The diet of Mustelus schmitti in areas with and without commercial bottom trawling (Central Patagonia, Southwestern Atlantic): Is it evidence of trophic interaction with the Patagonian shrimp fishery?

Food Webs ◽  
2021 ◽  
pp. e00214
Author(s):  
Alessandra T. Pasti ◽  
Nelson D. Bovcon ◽  
Julián Ruibal-Núñez ◽  
Ximena Navoa ◽  
Kevin J. Jacobi ◽  
...  
Keyword(s):  
Trophic Interaction ◽  
Southwestern Atlantic ◽  
Bottom Trawling ◽  
Shrimp Fishery ◽  
Mustelus Schmitti

Bahía Engaño: a north Patagonian nursery area for the smoothhound shark Mustelus schmitti (Carcharhiniformes: Triakidae)

2001 ◽  
Vol 81 (5) ◽  
pp. 851-855 ◽  
Author(s):  
Silvina Van der Molen ◽  
Guillermo Caille
Keyword(s):  
Surf Zone ◽  
Reproductive Potential ◽  
Stomach Contents ◽  
Nursery Area ◽  
Small Fish ◽  
High Productivity ◽  
Shrimp Fishery ◽  
Length Range ◽  
By Catch ◽  
Mustelus Schmitti

Mustelus schmitti (Carcharhiniformes: Triakidae) studied in the present work were caught incidentally in the shrimp fishery of the south of Bahía Engaño (Patagonia, Argentina). This bay is a shallow water, high productivity coastal area where shrimps and small fish are abundant throughout the warmer months. Young of M. schmitti are found in the bay from late spring to mid autumn. The analysis of stomach contents showed that the young feed mainly on crustaceans; the shrimp Artemesia longinaris being the main prey item. The bay serves as a nursery area for M. schmitti, and the length range and umbilical scars present in all the specimens studied revealed that the individuals were newborns.At Bahía Engaño, fishing trawls in the intertidal and surf zone are common, and ∼80% of the total number of species caught is considered as by-catch. The newborns and juvenile M. schmitti are an important element of this by-catch. Since the reproductive potential of the smoothhound shark is low, the protection of these newborns and juveniles from fishing pressure is of great importance.

Ontogenetic habitat preferences of the narrownose smooth-hound shark, Mustelus schmitti, in two Southwestern Atlantic coastal areas

Hydrobiologia ◽  
2010 ◽  
Vol 661 (1) ◽  
pp. 445-456 ◽  
Author(s):  
Federico Cortés ◽  
Andrés J. Jaureguizar ◽  
Roberto C. Menni ◽  
Raúl A. Guerrero
Keyword(s):  
Habitat Preferences ◽  
Coastal Areas ◽  
Southwestern Atlantic ◽  
Atlantic Coastal ◽  
Mustelus Schmitti

scholarly journals Ecological and socio-economic assessment of Kenyan coastal fisheries: the case of Malindi-Ungwana Bay artisanal fisheries versus semi-industrial bottom trawling

Afrika Focus ◽  
2013 ◽  
Vol 26 (2) ◽  
pp. 151-164
Author(s):  
Cosmas Nzaka Munga ◽  
Edward Kimani ◽  
Ann Vanreusel
Keyword(s):  
Fishery Management ◽  
Scientific Information ◽  
Economic Assessment ◽  
Management Plan ◽  
Current Status ◽  
Background Information ◽  
Catch Per Unit Effort ◽  
Bottom Trawling ◽  
Shrimp Fishery ◽  
Fisheries Resources

This study explores and describes the status of the fisheries resources in the Malindi-Ungwana Bay, Kenya. In addition to shrimp bottom trawling, the bay also supports a variety of artisanal fishing techniques with associated resource-use conflict experienced for quite some time until a ban on bottom trawling was imposed. This study therefore, focuses on a before and after the trawling ban effect on shrimp populations and finfish bycatch distribution and abundance, and the characterisation of artisanal finfish catches in terms of catch composition, catch-per-unit-effort, and mean trophic level by vessel-gear categories. Apart from providing the current status of exploitation level of the fisheries resources, the scientific information generated from this study is also useful for the revision of the shrimp fishery management plan that was formulated with inadequate scientific and background information during the six year bottom trawling ban in the bay.

Commercial trawling in seagrass beds: bycatch and long-term trends in effort of a major shrimp fishery

2014 ◽  
Vol 513 ◽  
pp. 143-153 ◽  
Author(s):  
CD Stallings ◽  
JP Brower ◽  
JM Heinlein Loch ◽  
A Mickle
Keyword(s):  
Seagrass Beds ◽  
Shrimp Fishery ◽  
Long Term Trends

A New Species of Parmaturus (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) from Brazil, Southwestern Atlantic

Copeia ◽  
2019 ◽  
Vol 107 (2) ◽  
pp. 314 ◽  
Author(s):  
Karla Diamantina De Araújo Soares ◽  
Marcelo Rodrigues De Carvalho ◽  
Paulo Ricardo Schwingel ◽  
Otto Bismarck Fazzano Gadig
Keyword(s):  
New Species ◽  
Southwestern Atlantic ◽  
A New Species

scholarly journals A new species of Trichopeltarion A. Milne-Edwards, 1880, from the Southwestern Atlantic (Crustacea: Brachyura: Atelecyclidae)

2005 ◽  
Vol 45 (18) ◽  
pp. 235-242 ◽  
Author(s):  
Marcos Tavares ◽  
Gustavo Augusto S. de Melo
Keyword(s):  
New Species ◽  
Southwestern Atlantic ◽  
A New Species

A new species of Trichopeltarion A. Milne-Edwards, 1880, is described from off coast of Brazil, namely Trichopeltarion pezzutoi n. sp. The new species is compared to its Atlantic congeners, Trichopeltarion nobile A. Milne-Edwards, 1880, and Trichopeltarion intesi (Crosnier, 1981). The record of T. nobile from Brazil should actually be attributed to T. pezzutoi n. sp. The differences between the genera Trichopeltarion and Peltarion Jacquinot, 1847 are discussed.

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