Relative values of damage assessed for the Gulf of Mexico, the Atlantic coast and the Pacific coast

AbstractTwo new species of Isotogastrura, one from the Pacific coast and one from the Atlantic coast, are described: Isotogastrura ahuizotli sp.nov. and Isotogastrura veracruzana sp.nov. A key for the five species known at present is included.

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Taxonomy of Centropomus Lacépède, 1802 (Perciformes: Centropomidae), with focus on the Atlantic species of the genus

Zootaxa ◽

10.11646/zootaxa.4942.3.1 ◽

2021 ◽

Vol 4942 (3) ◽

pp. 301-338

Author(s):

JESSÉ MIRANDA DE FIGUEIREDO-FILHO ◽

ALEXANDRE P. MARCENIUK ◽

ANDERSON FEIJÓ ◽

RAQUEL SICCHA-RAMIREZ ◽

GIOVANA S. RIBEIRO ◽

...

Keyword(s):

Geometric Morphometrics ◽

Pacific Coast ◽

Atlantic Coast ◽

Lateral View ◽

Cytochrome C Oxidase I ◽

Linear Measurements ◽

Molecular Analyses ◽

Needed Information ◽

The Pacific ◽

Pacific Species

Centropomus Lacépède, 1802 comprises 13 species of the fishes popularly knows as snooks, distributed in both Atlantic and Pacific coasts of America. Despite several studies on the group, conflicting taxonomic classifications still exist, including overlapping diagnostic characters, rendering species diagnoses extremely difficult. Herein, we review the taxonomy of Centropomus to elucidate species identities, redefine their diagnoses and to assess interspecific relationships based on the examination of 376 specimens. The study included complementary approaches, as analyses of external morphologic characters, linear and geometric morphometrics, and molecular analyses. Forty-nine characters were used for external morphology, 17 discrete plus 32 linear measurements. Shape and size were analyzed through geometric morphometrics of 185 specimens in lateral view. Partial sequences of the gene cytochrome c oxidase I were obtained for 129 specimens representing 11 species. Based on the consistent results retrieved from the morphologic and molecular analyses, we recognized six species of Centropomus from the Atlantic coast (C. ensiferus, C. irae, C. parallelus, C. pectinatus, C. poeyi and C. undecimalis). Centropomus mexicanus is treated as a junior synonym of C. parallelus. Six species from the Pacific coast are also tentatively recognized (C. armatus, C. medius, C. nigrescens, C. robalito, C. unionensis, and C. viridis), however further studies on the Pacific species are still needed. Information on type material, diagnosis, distribution, and taxonomic comments are provided for each species. An identification key to the species of Centropomus is presented.

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Host and geographic distribution of Skrjabinoclava spp. (Nematoda: Acuarioidea) in Nearctic shorebirds (Aves: Charadriiformes), and evidence for transmission in marine habitats in staging and wintering areas

Canadian Journal of Zoology ◽

10.1139/z90-355 ◽

1990 ◽

Vol 68 (12) ◽

pp. 2539-2552 ◽

Cited By ~ 8

Author(s):

P. L. Wong ◽

R. C. Anderson

Keyword(s):

Gulf Of Mexico ◽

Pacific Coast ◽

The United States ◽

Larval Stages ◽

Marine Habitats ◽

The Pacific ◽

Southern Alberta ◽

Wintering Areas ◽

Charadrius Wilsonia ◽

Charadrius Semipalmatus

Twelve species of shorebirds belonging to the families Charadriidae (N = 3) and Scolopacidae (N = 9) were infected with 11 species of Skrjabinoclava and there was little overlap of parasites between these two families of birds. Most Skrjabinoclava spp. are transmitted apparently in marine staging and (or) wintering areas of their hosts, as indicated by the presence of larval stages of six species. There was no evidence that transmission occurs on the breeding grounds in freshwater habitats. Skrjabinoclava tupacincai, found predominantly in sanderlings (Calidris alba (Pallas)), is transmitted on the Pacific (Washington, California, Chile) and Atlantic coasts (New Jersey) in winter and the Gulf of Mexico (Florida and Texas) in winter and spring. Skrjabinoclava myersi was found, with a single exception, only in sanderlings, and transmission is apparently restricted to coastal Washington and California in winter. Skrjabinoclava bakeri, found predominantly in western sandpipers (Calidris mauri Cabanis), is transmitted on the Pacific coast (California) and in the Gulf of Mexico in winter. Skrjabinoclava morrisoni and Skrjabinoclava pusillae were found mainly in semipalmated sandpipers (Calidrispusilla (L.)). Both parasites are transmitted in the Gulf of Mexico in spring, but S. morrisoni is also transmitted in the Bay of Fundy in fall. Skrjabinoclava inornatae, found mainly in willets (Catoptrophorus semipalmatus (Gmelin)), is transmitted in Louisiana, Texas, and Peru in winter. Skrjabinoclava kritscheri was found only in marbled godwits (Limosafedoa (L.)), and it is suggested that infected birds collected in southern Alberta in spring acquired their infections while wintering along the Pacific coast of the United States. Skrjabinoclava hartwichi, found in black turnstones (Arenaria melanocephala (Vigors)) wintering in California and ruddy turnstones (Arenaria interpres (L.)) wintering in Peru, is transmitted along the Pacific coast of North America. Skrjabinoclava semipalmatae was found in semipalmated plovers (Charadrius semipalmatus Bonaparte) wintering in California. Skrjabinoclava wilsoniae was found in Wilson's plover (Charadrius wilsonia Ord) wintering in Texas and in a black-bellied plover (Pluvialis squatarola (L.)) migrating through southern Alberta in spring. Skrjabinoclava bartlettae was found in black-bellied plovers collected in southern Alberta in spring and Louisiana in winter.

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First record and geographic range extension of the coccolithophore Scyphosphaera apsteinii Lohman, 1902 (Haptophyta: Pontosphaeraceae) from the Pacific coast of Mexico

Check List ◽

10.15560/11.5.1754 ◽

2015 ◽

Vol 11 (5) ◽

pp. 1754 ◽

Cited By ~ 1

Author(s):

Francisco O. López-Fuerte ◽

Ismael Gárate-Lizárraga ◽

David A. Siqueiros-Beltrones ◽

Ricardo Yabur

Keyword(s):

Gulf Of Mexico ◽

Type Species ◽

Pacific Coast ◽

First Record ◽

Geographic Range ◽

Central Pacific ◽

The West ◽

The Pacific ◽

The Caribbean ◽

First Time

The coccolithophorid Scyphosphaera apsteinii is here reported for the first time from waters off the west coast of the Baja California Peninsula. Scyphosphaera apsteinii is the type species of the genus Scyphosphaera and had hitherto been recorded only in the Atlantic and Indian Oceans, the Gulf of Mexico, the Mediterranean, and the Caribbean Seas. Specimens were found in samples collected in nets off Isla de Guadalupe in January 2013. This recording thus extends the geographical distribution of S. apsteinii from the Central Pacific (Hawaii) to the Eastern Pacific (NW Mexico).

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DESMODORIDAE (NEMATODA) MIT EXTREM LANGEN SPICULA AUS SUDAMÉRICA

Bulletin of Marine and Coastal Research ◽

10.25268/bimc.invemar.1976.8.0.535 ◽

2016 ◽

Vol 8 ◽

Author(s):

Sievert Lorenzen

Keyword(s):

Pacific Coast ◽

Atlantic Coast ◽

Marine Nematodes ◽

Southern Chile ◽

Bundesrepublik Deutschland ◽

The Pacific ◽

The Family ◽

De Man

1. It is discussed that in five from the six orders of freeliving marine nematodes there are species with extraordinary long spicula. These species live in mud, sand and between algae. Extraordinary long spicula are slender, have with very few exceptions the form of an elongated comma and are accompanied by a 1) Die Arbeit wurde gefordert durch Exkursionsbeihilfen von „ORPLANLos Canales" (Chile) zur Küste Patagoniens und durch eine Reisebeihilfe der Deutschen Forschungsgemeinschaft (Bundesrepublik Deutschland) nach Kolumbien. In Kolumbien konnte ich am Instituto Colombo-Alemán in Santa Marta arbeiten. Allen drei Institutionen sei herzlich gedankt. slender gubernaculum without apophysis. In the respectives females the sexual organs are built normally as in other species in which the males possess normal spicula (1 exception). 2. 4 species belonging to the family Desmodoridae are described: Microlaimus acicularis n. sp., Molgolaimus tenuispiculum Ditlevsen 1921 (both to Microlaiminae), Desmodora (Desmodora) filispiculum n. sp. and D.(D.) sinuata n. sp. (both to Desmodorinae). The three first mentioned species are collected from the Pacific coast of Southern Chile, the last mentioned one from the Atlantic coast of Colombia.3. The spicula of Molgolaimus tenuispiculum and Desmodora sinuata are not only very elongated but furthermore of a very outstanding form.4. Within the genus Desmodora de Man 1889 the subgenus Desmodorella Cobb 1933 is supposed to be synonym to the subgenus Desmodora. 5. Similarities which exist between Desmodora, the epsilonematids and draconematids are discussed.

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

Zootaxa ◽

10.11646/zootaxa.2343.1.6 ◽

2010 ◽

Vol 2343 (1) ◽

pp. 66 ◽

Cited By ~ 6

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.

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Climate and the distribution of C4 grasses along the Atlantic and Pacific coasts of North America

Canadian Journal of Botany ◽

10.1139/b01-026 ◽

2001 ◽

Vol 79 (4) ◽

pp. 474-486 ◽

Cited By ~ 7

Author(s):

Cindy SM Wan ◽

Rowan F Sage

Keyword(s):

North America ◽

Minimum Temperature ◽

Malic Enzyme ◽

Pacific Coast ◽

Atlantic Coast ◽

Annual Precipitation ◽

Grass Species ◽

Mean Annual Precipitation ◽

Exotic Grasses ◽

The Pacific

In this study, relationships between temperature, precipitation, and the percentage of C4 grasses in local grass floras from the Atlantic and Pacific coastal regions of North America were examined. The proportion of C4 species in a local grass flora increased as latitude decreased on both coasts. At a given latitude, the C4 percentage on the Atlantic coast was higher than the Pacific coast. This difference was related to the Atlantic coast having greater July minimum temperatures than Pacific coast locations of similar latitude. Linear regression analysis showed that the proportion of C4 species in a local flora was positively associated with July minimum temperature on both coasts. The regression line between July minimum temperature and C4 representation was similar for each coast, indicating growth-season temperature has a similar control over C4 presence on the two coasts. Proportionally more of the annual precipitation fell in midsummer on the Atlantic than the Pacific coast, but this difference in the seasonal occurrence of precipitation did not alter the relationship between July minimum temperature and the contribution of C4 grass species to local floras. The Atlantic coast locations with the most precipitation had the highest C4 grass occurrence, indicating aridity alone did not increase the C4 representation in a grass flora. On both coasts, the proportion of NADP-malic enzyme C4 species in local C4 grass floras was positively correlated with mean annual precipitation; however, at equivalent percentages of NADP-malic enzyme subtype occurrence, precipitation levels were substantially lower on the Pacific than Atlantic coast. The trend between latitude and the percentage of C4 species in exotic grass floras was similar to the trend between latitude and the percentage of all C4 grasses in an entire grass flora. Thus, the C4 pathway appears to play no obvious role in enhancing the invasibility of exotic grasses in North America.Key words: bioinvasions, biogeography, C4 photosynthesis, C4 subtype, Poaceae, photosynthesis.

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Crustal structure variations in south-central Mexico from receiver functions

Geophysical Journal International ◽

10.1093/gji/ggz434 ◽

2019 ◽

Vol 219 (3) ◽

pp. 2174-2186

Author(s):

Miguel Rodríguez-Domínguez ◽

Xyoli Pérez-Campos ◽

Conrado Montealegre-Cázares ◽

Robert W Clayton ◽

Enrique Cabral-Cano

Keyword(s):

Gulf Of Mexico ◽

Pacific Coast ◽

Broad Band ◽

Crustal Thickness ◽

Receiver Functions ◽

Central Mexico ◽

Intrinsic Mode Functions ◽

S Wave ◽

South Central ◽

The Pacific

Summary Mexico has a complex geological history that is typified by the distinctive terranes that are found in the south-central region. Crustal thickness variations often correlate with geological terranes that have been altered by several processes in the past, for example aerial or subduction erosion, underplating volcanic material or rifting but few geophysical studies have locally imaged the entire continental crust in Mexico. In this paper, the thickness of three layers of the crust in south-central Mexico is determined. To do this, we use P- and S-wave receiver functions (RF) from 159 seismological broad-band stations. Thanks to its adaptive nature, we use an empirical mode decomposition (EMD) algorithm to reconstruct the RFs into intrinsic mode functions (IMF) in order to enhance the pulses related to internal discontinuities within the crust. To inspect possible lateral variations, the RFs are grouped into quadrants of 90°, and their amplitudes are mapped into the thickness assuming a three-layer model. Using this approach, we identify a shallow sedimentary layer with a thickness in the range of 1–4 km. The upper-crust was estimated to be of a few kilometers (<10 km) thick near the Pacific coast, and thicker, approximately 15 km in central Oaxaca and under the Trans-Mexican Volcanic Belt (TMVB). Close to the Pacific coast, we infer a thin crust of approximately 16 ± 0.9 km, while in central Oaxaca and beneath the TMVB, we observe a thicker crust ranging between 30 and 50 km ± 2.0 km. We observe a crustal thinning, of approximately 6 km, from central Oaxaca (37 ± 1.9 km) towards the Gulf of Mexico, under the Veracruz Basin, where we estimate a crustal thickness of 31.6 ± 1.9 km. The boundary between the upper and lower crust in comparison with the surface of the Moho do not show significant variations other than the depth difference. We observe small crustal variations across the different terranes on the study area, with the thinnest crust located at the Pacific coast and Gulf of Mexico coast. The thickest crust is estimated to be in central Oaxaca and beneath the TMVB.

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Insights into migratory connectivity and conservation concerns of Red Knots Calidris canutus in the austral Pacific coast of the Americas

Bird Conservation International ◽

10.1017/s0959270921000095 ◽

2021 ◽

pp. 1-9

Author(s):

CAMILA GHERARDI-FUENTES ◽

JORGE RUIZ ◽

JUAN G. NAVEDO

Keyword(s):

Pacific Coast ◽

Atlantic Coast ◽

Migratory Connectivity ◽

Migratory Species ◽

Essential Information ◽

Calidris Canutus ◽

The North ◽

Migratory Shorebirds ◽

Daily Rate ◽

The Pacific

Summary Migratory species rely on several distant sites during the annual cycle which makes their conservation more complex than that of non-migratory species. Even one of the most extensively studied migratory shorebirds - the Red Knot Calidris canutus - is currently ‘Near Threatened’ at the global level. Conflicting observations of migratory routes cast uncertainty on the subspecies classification and migratory connectivity of Red Knots in the Pacific coasts of the Americas. To fill essential information gaps, we present the first detailed population morphometrics of Red Knots during the non-breeding season in the southern Pacific coast, along with resightings of these birds throughout the Americas. We also estimated daily rate of weight gain during fuelling based on body mass at captures and known departure dates. Resightings demonstrate reliance on staging areas in both the Mid-continental and Atlantic flyways during the northward migration, and additionally in the Pacific Flyway during southward migration. In addition to the strong connection with several areas also used by C. c. rufa on the North American Atlantic coast, our results show morphometric differences within the ranges of both C. c. rufa and C. c. roselaari. Given the threats faced by Red Knots, the population in Chiloé Archipelago should be treated as a separate conservation unit within interhemispheric conservation programmes for endangered shorebirds within the Americas.

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Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama

Zootaxa ◽

10.11646/zootaxa.4564.2.9 ◽

2019 ◽

Vol 4564 (2) ◽

pp. 491

Author(s):

ROSANA M. ROCHA ◽

BAILEY KEEGAN COUNTS

Keyword(s):

New Species ◽

Pacific Coast ◽

Atlantic Coast ◽

The Pacific ◽

Two New Species

Recent efforts have been taken to survey and describe the ascidian fauna of the Pacific and Atlantic coasts of Panama; however, the genus Pyura still remains poorly known. Sampling events have been occurring since 2003. In this research, we describe two new species from the Atlantic coast of Panama: P. longispina sp. nov., P. lopezlegentilae sp. nov., and two new species from the Pacific Coast of Panama: P. carmanae sp. nov. and P. imesa sp. nov. We also supply a tabular key for all the Pyura species found in Panama.

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