Academic literature on the topic 'South Island (N.Z.)'

The Aderidae (Coleoptera: Tenebrionoidea) of New Zeland are revised to include four genera and fourteen species. Three genera are described as new: one distributed throughout the Australasian region (Zenascus gen. n.) one endemic to the north and south islands of New Zealand (Transrenus gen. n.), and one that is endemic to the south island of New Zealand (Pseudozena gen. n.). Six species are also newly described (Pseudozena denticulata sp. n., Transrenus thulater sp. n., Zenascus roberti sp. n., Z. incensum sp. n., Z. elenae sp. n., Z. aurum sp. n.). All previously described New Zealand species of aderids contained in the preoccupied genus Xylophilus are transferred to the newly erected genus Zenascus, resulting in six new combinations (Z. antennalis (Broun), comb. n.; Z. coloratus (Broun), comb. n.; Z. luniger (Champion), comb. n.; Z. nitidus (Broun), comb. n.; Z. obscurus (Broun), comb. n.; Z. xenarthrus (Broun, 1910: 54), comb. n.). Holotype and lectotype designations are made or verified for all previously described species. The New Zealand species Xylophilus pictipes Broun is synonymized with Zenascus obscurus, syn. n. and Scraptogetus nigricans is synonymized with Scraptogetus anthracinus, syn. n. The Australian genus Pseudananca Blackburn 1893 is synonymized with the New Zealand genus Scraptogetus Broun, syn. n. Keys to the genera and species are included. Phenotypic characters previously employed in the higher classification of the Aderidae, including secondary sexually dimorphic characters, are discussed and a phylogenetic analysis for the ten New Zealand species of Zenascus is performed to reconstruct trait evolution in males, which display extreme dimorphic antennomere modifications.

A leaf curling disease was observed on 7% of tobacco plants during December 2005 in research plots in the Cangshan District of Fuzhou, Fujian, China. Tobacco plants were infested with Bemisia tabaci, suggesting begomovirus etiology. To identify possible begomoviruses, total DNA was extracted from four symptomatic leaf samples (F1, F2, F3, and F4). The degenerate primers PA and PB were used to amplify part of the intergenic region and AV2 gene of DNA-A-like molecules (3). A 500-bp DNA fragment was amplified by PCR from all four samples. The PCR products were cloned and sequenced (GenBank Accession Nos. EF531601–EF531603 and EF527823). Alignment of the 500-bp sequences for the four isolates indicated that they shared 98.5 to 99.6% nt identity, suggesting that the plants were all infected by the same virus. Overlapping primers TV-Full-F (5′-GGATCCTCTTTTGAACGAGTTTCC-3′) and TV-Full-R (5′-GGATCCCACATGTTTAAAATAATAC-3′) were then designed to amplify the full-length DNA-A from sample F2. The sequence was 2,754 nucleotides long (GenBank Accession No. EF527823). A comparison with other begomoviruses indicated the F2 DNA-A had the highest nucleotide sequence identity (95.7%) with Ageratum yellow vein virus (AYVV; GenBank Accession No. X74516) from Singapore. To further test whether DNAβ was associated with the four viral isolates, a universal DNAβ primer pair (beta 01 and beta 02) was used (4). An amplicon of approximately 1.3 kb was obtained from all samples. The DNAβ molecule from F2 was then cloned and sequenced. F2 DNAβ was 1,345 nucleotides long (GenBank Accession No. EF527824), sharing the highest nucleotide sequence identity with the DNAβ of Tomato leaf curl virus (97.2%) from Taiwan (GenBank Accession No. AJ542495) and AYVV (88.8%) from Singapore (GenBank Accession No. AJ252072). The disease agent was transmitted to Nicotiana tabacum, N. glutinosa, Ageratum conyzoides, Oxalis corymbosa, and Phyllanthus urinaria plants by whiteflies (B. tabaci) when field infected virus isolate F2 was used as inoculum. In N. tabacum and N. glutinosa plants, yellow vein symptoms were initially observed in young leaves. However, these symptoms disappeared later during infection and vein swelling and downward leaf curling symptoms in N. tabacum and vein swelling and upward leaf curling in N. glutinosa were observed. In A. conyzoides, O. corymbosa, and P. urinaria plants, typical yellow vein symptoms were observed. The presence of the virus and DNAβ in symptomatic plants was verified by PCR with primer pairs TV-Full-F/TV-Full-R and beta 01/beta 02, respectively. The above sequence and whitefly transmission results confirmed that the tobacco samples were infected by AYVV. In China, Tobacco leaf curl Yunnan virus, Tobacco curly shoot virus, and Tomato yellow leaf curl China virus were reported to be associated with tobacco leaf curl disease (1,3). To our knowledge, this is the first report of AYVV infecting tobacco in China. A. conyzoides is a widely distributed weed in south China and AYVV was reported in A. conyzoides in Hainan Island, China (2). Therefore, this virus may pose a serious threat to tobacco production in south China. References: (1) Z. Li et al. Phytopathology 95:902, 2005. (2) Q. Xiong et al. Phytopathology 97:405, 2007. (3) X. Zhou et al. Arch. Virol. 146:1599, 2001. (4) X. Zhou et al. J. Gen. Virol. 84:237, 2003.

Based upon external features of adults of the genus Zeanillus ten species are recognized, seven of which are new to science. Because of significant morphological differences, all species are arranged in four subgenera: the nominotypical subgenus Zeanillus, including Z. phyllobius (Broun), Z. punctigerus (Broun), and Z. nunni, new species (New Zealand, South Island, Otago, Trotters George); the monobasic subgenus Brounanillus, new subgenus, including Z. pallidus (Broun); the monobasic subgenus Nunnanillus, new subgenus, including Z. pellucidus, new species (New Zealand, South Island, Otago, Oamaru); and the most species-rich subgenus Otagonillus, new subgenus, including Z. brouni, new species (New Zealand, South Island, Otago, Oamaru), Z. lescheni, new species (New Zealand, South Island, Southland, Waikaia Forest), Z. carltoni, new species (New Zealand, South Island, Otago, Mount Watkin), Z. montivagus, new species (New Zealand, South Island, Otago, North Rough Ridge), and Z. nanus, new species (New Zealand, South Island, Otago, Waipori River Valley). Based on new morphological data, a redescription of genus, redescriptions of previously described species, and descriptions of all new taxa are given and a taxonomic key for all known species is provided. Maps of species distributions and illustrations of main taxonomic characters used in the text are also included. Some biogeographic/evolutionary aspects of Zeanillus origin and diversification are discussed.

Members of the genus Nerita are abundant components of the intertidal fauna in many parts of the world and yet Nerita taxonomy remains unsettled. Here, the relationships among black-shelled Nerita populations from Australia, New Zealand, Norfolk Island, Lord Howe Island, the Kermadec Islands and Easter Island are discussed. Four species are recognised: N. atramentosa Reeve, 1855 from the southern half of Australia; N. melanotragus E.A. Smith, 1884 from eastern Australia, northern New Zealand, Lord Howe Island, Norfolk Island and the Kermadec Islands; N. morio (G. B. Sowerby I, 1833) from Easter Island and the Austral Islands; and N. lirellata Rehder, 1980 from Easter Island alone. These species are of great importance in studies of intertidal community structure and yet two of them have been consistently confused in the ecological and taxonomic literature. Moreover, the relationships among the species are not at all as implied by recent subgeneric classifications; it is argued that all four species should be placed in the subgenus Lisanerita Krijnen, 2002. The superficially similar N. picea Récluz, 1841 is not closely related. An accurate taxonomy of the genus will almost certainly require considerable genetic analysis. The nomenclature for each species is herein established by complete synonymies, and lectotypes for both N. atramentosa and N. melanotragus are selected.

Species of flightless litter ground beetles of the tribe Anillini, genus Nesamblyops, from the North Island and from the north-eastern part of the South Island are revised. Eight new species are described and one previously known species, Nesamblyops oreobius (Broun), is re-described. Nesamblyops oreobius, the only hitherto recorded species from the North Island, is most similar to the group of two new species from the South Island, N. confusus n. sp. (type locality: New Zealand, Marlborough Sounds, Mount Stokes) and N. lescheni n. sp. (type locality: New Zealand, Marlborough Sounds, D’Urville Island), based on the structure of the male genitalia. The second species of the genus known from the North Island, N. tararua n. sp. (type locality: New Zealand, Wellington, Tararua Range) represents another lineage, based on the structure of the male genitalia, and is closely related to a group of three new species from the South Island, N. brouni n. sp. (type locality: New Zealand, Canterbury, Southern Alps, Lewis Pass), N. distinctus n. sp. (type locality: New Zealand, Marlborough, Richmond Range, Fabians Valley), and N. townsendi n. sp. (type locality: New Zealand, Marlborough Sounds, Tennyson Inlet). Nesamblyops carltoni n. sp. (type locality: New Zealand, Nelson, Richmond Range, Dun Mountain) and N. parvulus n. sp. (type locality: New Zealand, Marlborough Sounds, Mount Stokes), both from the South Island occupy an isolated position among the examined species. All species are illustrated with digital images of habitus, body parts, and drawings of genitalia. Distribution maps for all species are also provided. Geographical evidence of Nesamblyops dispersal to the North Island is discussed, based on distributional data.

Climate change poses severe threats to developing countries. Scientists predict entire states (e.g. Kiribati, Marshall Islands, Tuvalu, and Maldives) will become inhabitable. People living in these states have to resettle to other countries. Media and politicians warn that climate change will trigger migration flows in dimensions unknown to date. It is feared that millions from developing countries overwhelm developed societies and increase pressures on anyway ailing social support systems destabilizing societies and becoming a potential source of conflict.Inhabitants of Pacific Islandsahave been mobile since the islands were first settled not longer than 3,500 years ago. Since then people moved around, expanded their reach, and traded with neighbouring tribes (and later countries). With the event of European powers in the 15thcentury independent mobility became restricted after the beginning of the 19thcentury. From the second half of the 19thcentury movements of people predominately served economic interests of colonial powers, in particular a huge colonial appetite for labour. After independence emigration from Pacific Island countries continued to serve economic interest of metropolitan countries at the rim of the Pacific Ocean, which are able to direct migration flows according to their economic requirements.If climate change resettlements become necessary in big numbers then Pacific Islanders do not want to become climate change refugees. To include environmental reasons in refugee conventions is not what Pacific Islanders want. They want to migrate in dignity, if it becomes unavoidable to leave their homes. There are good reasons to solve the challenges within Pacific Island societies and do not depend too much on metropolitan neighbours at the rim of the Pacific such as Australia, New Zealand and the USA. To rise to the challenge requires enhanced Pan-Pacific Island solidarity and South-South cooperation. This then would result in a reduction of dependencies. For metropolitan powers still much can be done in supporting capacity building in Pacific Island countries and helping the economies to proposer so that climate change migrants easier can be absorbed by expanding labour markets in Pacific Island countries.

Eight species of brachyuran decapod crustaceans are recorded from coastal outcrops of Island Sandstone between Perpendicular Point and Punakaiki, Westland, New Zealand. The fauna consists of three raninids—Laeviranina pororariensis (Glaessner), L. keyesi n. sp., Lyreidus bennetti n. sp.; two portunids—Rhachiosoma granuliferum (Glaessner), Pororaria eocenica Glaessner; a goneplacid—Carcinoplax temikoensis n. sp.; and two majids—Leptomithrax griffini n. sp., Notomithrax allani n. sp. Together, they form the most diverse brachyuran assemblage yet described from New Zealand. The decapods are preserved in unusual elliptical masses, with their long axes typically parallel to bedding, containing superbly preserved cuticle often surrounded by well-formed fecal pellets, probably of decapod origin. The accumulations are interpreted to be mechanical concentrations within depressions produced by decapods or associated spatangoid echinoids. Although seven of the species have been recorded only from the Island Sandstone, Rhachiosoma granuliferum (Glaessner) is now known to occur in the correlative deep-water facies of the Kaiata Formation in North Westland, as well as in the Tapui Sandstone, North Otago (middle Eocene), and from coeval rocks at Snowdrift Quarry, southeast Otago. The raninids suggest comparison with congeneric forms from Snowdrift Quarry and the Tapui Sandstone, as well as with the La Meseta Formation, Seymour Island, Antarctica. Based upon associated foraminiferans, a Kaiatan–Runangan (late Eocene) age is assigned to this fauna. The occurrences of Carcinoplax, Leptomithrax, and Notomithrax represent paleobiogeographic and stratigraphic records for the genera.

Study of petrological and geochemical characteristics of mantle peridotite xenoliths in Pliocene alkaline basalt in Nghia Dan (West Nghe An) was carried out. Rock-forming clinopyroxenes, the major trace element containers, were separated from the xenoliths to analyze for major, trace element and Sr-Nd isotopic compositions. The data were interpreted for source geochemical characteristics and geodynamic processes of the lithospheric mantle beneath the region. The peridotite xenoliths being mostly spinel-lherzolites in composition, are residual entities having been produced following partial melting events of ultramafic rocks in the asthenosphere. They are depleted in trace element abundance and Sr-Nd isotopic composition. Some are even more depleted as compared to mid-ocean ridge mantle xenoliths. Modelled calculation based on trace element abundances and their corresponding solid/liquid distribution coefficients showed that the Nghia Dan mantle xenoliths may be produced of melting degrees from 8 to 12%. Applying various methods for two-pyroxene temperature- pressure estimates, the Nghia Dan mantle xenoliths show ranges of crystallization temperature and pressure, respectively, of 1010-1044°C and 13-14.2 kbar, roughly about 43km. A geotherm constructed for the mantle xenoliths showed a higher geothermal gradient as compared to that of in the western Highlands (Vietnam) and a conductive model, implying a thermal perturbation under the region. The calculated Sm-Nd model ages for the clinopyroxenes yielded 127 and 122 Ma. 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Abstract The species within the Tribe Dacini from Papua New Guinea, Indonesian Papua (West Papua, Central Papua, Papua), associated islands and Bougainville are recorded. In all, 296 species are recorded including 65 new species described herein. The new species are treated under two genera, Bactrocera Macquart (eight subgenera) and Dacus Fabricius (three subgenera). The following new species are described and illustrated: Bactrocera (Bactrocera) atriscuta, B. (B.) bisianumu, B. (B.) bogiae, B. (B.) bubiae, B. (B.) bukaensis, B. (B.) caccabata, B. (B.) centraliae, B (B.) dysoxyli, B. (B.) expandosa, B. (B.) fumica, B. (B.) gabensiae, B. (B.) kaiauiae, B. (B.) kauiae, B. (B.) keravatiae, B. (B.) kokodiae, B. (B.) kunvawaensis, B. (B.) labubulu, B. (B.) laensis, B. (B.) manusiae, B. (B.) meraiensis, B. (B.) monostriata, B. (B.) neoabdonigella, B. (B.) neoaeroginosa, B. (B.) ohuiae, B. (B.) paraendiandrae, B. (B.) paraochracea, B. (B.) pometiae, B. (B.) raunsepnaensis, B. (B.) rounaensis, B (B.) rutilana, B. (B.) saramandiae, B. (B.) sari, B. (B.) sylvania, B. (B.) tikelingiae, B. (B.) trivirgulata, B. (B.) waidoriae, B. (B.) yayamiae, Bactrocera (Bulladacus) curiosa, Bactrocera (Calodacus) insolita, Bactrocera (Hemizeugodacus) neoaglaiae, B. (H.) wilhelmiae, Bactrocera (Neozeugodacus) leblanci, Bactrocera (Semicallantra) cerberae, B. (S.) malasaitiae, Bactrocera (Tetradacus) arbuscula, B. (T.) novotnyi, B. (T.) procera, Bactrocera (Zeugodacus) aiyurae, B. (Z.) anglimpiae, B. (Z.) bainingsiae, B. (Z.) madangiae, B. (Z.) magiae, B. (Z.) mitparingii, B. (Z.) oiyaripensis, B. (Z.) parasepikae, B. (Z.) rufoscutella, B. (Z.) xanthovelata, Dacus (Callantra) nigrolobus, D. (Mellesis) alatifuscatus, Dacus (Neodacus) asteriscus, D. (N.) bimaculosus, D. (N.) curvabilis, D. (N.) kreeriae, D. (N.) lalokiae and D. (N.) neosignatifrons. Females of B. (Bactrocera) daruensis Drew, B. (Bactrocera) nigella (Drew) and B. (Bactrocera) thistletoni Drew are described and a revised description of B. (Bactrocera) torresiae Huxham & Hancock is presented. Bactrocera (Bactrocera) denigrata (Drew) is withdrawn from synonymy with B. longicornis Macquart, and a full description of B. longicornis is presented from a study of the holotype and 27 newly collected specimens. New geographical distribution, host plant and male lure records are presented for some species. The major pest species that occur in the geographical region covered by this publication are reviewed and their biosecurity risks to other regional countries discussed. The land mass of Papua New Guinea and Indonesian Papua contains a richer fauna than any other from South-east Asia to the eastern Pacific, presumably resulting from speciation in the rich rainforest ecosystem. Differences of opinion on the status of some species in the Bactrocera dorsalis complex and on the supraspecific classification within the genus Bactrocera are evident in the literature. We have acknowledged and discussed these differences and, as authors, have presented conclusions based on our own research data.

Abstract The Antarctic Peninsula is an island arc flanked by a deep ocean trench. Volcanism is active in the Bransfield Strait, a back-arc basin. The arc is a continuation of the Andes, broken by the Drake Passage. Lying north of the Antarctic Circle, the peninsula is the warmest part of the continent, largely because it is bathed by warm winds from the north that circulate around the Amundsen Sea low pressure center. In 1950–2000 the peninsula warmed by c.2.5°C (4.5°F). It cooled slightly in 2000–2014, when local winds turned easterly, but is now warming again. Glaciers are shrinking and sea ice is disappearing down the west coast; ice shelves are disappearing down the east coast. Where sea ice disappeared, Adélie penguins declined; other species thrived, including Elephant and Weddell seals. Easterly winds blow icebergs into the Southern Ocean through Iceberg Alley along the peninsula’s east coast, but icebergs are rare on its west coast north of 65°N.

Abstract This chapter describes the POBSP scientists, their duties, and the conditions under which they worked. The chapter introduces the four major characters who were the most prominent members of the field teams that actually performed the survey: A. Binion Amerson, entomologist, Roger Clapp, ornithologist, Fred C. Sibley, ornithologist, and Lawrence N. Huber, herpetologist. It describes in vivid detail a few of the Southern Island Cruises to places such as Howland Island and Baker Island in the North Pacific, and Jarvis Island in the South. It describes what these men actually did and presents a detailed picture of what it was like to travel from place to place aboard both army and navy oceangoing tugboats, as well as other vessels, and then to land on an island and perform a full biological survey and census of its life forms.

<em>Abstract.</em>—The Charleston Bump is a complex bottom feature of great topographic relief located southeast of Charleston, South Carolina. This bottom feature deflects the Gulf Stream offshore in the South Atlantic Bight, and establishes permanent and temporary eddies, gyres, and associated upwellings in the warm Gulf Stream flow. Thermal fronts associated with Gulf Stream deflection, and die bottom feature itself, are believed to be attractive to large pelagic fishes, or result in concentrations of larvae, juveniles, and prey for larger fish. Upwelling in the region supports early life history stages of important fishery species. Deflection of the Gulf Stream may also play a direct or indirect role in transport of early life stages toward, or away from, nursery areas. Sea surface temperatures (SSTs) influenced by the Gulf Stream response to the Charleston Bump appear to have a role in determining recruitment success in gag <em> Mycteroperca microlepis, </em>a continental shelf reef fish. Relative cohort strength in gag was correlated (r = 0.89) to SST at 33°30'N, 78°30' W. Variability in conditions mat affect recruitment of larvae and juveniles, combined with heavy fishing pressure on prespawning adults, may result in recruitment failure in gag. In addition to strongly influencing circulation patterns in the South Atlantic Bight, die rugged bottom topography of the Bump is an important habitat and spawning ground for wreckfish <em> Polyprion americanus </em>and supports die U.S. fishery for this species. As a result, die Bump is an essential habitat for this species in U.S. waters. A geographic analysis of commercial pelagic longline logbook data shows mat die Charleston Bump is an area of concentrated commercial fishing effort, and that pelagic longline fisheries also concentrate along fronts at die edges of Gulf Stream gyres and eddies downstream. The "Charleston Bump Complex" of rough bottom topography and dynamic oceanography is an essential habitat for wreckfish and highly migratory pelagic fishes, and may influence recruitment success in some continental shelf fishes.

The nature of the relationships between physical and biological processes in the ocean is subtle and complex. Not only do the physical phenomena create a structure, such as a shallow, mixed layer or a front, within which biological processes may proceed, but they also influence the rates of biological processes in many indirect ways. In the ocean, physical phenomena control the distribution of nutrients necessary for phytoplankton photosynthesis. Places with higher kinetic energy have higher concentrations of planktonic organisms, and that makes the whole food web richer (Mann and Lazier 1996). For example, in the midriff region of the Sea of Cortés (Tiburón and Ángel de la Guarda; fig. 1.2), tidal currents are strong, and intense mixing occurs, creating a situation similar to constant upwelling. Thus, primary productivity is high, and this area supports large numbers of sea birds and marine mammals (Maluf 1983). The Gulf of California is a dynamic marginal sea of the Pacific Ocean and has been described as an area of great fertility since the time of early explorers. Gilbert and Allen (1943) described it as fabulously rich in marine life, with waters fairly teeming with multitudes of fish, and to maintain these large numbers, there must be correspondingly huge crops of their ultimate food, the phytoplankton. Topographically the gulf is divided into a series of basins and trenches, deepening to the south and separated from each other by transverse ridges (Shepard 1950; fig. 3.1). Input of nutrients into the gulf from rivers is low and has only local coastal effects. The Baja peninsula has only one, very small river, near 27°N; rivers in mainland Mexico and the Colorado River have dams that divert most of the water for agricultural and urban use. The gulf has three main natural fertilization mechanisms: wind-induced upwelling, tidal mixing, and thermohaline circulation. Upwelling occurs off the eastern coast with northwesterly winds (winter conditions from December through May) and off the Baja California coast with southeasterly winds (summer conditions from July through October), with June and November as transition periods (Álvarez-Borrego and Lara- Lara 1991).

The present study aims to propose the creation of an artificial beach in the municipality of Machico and its complementary infrastructures, located on the south-eastern coast of the Madeira Island (Portugal). Machico’s beach sand consists of a mixture of black volcanic sand and round basalt stones. Usually, it has clear waters and a quiet sea. This beach also has a mooring infrastructure, thus allowing access to the sea. In order to achieve this study’s main goals, it was initially carried out an extensive review and bibliographic research. Subsequently, a sand beach and its shelter groins were simulated and designed to hypothetically promote the retention of the sand and mitigate the tidal effects. In addition to model the beach dynamics, an extensive characterization of the extreme maritime regime was performed. The model was developed based on topographic and hydrographic site surveys and the data using Wave Watch III model at 32.0°N, 17.0°W—obtained from SONEL web page, which gathers new data every 6 hours. Besides, the study also contemplated the analysis of the sea inundation quota for a return period of 100 and 500 years and its development along with the Master Plan of the City of Machico. Furthermore, some final remarks and conclusions will be shown; besides, some future projects should be developed to expand the knowledge of this thematic field.

<em>Abstract.</em>—This study provides information regarding an open-ocean, nearshore nursery ground for the scalloped hammerhead <em>Sphyrna lewini </em>off the Atlantic coast of Florida near Cape Canaveral. Neonate scalloped hammerheads collected from this region ranged in size from 385 to 500 mm in total length (TL) and were observed during May and June, when water temperatures ranged from 26.1°C to 28.8°C. Although nearshore gill-net sampling during the study period encompassed the Florida Atlantic coastline from north of Cape Canaveral (latitude 28°40’N) south to the Jupiter Island area (latitude 27°04’N), neonate scalloped hammerheads were collected only in waters near the Cape Canaveral area. The nearshore waters near Cape Canaveral served as a nursery ground for scalloped hammerheads in 1994 and 1997. Extensive fisheries-independent gill-net sampling within the adjacent northern Indian River Lagoon system (Banana River Lagoon and Indian River Lagoon proper) did not collect scalloped hammerheads, indicating that this estuarine area does not serve as a nursery ground for this species. Other shark species collected in the overall study area included juvenile nurse sharks <em>Ginglymostoma cirratum </em>(620–1,219 mm TL); juvenile blacktip sharks <em>Carcharhinus limbatus </em>(630–885 mm TL); neonate, juvenile, and adult Atlantic sharpnose sharks <em>Rhizoprionodon terraenovae </em>(305–1,000 mm TL); juvenile and adult bonnethead <em>Sphyrna tiburo </em>(430–1,150 mm TL); and neonate and juvenile bull sharks <em>C. leucas </em>(754–1,460 mm TL). Human access to a portion of the open-ocean area near Cape Canaveral is currently prohibited due to security issues at the adjacent National Aeronautics and Space Administration’s Kennedy Space Center and Cape Canaveral Air Force Station. This area closure has inadvertently created a marine reserve by eliminating fishing pressure on and significantly reducing vessel- or shore-based human interaction with this nearshore habitat. The effects, if any, of this marine reserve on shark populations in the region are unknown, and studies regarding these and other aspects of shark abundance and distribution in the Cape Canaveral area are currently ongoing.

Ling Ding Yang (LDY) estuary is one of the main parts of the whole Zhujiang estuary, which lies in the south sea, China. It is about 60km wide from Hong Kong in the east to Macao in the west and the water areas are approximately 2110 km2. The mixing process of salt water and fresh water in the estuary is influenced by many factors, such as the estuarine geometry, tidal range and ravine flows, etc. In this paper, based on the data from the tidal gauge stations and synchronously surveyed data during July 2003, a study on the temporal and spatial distribution characteristics of salinity was made. According to the observation data, in wet season, the fresh water and salt water mixes with the N parameter between 0.21 and 1.63. The distribution of salinity concentration in the east part of LDY is due to coriolis’ force. The salinity concentration decreases from the sea to the estuary, and there exists apparent division point, Nei Lingding Island. To the south of Nei Lingding Island, it is almost partially mixed, and to the north of Nei Lingding Island, it belongs to highly stratification. At the same time, the stratification parameter and the vertical mean velocity in wet season are compared. The N parameter changes with the velocity of tide flow in a tidal cycle. The value of N in a flood tide is usually larger than that is in an ebb tide. That is to say, the mix intensity is much bigger in the flood tide.

Wave height, period and direction are basic parameters for designing off-shore structures. Besides this direct application, knowledge of the regional characteristics of a wave field can also help in the selection of optimal regions for wave power energy plant design and installation. A wave climatology based on data generated by a WAVEWATCH III model simulation (NOAA WW3) for the Brazilian coast was analyzed and validated against statistical values derived from opportunity vessel measurements. The hindcast covered the period from January 1997 to December 2005 in a region between 5°N – 40°S and 10°W – 65°W. The grid used was uniform with a 0.25° spacial resolution. The boundary conditions were obtained from NOAA WW3 operational model and the atmospheric forcing from NOAA GFS model. The model results were calibrated with field data and detailed information about the simulation can be obtained in Alves et al. (2008) and Alves et al. (in press). Monthly averages of significant height, period and wavelength were calculated using 3 hour time resolution fields. Since a simple mean direction has small physical representativeness, the predominant direction (moda) and associated persistency were obtained from the data. The results were then compared with values from the U.S. Navy Marine Climate Atlas of the World. This Atlas has four points located within the selected model grid region. These points showed good agreement with wave period, height and direction persistency based on the WW3 simulation results. The wave climatology showed that the predominant wave direction from April to July was from S and SE in southern Brazil, associated with swells related to cold fronts. The S and SE swells were also responsible for the largest mean wave height (2.1 m) observed in the climatology. Another result that was validated with the literature was the E and NE predominant wave direction during the austral summer. This phenomenon is associated with winds originated from the South Atlantic High Pressure Center, which is a semi permanent high pressure center near Trindade Island. The wave climate in northern Brazil showed a predominant direction from the N during January to March, associated with the northern hemisphere winter storms. During the remaining months of the year, the predominant wave direction is E and NE associated with trade winds. The model results are still in a processing phase to produce extreme values, which will be more useful for coastal and off-shore structure design.

Invasive zebra mussels (Dreissena polymorpha) were first observed in situ at Apostle Islands National Lakeshore (APIS) in 2015. This report builds on 2018 SCUBA surveys and Environmental Protection Agency (EPA) veliger sampling to: 1) determine whether shoals on APIS borders act as sentinel sites to corroborate veliger drift hypotheses about invasion pathways, 2) evaluate ongoing hand-removal of zebra mussels from easily identified structures, and 3) continue efforts to assess native unionid mussel populations, particularly where zebra mussels are also present. Standard catch per unit effort survey methods by SCUBA teams were used to determine the distribution and relative abundance of zebra or quagga mussels (dreissenids) and native mussels (unionids). Zebra mussels were present at densities between 3 and 42 n/diver/hr (number of mussels per diver per hour), while native unionids were present at densities between 5 and 72 n/diver/hr. Shoal surveys (Eagle Island shoal, Sand Island shoal, York Island shoal, Bear Island shoal, Oak Island shoal, and Gull Island shoal) showed zebra mussels were more abundant on the west side of APIS and absent on the easternmost shoal (Gull Island), corroborating veliger work by the EPA that suggested drift from the Twin Ports of Duluth, Minnesota, and Superior, Wisconsin, is one pathway of invasion. Our results support the use of shallow shoals along the periphery of the park as sentinel sites gauging zebra mussel immigration and population dynamics. Zebra mussel densities in the central islands showed no obvious spatial pattern, and this survey cannot determine whether currents or human transport (or both) are invasion vectors. Given the mussels’ continued presence at heavily used mooring areas and docks where there are no zebra mussels on nearby natural features (e.g., Rocky Island dock, Stockton Island mooring areas), our findings are consistent with multiple invasion pathways (drift from the Twin Ports and anthropogenic sources at mooring areas). SCUBA search and removal of zebra mussels from docks was confirmed to be an effective method for significantly lowering the risk of zebra mussels reproducing and dispersing from these locations. We caution that this work is being done on what look like initial invasions at low densities. Repeated removal of zebra mussels by divers reduced numbers to zero at some sites after one year (South Twin docks, Stockton Island NPS docks, and the Ottawa wreck) or decreased numbers by an order of magnitude (Rocky Island docks). Dreissenid densities were more persistent on the Sevona wreck and longer-term work is required to evaluate removal versus recruitment (local and/or veliger drift). Given the size of the wreck, we have tracked detailed survey maps to guide future efforts. Zebra mussels were again observed attached to native mussels near Stockton Island and South Twin Island. Their continued presence on sensitive native species is of concern. Native unionid mussels were more widely distributed in the park than previously known, with new beds found near Oak and Basswood Islands. The work reported here will form the basis for continued efforts to determine the optimal frequency of zebra mussel removal for effective control, as well as evaluate impacts on native species.

The Boothia Peninsula - Somerset Island region of north-central Nunavut is a frontier region (70-74°N, 94°W) long considered as part of Rae craton. Recent field mapping and acquisition of isotopic (U-Pb, Sm-Nd) data as part of the GEM-2 Boothia-Somerset project allowed this region's exposed Precambrian bedrock to be better characterized with respect to petrology and litho-geochemistry, and to be more extensively and more precisely time-calibrated. The discovery of unique, possibly exotic, basement characterized by a ca. 2.55-2.51 Ga TTG suite overlain by ca. 2.5 Ga metasedimentary rocks, cut by 2.49- 2.48 Ga plutons, are all atypical components of the Archean Rae crust. This new knowledge and the hint of similar 'Boothia terrane' crust south of Boothia Peninsula (Ryan et al., 2009), east of the Queen Maud block (Davis et al., 2014) in central Nunavut, and in northernmost Saskatchewan (Cloutier et al., 2021), raised the possibility this terrane may extend &amp;gt;1600 km across north-central Canada. During the foundational year of GEM-GeoNorth, the extent of Boothia terrane crust was explored through legacy samples collected during the 2012 GEM Frontiers' transect across mainland Nunavut. As part of this new study, field descriptions, photographic records and legacy samples were examined, and new U-Pb zircon geochronology was acquired. The new data and knowledge were used to: i) identify new components of Boothia terrane on the mainland southwest of Boothia Peninsula; ii) further distinguish this crust from that of Rae affinity; and iii) better constrain the depositional age of Sherman Group metasedimentary rocks.