Distribution of seabirds at sea in the Gulf of Carpentaria, Australia

1994 ◽  
Vol 45 (3) ◽  
pp. 445 ◽  
Author(s):  
SJM Blaber ◽  
DA Milton
Keyword(s):  
Food Availability ◽  
Coastal Waters ◽  
Common Tern ◽  
Terrestrial Species ◽  
Water Currents ◽  
The Common ◽  
Roseate Tern ◽  
Sooty Tern ◽  
North Western ◽  
Seabirds At Sea

The distribution and abundance of seabirds was documented at sea in the Gulf of Carpentaria in December 1990 and November 1991. Of the 17 species recorded, only the crested tern, least frigatebird, brown booby and streaked shearwater were widespread. The first three species were seen mainly in coastal waters; streaked shearwaters were seen only in the central north-western gulf. The common tern, roseate tern, little tern, sooty tern, black-naped tern, common noddy and greater frigatebird were either sparsely distributed or uncommon. The list includes five terrestrial species. The distribution of the seabirds is discussed in relation to proximity to breeding and roosting sites, food availability, the effects of discards from prawn trawling, and water currents.

Marine Quality Standards: Their Derivation and Application in the United Kingdom

1985 ◽  
Vol 17 (6-7) ◽  
pp. 1187-1198 ◽  
Author(s):  
G. Mance ◽  
A. R. O'Donnell
Keyword(s):  
Coastal Waters ◽  
Sublethal Effects ◽  
Quality Standards ◽  
Toxicity Data ◽  
Marine Life ◽  
Nickel Zinc ◽  
The United Kingdom ◽  
The Common ◽  
Lead Nickel ◽  
The Impact

This paper discusses the derivation of environmental quality standards for coastal waters and the difficulties of using such standards for controlling industrial discharges. Attention is focused on the common List II substances, copper, chromium, lead, nickel, zinc and arsenic - and their effects on marine life. The adequacy of existing toxicity data is discussed and it is concluded that long exposure tests are required to provide information on sublethal effects. Such data are currently limited. It is also important that consideration be given to the effects that reducing salinities and increasing temperatures have in increasing the toxicity of these substances. The complexity of interpreting the results of laboratory toxicity data to coastal waters is discussed with reference to a study of the impact of an industrial discharge.

scholarly journals Evolution of innate and adaptive immune genes in a non-model waterbird, the common tern

2021 ◽  
pp. 105069
Author(s):  
Piotr Minias ◽  
Joanna Drzewińska-Chańko ◽  
Radosław Włodarczyk
Keyword(s):  
Common Tern ◽  
Immune Genes ◽  
Adaptive Immune ◽  
The Common

ON THE NEST AND EGGS OF THE COMMON TERN (S. FLUVIATILIS). A THIRD COOPERATIVE STUDY

Biometrika ◽  
1923 ◽  
Vol 15 (3-4) ◽  
pp. 294-345
Author(s):  
D. M. S. WATSON ◽  
KATHERINE M. WATSON ◽  
HELGA S. PEARSON ◽  
M. NOEL KARN ◽  
J. O. IRWIN ◽  
...  
Keyword(s):  
Common Tern ◽  
Cooperative Study ◽  
The Common

scholarly journals Preventing crop raiding by the Vulnerable common hippopotamus Hippopotamus amphibius in Guinea-Bissau

Oryx ◽  
2016 ◽  
Vol 51 (2) ◽  
pp. 222-229 ◽  
Author(s):  
Luis M. González ◽  
Francisco G. D. Montoto ◽  
Tome Mereck ◽  
Junior Alves ◽  
José Pereira ◽  
...  
Keyword(s):  
Coastal Waters ◽  
Rice Fields ◽  
Crop Damage ◽  
Running Water ◽  
Rice Farmers ◽  
Guinea Bissau ◽  
Hippopotamus Amphibius ◽  
Electric Fencing ◽  
Effective Deterrent ◽  
The Common

AbstractGuinea-Bissau is host to the westernmost subpopulation of the common hippopotamus Hippopotamus amphibius, which is one of only two known populations inhabiting coastal waters. The presence of hippopotamuses causes conflict with rice farmers as a result of crop damage and the absence of effective measures to protect crops. To develop an effective method for protecting rice fields, we studied the patterns of access to flooded and rain-fed rice fields by hippopotamuses and assessed the effect of the installation of electric fences. Hippopotamuses were detected in 54% of the flooded fields (n = 100) and in 31.9% of the rain-fed fields (n = 91). They were detected more frequently in fields on offshore islands than on the mainland, in unfenced than in fenced fields, and in fields closer to running water. Hippopotamuses entered fenced flooded fields less frequently than unfenced, and were detected most frequently at the end of the rainy season and the start of the dry season, and in the period of vegetative stem growth. Electric fences were an effective deterrent and facilitated increased rice production. The maintenance and cost of the electric fencing were acceptable to farmers, and therefore the use of such fencing is recommended to resolve the conflict between hippopotamuses and farmers in Guinea-Bissau and in other areas with similar conditions.

scholarly journals Does the vicinity of the Black-Headed Gull colony (Chroicocephalus ridibundus) increase the breeding success of the Common Tern (Sterna hirundo) on the islands of the middle Vistula?

2018 ◽  
Vol 16 (4) ◽  
pp. 43-50
Author(s):  
Dariusz Bukackiński ◽  
Monika Bukacińska ◽  
Milena Grabowska
Keyword(s):  
Hatching Success ◽  
Single Species ◽  
Common Tern ◽  
Egg Mass ◽  
Chick Survival ◽  
Effective Protection ◽  
Vistula River ◽  
Nesting Site ◽  
The Common ◽  
The City

We conducted our study in the Common Tern colony (STH) located on an island in the middle Vistula River course, at the height of the city of Dęblin (km 393–394 of the waterway), in 2017. Our goal was to investigate some aspects of the biology and reproductive ecology of this species. Due to the fact that STH breeds both in single-species as well as in two- or multi-species colonies, in associations with Little Terns (Sternula albifrons), Black-Headed Gulls (Chroicocephalus ridibundus) (LAR) and/or Mew Gulls (Larus canus), we wanted to investigate whether the neighborhood of other species (in this case LAR) affected hatching success and chick survival in STH. Our results clearly show that the presence of breeding terns in the neighborhood of the LAR colony was not accidental and/or caused by the lack of space on the island and/or the possibility of nesting elsewhere. The height of nesting site, type of nesting habitat, clutch size, mean egg volume and mean egg mass of these STH pairs did not differ significantly from those that formed a single species colony, on the same island but several hundred meters away. However, STH nests in the neighborhood of the LAR colony were established much earlier and both the hatching success and chick survival of STH during the early-chick stage were twice as high. Thus, we can conclude that the LAR colony could provide an effective protection against predation of crows, magpies and gulls, dangers which accounted for the vast majority of STH nest failures in the year of our study.

scholarly journals Assessment of ecological state of the Posyet Bay (the Sea of Japan) by heavy metals content in brown algae

2017 ◽  
Vol 6 (2) ◽  
pp. 91-95
Author(s):  
Nadezhda Konstantinovna Khristoforova ◽  
Anna Dmitrievna Kobzar
Keyword(s):  
Heavy Metals ◽  
Sea Of Japan ◽  
Coastal Waters ◽  
Atmospheric Transport ◽  
The Sea Of Japan ◽  
High Concentration ◽  
The North ◽  
Recreational Pressure ◽  
North Western ◽  
Sargassum Miyabei

The paper contains the study of heavy metals in three species - Sargassum miyabei , Sargassum pallidum , Cystoseira crassipes in the coastal waters of the Posyet Bay. The analysis of the spatial distribution of trace elements revealed the highest contents of zinc, copper and nickel in the Troitsa Bight, due to recreational pressure and a high concentration of nickel and cadmium in Sivuchya Bight that was caused by transboundary atmospheric transport. All of detected concentrations exceed natural background values for the North-Western part of the Sea of Japan. The authors show that there has been a distinct change in the environmental situation in the the Posyet Bay since 1998: the concentration of lead has sharply decreased, the content of zinc, copper and cadmium has decreased, it could be connected with influence reduction in the free economic zone, located on the Chinese side on the Tumannaya River.

Population Genetics and Gene Flow of the Common Tern

The Condor ◽  
1990 ◽  
Vol 92 (1) ◽  
pp. 182-192 ◽  
Author(s):  
Sherman L. Burson
Keyword(s):  
Population Genetics ◽  
Gene Flow ◽  
Common Tern ◽  
The Common
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