27 research outputs found
ΠΠ»ΠΈΡΠ½ΠΈΠ΅ ΡΡΠ°ΡΡΡΠ° Π’ΠΠ‘ΠΠ Π½Π° ΡΡΠ½ΠΎΠΊ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΡΡ ΡΡΠ»ΡΠ³
ΠΠ° ΡΠ΅ΡΡΠΈΡΠΎΡΠΈΠΈ ΠΌΠΎΠ½ΠΎΠ³ΠΎΡΠΎΠ΄ΠΎΠ² - Π³ΠΎΡΠΎΠ΄ΠΎΠ², ΡΡΡ ΡΠΊΠΎΠ½ΠΎΠΌΠΈΠΊΠ° ΠΌΠ½ΠΎΠ³ΠΎ Π»Π΅Ρ Π·Π°Π²ΠΈΡΠ΅Π»Π° Π³ΡΠ°Π΄ΠΎΠΎΠ±ΡΠ°Π·ΡΡΡΠ΅Π³ΠΎ ΠΏΡΠ΅Π΄ΠΏΡΠΈΡΡΠΈΡ - ΠΏΡΠΎΠΆΠΈΠ²Π°Π΅Ρ ΠΎΠΊΠΎΠ»ΠΎ 9% Π½Π°ΡΠ΅Π»Π΅Π½ΠΈΡ Π ΠΎΡΡΠΈΠΈ [1]. ΠΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΈΡ
ΡΡΡΠ΄ΠΎΡΡΡΡΠΎΠΉΡΡΠ²Π° Π½Π° ΠΎΡΠΊΡΡΠ²Π°ΡΡΠΈΡ
ΡΡ ΠΏΡΠ΅Π΄ΠΏΡΠΈΡΡΠΈΡΡ
-ΡΠ΅Π·ΠΈΠ΄Π΅Π½ΡΠ°Ρ
Π’ΠΠ‘ΠΠ Π·Π°Π²ΠΈΡΠΈΡ Π½Π΅ ΡΠΎΠ»ΡΠΊΠΎ ΠΎΡ ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΠΉ Π²Π°ΠΊΠ°Π½ΡΠΈΠΉ, Π½ΠΎ ΠΈ ΠΎΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΠΈ ΠΏΠΎΠ»ΡΡΠΈΡΡ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠ΅Π΅ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅. ΠΡΠ»ΠΈ Π½Π° Π΄Π°Π½Π½ΠΎΠΌ ΡΡΠ°ΠΏΠ΅ ΠΏΠ΅ΡΠ΅Π΄ ΡΠ΅Π·ΠΈΠ΄Π΅Π½ΡΠ°ΠΌΠΈ Π’ΠΠ‘ΠΠ ΡΡΠΎΠΈΡ Π·Π°Π΄Π°ΡΠ° ΠΏΠΎ ΠΌΠ°ΠΊΡΠΈΠΌΡΠΌΡ ΠΏΡΠ΅Π΄ΠΎΡΡΠ°Π²ΠΈΡΡ ΡΠ°Π±ΠΎΡΠΈΠ΅ ΠΌΠ΅ΡΡΠ° ΡΠΆΠ΅ ΠΈΠΌΠ΅ΡΡΠΈΠΌΡΡ ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠ°ΠΌ ΠΈ ΡΠ°Π±ΠΎΡΠΈΠΌ, ΡΠΎ ΡΠΆΠ΅ ΡΠ΅ΡΠ΅Π· 5 Π»Π΅Ρ Π½Π° ΡΡΠ½ΠΊΠ΅ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΡΡ
ΡΡΠ»ΡΠ³ Π² ΠΌΠΎΠ½ΠΎΠ³ΠΎΡΠΎΠ΄Π°Ρ
Π±ΡΠ΄Π΅Ρ ΠΈΠ΄ΡΠΈ Π±ΠΎΡΡΠ±Π° Π·Π° ΠΏΡΠ°Π²ΠΎ ΠΏΡΠ΅Π΄ΠΎΡΡΠ°Π²ΠΈΡΡ ΡΠ°Π±ΠΎΡΠΎΠ΄Π°ΡΠ΅Π»ΡΠΌ Π½Π΅ΠΎΠ±Ρ
ΠΎΠ΄ΠΈΠΌΡΡ
ΡΠΏΠ΅ΡΠΈΠ°Π»ΠΈΡΡΠΎΠ²
Depth-size trends in western Mediterranean demersal deep-sea fishes
Se discute y argumenta la distribuciΓ³n de los peces en funciΓ³n de su talla. GrΓ‘ficos, Tallas, Tablas.We analyze the bathymetric trends of demersal deep-sea flshes in the Catalan Sea (NW Medlterranean) between 1000 and 2250 m depth In the first part of the study, only the pattern shown by the whole fauna (wthin-fauna pattern ) 1s considered At 1200 m there is a significant decrease In fish
mean welght, as a consequence of the replacement of the dominant large or medium-sized specles by small ones This fauna1 shift may be a consequence of the lower trophic availability at greater depths, as
shown by an important decrease in megafaunal biomass between 1000 and 2250 m In the second part, the study focuses on the depth-size trends of the most common species (within-species pattern)
Results show that the bigger-deeper phenomenon is not a well-estabhshed tendency None of the lower slope species and only 2 of the 5 middle slope species analyzed behave as bigger-deeper species
Moreover some specles which display a bigger-deeper trend in North Atlantic waters do not show any
significant trend In the Medlterranean Considering the recent Atlantic origin of Mediterranean ichthyofauna and the contrasting behaviour in the 2 areas, the hypothesis that mean slze increase with depth is the result of inherited ontogenic behaviour can be discarted.Research program BATIMAR (CSICCAICYT; reference PAC 86-008/ID 821).Peer reviewe
Π‘Π²Π΅Π΄Π΅Π½ΠΈΡ ΠΎΠ± Π°Π²ΡΠΎΡΠ°Ρ
ΠΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ Π² Π°Π»ΡΠ°Π²ΠΈΡΠ½ΠΎΠΌ ΠΏΠΎΡΡΠ΄ΠΊΠ΅ Π°Π²ΡΠΎΡΡ ΠΈ ΠΎΠ±Π»Π°ΡΡΠΈ ΠΈΡ
Π½Π°ΡΡΠ½ΡΡ
ΠΈΠ½ΡΠ΅ΡΠ΅ΡΠΎΠ², ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½Π°Ρ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ