Distribution, environment and biology of batoid fishes off Argentina, Uruguay and Brazil. A review.
By R. Menni, M. Stehmann. 2000
182 citations recorded by the source corpus.
Available published and unpublished information on the distribution , environment and biology of batoid fishes occurring off Brazil, Uruguay and Argentina is summarized and reviewed for sixty species. Zoogeographic provinces proposed by Lopez (1963, 1964) are considered an adequate framework to define the distribution of these species. The Magellanic fauna, which includes the Pacific Ocean coast off Chile, is a well-defined biological unit. Conversely, the northern fauna changes gradually from the temperate Bonaerensean District off northern Argentina, Uruguay and southern Brazil, to a subtropical and tropical fauna along most of the Brazilian coast. The more drastic change to a truly tropical fauna occurs off French Guiana and Surinam. Within the area studied, rajids are the dominant batoid family, with a large number of rhinobatids and myliobatoids to the north. A more detailed cluster analysis (Jaccard) of batoid distribution patterns, results in nine groups largely corresponding with biological and distributional information: Group I of Magellanic species, Group II of three Magellanic species extending into the Bonaerensean District, a small Group III formed by the deep water skates Bathyraja schroederi , Amblyraja frerichsi and Dasyatis cf . pastinaca , another small Group IV of species with uncommon distributions, Group V of Bonaerensean species, Group VI of relatively rare deep water species, Group VII of northern migrants into the Bonaerensean District, Group VIII of Brazilian species occurring in both the South Brazilian and Brazilian districts, and a completely different Group IX of Northern Brazilian species with their southern distributional limit usually at Rio de Janeiro. A large amount of information is available on many of the species, regarding depth and temperature of occurrence, patterns of distribution, and in many cases reproduction and feeding. Preliminary evaluations of abundance have been obtained for a few species only, but the risk of overfishing is clearly documented for some of them. An odd taxonomic - geographic situation is the status of D . cf. pastinaca , and a peculiar type of cloacal gestation has been described for Benthobatis (similar to that in Squatina ). Studies at community ecology level are discussed and full references provided, including many reports only published as meeting summaries.
Subfields: Ecology, Nature and Landscape Conservation
View Paper: https://www.semanticscholar.org/paper/597f5398e9b2669e37bf4f04fe1253b2613702a7
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Citations in the corpus
- Standardized diet compositions and trophic levels of skates (Chondrichthyes: Rajiformes: Rajoidei) (2007, background): “In addition, skates appear to exhibit a fairly high degree of endemism, with many species having somewhat localized regional distributions (McEachran and Miyake 1990; Compagno et al. 1991; Menni and Stehmann 2000; Last and Yearsley 2002).”
- Biodiversity and systematics of skates (Chondrichthyes: Rajiformes: Rajoidei) (2007, unknown): “The western South Atlantic region has improved markedly in recent years with works by McEachran (1982, 1983), Menni and Stehmann (2000), Cousseau (Cousseau et al. 2000), Gomes (2002), and de Carvalho (2005).”
- Marine biodiversity at the community level: zoogeography of sharks, skates, rays and chimaeras in the southwestern Atlantic (2010, background): “The ichthyofauna living in these two large areas is well known from information obtained by large foreign expeditions and local research since the early twentieth Century (Norman 1937; Krefft 1968; Ringuelet 1984; Menni 1981; Menni and López 1984; Menni and Stehmann 2000).”