scholarly journals Ichthyofauna of the inner shelf of Paraná, Brazil: checklist, geographic distribution, economic importance and conservation status

2018 ◽  
Vol 18 (2) ◽  
Author(s):  
Daphne Spier ◽  
Humberto Luiz Nadolny Gerum ◽  
Hugo Bornatowski ◽  
Riguel Contente ◽  
Natalia A S Mattos ◽  
...  
Keyword(s):  
Continental Shelf ◽  
Geographic Distribution ◽  
Fish Species ◽  
Conservation Status ◽  
Economic Importance ◽  
The West ◽  
Species Vulnerability ◽  
Anthropogenic Threats ◽  
Inner Continental Shelf ◽  
Very High

Abstract Comprehensive species checklists are essential to effectively implementing preservation and recovery measures, and should assess conservation status, vulnerability degree and anthropogenic threats. This checklist was compiled from fish species recorded in surveys conducted over the last 30 years in the shallow inner continental shelf in the State of Paraná, Brazil. Information on biogeography, conservation status, economic importance and degree of species’ vulnerability are provided. A total of 272 fish species were recorded, spanning 25 orders and 88 families. The most speciose family was Sciaenidae (25 species), followed by Carangidae (23), Engraulidae (10), Carcharhinidae (9), Epinephelidae (9) and Paralichthyidae (9). Most species occurring in Paraná’s shallow inner continental shelf are restricted to the West Atlantic. In terms of economic importance, 93% (253) of the species recorded were of fishery, aquaculture or aquaria interest. A notable fraction (39%) of the recorded species was classified as having moderate to very high vulnerability to extinction. In particular, 28 species (10%) were listed as globally endangered, and 34 species (12%) were listed as endangered in the Brazilian territory.

scholarly journals Cambios y Evolución de las Pesquerías en al Atlántico Centro-Oriental

1973 ◽  
Vol 30 (12) ◽  
pp. 2301-2307
Author(s):  
C. Bas
Keyword(s):  
Species Composition ◽  
Primary Production ◽  
Continental Shelf ◽  
West African ◽  
Biological Characteristics ◽  
Marine Fisheries ◽  
The West ◽  
West African Coast ◽  
African Coast ◽  
Very High

This paper deals with the marine fisheries off the West African coast, between the Straits of Gibraltar and Mauritania, an area which is characterized by its relatively narrow continental shelf, the presence of the Canary Current, and intensive upwelling resulting in very high primary production and rich bottom fauna.The main fisheries (for sardines, sardinellas, hakes, sparids, cephalopods, and demersal crustaceans) are analyzed with regard to their evolution, species composition, fishing areas and seasons, the biological characteristics of the exploited stocks, and the effect of fishing on them.The criteria to be considered when planning the control and regulation of these fisheries are also analysed.

Spatial and temporal differences in assemblages of demersal fishes on the inner continental shelf off Sydney, south-eastern Australia

1994 ◽  
Vol 45 (4) ◽  
pp. 665 ◽  
Author(s):  
CA Gray ◽  
NM Otway
Keyword(s):  
Continental Shelf ◽  
Coastal Waters ◽  
Fish Fauna ◽  
Demersal Fish ◽  
Economic Importance ◽  
Future Studies ◽  
Eastern Australia ◽  
Different Depths ◽  
Inner Continental Shelf ◽  
Demersal Fishes

Variations in assemblages of demersal fishes occurring in different depths of water (30, 60 and 100 m) on the inner continental shelf off Sydney are described. Assemblages comprised a diverse and abundant ichthyofauna; many species were of economic importance. Classification analyses showed that assemblages of demersal fishes at 30 and 60 m depth were most similar to each other and that they consistently differed from those at 100 m depth. This difference may reflect a change in the demersal ichthyofauna from a nearshore to an offshore assemblage. The depth-delineated differences between assemblages agree with those found in similar studies on demersal fishes in coastal waters elsewhere. The distributions and relative abundances of many species differed markedly among depths, but such differences were not always consistent between localities or throughout time. Despite this, some species showed some temporal affinity with a particular site and/or depth. The study confirmed spatial and temporal variabilities in the demersal fish fauna in coastal waters off Sydney; such heterogeneity must be considered when future studies are designed.

Sediment Dynamics on the West Florida Inner Continental Shelf

2001 ◽  
Author(s):  
Peter Howd ◽  
Albert Hine ◽  
David Naar ◽  
Stanley Locker ◽  
David Mallinson ◽  
...  
Keyword(s):  
Continental Shelf ◽  
Sediment Dynamics ◽  
The West ◽  
Inner Continental Shelf

Sediment Dynamics on the West Florida Inner Continental Shelf

2002 ◽  
Author(s):  
Peter Howd ◽  
Albert Hine ◽  
David Naar ◽  
Stanley Locker ◽  
Clifford Merz
Keyword(s):  
Continental Shelf ◽  
Sediment Dynamics ◽  
The West ◽  
Inner Continental Shelf

Sediment Ridges on the West Florida Inner Continental Shelf: Sand Resources for Beach Nourishment

2007 ◽  
Vol 231 ◽  
pp. 143-159 ◽  
Author(s):  
Charles W. Finkl ◽  
Lindino Benedet ◽  
Jeffrey L. Andrews ◽  
Beau Suthard ◽  
Stanley D. Locker
Keyword(s):  
Continental Shelf ◽  
Beach Nourishment ◽  
The West ◽  
Inner Continental Shelf
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