Aspectos ecologicos na etnoictiologia dos pescadores do complexo estuarino-lagunar Mandau-Manguaba, Alagoas

Abstract

A maioria dos modelos utilizados em ciência pesqueira baseia-se nas equações de Volterra ( ••• ). As equaçoes reciprocas, que supÕem seja o homem regulado pelas populççÕes de peixes, nunca são escritas ou discutidas, provavelmente porque os biólogos pesqueiros acreditam que elas não têm sentido. Porém, sem dúvida, têm".

How do Artisanal Fishermen Name Fish? An Ethnotaxonomic Study in Northeastern Brazil

“…This situation contrasts, however, with the third nomenclatural principle proposed by Berlin (1992)-that generic taxa are described by primary names, while subgeneric taxa are generally assigned secondary names. Generic monotypes represented the most numerous taxa in Tamandaré and Batoque, reinforcing the patterns encountered in other fishing communities in Brazil Clauzet et al 2007;Costa-Neto and Marques 2000;Marques 1991;Mourão and Nordi 2002;Paz and Begossi 1996;Seixas and Begossi 2001) and confirming the observation that generic monotypes are the most representative names in any popular taxonomic system (Berlin 1992). We encountered a large number of specific folk taxa per generic polytype in the research areas.…”

“…In grouping fishes according to their the fishermen identify areas where fish can be found and the types of gear to be used-making it possible to plan the harvesting of given fishing areas and certifying that the tackle being used is compatible with the target species. Similar criteria and approaches have been identified in other Brazilian fishing communities Costa-Neto 2001;Costa-Neto and Marques 2000;Marques 1991;Mourão and Nordi 2002;Paz and Begossi 1996;Pinto et al 2013). Feeding habits, seasonality, and the reproductive periods of fish are additional ecological criteria known to local fishermen, and this information can facilitate the understanding of food chains, times of the year during which fish can be encountered, and reproductive season (Aswani and Lauer 2006;Begossi et al 2011;Marques 1991).…”

“…Coloration, body shapes, and the presence or absence of certain anatomical structures were the principal morphological criteria used by the fishermen in Tamanandaré and Batoque, as has been observed in other ethnotaxonomic surveys undertaken in Brazil Costa-Neto 2001;Costa-Neto and Marques 2000;Marques 1991;Mourão and Nordi 2002;Paz and Begossi 1996;Pinto et al 2013). Such criteria are important for monitoring local catches and identifying harvested ichthyofauna.…”

“…Additionally, the fishermen interviewed classified the fish of a given species according to life phase, demonstrating local knowledge of the different morphologies and habitat niches of young and adult fish (Marques 1991). This type of classification is denominated sequential and has been observed in fishing communities in the Brazilian states of Alagoas (Marques 1991), Bahia (Costa-Neto 2001, Paraíba (Mourão and Nordi 2002), and Rio de Janeiro (Paz and Begossi 1996).…”

Is there sustainability for “satellite” ornamental fishing regions? A case study of Guamá River basin- Pará -Brasil

“…Thus, knowledge about suitable captivity techniques and aquaculture methods could be an important means for improving fish quality and quantity, and ultimately raise the commercial value (Marques, 1991;Neto, 2001;Begossi and da Silva, 2004;Castello, 2007;Silveira, 2009). In addition, these practices could reduce the impact of the off-season aspect and US dollar variations throughout the years.…”