Comparative reproductive biology of two southwestern Atlantic populations of the hermit crab Pagurus exilis (Crustacea: Anomura: Paguridae)

2010 ◽  
Vol 31 (4) ◽  
pp. 584-591 ◽  
Author(s):  
Mariana Terossi ◽  
Lucas S. Torati ◽  
Ivana Miranda ◽  
Marcelo A. Scelzo ◽  
Fernando L. Mantelatto
1996 ◽  
Vol 25 (0) ◽  
pp. 86-92 ◽  
Author(s):  
Seiji Goshima ◽  
Satoshi Wada ◽  
Hirofumi Ohmori

1995 ◽  
Vol 24 (0) ◽  
pp. 23-32 ◽  
Author(s):  
Satoshi Wada ◽  
Seiji Goshima ◽  
Shigeru Nakao

2013 ◽  
Vol 61 (2) ◽  
pp. 161-168 ◽  
Author(s):  
Mirna Regina dos Santos Tambourgi ◽  
Fábio H.V. Hazin ◽  
Paulo G.V. Oliveira ◽  
Rui Coelho ◽  
George Burgess ◽  
...  

The present study sought to study the reproductive biology of the oceanic whitetip shark, Carcharhinus longimanus, in the equatorial and southwestern Atlantic Ocean. A total of 234 specimens were collected as bycatch during pelagic longline fisheries targeting tunas and swordfish, between December 2003 and December 2010. The fishing area was located between latitudes 10N and 35S and longitudes 3E and 40W. Of the 234 individuals sampled, 118 were females (with sizes ranging from 81 to 227 cm TL, total length) and 116 males (ranging from 80 to 242 cm TL). The reproductive stages of the females were classed as immature, mature, preovulatory and pregnant, while males were divided into immature, maturing and mature. The size at maturity for females was estimated at 170.0 cm TL, while that for males was between 170.0 and 190.0 cm TL. Ovarian fecundity ranged from 1 to 10 follicles and uterine fecundity from 1 to 10 embryos. The reproductive cycle of this species is most likely biennial, with parturition occurring once every two years.


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