scholarly journals Midwater fishes from the Gulf of California and the adjacent eastern tropical Pacific

1973 ◽  
Vol 242 ◽  
pp. 1-47
Author(s):  
Gary D Brewer
Keyword(s):  
Gulf Of California ◽  
Tropical Pacific ◽  
Eastern Tropical Pacific

Coral colonies in the eastern tropical Pacific: predation by Acanthaster cf. solaris

2018 ◽  
Vol 24 (4) ◽  
pp. 419
Author(s):  
J. C. Rodríguez-Vilalobos ◽  
A. Ayala-Bocos
Keyword(s):  
Gulf Of California ◽  
National Park ◽  
Threshold Value ◽  
Tropical Pacific ◽  
Scleractinian Corals ◽  
Historical Records ◽  
Eastern Tropical Pacific

The crown of thorns (CoTS; Acanthaster cf. solaris) have not been reported as an actual threat to reefs in the Gulf of California; however, in the Espiritu Santo Archipelago National Park, we have evidenced massive predation over scleractinian corals. Its abundance is now over outbreaks threshold value and it is higher than historical records

scholarly journals New species of the genus Mesocletodes Sars, 1909 from the deep Gulf of California (Copepoda, Harpacticoida)

ZooKeys ◽  
2018 ◽  
Vol 751 ◽  
pp. 75-112 ◽  
Author(s):  
Samuel Gómez
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Gulf Of California ◽  
Tropical Pacific ◽  
Eastern Tropical Pacific ◽  
Minimum Zone ◽  
Species Groups ◽  
Three New Species ◽  
Abundance And Diversity ◽  
Oxygen Minimum

Investigations on the effects of the oxygen minimum zone on the distribution, abundance, and diversity of deep-sea benthic and pelagic fauna of the Gulf of California and Eastern Tropical Pacific has received attention recently. However, very little is known about the diversity of deep-sea benthic harpacticoids from this region, and only three species,AncorabolushendrickxiGómez & Conroy-Dalton, 2002,CeratonotuselongatusGómez & Díaz, 2017 andDendropsylluscaliforniensisGómez & Díaz, 2017, have been described so far. The genusMesocletodesSars, 1909 is one of the most common and abundant genera of deep-sea harpacticoids. This genus has been traditionally subdivided into two species groups, theabyssicolaand theinermisgroups, based on the presence/absence of a dorsal cuticular process on the cephalothorax and anal somite, but some species have been reported to deviate from this scheme. As a result of their investigations, other researchers proposed the monophyly of theabyssicolagroup, and suggested the probable monophyly of two other species-groups. In this paper, the descriptions of three new species of the genusMesocletodesfrom the deep sea of the Gulf of California are presented with some notes on their relationships with other species. Some comments on the monophyly of the genus are given.

Notes on Chasmocarcinus latipes Rathbun, 1898 (Brachyura, Goneplacoidea, Chasmocarcinidae) from the Gulf of California, Mexico

Zootaxa ◽  
2018 ◽  
Vol 4471 (1) ◽  
pp. 195
Author(s):  
MICHEL E. HENDRICKX ◽  
MARGARITA HERMOSO-SALAZAR
Keyword(s):  
Continental Shelf ◽  
Gulf Of California ◽  
Tropical Pacific ◽  
Eastern Tropical Pacific ◽  
Mexican Pacific ◽  
Western Mexico ◽  
Brachyuran Crabs ◽  
Surrounding Areas

Brachyuran crabs from the Mexican Pacific and surrounding areas are well known and have been treated in several monographs (e.g., Garth 1958; Hendrickx 1997, 1999). Checklists of species occurring off western Mexico and the eastern tropical Pacific are also available (e.g., Hendrickx 1993, 1995, 2005). In many cases, particularly in species inhabiting the continental shelf or deeper waters, however, there is a significant lack of records due to sampling difficulty and cost. 

A new species of Paguristes Dana, 1851 (Anomura, Paguroidea, Diogenidae) from the Mexican Pacific

Zootaxa ◽  
2007 ◽  
Vol 1470 (1) ◽  
pp. 59-68 ◽  
Author(s):  
MANUEL AYÓN PARENTE ◽  
MICHEL E. HENDRICKX
Keyword(s):  
New Species ◽  
Hermit Crab ◽  
Gulf Of California ◽  
Tropical Pacific ◽  
Eastern Tropical Pacific ◽  
Western Atlantic ◽  
Mexican Pacific ◽  
A New Species

A new species of the hermit crab genus Paguristes, P. haigae n. sp., is described and illustrated from material collected in the Gulf of California, Mexico. Paguristes haigae n. sp. closely resembles P. tortugae Schmitt, 1933, from the western Atlantic and P. aztatlanensis Glassell, 1937 and P. oculiviolaceous Glassell, 1937, both previously known from the eastern tropical Pacific. Paguristes aztatlanensis features a proportionally much longer shield than P. haigae n. sp., an acute rostrum, longer than in P. haigae n. sp, and its ocular peduncle is proportionally shorter than in the new species; pereopods 2 and 3 are proportionally longer in P. aztatlanensis than in P. haigae n. sp. and third maxilliped of P. haigae n. sp. is armed while it is unarmed in P. aztatlanensis. P. oculiviolaceous posseses a relatively much longer antennule than P. haigae and the armature of the carpus of chelipeds varies in these two species. Paguristes haigae n. sp also shows somewhat resemblance to P. bakeri Holmes, 1900 and P. holmesi Glassell, 1937, but these two species have the anterior lobules of the telson unarmed while it is armed with 2–4 spines in P. haigae n. sp.

scholarly journals Sea-surface temperature records of Termination 1 in the Gulf of California: Challenges for seasonal and interannual analogues of tropical Pacific climate change

2012 ◽  
Vol 27 (2) ◽  
pp. n/a-n/a ◽  
Author(s):  
Erin L. McClymont ◽  
Raja S. Ganeshram ◽  
Laetitia E. Pichevin ◽  
Helen M. Talbot ◽  
Bart E. van Dongen ◽  
...  
Keyword(s):  
Climate Change ◽  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Gulf Of California ◽  
Tropical Pacific ◽  
Sea Surface ◽  
Temperature Records

Physical forcing and the dynamics of the pelagic ecosystem in the eastern tropical Pacific: simulations with ENSO-scale and global-warming climate drivers

2003 ◽  
Vol 60 (9) ◽  
pp. 1161-1175 ◽  
Author(s):  
George M Watters ◽  
Robert J Olson ◽  
Robert C Francis ◽  
Paul C Fiedler ◽  
Jeffrey J Polovina ◽  
...  
Keyword(s):  
Global Warming ◽  
Phytoplankton Biomass ◽  
Southern Oscillation ◽  
Tropical Pacific ◽  
Trophic Levels ◽  
Eastern Tropical Pacific ◽  
Ecosystem Models ◽  
Pelagic Ecosystem ◽  
Physical Forcing ◽  
Physical Effects

We used a model of the pelagic ecosystem in the eastern tropical Pacific Ocean to explore how climate variation at El Niño – Southern Oscillation (ENSO) scales might affect animals at middle and upper trophic levels. We developed two physical-forcing scenarios: (1) physical effects on phytoplankton biomass and (2) simultaneous physical effects on phytoplankton biomass and predator recruitment. We simulated the effects of climate-anomaly pulses, climate cycles, and global warming. Pulses caused oscillations to propagate through the ecosystem; cycles affected the shapes of these oscillations; and warming caused trends. We concluded that biomass trajectories of single populations at middle and upper trophic levels cannot be used to detect bottom-up effects, that direct physical effects on predator recruitment can be the dominant source of interannual variability in pelagic ecosystems, that such direct effects may dampen top-down control by fisheries, and that predictions about the effects of climate change may be misleading if fishing mortality is not considered. Predictions from ecosystem models are sensitive to the relative strengths of indirect and direct physical effects on middle and upper trophic levels.

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