Seasonal trends of the reproductive cycle of Octopus vulgaris in two environmentally distinct coastal areas

2012 ◽  
Vol 127-128 ◽  
pp. 116-124 ◽  
Author(s):  
Sílvia Lourenço ◽  
Ana Moreno ◽  
Luís Narciso ◽  
Ángel F. González ◽  
João Pereira
Keyword(s):  
Reproductive Cycle ◽  
Coastal Areas ◽  
Octopus Vulgaris ◽  
Seasonal Trends

DNA damage and metal accumulation in four tissues of feral Octopus vulgaris from two coastal areas in Portugal

2010 ◽  
Vol 73 (7) ◽  
pp. 1543-1547 ◽  
Author(s):  
Joana Raimundo ◽  
Pedro M. Costa ◽  
Carlos Vale ◽  
Maria Helena Costa ◽  
Isabel Moura
Keyword(s):  
Dna Damage ◽  
Metal Accumulation ◽  
Coastal Areas ◽  
Octopus Vulgaris

scholarly journals Reproductive cycle and energy allocation of Octopus vulgaris in Galician waters, NE Atlantic

2007 ◽  
Vol 85 (1-2) ◽  
pp. 122-129 ◽  
Author(s):  
Jaime Otero ◽  
Ángel F. González ◽  
M. Pilar Sieiro ◽  
Ángel Guerra
Keyword(s):  
Reproductive Cycle ◽  
Energy Allocation ◽  
Octopus Vulgaris ◽  
Ne Atlantic

Variation in the reproductive cycle of Elminius modestus in southern Ireland

2000 ◽  
Vol 80 (4) ◽  
pp. 607-616 ◽  
Author(s):  
Ruth M. O'Riordan ◽  
Orla Murphy
Keyword(s):  
Reproductive Cycle ◽  
Reproductive Organs ◽  
Warm Water ◽  
Male And Female ◽  
Seasonal Trends ◽  
Female Reproductive Organs

The reproductive cycle of the Australasian barnacle Elminius modestus (Crustacea: Cirripedia) was studied at three sites within Whitegate Bay, Cork, Ireland over 15 months. At all three sites, there were seasonal trends in development of the male and female reproductive organs with, for example, the ovaries regenerating whilst eggs were being brooded. Throughout the year, significantly lower percentages of animals were brooding embryos at the site of a warm-water outfall than at another site nearby. The factors which may affect the reproductive cycle of E. modestus are discussed.

Characterization and evolution of spearfishing in Madeira archipelago, Eastern Atlantic

2020 ◽  
Vol 33 ◽  
pp. 15
Author(s):  
Roi Martínez-Escauriaza ◽  
Claudio Vieira ◽  
Lídia Gouveia ◽  
Nuno Gouveia ◽  
Margarida Hermida
Keyword(s):  
Fish Species ◽  
Young Men ◽  
Coastal Areas ◽  
Teleost Fishes ◽  
The North ◽  
Southeast Coast ◽  
Madeira Archipelago ◽  
First Time

Data obtained from licenses of spearfishers and surveys conducted in 2004 and 2017 allowed for the analysis, for the first time, of the practice of spearfishing in the Madeira archipelago. Only a small percentage of the population practices spearfishing, mostly local young men. Most of them practice the activity with a partner throughout most of the year and along most of the island's coastal areas, although preferentially along the North and Southeast coast. Results show how, in recent years, despite the population of spearfishers decreasing, the abundance in the annual catch potentially increased, probably due to the higher investment of time in this activity. It has been observed that many fishers complement their catches with manual collecting of invertebrates. Overall, 40 teleost fishes and also 4 crustaceans and 8 molluscs were identified. The most frequently captured fish species were parrotfish and white seabream, while limpets were the most collected invertebrates in both selected periods.

Hormonal stimulation and some risk factors studied to improve bovine pregnancy rate at the Coastal areas of Barisal district of Bangladesh

2018 ◽  
Vol 52 (1-4) ◽  
pp. 22-30
Author(s):  
A K Paul ◽  
S M T Rahman
Keyword(s):  
Pregnancy Rate ◽  
Coastal Region ◽  
Hormonal Treatment ◽  
Coastal Areas ◽  
Pregnancy Rates ◽  
Hormonal Stimulation ◽  
Crossbred Cows ◽  
Treatment Groups ◽  
History Of ◽  
Group A

Hormonal treatment of cows at the coastal region of Barisal district of Bangladesh was performed to assess the improvement of pregnancy rate. A total of 100 cows and heifers with irregular history of cyclicity were selected randomly and divided into five treatment groups. The groups were A (treated with anthelmintic), B (treated with anthelmintic, vitamin ADE and multivitamin powder), C (treated with PGF2α), D (treated with GnRH) and E (treated with GnRH and PGF2α). Each group comprised of 20 animals. The age, breed and parity of experimental cows were considered during treatment. In the study, the cows treated with both GnRH and PGF2α (group E) showed significantly (p<0.05) higher estrus (80%) and pregnancy rate (60%) than that of group A, B, C and D. The overall estrus rates of local and crossbred cows were 64% and 70%, respectively and the pregnancy rates were 40 and 52%, respectively. The crossbred cows responded significantly (p<0.05) to hormonal treatment than that of local cows. Parity-2 cows showed higher estrus sign than that of other parities. However, the pregnancy rates were higher significantly (p<0.05) in parity-2 and parity ≥4 cows than that of parity-0, parity-1 and parity-3 cows. The pregnancy rate was also found higher in case of 4 to <5 years old cows than that of 2 to <3, 3 to <4, 5 to <6, and ≥6 years old. It may conclude that the hormonal regimen increases the pregnancy rate as well as decreases the undesired waiting of estrus and conception. Further study with more sample size will reveal the more effective treatment for cows at the coastal areas of Bangladesh.

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