angiosperm

The paper represents a preliminary treatment of the marine ecology of certain areas of the shallow sublittoral, mostly on West Island, on Aldabra. Seaward reefs on West Island are, for this island group, calm water localities. Detailed examinations of profiles, and additional observations, indicate that ‘ zones ’ can be recognized in the shallow sublittoral, but these ‘zones’ are more a function of the nature and physiography of the substrate and of the presence and density of marine Angiosperm vegetation than of the marine algae. Luxuriant marine algal flora is, on the reef-flat, found only in deep pools or channels landward of the ‘reef-ridge’, most commonly in the inner ridge/pool area. These circumstances seem to provide protection from direct wave action, together with adequate depth of water at all times. Similar conditions apparently apply in the area immediately lagoon ward of Western Channels, where a most luxuriant ‘turf’ of marine algae and marine angiosperms was located. The biomass of marine vegetation there was quite outstanding for Aldabra, representing a cover of virtually 100%, with much additional growth of one species over another throughout most of the `turf’ area.

Effects of a fluctuation in Fraser River discharge of primary production in the central Strait of Georgia, British Columbia, Canada

1997 ◽  
Vol 54 (5) ◽  
pp. 1015-1024 ◽  
Author(s):  
K Yin ◽  
P J Harrison ◽  
R J Beamish
Keyword(s):  
British Columbia ◽  
Primary Production ◽  
River Discharge ◽  
Euphotic Zone ◽  
Early Summer ◽  
Phytoplankton Production ◽  
Fraser River ◽  
Strait Of Georgia ◽  
Chl A ◽  
First Time

High-resolution vertical profiles of salinity, temperature, fluorescence, and nutrients (NO3 and SiO4) were taken along a transect in the central Strait of Georgia, British Columbia. The Fraser River discharge increased rapidly over 4 days and then decreased over the following 3 days (June 16-19, 1991). The thickness and extent of the estuarine plume increased as a response to the increased river discharge. As the estuarine plume flowed seaward, the nutricline (NO3) became shallower and broader, resulting in an increase in NO3 in the euphotic zone. Entrainment of NO3 may explain the increase in NO3 in the surface layer, and the amount of NO3 entrained was estimated to be 5-10 times higher than river-borne NO3. The utilization of entrained nutrients increased Chl a concentrations and primary production to levels comparable with spring bloom values. Our results clearly demonstrated for the first time that entrainment of nutrients and phytoplankton production in the central Strait of Georgia are closely coupled to fluctuations in the Fraser River discharge as the estuarine plume moves seaward. The timing and magnitude of the May-June freshet could control the entrainment of nutrients and thus maintain high primary productivity in late spring - early summer.

scholarly journals Marine algal flora of São Miguel Island, Azores

2021 ◽  
Vol 9 ◽  
Author(s):  
Ana I Neto ◽  
Ignacio Moreu ◽  
Edgar Rosas Alquicira ◽  
Karla León-Cisneros ◽  
Eva Cacabelos ◽  
...  
Keyword(s):  
Marine Algae ◽  
New Records ◽  
Algal Flora ◽  
Eastern Group ◽  
The Past ◽  
Presence Data ◽  
Marine Algal ◽  
The Many ◽  
The University

The macroalgal flora of the Island of São Miguel (eastern group of the Azores Archipelago) has attracted the interest of many researchers in the past, the first publications going back to the nineteenth century. Initial studies were mainly taxonomic, resulting in the publication of a checklist of the Azorean benthic marine algae. Later, the establishment of the University of the Azores on the Island permitted the logistic conditions to develop both temporal studies and long-term research and this resulted in a significant increase on research directed at the benthic marine algae and littoral communities of the Island and consequent publications. Prior to the present paper, the known macroalgal flora of São Miguel Island comprised around 260 species. Despite this richness, a significant amount of the research was never made public, notably Masters and PhD theses encompassing information regarding presence data recorded at littoral and sublittoral levels down to a depth of approximately 40 m around the Island and the many collections made, which resulted in vouchers deposited in the AZB Herbarium Ruy Telles Palhinha and the LSM- Molecular Systematics Laboratory at the Faculty of Sciences and Technology of the University of the Azores. The present publication lists the macroalgal taxonomic records, together with information on their ecology and occurrence around São Miguel Island, improving the knowledge of the Azorean macroalgal flora at local and regional scales. A total of 12,781 specimens (including some identified only to genus) belonging to 431 taxa of macroalgae are registered, comprising 284 Rhodophyta, 59 Chlorophyta and 88 Ochrophyta (Phaeophyceae). Of these, 323 were identified to species level (212 Rhodophyta, 48 Chlorophyta and 63 Ochrophyta), of which 61 are new records for the Island (42 Rhodophyta, 9 Chlorophyta and 10 Ochrophyta), one an Azorean endemic (Predaea feldmannii subsp. azorica Gabriel), five are Macaronesian endemisms (the red algae Botryocladia macaronesica Afonso-Carrillo, Sobrino, Tittley & Neto, Laurencia viridis Gil-Rodríguez & Haroun, Millerella tinerfensis (Seoane-Camba) S.M.Boo & J.M.Rico, Phyllophora gelidioides P.Crouan & H.Crouan ex Karsakoff and the green alga Codium elisabethiae O.C.Schmidt), 19 are introduced species (15 Rhodophyta, two Chlorophyta and two Ochrophyta) and 32 are of uncertain status (21 Rhodophyta, five Chlorophyta and six Ochrophyta).

Observations on the migrations of North Pacific humpback whales (Megaptera novaeangliae)

1985 ◽  
Vol 63 (2) ◽  
pp. 308-314 ◽  
Author(s):  
James D. Darling ◽  
Daniel J. McSweeney
Keyword(s):  
British Columbia ◽  
North Pacific ◽  
Ventral Side ◽  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Prince William Sound ◽  
White Pigment ◽  
Southeast Alaska ◽  
Black And White ◽  
Northeast Pacific

Migratory destinations of northeast Pacific humpback whales (Megaptera novaeangliae) were determined by repeat sightings of photographically identified individuals, using the black and white pigment patterns on the ventral side of the flukes. Individuals identified between 1975 and 1982 included 1056 in Hawaii, 420 in southeast Alaska, 54 in Prince William Sound, Alaska, 8 in British Columbia, and 12 in the Revillagigedo Islands, Mexico. Of these, 51 were found in Hawaii and southeast Alaska, 8 in Hawaii and Prince William Sound, 1 in Hawaii and British Columbia, and 1 in Mexico and Hawaii. Some travelled for four, five, and six successive seasons between Hawaii and southeast Alaska. One whale was found in British Columbia one summer and in southeast Alaska the next; the same individuals were commonly found off both Kona, Hawaii, and West Maui in winter. The study suggests that separate summer feeding areas may exist in the northeast Pacific where individuals prefer to feed. Migratory connections suggest that all humpbacks in the eastern North Pacific are of the same stock.

The marine algae of the Solomon Islands and their place in biotic reefs

1969 ◽  
Vol 255 (800) ◽  
pp. 433-442 ◽  
Keyword(s):  
Marine Algae ◽  
Solomon Islands ◽  
North Coast ◽  
General Situation ◽  
Algal Flora ◽  
Tropical Regions ◽  
North West ◽  
North East ◽  
The North ◽  
Marine Algal

The Royal Society Expedition to the Solomon Islands aimed at examining the biogeographical relationships between these islands and other island systems of the western tropical Pacific. The marine party also studied intertidal and reef ecology. Comprehensive collections of benthic marine algae were made at the main localities visited (Florida Islands, north-west and south-east Guadalcanal, Matiu Island off the north coast and Batuona and Ulukoro Islands off the south coast of New Georgia, Banika Island in the Russell Islands, and south-east Gizo Island). Additional small collections were obtained from Kolombangara and the north coast of San Cristobal. Habitat notes accompanied each collection and preliminary determinations were made in the field where possible. General ecological observations on the reefs included profiles selected after a preliminary survey of an area. Such profiles (see below) indicate the general situation but are not based on detailed transect work; restricted time and the great variation in distribution of organisms over the reef surface (especially in the moat) rendered isolated detailed transects of limited value. The marine algal flora of the Solomon Islands has been one of the least known in tropical regions. Setchell (1935) recorded nine species from Malaita Island and also several taxa from Sikaiana Island (in the Stewart Islands, north-east of Malaita Island) and from Bellona Island, south of the Solomon Islands. Levring (i960) recorded a number of species from Rennell Island, near Bellona Island. Otherwise there are only a few scattered records in taxonomic monographs.

Vertical Distributions of Some Benthic Marine Algae in a British Columbia Inlet, as Related to Some Environmental Factors

1967 ◽  
Vol 24 (1) ◽  
pp. 33-46 ◽  
Author(s):  
Louis D. Druehl
Keyword(s):  
British Columbia ◽  
Surface Waters ◽  
Marine Algae ◽  
Distribution Data ◽  
Costaria Costata ◽  
Low Salinity ◽  
Northeast Pacific ◽  
Upper Limits ◽  
Vertical Distributions ◽  
The Vertical Distribution

The vertical distribution of 12 benthic marine algae and one animal are described for Indian Arm, an inlet in British Columbia. In general, the vertical distributions had distinct limits and the relative vertical positions of the species were constant throughout the inlet. The relative vertical distributions of the biota within the inlet are essentially the same as described for the northeast Pacific by other authors concerned with the same biotic elements. However, the upper limits of Laminaria saccharina (L.) Lamouroux, Costaria costata (Turn.) Saunders, and Constantinea subulifera Setchell are from 1 to 3 m lower within the inlet than elsewhere, whereas those of Agarum cribosum Bory, Fucus evanescens C. Agardh, and Sargassum muticum (Yendo) Fensholt are essentially the same within and outside of the inlet. For the remaining species studied (Enteromorpha compressa (L.) Greville, E. linza (L.) J. Agardh, E. intestinalis (L.) Link, Monostroma fuscum (Postels & Ruprecht) Wittrock, Ulva lactuca Linnaeus, Navicula grevillei (C. Ag.) Cleve, and Balanus glandulus (Darwin)) there were no comparable distribution data outside of the inlet.Available data suggest the deepening of the upper limits of some algae in Indian Arm reflects their intolerance to the high temperature and low salinity of the surface waters of the inlet.

scholarly journals New marine algal records from Arabian Gulf coastline of Kuwait

2021 ◽  
Author(s):  
REDHA H. AL-HASAN ◽  
◽  
FATEMAH M. AL-KHERAINEJ ◽  
Keyword(s):  
Coastal Area ◽  
Marine Algae ◽  
New Records ◽  
Algal Species ◽  
Arabian Gulf ◽  
Current Status ◽  
Epiphytic Diatoms ◽  
Marine Algal ◽  
First Time ◽  
Marine Angiosperm

During 2014-2016 a project was launched to update and examine the current status of five phyla of benthic marine algae, in addition to epiphytic diatoms and marine Tracheophyta thriving along the coastal area of Kuwait. 173 species of algae were collected and identified. Fourteen new records of algal species for Kuwait including 2 species as new records from the Arabian Gulf are here reported for the first time. These species are assigned to the Chlorophyta (4), Ochrophyta (1), Rhodophyta (5) and Cyanobacteria (4). From Kuwait coastal line one species of marine angiosperm is also found for the first time. Five algal species collected from Kuwait coastal line remain unidentified.

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