scholarly journals Fine-scale fisheries co-management through cooperative acoustic surveys

2018 ◽  
Author(s):  
OCTO
Keyword(s):  
Fisheries Management ◽  
North Pacific ◽  
Fishery Management ◽  
Aleutian Islands ◽  
Small Areas ◽  
The North ◽  
Acoustic Surveys ◽  
Temporal And Spatial ◽  
Management Council ◽  
The North Pacific

The authors describe a method of collaborative fisheries management offering both fine temporal- and spatial-scale resolution which was trialed in Alaska’s Aleutian Islands walleye pollock fishery. In this fishery, scientists, locals, and industry are highly-engaged and already involved in a co-management process set forth by the North Pacific Fishery Management Council. This methodology involves fishers using off-the-shelf commercial echosounders to conduct acoustic surveys in small areas to enhance existing fisheries data (such as estimates of total catch from fisheries observers) in an effort to allow more harvest without affecting nearby threatened species.

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 Strengthened Relationship between Tropical West Pacific and Midsummer Precipitation over Northeast China after the Mid-1990s

2020 ◽  
Vol 33 (16) ◽  
pp. 6833-6848
Author(s):  
Tingting Han ◽  
Minghua Zhang ◽  
Botao Zhou ◽  
Xin Hao ◽  
Shangfeng Li
Keyword(s):  
North Pacific ◽  
Northeast China ◽  
Aleutian Islands ◽  
Northwest Pacific ◽  
West Pacific ◽  
The North ◽  
Circulation Anomalies ◽  
The Relationship ◽  
The North Pacific ◽  
Central North Pacific

AbstractThe relationship between the tropical west Pacific (TWP) and East Asian summer monsoon/precipitation has been documented in previous studies. However, the stability for the signals of midsummer precipitation in the TWP sea surface temperature (SST_TWP), which is important for climate variation, has drawn little attention. This study identifies a strengthened relationship between the leading empirical orthogonal function mode (EOF1) of midsummer precipitation over Northeast China (NEC) and the SST_TWP after the mid-1990s. The EOF1 mode shows a significant positive correlation with the SST_TWP for 1996–2016, whereas the relationship is statistically insignificant for 1961–90. Further results indicate that the North Pacific multidecadal oscillation (NPMO) shifts to a positive phase after the 1990s. In the positive NPMO phase, the anomalous circulation over the northeast Pacific expands westward over the central North Pacific–Aleutian Islands region. Concurrently, the SST_TWP-associated wavelike pattern propagates northeastward from the west Pacific to the northwest Pacific and farther to the North Pacific, facilitating the poleward expansion and intensification of the SST_TWP-related circulation anomalies over the North Pacific. Therefore, the SST_TWP has an enhanced influence on NEC precipitation through the modulation of the circulation anomalies over the central North Pacific–Aleutian Islands region after the mid-1990s. Additionally, the tropical anticyclone/cyclone associated with the SST_TWP expands westward to South China, exerting an intensified impact on meridional wind anomalies along eastern China and on moisture transport over NEC. These conditions jointly contribute to the strengthened relationship between the SST_TWP and the EOF1 mode of NEC midsummer precipitation after the mid-1990s.

New species of Poecilosclerida (Demospongiae, Porifera) from the Aleutian Islands, Alaska, USA

Zootaxa ◽  
2006 ◽  
Vol 1155 (1) ◽  
pp. 1 ◽  
Author(s):  
HELMUT LEHNERT ◽  
ROBERT STONE ◽  
WOLFGANG HEIMLER
Keyword(s):  
New Species ◽  
North Pacific ◽  
Aleutian Islands ◽  
The North ◽  
The North Pacific

Five new species of poecilosclerid sponges, Artemisina amlia sp. nov., Coelosphaera oglalai sp. nov., Melonanchora globogilva sp. nov., Tedania kagalaskai sp. nov., and Mycale carlilei sp. nov, are described from the Aleutian Islands, Alaska, from depths ranging between 100–190m and are compared with congeners of the North Pacific Ocean.Keywords: Taxonomy, Porifera, Demospongiae, Poecilosclerida, new species, N-Pacific, Aleutian Islands, Alaska

The Sadiron Lamp of Kamchatka as a Clue to the Chronology of the Aleut

1946 ◽  
Vol 11 (3) ◽  
pp. 202-203
Author(s):  
George I. Quimby
Keyword(s):  
North Pacific ◽  
Cultural Development ◽  
Aleutian Islands ◽  
Bering Strait ◽  
The North ◽  
Kurile Islands ◽  
Cultural Connections ◽  
The North Pacific

Recent studies of trait distributions by Collins, de Laguna, and Heizer, have, in my opinion, demonstrated a cultural connection between southern Alaska, the Aleutian Islands, Kamchatka, and Kurile Islands. These circum- North Pacific cultural connections seem to have been established after settlement of all the areas mentioned and therefore are not properly a part of the problem of man's first entry into America.Southern Alaska, the Aleutian Islands, Kamchatka, and the Kurile Islands form a zone or rim around the North Pacific shores of Asia and America. Along this rim of the North Pacific there seems to have been a drifting of traits and trait complexes, both from America to Asia and from Asia to America. And for the most part, the cultural connections of the circum-North Pacific zone seem to have been rather independent of the diffusions and cultural development of the Bering Strait region.

Light Aircraft Navigation

1951 ◽  
Vol 4 (02) ◽  
pp. 167-177
Author(s):  
Michael Townsend
Keyword(s):  
South China Sea ◽  
South China ◽  
North Atlantic ◽  
North Pacific ◽  
Aleutian Islands ◽  
The North ◽  
Aircraft Navigation ◽  
The World ◽  
The North Atlantic ◽  
The North Pacific

This paper is an appreciation of the navigational problems encountered during a flight round the world in 1948, in a single-engined light aircraft. The route chosen (Fig. 2) covered nearly every type of flying weather in the world, from the perfect conditions of the Mediterranean in the summer to the severe climate of the Aleutian islands; navigation tests were provided by the overwater flights across the South China Sea (Hong Kong—Okinawa = 900 miles), the North Pacific (Chitose—Shemya = 1730 miles) and the North Atlantic.

Geodia starki sp. nov. (Porifera, Demospongiae, Astrophorida) from the Aleutian Islands, Alaska, USA

2013 ◽  
Vol 94 (2) ◽  
pp. 261-265 ◽  
Author(s):  
Helmut Lehnert ◽  
Robert P. Stone ◽  
David Drumm
Keyword(s):  
New Species ◽  
North Atlantic ◽  
Bering Sea ◽  
North Pacific ◽  
North Pacific Ocean ◽  
Aleutian Islands ◽  
The North ◽  
The North Atlantic ◽  
The North Pacific ◽  
A New Species

A new species of Geodia is described from the North Pacific, collected in the summer of 2012 in the western Aleutian Islands. Geodia starki sp. nov. differs from all known species of Geodia by the possession of two categories of sterrasters and exceptionally large megascleres. The new species is compared with congeners of the North Pacific Ocean, Bering Sea, Arctic and the North Atlantic Oceans.

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