1. Trang chủ
  2. » Luận Văn - Báo Cáo

the second regional training workshop

9 2 0

Đang tải... (xem toàn văn)

THÔNG TIN TÀI LIỆU

Thông tin cơ bản

Định dạng
Số trang 9
Dung lượng 2,34 MB

Nội dung

PowerPoint Presentation The Second Regional Training Workshop on Larval Fish Identification and Fish Early Life History Science Larval Fish Identification Larval Fish Identification Larval Fish Identification (Advanced course key to species)

The Second Regional Training Workshop on Larval Fish Identification and Fish Early Life History Science (Advanced course: key to species) Group by: Tran Nhat Anh Nguyen Van Giang 4-14 July 2016, SEAFDEC/TD, Samut Prakan, Thailand Scombridae Description Family: Scombridae Genus: Scomberomorus Science name: Scomberomorus commerson Measurement: SL = 6.2mm; SnL=1.42mm; ED=0.67mm; PAL=3.5mm; HL=2.75mm; BD=1.67mm Counts: D; P1; P2; A; C; (not clearly); TM=46 Body shape: Moderate Gut: Compact Head: Very large Snout: Snout pointed and large, its length about times eye diameter Mouth: Large, oblique, reaches to about the anterior egde of the eye Eye: Round and large Head spination: A supraoccipital spine present, preopercle spine at angle elongate Fins: Not clear Pigment: Pigments in anal fin base , preanus, isthmus, low jaw, tip of jaw Scombridae Family: Scombridae Genus: Sarda Science name: Sarda orientalis Measurement: SL = 4.9mm; SnL=1.12mm; ED=0.82mm; PAL=1.83mm; HL=2.9mm; BD=1.0mm Counts: D; P1; P2; A; C; (not clearly); TM=44 Description Body shape: Moderate, tail tapering Gut: Compact Head: Very large Snout: Snout pointed and moderate large, its length about 1.5 time of eye diameter Mouth: Oplique and large Eye: Round and large Head spination: A small supraoccipital present, preopercle spines well developed Fins: Not clear Pigment: Inner pigment at anterior margin of forebrain, on both jaw tip and isthmus Engraulidae Description Family: Engraulidae Genus: Encrasicholina Science name: Encrasicholina sp Measurement: SL = 10.25mm; SnL=0.47mm; ED=0.5mm; PAL=7.5mm; HL=2.0mm; BD=0.9mm Counts: D 13; A 15; C 9+8; P1; P2; (not clearly); TM=43 Body shape: Very elongate Gut: Long and straight Head: Small Snout: Sort Mouth: Small Eye: Small and round Head spination: None Fins: Dorsal fin base present at posterior of body, anal fin rays less than 30 and origin of anal fin just under end of dorsal fin Pigment: This specimen we can not see pigment on body Scomberomorus commerson Sarda orientalis Encrasicholina sp Thank For Your Attention! Supraoccipital spine Snout pointed pigments Preopercle spine at angle elongate Inner pigment at anterior margin of forebrain Small supraoccipital spine Snout pointed Both jaw tips pigmented Preopercle spines well developed Tail tapering Origin of anal fin just under end of dorsal fin

Ngày đăng: 08/05/2023, 07:59

TÀI LIỆU CÙNG NGƯỜI DÙNG

TÀI LIỆU LIÊN QUAN